CN2773915Y - Battery - Google Patents
Battery Download PDFInfo
- Publication number
- CN2773915Y CN2773915Y CNU2004201223564U CN200420122356U CN2773915Y CN 2773915 Y CN2773915 Y CN 2773915Y CN U2004201223564 U CNU2004201223564 U CN U2004201223564U CN 200420122356 U CN200420122356 U CN 200420122356U CN 2773915 Y CN2773915 Y CN 2773915Y
- Authority
- CN
- China
- Prior art keywords
- battery
- element cell
- stacking direction
- conductive gasket
- cells
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model relates to a battery which comprises a plurality of unit batteries which are stacked along a stacking direction, a plurality of electric conduction elements which have conductivity and a plurality of insulating elements which have insulation characteristics, wherein the electric conduction elements and the insulating elements are alternately arranged on the stacking direction of the battery, the unit batteries which are respectively provided with an output terminal are clamped among the electric conduction elements and the insulating elements, and the unit batteries are electrically connected to the stacking direction.
Description
Technical field
The utility model relates to battery and correlation technique, and more specifically relates to and have high electric energy density, structure is small and light and can be used as the battery of the power supply that macro-energy is provided, and relevant method.
Background technology
In recent years, along with to the giving more sustained attention of environmental consciousness, from using oil-fired engine to the motor that uses electric energy, great change has taken place in the energy that motor vehicle uses.Because this reason, battery is as the technology development apace of the engine energy.
Wish the such battery of motor vehicle arrangement, this battery structure is small and light and have charging and the shockproof properties and the heat dispersion of discharge big capacity electric energy and excellence under frequent cycle.
Japanese Patent Application Laid-Open No.2000-195480 (referring to segment number 0014-0029 and accompanying drawing 1,2 and 4) discloses a kind of battery.Particularly, the structure of this battery comprises a plurality of pancake element cells and the pressurizing member that series, parallel, series-parallel connection are electrically connected, wherein this pancake element cell is with on the given thickness direction that is disposed on element cell, this pressurizing member between the element cell of stacked body, thereby by fastening a plurality of element cells of crust component and at stacked body both sides presser unit battery.By this structure, attempt makes the element cell have desirable heat dispersion, has the cycle characteristics that improved and the battery of rate characteristic thereby provide.
The utility model content
Above-mentioned research according to the utility model person proposition, because this battery comprises that flat-shaped battery is as element cell, this battery has than the bigger energy density of battery that is formed by other battery that is different from flat-shaped battery, and can form the miniaturization battery with same power capacity.Because this reason, in view of the miniaturization structure with high-energy-density, the battery that flat-shaped battery constitutes is suitable for as the battery that is used for installing on motor vehicle.
Yet, further Accurate Analysis according to inventor's proposition, owing to this battery comprises in order to use the battery of developing in the power storage system, so consider to exist this structure is further studied needed space for battery need being used to the motor vehicle of production efficiency, small size and light weight, shock resistance and high reliability.
Especially, for the battery of realizing having the structure that satisfies various demands new needs are proposed: for example a kind of structure, can provide high production rate, and wherein element cell comprises a small amount of as far as possible componentry so that minimize weight to be provided, thereby maximum volume efficient is provided; A kind of structure, even wherein in frequently charging and when discharge under the circulation repeatedly, battery also can stop because of inside battery and produces the generation of the inducing capacity fading that gas causes and the reduction of battery life; A kind of structure, though be in always also have among the vibrations can steady operation shock resistance; With a kind of structure, even in the element cell of high density setting, also can dispel the heat effectively.
Finished the utility model by the above-mentioned research that the inventor carries out, and the purpose of this utility model provides a kind of battery, the structure of this battery has high-energy-density and small size and light weight, thereby optimum is as the power supply that macro-energy is provided.
And, the research of carrying out according to the inventor, consider because series connection is assembled a plurality of element cells to form battery, and in assembling process, increase along with the quantity of series unit battery, the element cell of series connection has the terminal voltage of increase, therefore should be noted that operation, thereby has the space of improvement ability.
Thereby another purpose of the present utility model provides the method for making battery, does not wherein have output HIGH voltage in the manufacture process of battery.
In order to achieve the above object, aspect one of the present utility model in, battery comprises: a plurality of element cells that pile up on stacking direction, a plurality of conducting element with conductivity; And a plurality of insulation components with insulation characterisitic, a plurality of conducting elements and a plurality of insulation component alternately are arranged on the stacking direction, and a plurality of element cells that have lead-out terminal respectively are clipped in therebetween, and a plurality of thus element cells are electrically connected on stacking direction.
Meanwhile, of the present utility model aspect another in, the method of making battery comprises: pile up a plurality of element cells on stacking direction, make a plurality of conducting elements and a plurality of insulation component alternately be arranged on the stacking direction of battery, the a plurality of element cells that have lead-out terminal respectively are clipped in therebetween, and a plurality of conducting elements have interim insulation component simultaneously; Interim fastening a plurality of conducting elements; Interim insulation component is removed from a plurality of conducting elements; And by between the lead-out terminal of a plurality of element cells, exerting pressure interim insulation component is removed abundant fastening a plurality of element cells from conducting element.
Of the present utility model other will become clearer with further feature, advantage and benefit from the description below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the perspective view according to the battery of the utility model first embodiment;
Fig. 2 is the perspective view of element cell of the battery of current submission embodiment;
Fig. 3 is the cross-sectional view of the battery shown in Fig. 1 along the A-A line;
Fig. 4 A is the perspective view of outer radiator of the battery of current submission embodiment;
Fig. 4 B is the perspective view of internal layer radiator of the battery of current submission embodiment;
Fig. 5 A is the view of the total of the presser unit of the battery of the current submission embodiment of explanation;
Fig. 5 B is the view of the structure of the spring base (spring retainer) of the battery of the current submission embodiment of explanation;
Fig. 6 A is the view along the initial condition of the presser unit of the cross-sectional view of Fig. 1 line B-B and the battery shown in the key diagram 1;
Fig. 6 B is the view of the state when the cross-sectional view of Fig. 1 line B-B and explanation presser unit are arranged between the outer radiator;
Fig. 6 C is the plane graph of inserted link (inserter) of spring base of presser unit of the embodiment battery of current submission;
Fig. 7 is the decomposition diagram of the battery of current submission embodiment;
Fig. 8 is the decomposition diagram according to the battery of the utility model second embodiment;
Fig. 9 is the decomposition diagram according to the battery of the utility model the 3rd embodiment;
The perspective view of the state of element cell is set on the framework of Figure 10 for the battery of the current submission embodiment of explanation;
Figure 11 is the perspective view of battery in the assembling process among the embodiment of the current submission of explanation;
Figure 12 is the perspective view of the battery of current submission embodiment;
Figure 13 is the schematic diagram of the circuit structure of the battery of the current submission embodiment of explanation;
Figure 14 is the perspective view according to the battery of the utility model the 4th embodiment;
Figure 15 A is the perspective view of an element cell of the battery of the current submission embodiment of explanation;
Figure 15 B is the perspective view of another element cell of the battery of the current submission embodiment of explanation;
Figure 16 is the cross-sectional view along Figure 14 line C-C;
Figure 17 is the cross-sectional view along Figure 14 line D-D;
Figure 18 is the flow chart of the assembling process of the battery of the current submission embodiment of explanation;
Figure 19 is the decomposition diagram of anabolic process that is used to illustrate the battery of current submission embodiment;
Figure 20 is the decomposition diagram that is used to illustrate the assembling process after the state shown in Figure 19;
Figure 21 is provided with the exemplary view of the insulating washer and the state of the conductive gasket with dielectric film in the embodiment of current submission for explanation;
Figure 22 A is the plane graph that an example of the conductive gasket that has dielectric film in the embodiment of current submission is described;
Figure 22 B is the cross-sectional view along Figure 22 A line F-F;
Figure 22 C illustrates the plane graph of another example of the conductive gasket that has dielectric film in the embodiment of current submission;
Figure 22 D is the cross-sectional view along Figure 22 C line G-G;
Figure 22 E is the plane graph that another example of the conductive gasket that has dielectric film in the embodiment of current submission is described;
Figure 22 F is the cross-sectional view along Figure 22 E line H-H;
Figure 23 A is the plane graph that an example of the conductive gasket that has interim insulator in the embodiment of current submission is described;
Figure 23 B is that it shows the state before fastening location along the cross-sectional view of Figure 23 A line I-I;
Figure 23 C is the cross-sectional view along Figure 23 A line I-I, and it shows another state after fastening location;
Figure 24 A is the plane graph that another example of the conductive gasket that has interim insulator in the embodiment of current submission is described;
Figure 24 B is that it shows the state after fastening location along the cross-sectional view of Figure 24 A line J-J;
Figure 24 C is the cross-sectional view along Figure 24 A line J-J, and it shows another state before fastening location;
Figure 25 A is the plane graph that another example of the conductive gasket that has interim insulator in the embodiment of current submission is described;
Figure 25 B is that it shows the state before fastening location along the cross-sectional view of Figure 25 A line K-K;
Figure 25 C is the cross-sectional view along Figure 25 A line K-K, and it shows in fastening location another state subsequently;
Figure 26 is the plane graph that another example of the conductive gasket that has interim insulator in the embodiment of current submission is described;
Figure 27 is in the embodiment of current submission after the fastening rationed marketing, the view of the state of the conductive gasket with interim insulator shown in Figure 26;
Figure 28 is provided with the exemplary view of insulating washer and another example of the state of the conductive gasket with dielectric film in the embodiment of current submission for explanation.
Embodiment
After this, will be with reference to battery and the correlation technique of suitable accompanying drawing description according to the various embodiment of the utility model.Incidentally, run through several views, x-, y-and z-axle form three rectangular coordinate systems.
(first embodiment)
Now, will be with reference to battery and the correlation technique thereof of figure 1-7 detailed description according to the utility model first embodiment.
At first, the schematic structure to the battery of current submission embodiment is described.
Fig. 1 is the perspective view of the battery BA of current submission embodiment; Fig. 2 is the perspective view of the element cell of this battery of formation; And Fig. 3 is the cross-sectional view along Fig. 1 line A-A.
As shown in Fig. 1-3, the schematic structure of battery BA comprises a plurality of flat-shaped batteries 1 stacked body of (after this only being called element cell), is stacked on the radiator 2a on the element cell 1 among the embodiment of current submission, 2b, place between the element cell 1 and element cell 1 and radiator 2a, big friction plate between the 2b (high friction sheets) 3 and maintaining body 4, wherein a plurality of stacked unit cells 1 are pressurizeed, thereby make these a plurality of element cells therein integrally contained by maintaining body 4 (along z direction) on stacking direction.
After this, describe battery BA and element thereof in detail, in case of necessity also with reference to other accompanying drawings.
＜element cell 〉
About element cell 1, the laminated film with three-decker is as shell and form three layers that comprise the aluminium foil that places between the resin molding that is made by polyamide.In two laminated films, thin slice is by lamination on another thin slice of laminated film, keeps chip shape at edge separately by thermal weld and form pancake.Generating element is sealed in the laminal laminated film.When carrying out this process, though laminated film is introduced in the punch die, the outermost layer of laminated film is to be formed by the resin molding with little skin-friction coefficient, so laminated film can not be subjected to the reaction that caused by the friction between laminated film and the punch die.Incidentally, about battery BA, element cell 1 piles up in the direction identical with the stacking direction of capsulated generating element.
As by what understood with reference to figure 3, replace stacked unit cells 1, make electrode slice alternately be arranged on the stacking direction with positive polarity and negative polarity, just, alternately pile up positive plate 10 and negative plate 12.Be arranged alternately conductive gasket 50 and insulating washer 51 by insulator pin 52, thereby clamp positive plate 10 and negative plate 12.Especially, insulating washer 51 places between positive plate 10 and stacked thereon the negative plate 12, and conductive gasket 50 places between negative plate 12 and stacked thereon the positive plate 10.When the packing ring on the attention identical layer, by the embodiment of current submission, insulating washer 51 is placed on the positive plate 10, and conductive gasket 50 is placed on the negative plate 12.Incidentally, though conductive gasket 50 and insulating washer 51 lay respectively on the positive plate 10 and negative plate 12 of the element cell 1 that remains on the superiors,, also have no relations if according to circumstances omit these parts according to the order that electrode slice is set.
Therefore, because positive plate 10 and negative plate 12 alternately are set on stacking direction, battery BA inside has circuit, by this circuit electrical connecting unit battery 1 so that electric current flows to the lower floor of stacked structure from the upper strata of stacked structure.Incidentally, when hope makes electric current when the lower floor of stacked structure flows to the upper strata of stacked structure, conductive gasket 50 is set oppositely and insulating washer 51 is just passable.
Here, conductive gasket 50 and insulating washer 51 preferably have as far as possible little surface roughness.If surface roughness is big, when passing through nut 53a, 53b is in the packing ring both sides when fastening conductive gasket 50 and insulating washer 51, cause the surface fatigue of conductive gasket 50 and insulating washer 51, and fastening force fails, thereby the resistance between electrode slice 10,12 and the conductive gasket 50 is increased, cause the reliability of electrical connection decline between the electrode slice 10,12.
Incidentally, according to the circuit that forms at inside battery, wherein electric current is moving to underflow from the upper strata, the power supply terminal (not shown) can be placed between nut 53a and the conductive gasket 50 and between nut 53b and the insulating washer 51b, thereby can projected current, make the controller (not shown) can detect the voltage of battery BA simultaneously.And, when in conjunction with a plurality of element cell 1 shown in Fig. 1, use this power supply terminal certainly.
＜radiator 〉
Fig. 4 A is the perspective view of outer radiator 2a, and Fig. 4 B is the perspective view of internal layer radiator 2b.
As shown in Figure 4A and 4B, the radiator that forms the embodiment part of current submission comprises outer radiator 2a and internal layer radiator 2b, and outer radiator 2a is placed on the outermost layer of stacked structure, and internal layer radiator 2b is arranged on the centre of battery BA stacked structure together with element cell 1 simultaneously.
In internal layer radiator 2b, do not resemble the hole 22 the outer radiator 2a.When element cell 1 is stacked among the battery BA, internal layer radiator 2b is contained on the pressure surface that contacts with element cell 1 by presser unit 40.Internal layer radiator 2b suitably is arranged between the element cell 1 by this way: when piling up four blade unit batteries 1, a slice internal layer radiator 2b is arranged on this stacked body, as shown in Figure 3.This sheds the heat that produces in element cell 1 from stacked structure.
＜big friction plate 〉
As shown in Figure 3, the big friction plate 3 of the embodiment of current submission is interposed between the element cell 1 or element cell 1 and radiator 2a, between the 2b.Big friction plate 3 is made by the silicon rubber that forms laminated structure.The frictional resistance that occurs when the frictional resistance that silicon rubber demonstrates compares mutual or contact laminating element cell 1 is bigger.Therefore, between element cell 1 or at element cell 1 and radiator 2a, insert big friction plate 3 between the 2b and make laterally moving of these parts minimum.
Meanwhile, though big friction plate 3 demonstrates big frictional force horizontal aspect mobile, almost do not demonstrate on aspect the stacking direction of element cell 1 bonding.Therefore, about element cell 1 and radiator 2, big friction plate 3 does not have bonding.Other has explanation, and big friction plate 3 is not to make element cell 1 or element cell 1 and radiator 2a own, the sort of type that 2b connects forever, and have the characteristic that makes these elements separated from one another.
＜maintaining body 〉
As shown in fig. 1, the maintaining body 4 of the embodiment of current submission comprises outer radiator (holding plate) 2a that will be stacked on the battery BA outermost layer, is arranged on the presser unit 40 between the outer radiator 2a and presser unit 40 is installed in nut 4l on the outer radiator 2a.
As previously mentioned, outer radiator 2a is stacked on the outermost layer of battery BA with the cooling element as cooling unit battery 1.Meanwhile, outer radiator 2a also is used as the part of supporting mechanism 4, this supporting mechanism 4 applies surface pressing to element cell 1 and internal layer radiator 2b respectively, and when remaining on these elements in the fixed position, element cell 1 is stacked on the centre of stacked structure on stacking direction.As part holding element 4, by presser unit 40, outer radiator 2a applies power on the direction each other more closely at the element that makes combination.
Fig. 5 A is the view of explanation presser unit 40 totals; Fig. 5 B is the view of the spring base structure of presser unit 40; Fig. 6 A is cross-sectional view and the view that the initial condition of presser unit 40 is shown along Fig. 1 line B-B; Fig. 6 B is for along the cross-sectional view of Fig. 1 line B-B with the view of the state when presser unit 40 being shown being arranged between the outer radiator 2a; And Fig. 6 C is the plane graph of inserted link 47 (inserter) of the spring base 43 of presser unit 40.
To as shown in the 6C, pressurizing member 40 comprises the spring base 43 at stretch coil spring (elastic body) 42 and clamping stretch coil spring 42 two ends as Fig. 5 A.
By being arranged on the stretch coil spring 42 that is in tension between the outer radiator 2a, stretch coil spring 42 demonstrates pulling force to make outer radiator 2a produce elastic force on the direction more closely each other.
Make main part 44 realize meshing, thereby limit its terminal position with the next-door neighbour of stretch coil spring 42 ends.And by the presser unit 40 that is assembled into battery, main part 44 realizes the next-door neighbour's engagement with outer radiator 2a, thereby plays the effect that restriction stretch coil spring 42 increases length.
The end of screw portion 45 precession stretch coil springs 42 and the inside of meshing stretch coil spring 42 in inside, it is therefore fastening.As shown in Fig. 5 B, screw portion 45 has outer fringe surface, and this surface is formed with the screw thread spiral shell ridge that pitch is P2.The pitch P 2 of screw portion 45 is greater than the pitch P 1 of stretch coil spring 42.Therefore, screw portion 45 can be tightened in the direction shown in Fig. 5 B arrow, and tightens screw portion 45 leg portion 46 is advanced towards the center of stretch coil spring 42.
Shown in Fig. 5 A, when when screw portion 45 is tightened at the two ends of stretch coil spring 42, the leg portion 46 of advancing from both sides realizes and stretch coil spring 42 terminal engagements that combine.In this case, stretch coil spring 42 is stretched from natural length, under the initial condition of presser unit 40, provide initial tensile force thus.
Inserted link 47 has end, and this end has the screw thread spiral shell ridge 47a of clamp nut 41.Inserted link 47 has head, and this head is formed with suitable driving otch 48, as shown in Fig. 6 C.The point of bearing driver is installed to makes spring base 43 its rotations of locking on the otch 48.
As shown in Figure 6A, inserted link 47 was inserted the hole 22 of outer radiator 2a.In this state, as shown in Fig. 6 B and 6C, the rotation of a spring base 43 of locking, and the inserted link 47 of another spring base 43 is tightened by nut 41 on directions X and is fastening.Draw spring base 43 towards nut 41 then.Similarly, it is fastening that drive nut 41 makes the inserted link 47 of other residue spring bases 43.Then,, spring base 43 is drawn back each other along with stretch coil spring 42 is held, and at stretch coil spring 42 clamping stretch coil spring 42 under situation about stretching between the outer radiator 2a.
By this way and since stretch coil spring 42 stretched with outer radiator 2a between the consistent distance of distance, can obtain the resilience force that on the direction that stretch coil 42 is shortened, acts on so become, and the fastening turning power that applies regardless of nut 41.By outer radiator 2a, this turning power provides the pressure that imposes on element cell 1.
＜assembling process 〉
Next, carry out the assembling process of the battery BA of current submission embodiment is described, wherein this battery BA has said structure.
Fig. 7 is the decomposition diagram of the necessary part of explanation battery BA.
As shown in Figure 7, at first, outer radiator 2a is arranged on the bottom and a plurality of element cells 1 are piled up thereon.Here,, electrode slice 10,12 is set, makes positive plate 10 and negative plate 12 alternately be arranged on the stacking direction by insulator pin 52 for a plurality of element cells 1.The electrode slice 10,12 o'clock of element cell 1 is set by insulator pin 52 at every turn, also conductive gasket 50 and insulating washer 51 sequentially is set by insulator pin 52.
Here, on stacking direction by insulator pin 52 arranged alternate conductive gasket 50 and insulating washer 51 be set.For the positive plate 10 and the negative plate 12 of same element cell 1, conductive gasket 50 is arranged on the negative plate 12 on the one hand, and on the other hand, insulating washer 51 is arranged on the positive plate 10.That is, dissimilar packing rings are provided with respectively on the positive plate 10 and negative plate 12 of same element cell 1.
Then, in a plurality of stages, pile up other element cells 1, just, pile up four blade unit batteries 1, and another internal layer radiator 2b is arranged on the top of the element cell 1 that piles up.
Subsequently, element cell 1 and the certain number of times of internal layer radiator 2b are set repeatedly after, last, outer radiator 2a is arranged on the top of stacked structure.
After this, in that being set between the outer radiator 2a, between outer radiator 2a, stretches presser unit 40 and clamp nut 41 stretch coil 42 up to presser unit 40, thus assembled battery BA as shown in Figure 1.
Incidentally, during piling up, on each surface of element cell 1, outer radiator 2a and internal layer radiator 2b, place big friction plate 3.
As mentioned above, according to the battery BA of current submission embodiment, between the positive plate 10 of element cell 1 and negative plate 12, conductive gasket 50 and insulating washer 51 are being set alternately on the stacking direction by insulator pin 52.Therefore, by being arranged alternately the circuit that element cell 1 that conductive gasket 50 and insulating washer 51 can easily realize wherein piling up sequentially is connected in vertical direction.
Incidentally, though in conjunction with the monolithic battery BA demonstration of element cell 1 vertical stacking wherein the embodiment of current submission is shown, certainly, the embodiment of current submission is not that restriction and a plurality of batteries of all being made up of many groups element cell 1 can connect side by side to form battery pack, and this battery pack has the electric energy of further increase and exports.This situation is electrically connected to each other battery just passable by the busbar that is installed on the battery.Busbar can be installed on the insulator pin 52 and by nut 53a, 53b is fastening.
＜the second embodiment 〉
Next, describe battery and correlation technique thereof in detail with reference to figure 8 according to the utility model second embodiment.
Fig. 8 is the decomposition diagram of the battery of current submission.
The embodiment of current submission is different from first embodiment of above-mentioned proposition, because insulator pin 52 directly inserts the electrode slice 10 of element cell 1 in the shape and structure that adopts among first embodiment, in 12, and conductive gasket 50 and insulating washer 51 alternately are set by insulator pin 52, yet insulator pin 52 does not directly insert electrode slice 10 in the form structure that second embodiment adopts, 12, and insulator pin 52 is inserted into respectively from electrode slice 10, in 12 busbars that stretch out (lead-out terminal and parallel connected element), and, be arranged alternately conductive gasket 50 and insulating washer 51 by insulator pin 52, and other structures of second embodiment are identical.After this, emphasis is described these differences, and the part identical with first embodiment have identical Reference numeral, thereby omits or simplify and describe.
As shown in Figure 8,, connect shared positive plate 10 and shared negative plate 12 respectively, thereby make one group of element cell 1 parallel connection by busbar 6 for one group of two element cell 1.Busbar 6 is welded to and is connected on positive plate 10 and the negative plate 12.That is, by this structure, busbar 6 constitutes the lead-out terminal of two element cells 1.
After this, the busbar 6 that connects positive plate 10 is called busbar 6a, and the busbar 6 that connects negative plate 12 is called busbar 6b.It is porose 60 that busbar 6a, 6b form respectively, and insulator pin 52 can insert wherein.When constituting battery, when in insulator pin 52 patchholes 60, pile up one group of element cell 1 here, when stacked unit cells 1, insulator pin 52 is respectively in the patchholes 60, makes busbar 6a, and 6b alternately is stacked on the stacking direction.Therefore, by busbar 6a, 6b is inserted into respectively in the insulation strip pin 52, can make every group of element cell 1 location.
Also conductive gasket 50 and insulating washer 51 are set respectively by insulator pin 52.By each insulator pin 52 conductive gasket 50 and insulating washer 51 are arranged on busbar 6a one by one on stacking direction, between the 6b.As shown in Figure 8, by insulator pin 52 insulating washer 51 being arranged in lowermost layer is arranged on insulating washer 51 on the busbar 6a, as shown in FIG., and by insulator pin 52 conductive gasket 50 is arranged in busbar 6a top it is arranged on the busbar 6b.
Incidentally, for the stack manner of element cell 1 is described, from Fig. 8, omit radiator 2a, 2b and big friction plate 3, certainly can understand, when forming battery, with identical among first embodiment, outer radiator 2a is arranged on two outermost surfaces of stacked structure, and radiator 2b is set for the stacked body of the element cell 1 that is provided with in a plurality of stages.Then, presser unit 40 is arranged between the outer radiator 2a exerting pressure for element cell 1, thereby holds them in the fixed position.And in the process of piling up, big friction plate 3 is used for each surface of element cell 1, outer radiator 2a and internal layer radiator 2b.
As mentioned above,, busbar 6a alternately is set on stacking direction, 6b and conductive gasket 50 and insulating washer 51 alternately are set on stacking direction by insulator pin 52 by insulator pin 52 according to the battery of current submission embodiment.Therefore, element cell 1 with the vertical direction of stacking direction in parallel and on stacking direction, connect.
Incidentally, described the embodiment of current submission with reference to two element cells 1 wherein by the exemplary configuration of busbar 6 parallel connections, the embodiment of current submission is not restriction, and if desired, can be in parallel more than three element cell 1.
(the 3rd embodiment)
Now, describe battery and correlation technique thereof in detail with reference to figure 9-13 according to the utility model the 3rd embodiment.
Fig. 9 is the plane graph of the embodiment battery frame 7 of the current submission of explanation; Figure 10 is for being provided with the perspective view of the state of element cell 1 on the explanation framework 7; Figure 11 is the perspective view of battery in the explanation assembling process; Figure 12 is the perspective view of assembling back battery BA1; Figure 13 is the schematic diagram of the circuit structure of explanation battery BA1.Incidentally, in Figure 11,, omitted the electrode slice of element cell 1 for conductive gasket 50 and insulating washer 51 are shown easily.
The main distinction of first embodiment of the embodiment of current submission and above-mentioned proposition is, by conductive gasket 50 and insulating washer 51 element cell 1 is set itself in the shape and structure that first embodiment adopts, and be arranged on stacked unit cells 1 under the state on the framework 7 at fuel cell 1 in the version that the embodiment of current submission adopts, and other structures are identical.After this, emphasis is described these differences, and the part identical with first embodiment have identical Reference numeral, thereby omits or simplify and describe.
Promptly, the embodiment of current submission is similar to first embodiment, because outer radiator 2a is arranged on the outermost layer of stacked structure, but the structure difference is, framework 7 and internal layer radiator 2b, as shown in Figures 9 and 10, in stacked structure, make up, wherein internal layer radiator 2b is set for a plurality of each of piling up in the framework 7.And in the embodiment of current submission, in order to form series circuit in battery BA1, busbar 8 is installed on the stacked structure.
At first, describing framework 7.
＜framework 〉
As shown in Fig. 9 and 10, in the framework 7 of the embodiment of current submission, the one side embeds has conductive gasket 50 and opposite side embedding that insulating washer 51 is arranged.The thickness that conductive gasket 50 forms is less times greater than the thickness (thickness on the cell stacks direction) of framework 7, and less than the thickness (thickness on the cell stacks direction) of element cell 1.The thickness that insulating washer 51 forms also with conductive gasket 50 the same thickness greater than framework 7, and less than the thickness of element cell 1.
Framework 7 is formed with a plurality of localization parts 70, and the element cell 1 of associating is separately positioned in the assigned address on this localization part 70.Localization part 70 is formed by cut-off parts respectively, and the size of each is less than the profile of each element cell 1.Each localization part 70 opening is to certain area size, because when element cell 1 is arranged on the localization part 70, periphery that can grip unit battery 1 makes element cell 1 contact with another element cell 1 that is arranged on upper strata or bottom on the zone except that periphery simultaneously.Element cell 1 is arranged on the framework 7 by this way: electrode slice 10,12 is contacted with insulating washer 51 with conductive gasket 50.After finishing the location, the boring (hole) of conductive gasket 50 and insulating washer 51 respectively with the hole 13 of the negative plate 12 of the hole 11 of the positive plate 10 of element cell 1 and element cell 1 in line.
On framework 7, adjacent-cell battery 1 is arranged to positive plate 10 and negative plate 12 is oriented on the opposite location.As shown in Figure 10, element cell 1 is arranged to be arranged alternately in order in the front side as shown in figure 10 positive plate 10 and negative plate 12.
As shown in Figure 11, pile up a plurality of frameworks 7 by presser unit 40 and insulator pin 52 are set, a plurality of element cells 1 are arranged on each framework 7.Incidentally, by nut presser unit 40 and insulator pin 52 are fastened on the outer radiator 2a, this is also not shown, thereby keeps vertical.And according to the battery BA1 that finishes assembling, presser unit 40 fixedly is fixed between the outer radiator 2a, as shown in Figure 12, thereby makes outer radiator 2a apply power so that each element cell 1 is applied certain surface pressing on the direction closely.
When piling up framework 7, the electrode slice 10,12 of element cell 1 is arranged alternately on stacking direction.Pay close attention in the bottom of framework 7 one sides, wherein this is provided with electrode slice in proper order according to positive plate 10, negative plate 12, positive plate 10 and negative plate 12, and directly the upper strata above bottom has the electrode slice that is provided with according to negative plate 12, positive plate 10, negative plate 12 and positive plate 10 so another kind of orders in the same side.And, when piling up framework 7,, so as mentioned above, pile up framework 7 and make conductive gasket 50 and insulating washer 51 alternately be positioned on the stacking direction because conductive gasket 50 and insulating washer 51 are embedded in the framework 7.
On framework 7 a plurality of element cells 1 are arranged to array unceasingly, thereby pile up each framework 7, one is stacked on another, as mentioned above, the battery pack BA1 that the result obtains finishing wherein is provided with element cell 1 series connection on stacking direction.According to the embodiment of current submission, as shown in Figure 11 and 12, battery BA1 has four cell arrays, and each comprises the stacked body of element cell 1 and these unit, just, and series connected battery unit 80a, 80b, 80c, 80d.
More particularly, for battery unit 80a and 80c being connected and battery unit 80b and 80d connect towards the upper strata from bottom from the upper strata to the bottom, determine each element cell 1 electrode slice 10, the installation direction of 12 installation direction and conductive gasket 50 and insulating washer 51, and battery unit 80a, 80b, 80c and 80d series connection.For battery unit 80a, 80b, 80c and 80d connect in order, use busbar 8. Battery unit 80a, 80b pass through busbar 8 and connect at the bottom, and battery unit 80b, 80c connect in the superiors by busbar 8, and battery unit 80c, 80d pass through busbar 8 in the lowermost layer connection, as shown in Figure 11 and 12.
Therefore, a plurality of battery unit 80a that connect by busbar 8 are to 80d, element cell 1 whole series connection of battery BA1.This is connected electrode terminal 81,82 respectively with the negative plate 12 of the battery unit 80a the superiors and the positive plate 10 of the battery unit 80d the superiors, high voltage is provided.The illustrative circuitry structure that obtains that forms at inside battery shown in Figure 13.
As mentioned above, according to the 3rd embodiment, element cell 1 is arranged to array on framework 7, and piles up 7, one of this frameworks and be stacked on another.Here, conductive gasket 50 is embedded in the side of framework 7, and the opposite side of this framework 7 is embedded with insulating washer 51, therefore by put upside down framework 7 towards piling up framework 7, make packing ring 50,51 alternately be arranged on the stacking direction.Therefore, the circuit structure that this causes element cell 1 to be connected on stacking direction resembles embodiment 1,2 equally.
Incidentally, although structrual description has been given birth in the representative that has four element cell 1 arrays in conjunction with battery wherein on the framework 7 embodiment of current submission.But it is be not restricted to this application, and according to circumstances replaceable on same framework 7, having two or three or more than five element cell 1 arrays.
And, can be by insulator pin 52 settings voltage detection terminal 83 as shown in Figure 11.Voltage detection terminal 83 is separately positioned between conductive gasket 50 and the insulating washer 51, can detects the voltage of each element cell 1.Even after battery is installed on the automobile, also can grasp the performance of each element cell 1.
The battery that above-mentioned 1-3 in conjunction with the embodiments discusses has a plurality of advantages as described below.
In the structure that this battery adopts, conductive gasket 50 and insulating washer 51 are arranged alternately on certain direction, thereby element cell 1 is electrically connected along stacking direction to be piled up, and need not weld for electrical connection or seam, therefore can reduce work hours, the while can be easily and forms circuit reliably with interconnecting unit battery in battery.Especially, structure by the 3rd embodiment, because conductive gasket 50 and insulating washer 51 are combined in respectively in the framework 7, so only pile up the framework 7 that element cell thereon is arranged to array, the ability that realizes circuit just is provided, has simplified element cell 1 and linkage unit battery 1 reliably in this circuit.
And, can conductive gasket 50 and insulating washer 51 be set by insulator pin 52, thereby conductive gasket 50 and insulating washer 51 easily be installed at assembly process.
And, according to the structure of embodiment 1 and 3, though the electrode slice 10 of element cell 1 is set by insulator pin 52,12, but hole 11,13 the location of simplifying and carrying out these elements reliably is set, wherein the diameter in each hole 11,13 is substantially equal to the external diameter of each insulator pin 52.
And, according to the structure of second embodiment, insert insulator pin 52 by busbar 6 element cell 1 in parallel is directly connected, simplify and carry out reliably the location of these elements thus.
In addition, because 40 pairs of element cells 1 of presser unit have applied surface pressing, even element cell 1 through frequent charge and discharge cycles, also can make battery capacity and working life avoid being subjected to the negative interaction that is caused by the element cell 1 inner gas that produces.
In addition, by this battery, element cell 1 piles up and does not have the space, thereby make the necessary quantity of internal layer radiator 2b depend on the heat that distributes, do not need thus each element cell 1 is applied suitable surface pressing, realize being suitable for the miniaturization of automobile installation and having the ability of the battery of high-energy-density thereby provide.Therefore, battery has firm structure and does not have the space, thereby brings the robustness and the excellent anti-seismic performance of increase.
Incidentally, according to the structure of embodiment 1-3, thereby by using conductive gasket on stacking direction, to realize electrical connection in the whole unit battery, even part welding unit battery 1 also can.
(the 4th embodiment)
Next, with reference to battery and the method thereof of figure 14-27 detailed description according to the utility model the 4th embodiment.
Figure 14 is the perspective view of battery BA2 of the embodiment of current proposition; Figure 15 A is the perspective view of an element cell of this battery of explanation; Figure 15 B is the perspective view of another element cell of this battery of explanation; Figure 16 is the cross-sectional view along Figure 14 line C-C; Figure 17 is the cross-sectional view along Figure 14 line D-D.
The main distinction of the embodiment of current submission and above-mentioned first embodiment is that element cell 1` has different structures, and other structure is identical.After this, emphasis is described these differences, and the part identical with first embodiment have identical Reference numeral, thereby omits or simplify and describe.
Promptly, the radiator 2a that the battery of current submission embodiment comprises a plurality of element cell 1`, piles up with element cell 1`, 2b, be arranged between the element cell 1` and element cell 1` and radiator 2 between big friction plate 3, a plurality of element cell 1` stacked bodies are pressurizeed with the maintaining body 4 of integrated support on two surfaces along stacking direction.
After this, each part of battery BA2 will according to circumstances be described in detail with reference to other accompanying drawing.
＜element cell 〉
According to the embodiment of current submission, as shown in Figure 15 A and 15B, element cell 1` comprises two kinds of element cell 1a and element cell 1b.
Being sealed in the stacked laminated film is generating element, and the positive plate of this generating element and negative plate all be used as electrode and guide to outside the laminated film.Element cell 1a, 1b have two electrode slices such as positive plate 10`, and 14 and negative plate 12,16, it is respectively along stretching out perpendicular to the direction of stacking direction.
Element cell 1a has positive plate 10` and negative plate 12, one of them for example positive plate 10` be formed with two hole 11`.Negative plate 12 is formed with a hole 13.
As stacked unit cells 1a, during 1b, the hole 11` of element cell 1a is installed to the associated protrusion of element cell 1b and divides on 15.Be installed to along with positive plate 10` on the negative plate 14 of element cell 1b, as shown in Figure 16, the jut 15 of negative plate 14 stretches out from positive plate 10`.This makes element cell 1a, and 1b locatees during series connection mutually.
Meanwhile, make alignment pin 52 extend through packing ring, thereby make positive plate 16 location and firmly fixing of positive plate 12 and the element cell 1b of element cell 1a, as shown in Figure 17 by conductive gasket 50 or insulating washer 51 are clipped between other sheet 12,16.
Constitute by the conducting element that has interim insulator by making battery and battery, conductive gasket 50 forms the part of part, wherein conducting element is formed by conducting metal such as copper or aluminium, is electrically connected so that be arranged on the top and the electrode slice on the lower surface 16,12 of packing ring 50.Insulating washer 51 is formed by insulated metal such as pottery so that be arranged on the top and 16,12 mutually insulateds of the electrode slice on the lower surface of packing ring 50.Conductive gasket 50 and insulating washer 51 are used as partition with directly contact between the electrode slice 12,16 of avoiding adjacent-cell battery 1`.
For battery BA2, insulating washer 51 is interposed between the negative plate 12 that is placed on positive plate 16 tops of the positive plate 16 of an element cell 1b and another element cell 1a.This is based on this consideration, because element cell 1a is arranged on a row on the element cell 1b, the negative plate 14 of element cell 1b is fixed to one another mechanically to be connected and to be electrically connected with the positive plate 10` of element cell 1a.As shown in Figure 16, and if positive plate 16 and negative plate 12 electrical connections that are placed on it, this can cause short circuit.Meanwhile, conductive gasket 50 be interposed in the negative plate 12 of element cell 1a and the positive plate 16 of the element cell 1b that is placed on it between.
As implied above, according to the embodiment of current submission, be arranged alternately conductive gasket 50 and insulating washer 51, thereby for element cell 1a, 1b is at electrode slice 10`, the row who mechanically connects and be electrically connected on 14, electrode slice 12 in opposite side, 16 are electrically insulated from each other by insulating washer 51, therefore on the contrary, and for electrode slice 10`, 14 do not have the row of electrical connection, electrode slice 12,16 is electrically connected by conductive gasket 50, and element cell 1a and element cell 1b are connected on stacking direction.
By covering bar surface and alignment pin 52 carried out insulation processing with the resin-coating bar surface or with resin.With nut 53a, 53b is fastened on the alignment pin 52 at the top of alignment pin 52 and low side, and this makes the electrode slice 12,16 of element cell 1` be interposed between conductive gasket 50 and the insulating washer 51 fastenedly.Therefore, electrode slice 12,16 is electrically connected to each other in reliable mode or is insulated from each other.
Incidentally, can with first embodiment in the same, use nut 53a, 53b is fastening to be used for electrode terminal (not shown) that electric energy is drawn from battery.
＜radiator, big friction plate and maintenance structure 〉
Especially, radiator comprises two kinds of outer radiator 2a and internal layer radiator 2b, and itself and element cell 1` are stacked on the centre of battery, and any radiator is formed with and is used for the vent passages 20 that cooling agent such as air flow through.
Maintaining body 4 comprises the outer radiator 2a that is stacked on the outermost layer, be arranged on presser unit 40 between the outer radiator 2a, make presser unit 40 be installed in nut 41 on the outer radiator 2a, and acts on element cell 1` by the elastic force that the stretch coil spring (elastomer) 42 of presser unit 40 applies by outer radiator 2a and go up to form plus-pressure.
＜assembling process 〉
Now, for the battery BA2 of the current submission embodiment with said structure, carry out assembling process and describe.
Figure 18 is the flow chart of the basic order of the battery BA2 of the current submission embodiment of explanation assembling; Figure 19 is the decomposition diagram of the basic order of explanation explanation assembled battery BA2; And Figure 20 is the decomposition diagram of the explanation basic order of state assembled battery BA2 subsequently shown in Figure 19.Incidentally, the series of steps S1 that will suitably understand Figure 18 with reference to Figure 19 is to S6, and will suitably understand series of steps S7 to 17 with reference to Figure 20.
At first, as shown in Figure 18 and 19, big friction plate 3 is arranged on outer radiator 2a goes up (step S1)
Next, element cell 1b is arranged on the big friction plate 3 that is placed on the outer radiator 2a (step S2), and will appoint pin 52 to insert in the electrode slice 16 surely, therefore the conductive gasket 50 of nut 53b by being arranged on electrode slice 16 outsides securing dowel 52 temporarily, especially, the conductive gasket 100 by having dielectric film is to be provided with alignment pin (step S3).Incidentally, alignment pin 52 have be formed with screw thread spiral shell ridge two ends with fastening nut 53a, 53b.
Next, insulating washer 51 (step S4) is set and element cell 1a (step S5) is set on element cell 1b by alignment pin 52.
Next, the jut 15 of the negative pole 14 of element cell 1b is installed in the hole 11 of positive plate 10 of element cell 1a (step S6).This makes element cell 1a, and 1b joins together.
Next, big friction plate 3 (step S7) is set on element cell 1a.
Next, also as shown in Figure 20, the conductive gasket 100 that will have dielectric film by alignment pin 52 is arranged on the element cell 1a electrode slice 12 (step S8).
Here, repeat step S2 except step S3 to S8, this can pile up two element cell 1a of designated groups number, 1b (step S9).
Continuously, piling up two element cell 1a of designated groups number, behind the 1b, on big friction plate 3, internal layer radiator 2b (step S10) is being set.
Next, also big friction plate 3 is arranged on internal layer radiator 2b and goes up (step S11).
Here repeat once more except the step S2 of step S3 to S8 (when in a plurality of layers, internal layer radiator 2b being set except the step S2 of step S3 to S11), this can pile up two element cell 1a of designated groups number, 1b has biplate (step S12) in one group.
Therefore, at the element cell 1a that repeatedly stacking specifies number, on 1b and the internal layer radiator after, upper outer layer radiator 2a is arranged on the big friction plate 3 of the element cell 1a of the superiors (step S13).
Now, research element cell 1a, the electrical connection between the 1b.
Figure 21 has located the exemplary view of insulating washer 51 with the state of the conductive gasket 100 with dielectric film for explanation.And, in the drawings, omit radiator.
As shown in figure 21, stacked body has location insulating washer 51 and has the zone of the conductive gasket 100 of dielectric film 101, with at module units battery 1a, all electrode slices 12,16 is remained in the state of insulation fully.Promptly, insulating washer 51 is at electrode slice 10`, the one group of biplate element cell 1a that connects on 14 provides insulation between the electrode slice 12 and 16 of 1b, and the conductive gasket 100 with dielectric film 101 causes contacting the insulation between electrode slice 12 and 16 of other group element cell.
And, the structure of conductive gasket with conducting film is described.
Figure 22 A is the plane graph that an example of the conductive gasket with dielectric film is described, and Figure 22 B is the cross-sectional view along Figure 22 A line F-F.
As shown in Figure 22 A and 22B, have in the structure of conductive gasket 100A of dielectric film, the annular dielectric film 101 similar with conductive gasket 50 is connected with the conductive gasket 50 that is got by copper or aluminum.Here, the example of dielectric film 101 comprises resin molding, as polyethylene film and vinyl film, or cardboard.
Figure 22 C is the plane graph that another example of the conductive gasket with dielectric film is described; And Figure 22 D is the cross-sectional view along Figure 22 C line G-G.
Shown in Figure 22 C and 222D, have in the version that the conductive gasket 100B of dielectric film adopts, the ring-type dielectric film 101 shown in Figure 22 A and 22B has in addition at ring and picks up sheet (pickup tag) 102 from conductive gasket 50 outside radiation direction upper process.When dielectric film 101 is removed in hope, provide this sheet 102 that picks up to make to remove and pick up sheet 102 that this is to depend on making its simple needs of removing thus.
Figure 22 E is the plane graph that another example of the conductive gasket with dielectric film is described; Figure 22 F is the cross-sectional view along Figure 22 E line H-H.
As shown in Figure 22 E and 22F, have in the version that the conductive gasket 100C of dielectric film adopts, the dielectric film 101 shown in Figure 22 C and the 22D is formed with and picks up sheet, also is formed with otch 103 picking up on the relative position of sheet 102 in addition.When removing dielectric film 101 as required,, provide this otch 103 that near the zone of dielectric film 101 otch 103 is torn for easier removal is provided thus.When forming this otch 103, should be noted that near the zones conduction that does not make the otch 103, that is, the exposure ratio of conductive gasket 50 is increased.And otch 103 can replace with the hole, obtains similar effect.
Certainly, above-mentionedly pick up sheet, otch can mutually combine with various forms.Dielectric film can be formed with otch or hole, and does not pick up sheet, maybe can form porose and otch.Or additionally, otch and hole can be arranged in a plurality of positions.
Incidentally, at laminated components in the assembling of S14 such as element cell 1a, 1b and temporarily nut 53a is tightened to after the top of alignment pin 52, be arranged on presser unit 40 between the outer radiator 2a and clamp nut 41 has extended designated length up to the coil spring 42 of presser unit 40, thus fastening thus presser unit 40 (step S15).
Next, from above-mentioned conductive gasket 50, remove all dielectric films 101 (step S16).In this stage, because securing dowel 52 only, so can easily remove dielectric film 101.
At last, the nut 53a on alignment pin 52 both sides, 53b are fully fastening and tightened with fastening electrode slice 12,16 (step S17) in the end by given torque.This makes conductive gasket 50 and electrode slice 12 fully contact with 16, and it clamps the element cell 1a of conductive gasket 50 to connect all, 1b, thus the battery BA2 shown in Figure 14 is provided element.
The structure of embodiment by above-mentioned current submission, owing to dielectric film is being arranged on assembled battery under this condition on the conductive gasket by a plurality of element cell series connection, so in the total voltage of the element cell of assembly process series connection (if the voltage of an element cell equals 4 volts, total voltage is approximately 8 volts so) equal the voltage of the highest two element cells, obtain reliable electric capacity and the simple assembly working of carrying out.
The variant of＜conductive gasket 〉
After this, the further variant of conductive gasket of the embodiment of current submission is described.
Figure 23 A is the plane graph that an example of the conductive gasket with interim insulator is described; Figure 23 B is that it shows the state before securing dowel along the cross-sectional view of Figure 23 A line I-I; Figure 23 C is the cross-sectional view along Figure 23 A line I-I, and it shows another state before securing dowel.
As Figure 23 A to as shown in the 23C, conductive gasket 120 with interim insulator has dead ring 121 as insulator, the internal diameter I of dead ring 121 is slightly less than the external diameter O of conductive gasket 50, and along the direction between the electrode slice, thickness h 2 is slightly less than the thickness h 1 of conductive gasket 50.
Incidentally, dead ring internal diameter I is sized to make at securing dowel with owing to the fastening force that imposes on alignment pin in the state of dead ring before sliding on conductive gasket, certain frictional force is provided and dead ring can easily not dropped from conductive gasket.And the thickness h 2 of dead ring 121 is enough to can not make when securing dowel dead ring to protrude from conductive gasket 50 less than conductive gasket 50.And the raw material of dead ring 121 can comprise plastics or the pottery with insulation characterisitic.
Figure 24 A is the plane graph that another example of the conductive gasket with interim insulator is described; Figure 24 B is that it shows the state before fastening location along the cross-sectional view of Figure 24 A line J-J; Figure 24 C is the cross-sectional view along Figure 24 A line J-J, and it shows another state before fastening location.
As Figure 24 A to as shown in the 24C, conductive gasket 130 with interim insulator comprises ring-type conductive gasket 131, the outer annular shoulder of this ring-type conductive gasket 131 has bullet 132, and ring-type dead ring 135, has the conical supports 133 that keeps contacting with the cone of support body with bullet 131, have internal diameter, and protrude from conductive gasket 131 less than conductive gasket 131 external diameters.Here, dead ring 135 can be preferably made by frangible relatively material such as pottery or duroplasts.
Figure 25 A is the plane graph that another example of the conductive gasket with interim insulator is described; Figure 25 B is that it shows the state before fastening location along the cross-sectional view of Figure 25 A line K-K; Figure 25 C is the cross-sectional view along Figure 25 A line K-K, and it shows in fastening location another state subsequently.
To as shown in the 25C, the conductive gasket 140 with interim seal comprises the conductive gasket 140 that is formed with annular recess 142 and makes and be arranged on dead ring 145 in the groove 142 by elasticity as Figure 25 A.In normal condition, the thickness h 3 that dead ring 145 forms is greater than the degree of depth h4 of groove 142, and volume is less than the volume of groove 142.
As shown in Figure 25 B, under the state before alignment pin is fastening, the dead ring 145 that is made by this material protrudes from conductive gasket 141, so electrode slice 12 and 16 remains in the state of insulation.Meanwhile, as shown in Figure 25 C, when securing dowel, by the pressure of fastening generation dead ring 141 is broken, thereby make conductive gasket 141 between electrode slice 12 and 16, provide conduction.
Figure 26 illustrates another example of the conductive gasket with interim insulator and the securing dowel plane graph of state before is shown; And Figure 27 is after securing dowel, the view of the state of the conductive gasket with interim insulator shown in Figure 26.
As shown in Figure 26 and 27, have in the version that the conductive gasket 302 of interim insulator adopts, thereby it is overlapping with conductive gasket 300 to place elastic plate 301.Conductive gasket 300 has the surface, and elastic plate 301 is arranged on this surface, and this surface is formed with conductive prominence part 305.Meanwhile, elastic plate 301 has formed interim insulator, and this interim insulator is made by material with insulation characterisitic and elastomer, and wherein this elastomer comprises a kind of as synthetic rubber or silicon rubber in the rubbery system.
As shown in Figure 26, under the state before the securing dowel 52, by elastic plate 301,305 pairs of fragmentations of jut are inoperative, remain in the state of insulation so have the conductive gasket 302 of interim insulator.On the other hand, in nut 53 was fastened to state on the alignment pin 52 up and down, elastic plate 301 was pressed, and as shown in Figure 27, by insulation board the jut 305 that is formed on the conductive gasket 300 is broken, and conductive gasket 300 is contacted with electrode slice 16.
Therefore, in battery assembling, the element cell electric insulation that piles up and series connection is not set in all element cells, and in the end in the step nut 53 up and down during securing dowel 52 all element cells realize series connection.
Incidentally, by this structure, can realize following structure, when fastening force discharges after stage of securing dowel 52 up and down with nut 53, suitably select the elasticity of elastic plate 300 to make elastic plate return to original position once more, thereby hide jut, make the connection between a plurality of element cells that near the region insulation the jut piles up with cut-out.
And, according to conductive gasket 120,130 with interim insulator, 140,302, because securing dowel 52 automatically makes electrode slice 12 and 16 realize conduction state, and in above-mentioned battery assembling sequence, assembling sequence does not need to remove the step (step S16) of dielectric film.
Other forms of＜manufacture process 〉
Other form of the battery pack process of assembling that is used for current submission embodiment is described at last.
Fig. 8 is provided with the exemplary view of insulating washer and another example of the state of the conductive gasket with dielectric film for explanation.
Though in the battery manufacture process of above-mentioned main reference Figure 18, all conductive gaskets of use all comprise dielectric film, also can set a conductive gasket to a plurality of element cells of series connection.
That is, as shown in Figure 28, can provide such structure, to the element cell of specified quantity, just, eight blade unit batteries in the accompanying drawing use the conductive gasket 100 with dielectric film.The reason that conductive gasket 100 with dielectric film is used for a plurality of element cells is, it for voltage an element cell of 4 volts, the existing multi-disc series unit battery that is less than 10 provides and has been less than 40 volts voltage, thereby guarantee the stability of work, and the conductive gasket 100 that being used for of exist inserting as shown in the figure,, of eight blade unit batteries had dielectric film has obtained realizing the ability of this functional reliability.
By this way, inserting a conductive gasket 100 with dielectric film makes the element cell of series connection typically have voltage less than 40 volts, this voltage has been guaranteed the reliability of work and has been reduced the quantity of dielectric film, can reduce the man-hour of many removal dielectric films itself thus, removing dielectric film is conductive gasket 100 and other appearance that is had dielectric film by use.
The battery of top reference the 4th embodiment discussion has following dramatic benefit.
According to the battery of current proposition embodiment, owing to used conductive gasket 100,120 with interim insulator, 130,140, or 302, minimizing by the unwanted voltage that the element cell that connects produces with some and the mode manufacturing that is used for carrying out assembly working reliably so become to make.
And, because the conductive gasket 100 with interim insulator can allow easily to remove interim dielectric body device, so, be enough to need not increase and make man-hour by minimum work for assembly working.And owing to have the conductive gasket 120,130,140 of interim insulator, or 302 be effectively for automatic removal state of insulation, so do not increase the number in man-hour of assembly working.
And, if the element cell number of series connection provides approximately less than 40 volts output voltage, use conductive gasket to reduce so and remove the number in man-hour that dielectric film spends with dielectric film, wherein the sheet number of conductive gasket is less than the quantity of the element cell of series connection.
And, because big friction plate 3 is arranged between the element cell 1` and element cell 1 and radiator 2 between, so, between element cell, can not be subjected to displacement even existence imposes on each element cell 1` that piles up and the vibrations of radiator 2 yet.Therefore, even be applied to automobile, also can avoid each element cell 1` and radiator 2 by shaking the displacement that produces or dropping.
In addition, the result of vibrations does not produce displacement or drops, can avoid damaging the element cell 1 that is formed on serial or parallel connection ' on the battery electrode sheet.
In addition, owing to be not subjected to displacement, so do not need to increase maintenance structure 4 by being used to avoid displacement is pushed element cell 1` stacked body from the top to the bottom plus-pressure owing to the big friction plate that inserts.Therefore, element cell 1` does not need to be used for to have the skin and the element cell 1` that have increased intensity to the shelves strong pressure can form light weight, and the result is cell integrated to be alleviated.
And during stacked unit cells 1`, the use of big friction plate 3 is alternately piled up element cell 1` and big friction plate 3, thereby makes the easy battery of making.
And, because big friction plate 3 does not have caking property for element cell 1`, so when breaking down for one among the element cell 1`, can take out any one element cell 1` to replace.
And alignment pin 52 inserts because the electrode slice 12,16 of element cell 1` has boring 13,17, inserts alignment pin 52 by boring and can make element cell 1` location simply and reliably toward each other.
And the projection 15 that is formed on the electrode slice 14 is installed on the hole of another electrode slice 10, and element cell 1` is located toward each other simply and reliably.In addition, element cell 1` is electrically connected to each other in simple and reliable ground mode,, simplifies thereby make to install so the overlapping direction of element cell 1` can not make a mistake in piling operation owing to jut 15 is installed to.
And, because maintaining body 4 has pressurization function and refrigerating function, so when element cell 1` was applied suitable surface pressing, the heat that produces among the element cell 1` can be distributed.
In addition, use the presser unit 40 that is installed between the outer radiator 2a to make outer radiator 2a closer to each other, thereby can be combined in the battery inboard, battery is minimized element cell 1` pressurization and pressing mechanism.
And, owing to element cell 1` is stacked on the direction identical with the generating element stacking direction, so can obtain electric current with stable manner.
And because element cell 1` adopts the profile of platypelloid type battery, the thickness of battery can reduce.
Incidentally, although according to the embodiment of current submission, the negative plate 14 that the positive plate 10 of element cell 1a has hole 11 and element cell 1b has jut 15, and the embodiment of current submission is not limited to this structure.The electrode slice that has wherein formed hole and jut can have opposite polarity.In addition, electrode can be formed with sunk part and the hole 11 that replaces installing jut 15.
And, embodiment according to current submission, the electrode slice that stretches out from the side of element cell 1` is connected by the installation of jut 15 with hole 11, yet the opposite side of element cell 1` is electrically connected by insulating washer 51 and conductive gasket 50, and the embodiment of current submission is not limited to this structure.According to circumstances, the installation of the part that the both sides of element cell 1` can be by association or connect by insulating washer/conductive gasket.Or, can use ultrasonic bonding connection electrode sheet.
And, although embodiment according to current submission, shown the battery that only has to pile up in vertical direction, the embodiment of current submission is not limited to this ad hoc structure and a plurality of batteries of being formed by the stacked body of a plurality of element cells can be in parallel, thereby the battery pack of the electric energy output with further increase is provided.In this case, busbar can be installed between another of in the battery one and battery so that electrical connection to be provided.Busbar can be installed in and be fixed on the alignment pin 52 between nut 53 and the conductive gasket 50.
And, though described the embodiment of current submission with reference to exemplary configuration, be installed on the opposite side by the electrode slice on concaveconvex structure one side in this exemplary configuration, by using conductive gasket 50 and insulating washer 51, electrode slice on the both sides can one be stacked on another, thereby forms the separation stacked body of series-connected cell element cell.In this case, can use conductive gasket and the quantity of the separation stacked body of series unit battery is provided surpass 40 volts output voltage with dielectric film.
Incidentally, according to the above-mentioned current embodiment that mentions, though big friction plate 3 is used as the displacement holdout device, the embodiment of current submission is not determinate.The displacement holdout device can be formed by the viscous liquid that is coated on element cell or the radiator.Here, term " viscous liquid " is meant the material as carbamic acid family tree fat and rubber liquid.Use viscous liquid viscous liquid only to be coated on the case surface of element cell, thereby can make battery simply as the displacement holdout device.
In addition, can pass through the case surface of machining unit battery roughly, make the displacement holdout device form thick surface roughness.The method that increases the surface roughness of element cell case surface comprises the method for sandblasting and laser hammering method.Certainly, can be by using the polishing of sand paper mill.Use makes the case surface of element cell have the structure of thick roughness, makes only sequence stack of element cell, is in order to stop these element cell displacements thus.
And although big friction plate 3 is only formed by silicon rubber, the embodiment of current submission does not constitute limitation.This examples of material can comprise the substrate that is made by PET (polyethylene terephthalate), and it is provided with silicon rubber.Therefore, the hardness that provides substrate to improve big friction plate, thus be improved ability to work when on the element cell surface that these elements is arranged on radiator.
For this substrate that uses, substrate can be coated with the binding agent that is bonded on element cell or the radiator.In this case, the bare surface of beating friction plate 3 is bonded on element cell or the radiator 2, but does not bond on silicon rubber.This makes one, and to be stacked on element cell on another or element cell and radiator separated from one another.
This be incorporated into the patent application No.TOKUGAN2003-351739 that submitted in Japan on October 10th, 2003 and the whole contents of the patent application No.TOKUGAN2003-351733 that submits in Japan on October 10th, 2003 as a reference.
Though by some embodiment of reference the utility model the utility model is described above, the utility model is not limited to above-described embodiment.Those skilled in the art can make amendment and change according to instruction above-described embodiment.Limit scope of the present utility model with reference to following claim.
Claims (16)
1. battery, wherein, a plurality of element cells are stacked on the stacking direction, it is characterized in that, and this battery comprises:
A plurality of conducting elements with conductivity; And
A plurality of insulation components with electrical insulation characteristics, a plurality of conducting elements and a plurality of insulation component alternately are provided with on stacking direction, and a plurality of element cells have lead-out terminal respectively and are clipped in therebetween, and a plurality of thus element cells are electrically connected on stacking direction.
2. according to the battery of claim 1, wherein these a plurality of element cells are flat on the direction perpendicular to stacking direction.
3. according to the battery of claim 1, also be included in the insulator pin that stacking direction extends,
Wherein a plurality of conducting elements and a plurality of insulation component have the patchhole that can insert insulator pin, and a plurality of conducting element and a plurality of insulation component have alternately inserted insulator pin together with each lead-out terminal that is clipped in a plurality of element cells wherein by patchhole.
4. according to the battery of claim 3, wherein each lead-out terminal of these a plurality of element cells is included in the upwardly extending electrode slice perpendicular to the side of stacking direction, and this insulator pin is inserted in inserting in the hole of this electrode slice.
5. according to the battery of claim 4, wherein these a plurality of element cells pile up by this way, make that in a plurality of element cells the electrode slice of an element cell is opposite with electrode slice at another adjacent with this element cell on stacking direction element cell on polarity
And wherein these a plurality of conducting elements and these a plurality of insulation components alternately are provided with on stacking direction, and each electrode slice of these a plurality of element cells is clipped in therebetween, and these a plurality of element cells in series are electrically connected thus.
6. according to the battery of claim 3, wherein these a plurality of element cells comprise a plurality of paired element cells, and several each right paired element cells are by element parallel connection in parallel, and insulator pin inserts the patchhole of this parallel connection element.
7. according to the battery of claim 1, also comprise a plurality of frame elements, by this frame element, a plurality of element cells are placed and are held in place,
Wherein a plurality of frame elements pile up on stacking direction, thereby can pile up this a plurality of element cells, make these a plurality of conducting elements and these a plurality of insulation components be combined in the frame element.
8. according to the battery of claim 1, also comprise the voltage detection terminal that is connected with these a plurality of insulation components with these a plurality of conducting elements.
9. according to the battery of claim 1, also be included in the pressing mechanism that on the stacking direction these a plurality of element cells is pressurizeed.
10. according to the battery of claim 1, comprise that also a plurality of heats that receive heat and distribute this heat from these a plurality of element cells receive and heat dissipation element, these a plurality of heats receive and heat dissipation element piles up on stacking direction.
11. according to the battery of claim 1, also comprise these a plurality of element cells of restriction, in case at a plurality of limiting elements of the direction top offset vertical with stacking direction, these a plurality of limiting elements pile up on stacking direction.
12. according to the battery of claim 1, wherein these a plurality of conducting elements and these a plurality of insulation components comprise gasket element.
13., wherein comprise detachable dielectric film with the corresponding gasket element of these a plurality of conducting elements according to the battery of claim 12.
14., wherein comprise the insulation component that can move freely with the corresponding gasket element of these a plurality of conducting elements according to the battery of claim 12.
15., wherein comprise that with the corresponding gasket element of these a plurality of conducting elements at least one is lacerable insulation component according to the battery of claim 12.
16., wherein comprise deformable insulation component with the corresponding gasket element of these a plurality of conducting elements according to the battery of claim 12.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP351739/2003 | 2003-10-10 | ||
| JP351733/2003 | 2003-10-10 | ||
| JP2003351733A JP3894182B2 (en) | 2003-10-10 | 2003-10-10 | Assembled battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2773915Y true CN2773915Y (en) | 2006-04-19 |
Family
ID=34542888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004201223564U Expired - Fee Related CN2773915Y (en) | 2003-10-10 | 2004-10-10 | Battery |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3894182B2 (en) |
| CN (1) | CN2773915Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102308412A (en) * | 2009-01-19 | 2012-01-04 | 锂电池科技有限公司 | Electrochemical energy storage device |
| CN102356482A (en) * | 2009-03-16 | 2012-02-15 | 锂电池科技有限公司 | Electric energy memory apparatus with flat-type cells, spacing elements and contact devices |
| CN102473879A (en) * | 2009-08-28 | 2012-05-23 | 日产自动车株式会社 | Assembled battery and assembled battery manufacturing method |
| CN102725879A (en) * | 2010-01-19 | 2012-10-10 | 锂电池科技有限公司 | Electrical energy unit and spacer |
| CN102859756A (en) * | 2010-04-28 | 2013-01-02 | 米其林集团总公司 | Battery unit for an electric or hybrid vehicle |
| CN102881846A (en) * | 2011-07-13 | 2013-01-16 | 北汽福田汽车股份有限公司 | Battery module |
| CN103401012A (en) * | 2013-08-13 | 2013-11-20 | 深圳市优尔备科技有限公司 | Laminated mobile power supply |
| CN105655532A (en) * | 2014-11-10 | 2016-06-08 | 宁德时代新能源科技股份有限公司 | Battery pack and stacking method thereof |
| CN107851758A (en) * | 2016-02-05 | 2018-03-27 | 株式会社Lg化学 | Battery module and the battery pack including the battery module |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4848702B2 (en) * | 2004-10-26 | 2011-12-28 | 日産自動車株式会社 | Assembled battery |
| US7659029B2 (en) | 2004-10-26 | 2010-02-09 | Nissan Motor Co., Ltd. | Battery module with insulating plates nipping electrode tabs |
| KR100876458B1 (en) * | 2004-12-24 | 2008-12-29 | 주식회사 엘지화학 | Battery cartridge of novel structure and open battery module containing it |
| JP4940718B2 (en) * | 2005-07-04 | 2012-05-30 | 日産自動車株式会社 | Battery module and battery module assembly method |
| JP5176312B2 (en) * | 2006-12-07 | 2013-04-03 | 日産自動車株式会社 | Battery pack and manufacturing method thereof |
| JP5098318B2 (en) * | 2006-12-11 | 2012-12-12 | 日産自動車株式会社 | Battery module |
| DE102009006117A1 (en) * | 2009-01-26 | 2010-07-29 | Li-Tec Battery Gmbh | Electrochemical energy storage cell |
| DE102009052480A1 (en) * | 2009-11-09 | 2011-05-12 | Li-Tec Battery Gmbh | Electric power cell and electric power unit |
| JP2011134541A (en) * | 2009-12-24 | 2011-07-07 | Nifco Inc | Connection structure |
| JP5479947B2 (en) * | 2010-03-01 | 2014-04-23 | 大和製罐株式会社 | Battery case |
| JP5750097B2 (en) * | 2010-03-01 | 2015-07-15 | 株式会社ピューズ | Thin battery module and assembled battery using the same |
| JP5625706B2 (en) * | 2010-10-01 | 2014-11-19 | 住友ベークライト株式会社 | Manufacturing method of laminate |
| KR101181303B1 (en) | 2012-01-20 | 2012-09-11 | 주식회사 비주 | Lithium ion battery for press device |
| JP6045299B2 (en) * | 2012-10-26 | 2016-12-14 | 住友重機械工業株式会社 | Storage module and work machine equipped with storage module |
| JP6303729B2 (en) * | 2014-03-31 | 2018-04-04 | 日本電気株式会社 | Battery pack and battery pack manufacturing method |
| JP2017147179A (en) * | 2016-02-19 | 2017-08-24 | 日立オートモティブシステムズ株式会社 | Electricity storage module |
| KR102395228B1 (en) * | 2018-10-10 | 2022-05-04 | 주식회사 엘지에너지솔루션 | Mounting method of busbar frame |
| CN113036299A (en) * | 2019-12-09 | 2021-06-25 | 东莞新能安科技有限公司 | Battery module |
| DE102021200367A1 (en) * | 2021-01-15 | 2022-07-21 | Volkswagen Aktiengesellschaft | Current collector system for a battery cell |
-
2003
- 2003-10-10 JP JP2003351733A patent/JP3894182B2/en not_active Expired - Fee Related
-
2004
- 2004-10-10 CN CNU2004201223564U patent/CN2773915Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102308412A (en) * | 2009-01-19 | 2012-01-04 | 锂电池科技有限公司 | Electrochemical energy storage device |
| CN102308412B (en) * | 2009-01-19 | 2014-04-16 | 锂电池科技有限公司 | Electrochemical energy storage device |
| CN102356482A (en) * | 2009-03-16 | 2012-02-15 | 锂电池科技有限公司 | Electric energy memory apparatus with flat-type cells, spacing elements and contact devices |
| CN102473879A (en) * | 2009-08-28 | 2012-05-23 | 日产自动车株式会社 | Assembled battery and assembled battery manufacturing method |
| CN102725879A (en) * | 2010-01-19 | 2012-10-10 | 锂电池科技有限公司 | Electrical energy unit and spacer |
| CN102859756A (en) * | 2010-04-28 | 2013-01-02 | 米其林集团总公司 | Battery unit for an electric or hybrid vehicle |
| CN102859756B (en) * | 2010-04-28 | 2015-08-19 | 米其林集团总公司 | For battery unit that is electronic or motor vehicle driven by mixed power |
| CN102881846A (en) * | 2011-07-13 | 2013-01-16 | 北汽福田汽车股份有限公司 | Battery module |
| CN103401012A (en) * | 2013-08-13 | 2013-11-20 | 深圳市优尔备科技有限公司 | Laminated mobile power supply |
| CN105655532A (en) * | 2014-11-10 | 2016-06-08 | 宁德时代新能源科技股份有限公司 | Battery pack and stacking method thereof |
| CN107851758A (en) * | 2016-02-05 | 2018-03-27 | 株式会社Lg化学 | Battery module and the battery pack including the battery module |
| CN107851758B (en) * | 2016-02-05 | 2020-11-10 | 株式会社Lg化学 | Battery module and battery pack including the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3894182B2 (en) | 2007-03-14 |
| JP2005116433A (en) | 2005-04-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2773915Y (en) | Battery | |
| CN1619858A (en) | Battery and method of making the same | |
| CN2415463Y (en) | Low internal resistance collection structure of storage and discharge device | |
| CN2785147Y (en) | Battery set | |
| CN1845360A (en) | Assembled battery and battery | |
| CN1198356C (en) | Nonaqueous electrolyt battery and production method therefor | |
| CN100345364C (en) | Power supply unit and power supply system having the same | |
| CN1613163A (en) | Fuel battery and electric device | |
| CN1263127C (en) | Mounting structure of solar battery assembly array, its method and electric energy generating system | |
| CN1670986A (en) | Accumulator device | |
| CN1169232C (en) | Solar battery module arranging method and solar battery module array | |
| CN100337345C (en) | Battery | |
| CN1324255C (en) | Gasket | |
| CN1148813C (en) | Battery assembly, battery carrying device, electric power supply equipment and electronic equipment | |
| CN1241271C (en) | Power generation system and device | |
| CN1181708C (en) | Electroluminescent equipment and display equipment | |
| CN1288771C (en) | Polymer electrolytic fuel battery | |
| CN1767229A (en) | Assembled battery | |
| CN1841592A (en) | Multilayer capacitor | |
| CN1314122C (en) | Nonvolatile semiconductor memory device | |
| CN1134041A (en) | Unit cell for sealed alkaline storage battery | |
| CN1880844A (en) | Lamp | |
| CN101040417A (en) | Control apparatus and control method for voltage conversion apparatus | |
| CN1427429A (en) | Stacked capacitor | |
| CN1776939A (en) | Battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |