CN208835203U - Lithium cell and intelligent battery - Google Patents
Lithium cell and intelligent battery Download PDFInfo
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- CN208835203U CN208835203U CN201821624003.2U CN201821624003U CN208835203U CN 208835203 U CN208835203 U CN 208835203U CN 201821624003 U CN201821624003 U CN 201821624003U CN 208835203 U CN208835203 U CN 208835203U
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- support plate
- battery core
- core component
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The disclosure provides a kind of lithium cell and intelligent battery.Lithium cell includes: plate-like support plate；Battery core component, battery core component are wound on the supporting plate, are coated on support plate in battery core component.Battery core component includes at least one cathode, at least one anode, and can be by the spaced diaphragm of positive electrode and negative electrode.Shell, shell have an accommodating chamber, for accommodating support plate and battery core component, the shell cementing connection of at least part at least part and cathode of anode respectively.And electrolyte, electrolyte are filled in the space in battery core component and/or between shell and battery core component.Wherein, support plate is used to support battery core component, and battery core component can be adhered to two apparent surfaces of support plate, so that battery core component and support plate are capable of forming a not relatively-movable entirety.Support plate provides effective support for battery core component, keeps the inside tensile force of battery core component and bonding form stable, the structural stability of battery core component good.
Description
Technical field
The disclosure belongs to battery technology field, is related to a kind of lithium cell and intelligent battery.
Background technique
In traditional lithium cell technology, the lithium cell in polymer lithium metal battery uses laminated type structure, lithium cell
A lithium battery is constituted under the clamping of aluminium alloy sheet, lithium cell is by balanced chucking power.Therefore, the polymer lithium of laminated type
During cycle charge-discharge, lithium metal uniform deposition comes out metal battery, generates without will lead to dendrite, the safety of battery core
It can be high.
And the lithium cell in winding-type lithium metal battery passes through winding method machine-shaping, lithium cell is by multilayer flexible
Film-like material is wound.In the related art, lithium cell is encased in rectangular shell in winding-structure, wherein lithium cell
Two apparent surfaces up and down be superimposed and keep stress equalization.And the two sides of lithium cell are bent camber, two sides can not obtain
Cause to effective support loosely organized, correspondingly, the whole stress of lithium cell is not balanced enough.Therefore, winding-type lithium metal battery
During cycle charge-discharge, lithium cell has lithium metal precipitation, is easy to cause battery core that safety accident occurs.
Although some traditional technologies are precipitated to solve the problems, such as that lithium cell has lithium metal, increase using in lithium cell
Add support construction, to prevent the deformation of winding-type battery core, but inventors have found that still not can effectively solve lithium cell even if doing so
Have the problem of lithium metal is precipitated.
Break for example, Chinese patent CN20190465U discloses one kind and can prevent from generating at battery inner ring pole piece curved corner
It splits and the rectangular coiling type lithium battery of disrepair phenomenon occurs in diaphragm.Wherein rectangular coiling type lithium battery include negative electrode tab, diaphragm and
Battery made of positive plate is successively stacked and wound, the battery middle part are set in the volume pin hole there are pin hole is rolled up
There is the gasket of the non-reversible deformation with acid and alkali-resistance, insulation.Inventors have found that the lithium battery of the patented technology is in use state
When, for example, lithium cell can still be possible to that the problem of lithium metal is precipitated occurs under shaking bigger service condition.
Chinese patent CN1018343317A is disclosed in core strueture disclosed in a kind of coiled lithium battery cell, battery core
Inside battery can, by conducting connecting part, it is connect respectively with the leading-out terminal of battery can anode and cathode.The battery core is main
Including core outside a battery inner core and a battery, the outer core of battery stacks gradually placement by positive plate, diaphragm, negative plate, and rolls up
It is coiled into vortex-like, is wrapped on the battery inner core.Inventors have found that the lithium battery of the patented technology is in use state, example
Such as, under shaking bigger service condition, lithium cell can still be possible to that the problem of lithium metal is precipitated occurs.
And pass through the long-term observation and experiment of inventor, lithium cell technology disclosed in above-mentioned document still cannot solve completely
Certainly lithium cell has lithium metal that the problem of forming lithium dendrite arm is precipitated in charge and discharge process.And the generation of lithium dendrite arm easily lead to it is winding-type
Battery occur high temperature even explode etc. accidents, seriously affect the security performance of battery.
Utility model content
In view of this, the disclosure provides a kind of lithium cell and intelligent battery.
Specifically, the disclosure is achieved by the following technical solution:
According to the first aspect of the embodiments of the present disclosure, a kind of lithium cell is provided, comprising:
Plate-like support plate；
Battery core component, the battery core component make the support plate be coated on the battery core in the support plate
In component, the battery core component includes at least one cathode, at least one anode, and can be by the positive electrode and negative electrode interval
The diaphragm of setting, the support plate are at least partly bonded with the diaphragm；
Shell, the shell has an accommodating chamber, for accommodating the support plate and the battery core component, the shell
Respectively with the cementing connection of at least part of at least part and the cathode of the anode；And
Electrolyte, the electrolyte are filled in the battery core component and/or between the shell and the battery core component
Space；
Wherein, the support plate is used to support the battery core component, and two apparent surfaces of the support plate are attached at institute
Battery core component is stated, the battery core component is enable to be adhered to two apparent surfaces of the support plate, thus the battery core component
A not relatively-movable entirety is capable of forming with the support plate.
Optionally, the battery core component winds and is tensioned to two apparent surfaces of the support plate；Or, the battery core group
Part coiling and molding is simultaneously formed with a flat long hole, and the support plate is inserted into the flat long hole.
Optionally, the pressure that the side of the support plate can bear is P, 2kgf/cm2≤P≤10kgf/cm2, and it is described
Support plate keeps dimensionally stable under this pressure conditions.
Optionally, the thickness of the support plate is less than or equal to 3 millimeters.
Optionally, the roughness range of the support plate surface is 3~10 microns.
Optionally, the surface of the support plate is coated with subcoat, and the subcoat is for the cementing connection branch
The contact portion of fagging outer surface and the battery core component.
Optionally, the subcoat with a thickness of 1~5 micron.
Optionally, the subcoat includes following at least one material: polyvinylidene fluoride, poly-methyl methacrylate
Ester, butadiene-styrene rubber.
Optionally, the basic coating application is in the whole region of two apparent surfaces of the support plate, or coating
In the predeterminable area of the support plate.
Optionally, the support plate is made of rigid material.
Optionally, the support plate is made of acid-alkali-corrosive-resisting material.
Optionally, the support plate is made of metal material or nonmetallic materials.
Optionally, the width of the support plate and the width of the battery core component match.
Optionally, the junction of two apparent surfaces is set as curved surface, and the battery core component is tensioned to the curved surface simultaneously
It is bent along the curved surface.
Optionally, the curved surface is arc-shaped curved surface, side of the arc-shaped curved surface to the central area far from the support plate
To gradually tilting.
Optionally, the inner surface of the battery core component is coated with bonding coat.
Optionally, the bonding coat includes following at least one material: polyvinylidene fluoride, poly-methyl methacrylate
Ester, butadiene-styrene rubber, sodium carboxymethylcellulose.
Optionally, the support plate is bonded with the innermost layer of the battery core component, and the innermost layer of the battery core component is institute
State diaphragm.
Optionally, the width of the diaphragm is greater than or equal to the width of the anode and the cathode.
Optionally, the diaphragm include basement membrane, the first coating coated on the basement membrane both side surface and be coated on institute
The second coating outside first coating is stated, the first coating is used to control the flowing of electric current, and the second coating is used for cementing company
Connect the surface being bonded with the second coating.
Optionally, the first coating includes following at least one material: magnesia, aluminium oxide, zirconium oxide, magnesia,
Zeolite, titanium carbide.
Optionally, the thickness of the first coating is set as 2~3 microns.
Optionally, the second coating includes following at least one material: polyvinylidene fluoride, poly-methyl methacrylate
Ester, butadiene-styrene rubber, sodium carboxymethylcellulose.
Optionally, the surface of the support plate is coated with subcoat, and the material of the second coating and the basis apply
The material of layer is identical.
Optionally, the second coating thickness is set as 1~2 micron.
Optionally, the thickness of the diaphragm is set as b, and the surface of the support plate is equipped with lug boss, the height of the lug boss
Degree is set as b1, wherein b1 < b.
Optionally, the anode is equipped with an at least anode ear, and the anode ear is convexly equipped in the side of the battery core component；Institute
Cathode is stated equipped with an at least negative electrode lug, the negative electrode lug is convexly equipped in the side of the battery core component；Wherein, it is described at least one just
Tab and at least one negative electrode lug intert to outside the shell.
Optionally, the cathode includes lithium metal or lithium metal compounds.
Optionally, the cathode is the copper foil that lithium metal film or lithium metal compounds are adhered in surface.
It is optionally, described that just extremely surface is adhered to comprising elemental sulfur, cobalt acid lithium, LiMn2O4, LiFePO4, nickel cobalt manganese at least
A kind of aluminium foil of material.
Optionally, the shell includes following at least one: aluminum plastic film, steel shell, aluminum hull.
Optionally, the electrolyte includes following at least one: carbonate-based solvent, gel comprising lithium hexafluoro phosphate
Electrolyte.
According to the second aspect of an embodiment of the present disclosure, a kind of intelligent battery is provided, comprising:
Battery case is equipped with accommodating chamber；
Set on the positive terminal and negative terminal of the battery case, the positive terminal and negative terminal are used for and outside
Device electrical connection；
At least one lithium cell as described above, is housed in the accommodating chamber；And
Control assembly is mounted in the accommodating chamber,
Wherein, the control assembly is electrically connected with the positive terminal, the negative terminal and the lithium cell, is used
It is managed in the state to the lithium cell, the lithium cell is charged by the positive terminal, the negative terminal
Or electric discharge.
Optionally, the battery case is set as square structure.
Optionally, the battery case includes following at least one: insulated plastic material shell, steel shell, aluminum hull.
Optionally, the control assembly includes the control panel being installed in the battery case and the place for being installed on control panel
Device is managed, the control panel is electrically connected with the positive terminal, the negative terminal and the lithium cell, and the processor is used
It is managed in the state to the lithium cell.
Optionally, the control assembly further includes the detecting element for being installed on the control panel, and the detecting element is used for
Detect the gas parameter in lithium cell and/or accommodation space.
The disclosure provide embodiment disclosed in technical solution can have it is following the utility model has the advantages that
Battery core component is adhered to support plate and constitutes an entirety, and the shape stability of battery core component is good.Battery core component volume
It is around in support plate and is adhered in support plate, support plate provides effective support for battery core component, keeps the inside of battery core component
Clamp force and bonding form stable, the structural stability of battery core component are good.
Detailed description of the invention
Fig. 1 is the cross section structure that a kind of battery core component shown in one exemplary embodiment of the disclosure is wound in supporting plate structure
Schematic diagram.
Fig. 2 is that the section that battery core component shown in FIG. 1 is wound in shown in some exemplary embodiments of supporting plate structure is tied
Structure schematic diagram.
Fig. 2 a is that positive electrode and negative electrode are separated equipped with two diaphragms and be wound in supporting plate structure by battery core component shown in FIG. 1
Cross section structure schematic diagram.
Fig. 2 b is that positive electrode and negative electrode are separated equipped with a diaphragm and be wound in supporting plate structure by battery core component shown in FIG. 1
Cross section structure schematic diagram.
Fig. 2 c is the cross section structure schematic diagram that battery core component shown in FIG. 1 is wound in supporting plate structure.
Fig. 3 is the longitudinal cross-section structure that a kind of lithium cell of supporting plate structure is wound in comprising battery core component shown in Fig. 2
Schematic diagram.
Fig. 4 is a kind of cross section structure schematic diagram for support plate that lithium cell shown in Fig. 3 includes.
Fig. 5 is a kind of cross section structure schematic diagram for support plate equipped with curved surface that lithium cell shown in Fig. 3 includes.
Fig. 6 is a kind of partial enlargement structural representation in diaphragm section that lithium cell shown in Fig. 3 includes.
Fig. 7 is a kind of structural schematic diagram of intelligent battery comprising lithium cell shown in Fig. 3.
Appended drawing reference: battery core component 10；Anode 11；Cathode 12；Diaphragm 13；Basement membrane 131；First coating 132；Second coating
133；Support plate 20；Side 21；Main surface 22；Curved surface 23；Subcoat 24；Anode ear 30；Negative electrode lug 40；Shell 50；Anode
Terminal 60；Negative terminal 70；Battery case 80；Control assembly 90.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all implementations consistent with this disclosure.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the disclosure.
It is only to be not intended to be limiting the disclosure merely for for the purpose of describing particular embodiments in the term that the disclosure uses.
The "an" of the singular used in disclosure and the accompanying claims book, " described " and "the" are also intended to including majority
Form, unless the context clearly indicates other meaning.It is also understood that term "and/or" used herein refers to and wraps
It may be combined containing one or more associated any or all of project listed.
The embodiment of the present disclosure discloses the manufacturing method of a kind of battery core, battery and battery core.The battery core includes battery core component, uses
Support plate in support battery core component, shell and electrolyte for accommodating battery core component and support plate.Battery core component and branch
Fagging can form a not relatively-movable entirety in a manner of bonding, buckle or clamping.
In some embodiments, the battery core component of the battery core winds, is tensioned and adheres to the part of the surface for being formed in support plate,
To which battery core component and the support plate are capable of forming a not relatively-movable entirety.
In some embodiments, the battery core component coiling and molding of the battery core and a hole is formed, support plate is inserted into the hole
In, battery core component can be adhered to the part of the surface of the support plate, so that battery core component and support plate are capable of forming one not
Relatively-movable entirety.
In some embodiments, the battery core component of the battery core is wound in support plate, and the portion that battery core component winds and is superimposed
Position is adhesively joined into a not relatively-movable entirety.
Below by taking lithium cell as an example, in conjunction with the attached drawing in the embodiment of the present disclosure, to the technical solution in the embodiment of the present disclosure
It being clearly and completely described, it is clear that described embodiment is only a part of this disclosure embodiment, rather than all
Embodiment.Based on the embodiment in the disclosure, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained belongs to the range of embodiment of the present disclosure protection.
With reference to the accompanying drawing, the manufacturing method of the lithium cell of the embodiment of the present disclosure, intelligent battery and lithium cell is carried out detailed
It describes in detail bright.In the absence of conflict, the feature in following embodiment and embodiment can be combined with each other.
As shown in Figure 1, in one embodiment, lithium cell includes plate-like support plate 20, battery core component 10.Fig. 1's
On the basis of, as shown in Fig. 2, battery core component 10 includes at least one cathode 12, at least one anode 11, and can be by anode 11
With the spaced diaphragm 13 of cathode 12, support plate 20 is at least partly bonded with diaphragm 13.It is understood that Fig. 2 shows
Anode 11 and the position of cathode 12 can be interchanged.Battery core component 10 makes support plate 20 be coated on electricity in support plate 20
In core assembly 10.
In some embodiments, (a), (b), the innermost layer of battery core component 10 can be diaphragm 13 referring to fig. 2, wherein branch
Fagging 13 is at least partly bonded with diaphragm 20.The main function of diaphragm 13 is to separate anode 11 and cathode 12, to prevent two
Pole contact and it is short-circuit.And diaphragm 13 can also be such that electrolyte ion passes through, to realize the chemical energy between anode 11 and cathode 12
With the conversion of electric energy.Diaphragm 13 separates anode 11 and cathode 12, and correspondingly, diaphragm 13 can be according to anode 11 and cathode 12
Distribution situation is set as one or more.When such as diaphragm 13 using one, diaphragm is wrapped in positive one of 11 or cathode 12, just
The other of pole 11 or cathode 12 fit in diaphragm.When diaphragm 13 is set as a plurality of, correspondingly, diaphragm 13 is corresponding to be fitted in often
One anode 11 or cathode 12.Optionally, anode 11 or cathode 12 are equipped with one or more.
In some embodiments, referring to fig. 2 (c), support plate 20 can also directly with 10 innermost layer electrode paste of battery core component
It closes, wherein innermost layer electrode can be anode 11 or cathode 12.
Next incorporated by reference to Fig. 1 and Fig. 2, referring to Fig. 3, shell 50 has an accommodating chamber.Shell 50 is for accommodating support plate
20 and battery core component 10, electrolyte be filled in the space between shell 50 and battery core component 10.Shell 50 respectively with anode 11
At least part and cathode 12 the cementing connection of at least part.
Wherein, support plate 20 is used to support battery core component 10, and two apparent surfaces of support plate 20 are attached at battery core component
10, so that battery core component 10 is adhered to two apparent surfaces of support plate 20, so that battery core component 10 and support plate 20 can
Form a not relatively-movable entirety.Battery core component 10 and support plate 20 constitute a not relatively-movable entirety, phase
Ying Di, battery core component 10 be wound in support plate 20 tensile force and winding position it is relatively fixed, the whole stress of battery core component 10 is equal
Weighing apparatus, the not battery core with 20 contact portion of support plate caused by avoiding because of the relative movement between battery core component 10 and support plate 20
Component 10 loses support, and avoid battery core component 10 because lose support plate 20 support due to cause in the part battery core component 10
There is turned-down edge and analyse the poor electric contact of lithium phenomenon and tab, influences the bad phenomenons such as charge and discharge.
Specifically, the plate-like structure of support plate 20, wherein the tool of support plate 20 is there are two the main surface 22 being oppositely arranged and even
Connect the side 21 of two main surfaces 22.Wherein, two apparent surfaces of support plate 20 are two main surfaces 22 of support plate 20.Electricity
Core assembly 10 is wound in support plate 20, correspondingly, two main surfaces 22 being oppositely arranged on battery core component 10 and support plate 20
It is bonded with two sides 21, so that battery core component 10 is wound in support plate 20.Battery core component 10 and the contact surface of support plate 20 are mutual
Bonding connection, so that battery core component 10 and support plate 20 constitute an entirety.The effectively support battery core component 10 of support plate 20
Each position and the supporting & stablizing for keeping battery core component 10 to be subject to, so that the lithium metal in charge and discharge process of battery core component 10 is equal
Even to be deposited, without generating Li dendrite in battery core component 10, the security performance of lithium cell is high.
Battery core component 10 is wrapped in outside support plate 20 and is assemblied in the accommodating chamber of shell 50, and electrolyte is filled in battery core group
In part, and/or, the gap location between shell 50 and battery core component 10, so as to form returning for conducting between anode 11 and cathode 12
Road, makes lithium cell can be carried out corresponding electric energy-chemical energy conversion, and charge and discharge are convenient.
Battery core component 10 is wound in support plate 20 and is bonded with support plate 20, correspondingly comprising following two winds shape
Formula:
One, battery core component 10 winds and is tensioned to the outside of support plate 20.It is directly wound in 10 process of battery core component
In in support plate 20, preset pretightning force is equipped between battery core component 10 and support plate 20.The battery core component 10 is in pretightning force
Battery core component 10 can be made to be tensioned to support plate 20 under effect, so that support plate 20 keeps holding state, support to battery core component 10
Effect is good, and the support force that support plate 20 acts on battery core component 10 is stablized, and battery core component 10 is avoided local turned-down edge phenomenon occur
It generates.
Two, 10 coiling and molding of battery core component and it is formed with a flat long hole, support plate 20 is inserted into flat long hole.Battery core
Component 10, which is wound, forms flat, annular structure, in support plate 20 plug connection to flat long hole, so that support plate 20 is located at electricity
At the center of core assembly 10.The inner surface of battery core component 10 is adhesively joined with support plate 20, so that battery core component 10 and support
Plate 20 constitutes an entirety, and support plate 20 plays the effect of support and positioning to battery core component 10, and stability of strutting system is good.
In one optionally embodiment, the pressure that the side 21 of support plate 20 can bear is P, 2kgf/cm2≤P≤
10kgf/cm2, i.e. support plate 20 can bear pressure and be at least 2kgf/cm2, it is at most 10kgf/cm2, and support plate 20 is herein
Dimensionally stable is kept under pressure conditions.
When battery core component 10 is wound in support plate 20 under the effect of preset pretightning force, support plate 20 is born from electricity
The extruding force of core assembly 10.Correspondingly, support plate 20 is used to support battery core component 10 and keeps the stabilization of battery core component 10, support
Deformation occurs under extruding force effect for plate 20, and the support force that battery core component 10 is subject to is stablized, so that battery core component 10 is filling
Stability is good in discharge process.
When battery core component 10 is tensioned to support plate 20, pressure that the two sides 21 of support plate 20 are transmitted by battery core component 10
Power.Wherein, the pressure P that support plate 20 can bear can be with are as follows: 2kgf/cm2、3kgf/cm2、5kgf/cm2、8kgf/cm2、
10kgf/cm2Deng.
In one optionally embodiment, support plate 20 is made of acid-alkali-corrosive-resisting material.As stainless steel, plastics, steel alloy,
Ceramics etc..In some embodiments, support plate 20 is made of metal or nonmetallic materials.In some embodiments, support plate 20
It is made of rigid material or elastic material.
Support plate 20 can be set at the center of battery core component 10.When small in size shared by the support plate 20, can accordingly it mention
The volume of high battery core component 10.In one optionally embodiment, the thickness of support plate 20 is less than or equal to 3 millimeters.Such as support plate
20 are set as: 1.5 millimeters, 2 millimeters, 2.5 millimeters, 3 millimeters of equal thickness.Support plate 20 is meeting the support force item to battery core component 10
Under part, reduce the thickness of support plate 20 to reduce the volume of support plate 20, space occupied by support plate 20 is small.
Battery core component 10 is wound in the surface of support plate 20, and at least partly battery core component 10 and the surface of support plate 20 is affixed
It closes.In some embodiments, the surface of support plate 20 has correspondingly roughness.Have on the surface of support plate 20 undulated
Local crowning structure, battery core component 10 is tensioned to 20 surface of support plate.The surface of support plate 20 is equipped with suitable roughness, when
When battery core component 10 is adhered to the surface of support plate 20, the adhesion strength of the two is high, and adhesiving effect is good.For example, in support plate 20
The surface that surface coating subcoat 24 and/or battery core component 10 are contacted with support plate 20 is equipped with adhesion material, so as to improve branch
The adhesion strength of support part 20 and battery core component 10.Wherein, which can directly be adhesively joined for the two, or default
Technique under high-temperature fusion connect.
To avoid local crowning structure from piercing through part battery core component 10, causes battery core component 10 to damage, support plate need to be controlled
The range of 20 surface roughness.In one embodiment, the roughness range on 20 surface of support plate is 3~10 microns.Support plate
The roughness range on 20 surfaces is 3 microns, 4 microns, 5 microns, 8 microns, 10 microns etc..
Battery core component 10 can also be adhesively joined with support plate 20.On the basis of Fig. 1~3, Fig. 4, Fig. 5 are referred to.?
In one embodiment, the surface of support plate 20 is coated with subcoat 24, and subcoat 24 is used for cementing 20 appearance of connection support plate
The contact portion in face and battery core component 10.Support plate 20 is adhered on battery core component 10 by subcoat 24, and adherency is convenient.?
One optionally in embodiment, subcoat 24 with a thickness of 1~5 micron.Specifically, the thickness of subcoat 24 be set as 1 micron,
2 microns, 3 microns, 5 microns etc..In one optionally embodiment, subcoat 24 is coated on two opposite tables of support plate 20
The whole region in face；Or the predeterminable area coated on support plate 20.
Region coated by subcoat 24 is the adhesive area of battery core component 10 Yu support plate 20.Subcoat 24 is pre-
It is first coated on the predeterminable area on 20 surface of support plate, the connecting portion of control support plate 20 and battery core component 10 can be facilitated, controllably
Property is good, easy to connect.In one optionally embodiment, subcoat 24 includes following at least one material: polyvinylidene fluoride,
Polymethyl methacrylate, butadiene-styrene rubber.
Subcoat 24 is coated on the predeterminable area of support plate 20, to control the adherency of subcoat 24 Yu battery core component 10
Link position.Optionally, subcoat 24 can be equipped with homogenous material and coating is made, and can also be composed of multiple material, with structure
At the different materials coating of different zones.For example, subcoat 24 is by polyvinylidene fluoride, polymethyl methacrylate, butylbenzene
One of materials such as rubber constitute single coating, which is coated on two apparent surfaces of support plate 20.
Optionally, polyvinylidene fluoride, polymethyl methacrylate, butylbenzene are coated on one of surface of support plate 20
One of the materials such as rubber material coats polyvinylidene fluoride, polymethyl methacrylate, butylbenzene rubber in another apparent surface
One of remaining material in the materials such as glue, so that the coating that there is the different surfaces of support plate 20 multiple material to constitute, with suitable
Answer the caking property of the different contact surfaces of battery core component 10.
Battery core component 10 is wound in outside support plate 20 and is bonded to each other with subcoat 24, can be by processing work accordingly
Skill makes battery core component 10 and 24 bonding connection of subcoat, and such as fixture chemical synthesis technology, bond effect is good.Battery core component 10 and branch
Fagging 20 constitutes an inseparable entirety, enables support plate 20 to provide support to battery core component 10, moreover it is possible to make battery core group
Part 10 will not be displaced relative to support plate 20, keep the stable structure of battery core component 10.
In one optionally embodiment, the width of the width and battery core component 10 of support plate 20 matches.For example, support plate
20 width is equal with the width of battery core component 10, then the width of battery core component 10 and the width for support plate 20, lithium cell
Size Control precision is high.Or the width of support plate 20 is slightly larger than the width of battery core component 10, so that battery core component 10 was wound
Cheng Zhongneng is fully defined in support plate 20, and stable support force, high reliablity are provided by support plate 20.
Support plate 20 can be set to plate structure, and support plate 20 is such as set as rectangular plate-like structure.In turning for support plate 20
It can be equipped with arc angling at angle, scratch battery core component 10 to avoid support plate 20.To further increase support plate 20 and electricity
The bonding tightness of core assembly 10.In one embodiment, the junction of two apparent surfaces can be set to curved surface 23, battery core component
10 are tensioned to curved surface 23 and are bent along curved surface 23.Optionally, curved surface 23 is arc-shaped curved surface 23, and arc-shaped curved surface 23 is to far from support plate
The direction of 20 central area gradually tilts.
Two main surfaces 22 of support plate 20 can be set to the inclined curved surface 23 of side directions, so that battery core component volume 10
During being around in support plate 20, battery core component 10 as curved surface 23 is wound and fits in support plate 20, battery core component 10 by
Stress concentration it is small.Arc-shaped curved surface 23 can be set in two opposite planes and tilt at extrorse side 21, the side
21 are used to support battery core component 10.Optionally, side 21 is set as arcwall face and intersects with curved surface 23, so that battery core component 10 is smooth
Transition.Optionally, the side 21 of support plate 20 and the intersection of two main surfaces 22 composition " C " font or " V " character form structure, and
Sharp corner is connected using arc transition.
Battery core component 10 is wound in support plate 20, and the inner surface of battery core component 10 is bonded with the surface of support plate 20.
In one embodiment, the inner surface of battery core component 10 is coated with bonding coat.As bonding coat is coated in battery core component 10
Side surface, battery core component 10 wind and are tensioned to two apparent surfaces of support plate 20, support plate 20 can with bonding coat
It is bonded to each other.For another example bonding coat is coated on the inner wall of flat long hole, and support plate 20 is inserted into flat long hole and is applied with bonding
Layer is bonded to each other.After battery core component 10 and support plate 20 are processed by fixture chemical synthesis technology, bonding coat and support plate 20 are viscous
Knot connection then makes battery core component 10 and support plate 20 constitute an entirety, bond effect is good in one.Optionally, it bonds
Coating includes following at least one material: polyvinylidene fluoride, polymethyl methacrylate, butadiene-styrene rubber, carboxymethyl cellulose
Sodium.In one optionally embodiment, the material of the material and subcoat 24 of bonding coat is identical or different.
Battery core component 10 includes at least positive plate, the diaphragm 13, negative electrode tab being sequentially overlapped.Optionally, positive plate is pasted with
Diaphragm 13.Support plate 20 is bonded with the innermost layer of battery core component 10, and optionally, the innermost layer of battery core component 10 is diaphragm 13.Electricity
Core assembly 10 is wound in support plate 20, and diaphragm 13 fits in the surface of support plate 20, can effectively by positive plate or negative electrode tab with
Support plate 20 is isolated, while can pass through diaphragm 13 and 20 bonding connection of support plate again.The charge and discharge safety of battery core component 10 is good,
Structural stability is good.In one optionally embodiment, the width of diaphragm 13 is greater than or equal to the width of anode 11 and cathode 12.
As shown in Figures 2 and 3, diaphragm 13 separates anode 11 and cathode 12, and the electronics between anode 11 and cathode 12 can lead to
The transmitting of diaphragm 13 is crossed, to carry out the transmitting of electric energy.13 width of diaphragm is greater than or equal to the width of anode 11 and cathode 12, can have
Effect avoids anode 11 from being directly connected to cathode 12, and isolation effect is good.
In conjunction with Fig. 2, Fig. 3, referring to Fig. 6, in one embodiment, diaphragm 13 includes basement membrane 131, is coated on 131 two sides of basement membrane
The first coating 132 on surface and coated on the second coating 133 outside first coating 132, first coating 132 is for controlling electric current
Flowing, second coating 133 connects the surface that is bonded with second coating 133 for cementing.Optionally, substrate using polypropylene,
Polyethylene, polypropylene and composite polyethylene material etc..
Diaphragm 13 has the micropore of a large amount of tortuous perforations, can guarantee that electrolyte ion passes freely through to form charge and discharge time
Road.And when battery overcharges or temperature increases, diaphragm 13 is by the closed pore function of first coating 132 by the anode of battery
11 and cathode 12 separate, short-circuit to prevent it from directly contacting, and reach barrier electric current conduction, prevent the even explosion of battery overheat
Effect.Optionally, first coating 132 includes following at least one material: magnesia, aluminium oxide, zirconium oxide, magnesia, zeolite,
Titanium carbide.Optionally, the thickness of first coating 132 is set as 1~3 micron.Specifically, 132 thickness of first coating be set as 1 micron,
1.5 microns, 2 microns, 2.5 microns, 3 microns etc..
For example, basement membrane 131 surface coat one layer of magnesia, aluminium oxide, zirconium oxide, magnesia, zeolite, titanium carbide or its
The inorganic matter ceramic particle of his excellent heat resistance forms first coating 132 after process and exists with 131 tight bond of basement membrane
Together.The flexibility of 13 stable bond organic matter of diaphragm and the thermal stability of inorganic matter improve high temperature resistant, the heat-resisting receipts of diaphragm 13
Contracting performance and puncture strength, and then improve the security performance of battery.
Second coating 133 is coated in first coating 132, and is adhered under correspondingly bonding process and second coating
The surface of 133 contacts.If second coating 133 is contacted with the outer surface part of support plate 20, correspondingly, second coating 133 and branch
20 bonding connection of fagging.Or in 10 winding process of battery core component, second coating 133 is contacted with positive plate or negative electrode tab, second
Coating 133 and positive plate or negative electrode tab bonding connection.Optionally, second coating 133 includes following at least one material: gathering inclined two
Vinyl fluoride, polymethyl methacrylate, butadiene-styrene rubber, sodium carboxymethylcellulose.133 thickness of second coating is set as 1~2 micron.
Specifically, 133 thickness of second coating is set as 1 micron, 1.2 microns, 1.5 microns, 2 microns etc..
Optionally, one layer is coated by polyvinylidene fluoride, polymethyl methacrylate, fourth on the surface of first coating 132
Benzene rubber, sodium carboxymethylcellulose or other chemical corrosion resistances, high temperature resistant be color distortion, oxidative resistance, wearability, flexibility with
And the second coating 133 that the material of very high anti-rise intensity and impact resistance intensity is constituted, in second coating 133 and second coating
And basement membrane 131 is combined, so that diaphragm 13 has compatibility more better than common batteries diaphragm and adhesiveness, electricity can be increased substantially
The high temperature resistance and safety in pond.The ability that there is diaphragm 13 good infiltration and imbibition to protect liquid, to the absorbability of electrolyte
It is good, extend battery cycle life, increases the big multiplying power discharging property of battery.
In one optionally embodiment, the surface of support plate 20 is coated with subcoat 24, the material of second coating 133 with
The material of subcoat 24 is identical.When diaphragm 13 winds and fits in the surface of support plate 20, subcoat 24 and second is applied
The fusion under corresponding processing technology of layer 133 forms one, so that diaphragm 13 and battery core component 10 are adhered in support plate 20, glues
Knot effect is good, and the adsorption strength of binding site is high.
In another optionally embodiment, the surface of support plate 20 is coated with subcoat 24, when battery core component 10 is wound
And when fitting in the surface of support plate 20, subcoat 24 can under corresponding processing technology with the innermost layer of battery core component 10
Bonding, so that battery core component 10 is adhered in support plate 20.Wherein, 10 innermost layer of battery core component is the gold coated with electrode material
Belong to film (not shown), that is, anode 11 or cathode 12.For example, surface applies the aluminium foil of coated positive pole material or surface applies
Cover the copper foil of negative electrode material.Wherein, metallic film side is located at 10 innermost layer of battery core component, contacts with support plate 20.To electricity
Core assembly 10 and support plate 20 are capable of forming a not relatively-movable entirety.
It is correspondingly formed on the surface of support plate 20 undulated on the surface of support plate 20 with correspondingly roughness
Protrusion and form correspondingly lug boss.Diaphragm 13 fits in 20 surface of support plate, and correspondingly, lug boss and diaphragm 13 mutually squeeze
Pressure.In one optionally embodiment, the thickness of diaphragm 13 is set as b, and the height of lug boss is set as b1, wherein b1 < b.Diaphragm 13
Thickness be greater than the height of lug boss, correspondingly, the fluctuating position of lug boss is not easy to pierce through diaphragm 13, avoids anode 11 and cathode
12 are connected to and cause safety accident, and protecting effect is good.
As shown in figure 3, in one embodiment, anode 11 is equipped with an at least anode ear 30, anode ear 30 and is convexly equipped in battery core group
The side of part 10.Cathode 12 is equipped with an at least negative electrode lug 40, negative electrode lug 40 and is convexly equipped in the side of battery core component 10.Wherein, at least
One anode ear 30 and at least one negative electrode lug 40 intert to outside shell 50.Anode ear 30 is connect with positive plate, anode ear 30 1
Shell 50 is run through at end.Negative electrode lug 40 is connect with negative electrode tab, and shell 50 is run through in one end of negative electrode lug 40.Optionally, anode ear 30 with
Negative electrode lug 40 is arranged at intervals at the same side of shell 50.When anode 11 is provided with multiple anode ears 30, by multiple anode ears 30
(electricity) links into an integrated entity.Correspondingly, when cathode 12 is provided with multiple negative electrode lugs 40, multiple negative electrode lugs 40 (electricity) are connected into one
Body.
In one embodiment, cathode 12 includes lithium metal or lithium metal compounds.In one embodiment, cathode 12 is surface
Adhere to the copper foil of lithium metal film or lithium metal compounds.In one embodiment, anode 11 includes following at least one material: simple substance
Sulphur, cobalt acid lithium, LiMn2O4, LiFePO4, nickel cobalt manganese material.In one embodiment, anode 12 for surface attachment comprising elemental sulfur,
The aluminium foil of at least one material of cobalt acid lithium, LiMn2O4, LiFePO4, nickel cobalt manganese.
Battery core component 10 and electrolyte are contained in shell 50 and are protected by shell 50.In one embodiment, shell 50 wraps
Include following at least one: aluminum plastic film, steel shell, aluminum hull.Optionally, shell 50 is set as square structure, to be adapted to battery core component 10
Shape.
When battery core component 10 carries out flexible package using aluminum plastic film, the battery core component 10 with support plate 20 is packed into band plastic-aluminum
In the accommodating chamber of film.Via corresponding process the anode ear 30 of battery core component 10 and negative electrode lug 40 are interted to shell 50 simultaneously
Outside, and at binding site it seals, such as top side seal process.
Electrolyte is poured by the side openings of aluminum plastic film again.Optionally, electrolyte includes following at least one: including six
The carbonate-based solvent of lithium fluophosphate, gel-like electrolyte.The aluminum plastic film of electrolyte and battery core component 10 will be equipped with through corresponding
Processing technology formed a lithium cell.For example, the chemical conversion of an envelope, fixture and two envelope processes.
Above-mentioned lithium cell is applied in intelligent battery, so that lithium cell can provide electric energy for equipment correspondingly, together
When also can pass through charge function carry out chemical energy conversion.
As shown in fig. 7, in one embodiment, intelligent battery includes: battery case 80 equipped with accommodating chamber is set to outside battery
It the positive terminal 60 and negative terminal 70 of shell 80, at least one such as lithium cell provided by the above embodiment and is mounted in accommodating chamber
Control assembly 90, wherein lithium cell is housed in accommodating chamber.Positive terminal 60 and negative terminal 70 are used for and external device (ED) electricity
Connection.Control assembly 90 is electrically connected with positive terminal 60, negative terminal 70 and lithium cell, for the state to lithium cell into
Row control.Lithium cell carries out charge or discharge by positive terminal 60, negative terminal 70.
Battery case 80 is set as a rigid structure, internal to form an accommodating chamber, so that control assembly 90 and lithium cell peace
Loaded in battery case 80 and by the protection of battery case 80.Lithium cell carries out charge and discharge by positive terminal 60 and negative terminal 70
Electricity, wherein the anode ear 30 of lithium cell is connect with positive terminal 60, and negative electrode lug 40 is connect with negative terminal 70, electric energy transmission side
Just.
In one optionally embodiment, battery case 80 is set as square structure.Battery case 80 includes following at least one:
Insulated plastic material shell, steel shell, aluminum hull.
In one optionally embodiment, control assembly 90 includes the control panel being installed in battery case 80 and is installed on control
The processor of making sheet, control panel are electrically connected with positive terminal 60, negative terminal 70 and lithium cell, and processor is used for lithium electricity
The state of core is managed.Such as, processor flows through the parameters such as electric current, the voltage of control by detection, and control lithium cell is filled
The control of electric discharge, and access is disconnected in abnormal cases, so that lithium battery is in an off state.
In one optionally embodiment, control assembly 90 further includes the detecting element for being installed on control panel, and detecting element is used
Gas parameter in detection lithium cell and/or accommodation space.Detecting element can detect gas parameter correspondingly, such as gas temperature
Degree, gas pressure etc..Optionally, detecting element includes baroceptor, temperature sensor, humidity sensor etc..When outside battery
When internal pressure in shell 80 rises to certain numerical value, the safety valve on battery case 80 is automatically opened, and guarantees the use of battery
Safety.When the temperature in battery case 80 reaches preset value, control assembly 90 controls battery core component 10 and automatically powers off, to protect
Demonstrate,prove the safe handling of intelligent battery.
In one embodiment, a kind of manufacturing method of lithium cell is provided comprising following steps:
S101: a support plate 20 is provided, wherein support plate 20 is used to support battery core component 10.The plate-like knot of support plate 20
Structure, wherein there are two the sides 21 of two main surfaces 22 of the main surface 22 being oppositely arranged and connection for the tool of support plate 20.
S102: a battery core component 10 is wound in support plate 20, is coated on support plate 20 in battery core component 10, accordingly
Two main surfaces 22 and two sides 21 being oppositely arranged in ground, battery core component 10 and support plate 20 are bonded, so that battery core component
10 are wound in support plate 20.Wherein, battery core component 10 includes at least one cathode 12, at least one anode 11, and can be incited somebody to action
Anode 11 and the spaced diaphragm 13 of cathode 12.Battery core component 10 is wound in support plate 20, so that support plate 20 is battery core
Component 10 provides stable support force, and the shape stability of battery core component 10 is good.
S103: support plate 20 and battery core component 10 are contained in the accommodating chamber of the shell 50 with opening.
S104: electrolyte is filled in the space between shell 50 and battery core component 10.
S105: two apparent surfaces of support plate 20 are attached at battery core component 10, battery core component 10 is made to be adhered to support
Two apparent surfaces of plate 20, so that battery core component 10 and support plate 20 are capable of forming a not relatively-movable entirety.
The contact surface connection adhered to one another of battery core component 10 and support plate 20, so that battery core component 10 and support plate 20 are constituted
One entirety.Support plate 20 effectively supports each position of battery core component 10 and the support force for keeping battery core component 10 to be subject to is steady
It is fixed, so that the lithium metal uniform deposition in charge and discharge process of battery core component 10 comes out, without generating in battery core component 10
Li dendrite, to improve the security performance of lithium cell.
Battery core component 10 is wrapped in outside support plate 20 and is assemblied in the accommodating chamber of shell 50, and electrolyte is filled in shell 50
With the gap location between battery core component 10, so that lithium cell can generate corresponding electric energy-chemical energy conversion, charge and discharge are convenient.
When battery core component 10 carries out flexible package using aluminum plastic film, the battery core component 10 with support plate 20 is packed into band plastic-aluminum
In the accommodating chamber of film, while the anode ear 30 of battery core component 10 and negative electrode lug 40 can be made to intert to shell via corresponding process
Outside body 50, and sealed at binding site, such as top side seal process.
Electrolyte, then the aluminum plastic film that electrolyte and battery core component 10 will be equipped with are poured by the side openings of aluminum plastic film again
A lithium cell is formed through corresponding processing technology.Such as the chemical conversion of an envelope, fixture and two envelope processes.Lithium cell convenient formation, shape
Stability is good.
It further include that battery core component 10 is wound in support plate 20 under pre-tension effect in above-mentioned steps S102.Electricity
It is directly wound in support plate 20, is equipped between battery core component 10 and support plate 20 preset pre- in 10 process of core assembly
Clamp force.The battery core component 10 can make battery core component 10 be tensioned to support plate 20 under pretightning force effect, so that 20 pairs of electricity of support plate
Core assembly 10 keeps holding state, and support effect is good, and the support force that support plate 20 acts on battery core component 10 is stablized, and avoids battery core
There is the generation of local turned-down edge phenomenon in component 10.Optionally, the pretightning force pressure that battery core component 10 acts on support plate 20 is less than
8kgf/cm2。
In above-mentioned steps S102, further include；10 coiling and molding of battery core component is simultaneously formed with a flat long hole, support plate 20
It is inserted into flat long hole and is in the predeterminated position of battery core component 10.The winding of battery core component 10 forms flat, annular structure, support plate
In 20 plug connections to flat long hole, so that support plate 20 is located at the center of battery core component 10.The inside of battery core component 10
Surface is adhesively joined with support plate 20, so that battery core component 10 and support plate 20 constitute an entirety, support plate 20 is to battery core group
Part 10 plays the effect of support and positioning, and stability of strutting system is good.
In one optionally embodiment, the surface of support plate 20 is coated with subcoat 24, subcoat 24 with a thickness of 1
~5 microns.Region coated by subcoat 24 is the adhesive area of battery core component 10 Yu support plate 20.Subcoat 24 is pre-
First two opposing surface areas on 20 surface of predeterminable area or support plate coated on 20 surface of support plate can facilitate control branch
The connecting portion of fagging 20 and battery core component 10, controllability is good, easy to connect.
, can be by fixture chemical synthesis technology, in preset temperature range in above-mentioned steps S105, battery core component 10 can
It is adhered to two apparent surfaces of support plate 20.In one optionally embodiment, the preset temperature range of fixture chemical synthesis technology is
25-85℃.For example, shell 50 is carried out an envelope and by standing so that electrolyte is abundant after injecting electrolyte into shell 50
Infiltrate battery core component 10.The shell 50 for completing to stand is put into progress high temperature hot pressing processing in formation device, such as at 85 DEG C
High temperature hot pressing is carried out, so that support plate 20 and 10 bonding connection of battery core component, and chemical conversion operation is carried out to lithium battery.Optionally,
Lithium cell is placed in cold pressing area again to be cold-pressed, room temperature cold pressing is carried out such as at 25 DEG C, so that support plate 20 and battery core component
10 are further bonded.
In one optionally embodiment, during carrying out hot pressing processing and cold presswork to lithium cell, fixture is to lithium electricity
Core applies preset pressure values, so that lithium cell bonds under correspondingly pressure values, so that battery core component 10 and 20 structure of support portion
At an inseparable entirety, and keep position and the attitude stabilization of battery core component 10 and support portion 20.Optionally, fixture
Preset pressure values range is applied to lithium cell and is set as 0.8~1.3Mpa.It specifically, can be according to the material and specification of lithium cell
Size adjusting correspondingly pressure parameter, such as the pressure values are set as 0.8Mpa, 1MPa, 1.2Mpa, 1.3Mpa.Optionally, fixture
Pressure values when carrying out hot pressing processing to lithium cell are greater than the pressure values of cold presswork.Wherein, cold presswork can be mentioned further
Adhesion strength between high battery core component 10 and support plate 20 simultaneously keeps the pressure of battery core component to stablize.
The above is only the preferred embodiments of the disclosure, not to limit the disclosure, all spirit in the disclosure and
Within principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of disclosure protection.
Claims (37)
1. a kind of lithium cell characterized by comprising
Plate-like support plate；
Battery core component, the battery core component make the support plate be coated on the battery core component in the support plate
Interior, the battery core component includes at least one cathode, at least one anode, and the positive electrode and negative electrode interval can be arranged
Diaphragm, the support plate is at least partly bonded with the diaphragm；
Shell, the shell have an accommodating chamber, for accommodating the support plate and the battery core component, the shell difference
With the cementing connection of at least part of at least part and the cathode of the anode；And
Electrolyte, the electrolyte are filled in the sky in the battery core component and/or between the shell and the battery core component
Between；
Wherein, the support plate is used to support the battery core component, and two apparent surfaces of the support plate are attached at the electricity
Core assembly enables the battery core component to be adhered to two apparent surfaces of the support plate, thus the battery core component and institute
It states support plate and is capable of forming a not relatively-movable entirety.
2. lithium cell according to claim 1, which is characterized in that the battery core component winds and is tensioned to the support plate
Two apparent surfaces；
Or, the battery core component coiling and molding and being formed with a flat long hole, the support plate is inserted into the flat long hole.
3. lithium cell according to claim 1, which is characterized in that the pressure that the side of the support plate can bear is P,
2kgf/cm2≤P≤10kgf/cm2, and the support plate keeps dimensionally stable under this pressure conditions.
4. lithium cell according to claim 1, which is characterized in that the thickness of the support plate is less than or equal to 3 millimeters.
5. lithium cell according to claim 1, which is characterized in that the roughness range of the support plate surface is 3~10
Micron.
6. lithium cell according to claim 1, which is characterized in that the surface of the support plate is coated with subcoat, institute
State contact portion of the subcoat for cementing connection the support plate outer surface and the battery core component.
7. lithium cell according to claim 6, which is characterized in that the subcoat with a thickness of 1~5 micron.
8. lithium cell according to claim 6 or 7, which is characterized in that the subcoat includes following at least one material
Material: polyvinylidene fluoride, polymethyl methacrylate, butadiene-styrene rubber.
9. lithium cell according to claim 6, which is characterized in that the basic coating application is in two of the support plate
The whole region of apparent surface, or the predeterminable area coated on the support plate.
10. lithium cell according to claim 1, which is characterized in that the support plate is by rigid material or elastic material system
At.
11. lithium cell according to claim 1, which is characterized in that the support plate is made of acid-alkali-corrosive-resisting material.
12. lithium cell according to claim 1, which is characterized in that the support plate is by metal material or nonmetallic materials
It is made.
13. lithium cell according to claim 1 or 2, which is characterized in that the width of the support plate and the battery core component
Width match.
14. lithium cell according to claim 13, which is characterized in that the junction of two apparent surfaces is set as bent
Face, the battery core component are tensioned to the curved surface and are bent along the curved surface.
15. lithium cell according to claim 14, which is characterized in that the curved surface is arc-shaped curved surface, the arc-shaped curved surface
It is gradually tilted to the direction of the central area far from the support plate.
16. lithium cell according to claim 1, which is characterized in that the inner surface of the battery core component is coated with bonding and applies
Layer.
17. lithium cell according to claim 16, which is characterized in that the bonding coat includes following at least one material
Material: polyvinylidene fluoride, polymethyl methacrylate, butadiene-styrene rubber, sodium carboxymethylcellulose.
18. lithium cell according to claim 1, which is characterized in that the innermost layer of the support plate and the battery core component
Fitting, the innermost layer of the battery core component are the diaphragm.
19. lithium cell according to claim 1, which is characterized in that the width of the diaphragm is greater than or equal to the anode
And the width of the cathode.
20. lithium cell according to claim 1, which is characterized in that the diaphragm includes basement membrane, is coated on the basement membrane two
The first coating of side surface and coated on the second coating outside the first coating, the first coating is for controlling electric current
Flowing, the second coating connect the surface being bonded with the second coating for cementing.
21. lithium cell according to claim 20, which is characterized in that the first coating includes following at least one material
Material: magnesia, aluminium oxide, zirconium oxide, magnesia, zeolite, titanium carbide.
22. the lithium cell according to claim 20 or 21, which is characterized in that it is micro- that the thickness of the first coating is set as 2~3
Rice.
23. lithium cell according to claim 20, which is characterized in that the second coating includes following at least one material
Material: polyvinylidene fluoride, polymethyl methacrylate, butadiene-styrene rubber, sodium carboxymethylcellulose.
24. lithium cell according to claim 20, which is characterized in that the surface of the support plate is coated with subcoat,
The material of the second coating is identical as the material of the subcoat.
25. lithium cell according to claim 20, which is characterized in that the second coating thickness is set as 1~2 micron.
26. lithium cell according to claim 1, which is characterized in that the thickness of the diaphragm is set as b, the support plate
Surface is equipped with lug boss, and the height of the lug boss is set as b1, wherein b1 < b.
27. lithium cell according to claim 1, which is characterized in that the anode is equipped with an at least anode ear, the anode
Ear is convexly equipped in the side of the battery core component；The cathode is equipped with an at least negative electrode lug, and the negative electrode lug is convexly equipped in the battery core
The side of component；Wherein, at least one described anode ear and at least one negative electrode lug intert to outside the shell.
28. lithium cell according to claim 27, which is characterized in that the cathode includes lithium metal or lithium metal chemical combination
Object.
29. lithium cell according to claim 27, which is characterized in that the cathode is that lithium metal film or lithium gold are adhered in surface
Belong to the copper foil of compound.
30. lithium cell according to claim 27, which is characterized in that described just extremely surface attachment includes elemental sulfur, cobalt
The aluminium foil of at least one material of sour lithium, LiMn2O4, LiFePO4, nickel cobalt manganese.
31. lithium cell according to claim 1, which is characterized in that the shell includes following at least one: aluminum plastic film,
Steel shell, aluminum hull.
32. lithium cell according to claim 1, which is characterized in that the electrolyte includes following at least one: including six
The carbonate-based solvent of lithium fluophosphate, gel-like electrolyte.
33. a kind of intelligent battery characterized by comprising
Battery case is equipped with accommodating chamber；
Set on the positive terminal and negative terminal of the battery case, the positive terminal and negative terminal is used for and external device (ED)
Electrical connection；
At least one is housed in the accommodating chamber such as the described in any item lithium cells of claims 1 to 32；And
Control assembly is mounted in the accommodating chamber,
Wherein, the control assembly is electrically connected with the positive terminal, the negative terminal and the lithium cell, for pair
The state of the lithium cell is managed, and the lithium cell is charged or put by the positive terminal, the negative terminal
Electricity.
34. intelligent battery according to claim 33, which is characterized in that the battery case is set as square structure.
35. intelligent battery according to claim 34, which is characterized in that the battery case includes following at least one:
Insulated plastic material shell, steel shell, aluminum hull.
36. intelligent battery according to claim 33, which is characterized in that the control assembly includes being installed on the battery
Control panel in shell and the processor for being installed on control panel, the control panel and the positive terminal, the negative terminal, with
And the lithium cell electrical connection, the processor is for managing the state of the lithium cell.
37. intelligent battery according to claim 36, which is characterized in that the control assembly further includes being installed on the control
The detecting element of making sheet, the detecting element are used to detect the gas parameter in lithium cell and/or accommodation space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821624003.2U CN208835203U (en) | 2018-09-30 | 2018-09-30 | Lithium cell and intelligent battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821624003.2U CN208835203U (en) | 2018-09-30 | 2018-09-30 | Lithium cell and intelligent battery |
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| Publication Number | Publication Date |
|---|---|
| CN208835203U true CN208835203U (en) | 2019-05-07 |
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ID=66317272
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114792836A (en) * | 2022-06-27 | 2022-07-26 | 宁德新能源科技有限公司 | Battery and power consumption device |
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2018
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114792836A (en) * | 2022-06-27 | 2022-07-26 | 宁德新能源科技有限公司 | Battery and power consumption device |
| CN114792836B (en) * | 2022-06-27 | 2022-08-26 | 宁德新能源科技有限公司 | Battery and power consumption device |
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Granted publication date: 20190507 |