CN105378973A - Method for manufacturing a connection of a degassing device to at least on battery cell, and battery system - Google Patents
Method for manufacturing a connection of a degassing device to at least on battery cell, and battery system Download PDFInfo
- Publication number
- CN105378973A CN105378973A CN201480040131.0A CN201480040131A CN105378973A CN 105378973 A CN105378973 A CN 105378973A CN 201480040131 A CN201480040131 A CN 201480040131A CN 105378973 A CN105378973 A CN 105378973A
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- Prior art keywords
- battery list
- degasser
- pipe joint
- list pond
- pond
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/308—Detachable arrangements, e.g. detachable vent plugs or plug systems
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- 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
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The present invention relates to a method for manufacturing a connection of a degassing device (6) to at least one battery cell (1), wherein: the cell housing (2) of the at least one battery cell (1) is embodied in such a way that the cell housing (2) has a connector (4) surrounding a safety valve (3) of the battery cell; the degassing device (6) is embodied in such a way that the degassing device (6) has an opening (8) respectively corresponding to the connector (4) of the at least one battery cell (1); the degassing device (6) is arranged in such a way that the connector (4) of the at least one battery cell (1) projects in each case through the correspondingly formed opening (8) in the degassing device (6); and in that the free end (5) of the connector (4) of the at least one battery cell (1) and/or the edge (9) surrounding the opening (8) are shaped in such a way that the shaped free end (5') and the edge (9) surrounding the opening (8) engage one behind the other. In addition, the invention relates to a battery system having an inventive connection of a degassing device (6) to at least one battery cell (1).
Description
Technical field
The present invention relates to a kind of for setting up method degasser being connected to the syndeton at least one battery list pond, at least one coverlet pond, battery list pond housing wherein said surround and have for the protection of described battery list pond to prevent the safety valve of the overvoltage be harmful to.Especially, the present invention relates to a kind of for setting up method degasser being connected to the syndeton on multiple battery list pond.
In addition, the present invention relates to and a kind ofly have at least one battery list pond and be connected to the battery system of the degasser at least one battery list pond described, at least one coverlet pond, battery list pond housing wherein said surrounds and has safety valve.
Background technology
Battery list pond, the lithium ion battery that e.g. particularly can recharge have very large meaning as accumulator, such as, to be provided for the electric energy of the operation of hybrid electric vehicle, plug-in hybrid electric vehicle or electric motor car.Described battery list pond is usually electrically connected into battery module at this and is the part of battery system.
Especially, the so violent fever phenomenon in the battery list pond of being correlated with may be there is due to interference, the overcharge in such as battery list pond, the deep discharge in battery list pond, the short circuit in battery list pond or higher ambient temperature, make the electrolyte in this battery list pond change gaseous state into, within the shorter time, the pressure of inside, described battery list pond raises tempestuously thus.In order to prevent the explosion in relevant battery list pond, it is known that be equipped with safety valve to battery list pond, this safety valve occur opening when pressing in predetermined single pond and can make the electrolyte that is vaporized and may be other the catabolite effusion of formation.Such safety valve especially can be configured to be loaded into the safety plate in valve opening, and this safety plate bursts when there is the fracture pressure defined and opens described valve opening thus.The lithium ion battery with such safety valve such as obtains open from open source literature DE10328862B4.
If the safety valve in battery list pond is opened due to such pressure increase, the electrolyte be so vaporized just may be overflowed with higher velocity pressure impact type as aerosol to other catabolite together from relevant battery list pond.The aerosol of effusion especially may comprise some parts, such as carbon monoxide (CO), hydrogen (H at this
2), hydrogen fluoride (HF) and/or other part, described part with up to 10 bar pressure and sometimes overflow from described safety valve higher than the temperature of 500 DEG C.At this, the aerosol amount of such as 200 liters may be discharged.In order to make not spread uncontrollably from the aerosol of battery list pond release, and the aerosol discharged by battery list pond when being used in vehicle in battery list pond especially can not arrive in passenger carriage, it is known that derive discharged aerosol by means of degas system in check situation.Disclose a kind of lid with pneumatic admission room as degas system in open source literature DE102011002631A1 for this reason.
At this, debatable, such degasser is connected to the syndeton on the battery list pond of battery system.On the one hand, As time goes on single pond housing in described battery list pond is out of shape due to the chemical process of carrying out in described battery list pond, thus described syndeton stand machinery load and the sealing of described syndeton be difficult to be guaranteed.In addition, described degasser is connected to syndeton on described battery list pond to be loaded consumingly due to the gas that discharged by battery list pond when degassed or aerocolloidal high temperature and the compression shock that occurs when degassed.Therefore, up to now in order to degasser being connected to enduringly hermetically at least one battery list pond, higher contact force must be applied and expensive seal is set.
Summary of the invention
Before this background, task of the present invention is, improves the syndeton be connected to by degasser at least one battery list pond especially as follows, described syndeton is simplified and however also advantageously provides the syndeton extremely sealed.
In order to solve described task; advise a kind of for setting up method degasser being connected to the syndeton at least one battery list pond, at least one coverlet pond, battery list pond housing wherein said surround and have for the protection of described battery list pond to prevent the safety valve of the overvoltage be harmful to.At this, in a method step, so construct single pond housing at least one battery list pond described, make described single pond housing have pipe joint that surrounded by described safety valve, sleeve-shaped, this pipe joint has end freely.In another method step, so the described degasser of structure, makes described degasser correspondingly consistently have opening with the pipe joint at least one battery list pond described, wherein said opening surround by the edge.In another method step, so arrange described degasser, make opening that the pipe joint at least one battery list pond described correspondingly passes described degasser, that consistently construct.In another method step, the end freely so making the pipe joint at least one battery list pond described and/or the edge deformation surrounded by opening, the end freely making distortion and the edge surrounded by described opening are fitted together to (hintergreifen) from rear portion each other.Preferably, make the end freely of described pipe joint and/or be so out of shape at the edge that described opening surrounds, the edge that described in making, end is parallel to described opening freely carries out orientation, and wherein said pipe joint is through described opening.Especially, according to a kind of favourable design regulation, the edge freely of described pipe joint is outwards out of shape.
By the distortion of the end freely of described pipe joint, advantageously prevent described degasser from unclamping from the pipe joint at least one battery list pond described.Especially specify, be connected to by degasser on multiple battery list pond, wherein each battery list pond has a pipe joint arranged around the corresponding safety valve in described battery list pond.Described degasser is advantageously so formed, and makes it have the as many opening with pipe joint.Especially, described degasser is so formed, thus described degasser can so be arranged on described battery list pond when usually arranging battery list pond, when especially multiple battery list pond being connected into a battery module, make the pipe joint in battery list pond correspondingly through degasser, the opening that consistently constructs.Described degasser is advantageously so formed, make its have one substantially close, for receive by one or more battery list pond discharge gas or aerocolloidal space.Especially specify, described degasser multi-piece type ground structure, the Part II formed, described two parts can be arranged in top of one another the Part I that wherein said degasser is formed with preferably including half shelly and half shelly.As battery list pond, be provided with especially can recharge lithium ion battery, be preferably configured to prismatic lithium ion battery.
According to method according to the present invention, especially so degasser can be connected at least one battery list pond, described degasser can be moved along the orientation of the pipe joint at least one battery list pond described.This movement is limited by single pond housing at least one battery list pond described on the one hand at this, and on the other hand by least one battery list pond described, the end freely of the distortion of pipe joint limits.Because special provision, described degasser is arranged at least one battery list pond described, so when at least one battery list pond described is normally run, that is when not carrying out at least one battery list pond described degassed, on single pond housing that described degasser is placed at least one battery list pond described or on the bed course arranged separately.Between the pipe joint and the opening of described degasser at least one battery list pond described, be completely hermeticly connected to this and not must need when normally running, wherein said pipe joint passes the opening of described degasser.
Or rather, the present invention is based on following understanding: in general degasser is connected to syndeton at least one battery list pond must be only just sealing when one or more battery list pond degassed.That is, the syndeton be connected to by described degasser at least one battery list pond or no longer must must not be configured to airtight structure before degassed event and/or after degassed event terminates.Conclusive, degasser is connected to syndeton at least one battery list pond when at least one battery list pond is degassed and be especially sealing in the process that at least one battery list pond described is degassed.
Therefore, design of the present invention is, with higher speed from the safety valve opened in battery list pond compression shock formula ground escaping gas or higher pressure that is aerocolloidal, that be associated with degassed event for setting up the sealing described degasser being connected to the syndeton at least one battery list pond.Therefore advantageously specify, when one or more battery list pond is degassed, described degasser is moved by the pipe joint with higher velocity pressure impact type ground escaping gas or aerosol along described battery list pond, and when described degasser being preferably placed in the upper end at least one battery list pond described, described degasser moves upward.Then advantageous by the end freely of the distortion of described pipe joint and/or the edge of the described distortion that the opening of degasser is surrounded to stop the motion of described degasser.By between the end freely of the distortion of described pipe joint and described degasser, connection between the end freely and the described edge surrounded by the opening of degasser of this connection of setting up (Schluss) distortion of described pipe joint in other words comes advantageously to be connected to by described degasser on described battery list pond airtightly.
Even if because the compression shock usually occurred with supersonic speed along with the degassed generation of beginning in one or more battery list pond and after generation is degassed several minutes described degassing pressure be also greater than 2 bar, so described degasser at least keeps being connected to hermetically at least one battery list pond described in the scope in this time interval, discharged gas or aerosol can not be overflowed, but to be channeled in described degasser by described safety valve and described pipe joint by degassed battery list pond in a controlled manner and preferably to be discharged via discharge line by this degasser.
In order to improve the sealing described degasser being connected to the syndeton at least one battery list pond further, especially specify, the end freely of the distortion of the pipe joint on the edge surrounded by described opening and/or at least one battery list pond described arranges potted component in the mode of the opening surrounding described degasser.Described potted component advantageously so forms and so arranges, thus described degasser is also connected at least one battery list pond described hermetically when at least one battery list pond described is normally run.
According to a kind of favourable design regulation of method according to the present invention, in the mode of surrounding described safety valve, described pipe joint is welded on single pond housing at least one battery list pond described, make described single pond housing have one described safety valve is surrounded, the pipe joint of sleeve-shaped, this pipe joint has end freely.Especially specify, described single pond housing has single pond case lid, and wherein said pipe joint is welded in single pond case lid of described single pond housing.Especially specify, at least one pipe joint described is made up of aluminium or aluminium alloy.According to a kind of favourable design variant scheme prescribes of described method, described single pond housing has single pond case lid, and wherein said single pond case lid and described pipe joint are especially formed integratedly by means of casting method.
In addition especially specify, described degasser is so formed, make described degasser correspondingly consistently have same pipe joint or the projection being configured to sleeve-shaped with the pipe joint at least one battery list pond described, wherein this projection has one with the opening at edge surrounding described opening.The edge surrounding opening of this projection of described degasser especially can by the free end of described projection, distortion directed inwards forms.Described degasser, the opening that surrounded by edge is preferably just so big, make the pipe joint in battery list pond with very little gap through described opening, that is, opening section is equivalent to the cross section of pipe joint substantially.
According to the design variant scheme prescribes that the another kind of method according to the present invention is favourable, in order to multiple battery list pond is connected on degasser at least one number of number corresponding to battery list pond with the plate-wherein said pipe joint of multiple pipe joint-be so arranged on single pond housing in described battery list pond, make each single pond housing in the housing of described single pond have one the safety valve in corresponding battery list pond is surrounded, the pipe joint of sleeve-shaped, this pipe joint has end freely.Especially specify, described plate is configured to perforated metal plate, and preferable configuration is the perforated metal plate be made up of stainless steel.
According to described method, this kind of favourable improvement project according to design variant scheme of the present invention, between the single pond housing in described battery list pond and at least one plate with multiple pipe joint described, arrange at least one potted component.Described potted component is preferably configured as the structure of resistance to variations in temperature at this.Improve when described potted component is advantageously used on the single pond housing described plate being connected to described battery list pond on the one hand and seal, and be advantageously used in addition and the difference in height in described battery list pond is compensated, because described battery list pond does not always have identical height and may deform in time due to the chemical process of carrying out in described battery list pond.Described potted component is preferably permanently connected with described single pond housing.Described plate is preferably permanently connected with described potted component.According to a kind of favourable design regulation, described potted component has multiple continuous print (durchg ngig) rubber layer of opening, especially rubber blanket, and wherein said rubber layer is arranged on single pond housing in described battery list pond in the mode utilizing described opening and surround described safety valve.Particularly preferably, described rubber layer is the rubber perforated non-woven fabric (Gummilochvlies) of resistance to variations in temperature.
According to the particularly advantageous design regulation of the another kind of method according to the present invention, described degasser is two parts ground structure at least, the Part I of wherein said degasser has the opening that will arrange around the pipe joint at least one battery list pond described and opens at least in part, enables the opening that must arrange around to the pipe joint in a few battery list pond freely close.The Part I of described degasser is so arranged at this, makes opening that the pipe joint at least one battery list pond described correspondingly passes the Part I of described degasser, that consistently construct.Then in another method step, the free end of the pipe joint at least one battery list pond described is so outwards out of shape, make that the end freely of described distortion is preferably like this is fitted together to the edge surrounded by described opening from rear portion, the edge making the end freely of described distortion be parallel to described opening comes directed, and wherein said pipe joint is through described opening.Because the Part I of described degasser is opened at least in part, so the ground of may freely of the pipe joint at least one battery list pond described can be freely close.Then after the Leading Edge Deformation freely of described pipe joint, at least one Part II of described degasser is connected with the Part I of described degasser, makes the degasser formed by least two parts be closed substantially.Especially, the Part I of described degasser and the Part II of described degasser can be configured to half shelly.The Part I of described degasser especially can be connected by means of method for laser welding hermetically with the Part II of described degasser.
According to the particularly preferred design of another kind of method according to the present invention, between the free end of the distortion of the pipe joint at least one battery list pond described and the described edge surrounded by the opening of degasser, arrange potted component.Especially, described potted component can be arranged on the edge that surrounded by described opening or on the end freely of the distortion of described pipe joint.The advantageously self-packing potted component of described potted component is particularly preferably self-packing sealing ring.Described potted component advantageously so designs, make its preferably be under the temperature between 600 DEG C and 700 DEG C, there is temperature stability and thus in violent heating time the syndeton be connected to by described degasser at least one battery list pond described is sealed.
In addition, in order to solve the task that beginning is mentioned, advise a kind ofly there is at least one battery list pond and be connected to the battery system of the degasser at least one battery list pond described, at least one coverlet pond, battery list pond housing wherein said surrounds and has safety valve, wherein said degasser by means of according to of the present invention, be connected at least one battery list pond described for the method setting up the syndeton be connected at least one battery list pond by degasser.
Described battery system is advantageously configured to as the operation of hybrid electric vehicle, plug-in hybrid electric vehicle or electric motor car provides the accumulator of electric energy.
At least one battery list pond of described battery system has the pipe joint of sleeve-shaped, and this pipe joint is arranged on single pond housing in described battery list pond in the mode of being surrounded by the safety valve at least one battery list pond described.Described degasser correspondingly has an opening when consistent with the pipe joint at least one battery list pond described, especially when consistent with the pipe joint in a large amount of battery list pond, and the mode that pipe joint surrounds is arranged on single pond housing in corresponding battery list pond to utilize opening by wherein said degasser.The end freely of described pipe joint and/or be so out of shape at this at the edge that described opening surrounds, makes described degasser cannot unclamp from described battery list pond or its pipe joint.Especially specify, the edge freely of described pipe joint be outwards out of shape, preferred outwards crimping, and by described the edge that the opening of degasser surrounds being out of shape inwards, preferred crimping inwards.Advantageously between the end freely of the distortion of pipe joint and the edge surrounded by the opening surrounding pipe joint, arrange potted component.Described potted component at least also seals the syndeton between described degasser and at least one battery list pond described when at least one battery list pond described is normally run in the process of degassed event, preferably.Along described pipe joint, described degasser is advantageously connected at least one battery list pond described movingly, wherein when described degasser moves away from described battery list pond, namely especially when one or more battery list pond is degassed, described potted component is gathered and sealing is improved thus further.
Accompanying drawing explanation
In conjunction with embodiment illustrated in the accompanying drawings, other favourable details of the present invention, characteristic sum design details are explained in detail.At this illustrate:
Fig. 1 show in a schematic the vertical view in the battery list pond according to battery system of the present invention;
Fig. 2 show in a schematic the end view in battery list pond shown in Figure 1;
Fig. 3 is to show intercepting part degasser being arranged into the situation on battery list pond as the schematic diagram of cutaway view;
Fig. 4 is to show the intercepting part of the deformation of the end freely of the pipe joint in battery list pond as the schematic diagram of cutaway view;
Fig. 5 is to show the intercepting part of the embodiment for battery system according to the present invention as the schematic diagram of cutaway view;
Fig. 6 is using show when single pond is degassed battery system as the schematic diagram of cutaway view, shown in Figure 5 intercepting part;
Fig. 7 show in a schematic the end view in multiple battery list pond, and single pond housing in described battery list pond has the pipe joint surrounded by described safety valve;
Fig. 8 show in a schematic the vertical view of the plate with multiple pipe joint, and described plate is configured to be arranged on multiple battery list pond;
Fig. 9 is to show another intercepting part of the embodiment for battery system according to the present invention as the schematic diagram of cutaway view; And
Figure 10 is to show another intercepting part of the embodiment for battery system according to the present invention as the schematic diagram of cutaway view.
Embodiment
Degasser 6, the method for syndeton that is connected at least one battery list pond 1 are explained in detail for setting up by composition graphs 1 to Fig. 6.At this, Fig. 1 shows a kind of for battery list pond 1, the embodiment of lithium ion battery that especially can recharge with vertical view, coverlet pond, described battery list pond housing 2 surrounded.Described battery list pond 1 end has safety valve 3 thereon, this safety valve exceed housing 2 inside, described single pond, predetermined pressure time open and especially can make the gas that formed in the inside in described battery list pond 1 or aerosol effusion thus.Especially, described safety valve 3 can be configured to be loaded into the safety plate in valve opening, and this safety plate bursts when there is predetermined pressure.In a method step of method according to the present invention, the pipe joint 4 of sleeve-shaped is arranged on single pond housing in described battery list pond 1 in the mode of surrounding described safety valve 3, and method for optimizing is: be welded to by described pipe joint 4 on described single pond housing 2.Described pipe joint 4 has circular cross section in the embodiment illustrated in figure 1 at this.Described pipe joint 4 is preferably made up of aluminium.The end view in described battery list pond 1 is shown in Figure 2.The pipe joint 4 in described battery list pond 1 is so arranged on described single pond housing 2, makes to flow through described pipe joint 4 by described safety valve 3 escaping gas or aerosol.
Schematically show in figure 3: described degasser 6 being connected under the background at least one battery list pond, how the Part I of degasser 6 is arranged on battery list pond 1.For this reason, Part I so in structure the first embodiment described, degasser 6, makes it when consistent with the pipe joint 4 in battery list pond 1, correspondingly have the projection 7 of a tubulose.The projection 7 of this tubulose has an opening 8 at this, this opening by around edge 9 surround.This edge 9, in this interior curve towards the projection 7 of described tubulose, makes described opening 8 can receive described pipe joint 4 when not having larger gap.The Part I of described degasser 6 is then as illustrated in Figure 3 to utilize described opening 8 to be arranged on described battery list pond 1 in the mode of surrounding described pipe joint 4.The part illustrated of described degasser 6 is upwards opened in the described embodiment, makes the projection 7 of described tubulose can be freely close from top.Instrument can be inserted in this Part I of described degasser 6 thus, to make the end freely 5 of described pipe joint 4 outwards be out of shape.
Situation about to be inserted into by the instrument 11 with taper working head in the Part I of described degasser 6 is schematically shown in the diagram at this.Make the end freely 5 so outwards distortion of described pipe joint 4 at this by means of described instrument 11, make the end 5 ' freely of the distortion of described pipe joint 4 be fitted together to the edge 9 surrounded by described opening 8 from rear portion.The end 5 ' freely of the distortion of described pipe joint 4 is arranged essentially parallel at this ground, edge 9 orientation surrounded by described opening 8.By the distortion of the end freely 5 of described pipe joint 4, the Part I of described degasser 6 no longer can be made to unclamp from described pipe joint 4.
Advantageously, before end freely 5 distortion of the pipe joint 4 in described battery list pond 1, potted component 12 is arranged on the end freely 5 of the edge 9 and/or described pipe joint 4 surrounded by described opening 8.Schematically illustrate in Figure 5 and be arranged in described potted component 12 between the end 5 ' freely of the distortion of pipe joint 4 and the edge 9 surrounded by opening 8.Especially specify, described potted component 12 is self-packing sealing rings.When described battery list pond 1 is degassed, be advantageously sealed shut from described pipe joint 4 to the transition part of described degasser 6 by described potted component 12.
Carried out as explained above being out of shape in the end freely 5 of the described pipe joint 4 in all battery list ponds 1 for battery system to such an extent as to correspondingly the end freely 5 of pipe joint 4 and edge 9 that opening 8 is surrounded each other from after rear portion is chimeric, the Part I of described degasser 6 can be closed by means of at least one Part II, and method for optimizing is: preferably the Part II of described degasser 6 and Part I are welded by means of method of laser welding.Then set up the syndeton be connected to by described degasser 6 on multiple battery list pond 1 completely, this point can realize safety and subsequently controllably by the gas that discharge by associated batteries list pond or aerosol discharge when battery list pond 1 is degassed.
Schematically show the situation that aerosol 10 discharges from battery list pond 1 in figure 6.Described aerosol 10 is overflowed by the safety valve 3 ' opened at this from battery list pond 1, and is flow in described degasser 6 by the pipe joint 4 be arranged on single pond housing 2 in battery list pond 1.Described degasser 6 is a closed system at this in figure 6, and that is described degasser 6 is not upwards opened.As already mentioned, at least one Part II of described degasser 6 has been arranged in hermetically on the Part I of described degasser 6 for this reason.Because described aerosol 10 with higher velocity pressure impact type pass through described in the safety valve 3 ' opened overflow from described battery list pond 1, so under the effect of described pressure described degasser 6 by upwardly, potted component 12 between the end 5 ' freely of the distortion being arranged in pipe joint 4 and the edge 9 surrounded by opening 8 is crushed, and the end 5 ' freely of the distortion of described pipe joint 4 and the edge 9 surrounded by opening 8 are almost directly resisted against top of one another, and the connection of described degasser 6 with the sealing in described battery list pond 1 is provided when there is degassed event thus.By to be fitted together to from rear portion with the edge 9 that described opening 8 is surrounded described pipe joint 4, this mode in end freely 5 ' of distortion comes advantageously effectively to prevent described degasser 6 from getting loose from described pipe joint 4.
Composition graphs 7 and Fig. 8 exemplarily explain, how to arrange pipe joint 4 according to a kind of favourable enforcement flexible program of method according to the present invention to multiple battery list pond 1.For this reason, first as shown in Figure 7 by as described in battery list pond 1 arrange abreast.As explained in composition graphs 1 and Fig. 2, described battery list pond 1 end has correspondingly had safety valve 3 thereon.Then heat-staple rubber blanket 14 such as arranged by bonding and be fixed on the battery list pond 1 arranged abreast.This rubber blanket 14 has opening (not illustrating clearly in the figure 7) at this, and the opening of wherein said rubber blanket 14 surrounds the safety valve 3 in described battery list pond 1.Be fixed on by the steel plate 13 be made up of stainless steel on described rubber blanket 14, wherein said steel plate 13 has multiple pipe joint 4.So described steel plate 13 is fixed on described rubber blanket at this, described pipe joint 4 is correspondingly arranged in above the safety valve 3 in described battery list pond 1.Described rubber blanket 14 advantageously seals the transition part between described battery list pond 1 and described steel plate 13.In addition, described rubber blanket 14 advantageously compensates the difference in height 15 between each battery list pond 1.For this reason, described rubber blanket 14 is advantageously configured to the structure that can be out of shape.If described battery list pond 1 has difference in height 15 as shown in Figure 7, so be arranged in rubber blanket 14 between battery list pond 1 and steel plate 13 to be just so out of shape, described difference in height 15 be compensated and the pipe joint 4 of described steel plate 13 is closely resisted against on the safety valve 3 in described battery list pond 1.
Fig. 8 shows the vertical view of a kind of possible design of the steel plate 13 with multiple pipe joint 4.Shown steel plate 13 is especially configured to be arranged at this and is connected on the battery list pond of a battery module, wherein divides two rows to arrange six battery list ponds respectively abreast.
Fig. 9 shows another kind of distortion with the end freely 5 of pipe joint 4 and surrounds the relevant design variant scheme of the distortion at edge 9 of opening 8 of tubular protrusion 7 of degasser 6.In such an embodiment, the distortion of the end freely 5 of pipe joint 4 and the distortion at described edge 9 also cause following result: the end freely 5 of described distortion and the edge 9 of described distortion are chimeric from rear portion each other, thus prevent described degasser 6 from getting loose from described pipe joint 4.The end 5 ' freely of the edge 9 surround described opening 8 or the distortion of described pipe joint 4 can have on this undeformed surface about described pipe joint 4 angle be between 0 ° and 180 ° in principle, thus can realize chimeric from rear portion.Preferred described angle has the numerical value be between 30 ° and 150 °, because which thereby enhance the stability of described connection and advantageously prevent described degasser 6 from getting loose from described pipe joint 4 in the mode be improved further.After deforming, the end 5 ' freely of the distortion of described pipe joint 4 and the edge 9 of described distortion are preferably substantially directed in parallel with each other.In a kind of favourable design variant scheme as shown in Figure 9, the end freely 5 of described pipe joint 4 also advantageously first can be made to be out of shape, to be then inserted in the projection 7 of the tubulose of degasser 6.Then the projection 7 of described tubulose end freely or the edge 9 that described opening 8 surrounds just so is out of shape, the end freely 5 ' of the distortion of described pipe joint 4 and the edge 9 of described distortion are preferably so fitted together to from rear portion each other, make the edge 9 of described distortion with being arranged essentially parallel to the end 5 ' freely of the distortion of described pipe joint 4 orientation.Then described projection 7 no longer can get loose from described pipe joint 4.Advantageously, in this design variant scheme, can the described degasser 6 of single-piece ground structure.That is, in this design, described degasser 6 is different from the situation that composition graphs 4 is explained, especially can form when not having Part I, described Part I can provide the entrance of the end freely 5 towards described pipe joint 4 after being arranged on described pipe joint 4.
Figure 10 illustrates the another kind of embodiment for battery system according to the present invention.Arrange multiple battery list pond 1 here abreast.Described degasser 6 has Part I 6 ' and Part II 6 ' ', wherein said Part I 6 ' is upwards opened.Only by described Part II 6 ' ' with the connection of described Part I 6 ', especially by welding the degasser 6 being formed and substantially close.Schematically show weld seam 16 in Fig. 10." substantially close " and mean at this: described degasser 6 can have the opening (not illustrating in Fig. 10) for connecting discharge line and/or drain hose, but is configured to airtight structure in other side.
In order to described degasser 6 being arranged on described battery list pond 1, in embodiment illustrated in fig. 10, first by described degasser 6, the Part I 6 ' with the opening 8 consistently constructed with the pipe joint 4 of described storage battery 1 is placed on single pond housing 2 in described battery list pond 1.Substantially so design the size of described opening 8 at this, make pipe joint 4 just through described opening 8.After the Part I 6 ' of described degasser 6 being arranged on described battery list pond 1, correspondingly as in conjunction with embodiment shown in Figure 4 explained be out of shape to make the end freely 5 of pipe joint 4 preferably by the mode of outside crimping when utilizing instrument.Shown in Figure 10 by a dotted line at this, the end 5 ' freely of the distortion of the pipe joint 4 and how edge 9 that the corresponding opening 8 of degasser 6 surrounds is fitted together to from rear portion each other.Then the Part I 6 ' of described degasser 6 advantageously no longer can unclamp from described battery list pond 1 due to the end 5 ' freely of the distortion of described pipe joint 4.In order to improve sealing, correspondingly the edge 9 that the opening 8 of degasser 6 is surrounded and pipe joint 4 distortion arrange potted component 12 between end 5 ' freely, especially heat-staple rubber seal ring.Immediately after this just by the Part II 6 ' of described degasser 6 ' couple together with the Part I 6 ' of described degasser.
If have the degassed situation in single pond according to there is or battery list pond 1 in battery system that is of the present invention, that degasser 6 is connected to the syndeton on described battery list pond 1, so described degasser 6 is just by flowing into gas in described degasser 6 via pipe joint 4 or aerosol promotes with higher velocity pressure impact type, and wherein said degasser 6 is remained on by the end freely 5 ' of the distortion of described pipe joint 4 on the edge 9 that surrounded by opening 8.At this by the connection that freely end 5 ' between produce sealing of described potted component 12 in the distortion of described edge 9 and described pipe joint 4, thus within the time that single pond is degassed, at least realize described degasser 6 to be connected to hermetically on described battery list pond 1.
Illustrated in the accompanying drawings and the embodiment explained in conjunction with these accompanying drawings is not for making an explanation to the present invention, and restricted for purposes of the invention.
Claims (8)
1. for setting up method degasser (6) being connected to the syndeton at least one battery list pond (1); at least one battery list pond (1) coverlet pond housing (2) wherein said surround and have for the protection of described battery list pond (1) to prevent the safety valve (3) of the overvoltage be harmful to; it is characterized in that
Single pond housing (2) in-structure like this at least one battery list pond (1) described, make described single pond housing (2) have pipe joint (4) that surrounded by described safety valve (3), sleeve-shaped, this pipe joint has end (5) freely;
-so described the degasser of structure (6), make described degasser (6) correspondingly consistently have opening (8) with the pipe joint (4) at least one battery list pond (1) described, wherein this opening (8) is surrounded by edge (9);
-so arrange described degasser (6), make opening (8) that the pipe joint (4) at least one battery list pond (1) described correspondingly passes described degasser (6), that consistently construct; And
-the edge (9) that makes the end freely (5) of the pipe joint (4) at least one battery list pond (1) described and/or surround described opening (8) is so out of shape, thus the end freely (5 ') of distortion and the edge (9) that surrounds described opening (8) are fitted together to from rear portion each other.
2. in accordance with the method for claim 1, it is characterized in that, in the mode of surrounding described safety valve (3), described pipe joint (4) is welded on single pond housing (2) at least one battery list pond (1) described, make described single pond housing (2) have one described safety valve is surrounded, the pipe joint (4) of sleeve-shaped, this pipe joint then has end (5) freely.
3. in accordance with the method for claim 1, it is characterized in that, in order to multiple battery list pond (1) is connected on degasser (6), at least one is had the number of pipe joint (4) of the plate (13) of multiple pipe joint (4)-wherein and be equivalent to the number in battery list pond (1)-be so arranged on single pond housing (2) of described battery list pond (1), make each single pond housing in described single pond housing (2) have one the safety valve (3) of corresponding battery list pond (1) surrounded, the pipe joint (4) of sleeve-shaped, described pipe joint has end (5) freely.
4. in accordance with the method for claim 3, it is characterized in that, between the plate (13) in single pond housing (2) of described battery list pond (1) and at least one with multiple pipe joint (4), arrange at least one potted component (14).
5. in accordance with the method for claim 4, it is characterized in that, described potted component (14) is the rubber layer with multiple continuous print opening, and wherein said rubber layer (12) is arranged on single pond housing (2) of described battery list pond (1) in the mode utilizing described opening and surround described safety valve (3).
6. by method in any one of the preceding claims wherein, it is characterized in that, described degasser (6) is two parts ground structure at least, the Part I (6 ') of wherein said degasser (6) has the opening (8) will arranged around the pipe joint (4) at least one battery list pond (1) described, and the Part I (6 ') of described degasser (6) is opened at least in part, make the opening (8) must arranged around to the pipe joint (4) of a few battery list pond (1) can be freely close, the Part I (6 ') of wherein said degasser (6) is so arranged, make the pipe joint (4) at least one battery list pond (1) described through the Part I (6 ') of described degasser (6), the opening (8) consistently constructed, then end freely (5) the so outwards distortion of the pipe joint (4) at least one battery list pond (1) described is made, the end freely (5 ') be out of shape is made to be fitted together to the edge (9) surrounded by described opening (8) from rear portion, and then at least one Part II (6 ' ') of described degasser (6) is connected with the Part I (6 ') of described degasser (6), the degasser (6) formed by least two parts is made to be closed substantially.
7. by method in any one of the preceding claims wherein, it is characterized in that, between the end freely (5 ') of the distortion of the pipe joint (4) at least one battery list pond (1) described and the edge (9) surrounded by the opening (8) of described degasser (6), arrange potted component (12).
8. there is at least one battery list pond (1) and be connected to the battery system of the degasser (6) at least one battery list pond (1) described, at least one battery list pond (1) coverlet pond housing (2) wherein said surround and there is safety valve (3), it is characterized in that, described degasser (6) is by means of being connected to according to the method according to any one of claim 1 to 7 at least one battery list pond (1) described.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013213776.1 | 2013-07-15 | ||
| DE102013213776.1A DE102013213776A1 (en) | 2013-07-15 | 2013-07-15 | Method for producing a connection of a degassing device to at least one battery cell and battery system |
| PCT/EP2014/063210 WO2015007463A1 (en) | 2013-07-15 | 2014-06-24 | Method for manufacturing a connection of a degassing device to at least on battery cell, and battery system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105378973A true CN105378973A (en) | 2016-03-02 |
| CN105378973B CN105378973B (en) | 2018-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480040131.0A Active CN105378973B (en) | 2013-07-15 | 2014-06-24 | For establishing the method and battery system of the connection structure being connected to degasser at least one battery list pond |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN105378973B (en) |
| DE (1) | DE102013213776A1 (en) |
| WO (1) | WO2015007463A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11289767B2 (en) | 2016-12-22 | 2022-03-29 | Cps Technology Holdings Llc | Valve assembly for a battery cover |
| US11936032B2 (en) | 2017-06-09 | 2024-03-19 | Cps Technology Holdings Llc | Absorbent glass mat battery |
| MX2019014765A (en) | 2017-06-09 | 2020-07-22 | Cps Tech Holdings Llc | Lead-acid battery. |
| DE102021208346A1 (en) | 2021-08-02 | 2023-02-02 | Volkswagen Aktiengesellschaft | Accumulator for a motor vehicle and motor vehicle with accumulator |
| DE102023100562B3 (en) | 2023-01-12 | 2024-02-01 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | High-voltage battery with a sealing element arranged in a degassing opening |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1091431A2 (en) * | 1999-10-08 | 2001-04-11 | Matsushita Electric Industrial Co., Ltd. | Gas discharging device for battery pack |
| JP2005100840A (en) * | 2003-09-25 | 2005-04-14 | Denso Corp | Secondary battery and its manufacturing method |
| EP2352186A1 (en) * | 2009-07-17 | 2011-08-03 | Panasonic Corporation | Battery module and battery pack using the same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5047412B2 (en) * | 2000-04-28 | 2012-10-10 | パナソニック株式会社 | Assembled battery |
| DE10328862B4 (en) | 2003-06-26 | 2006-11-16 | Dilo Trading Ag | Lithium battery with overcharge protection |
| KR101380029B1 (en) * | 2006-10-13 | 2014-04-02 | 파나소닉 주식회사 | Battery pack, battery-mounted device and connection structure for battery pack |
| DE102008007669A1 (en) * | 2008-02-06 | 2009-08-13 | Robert Bosch Gmbh | Battery with degassing device |
| DE102011002631A1 (en) | 2011-01-13 | 2012-07-19 | Sb Limotive Company Ltd. | Battery cell module, method for producing a battery cell module and battery and motor vehicle |
-
2013
- 2013-07-15 DE DE102013213776.1A patent/DE102013213776A1/en active Pending
-
2014
- 2014-06-24 CN CN201480040131.0A patent/CN105378973B/en active Active
- 2014-06-24 WO PCT/EP2014/063210 patent/WO2015007463A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1091431A2 (en) * | 1999-10-08 | 2001-04-11 | Matsushita Electric Industrial Co., Ltd. | Gas discharging device for battery pack |
| JP2005100840A (en) * | 2003-09-25 | 2005-04-14 | Denso Corp | Secondary battery and its manufacturing method |
| EP2352186A1 (en) * | 2009-07-17 | 2011-08-03 | Panasonic Corporation | Battery module and battery pack using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102013213776A1 (en) | 2015-01-15 |
| WO2015007463A1 (en) | 2015-01-22 |
| CN105378973B (en) | 2018-05-08 |
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