CN213340535U - Battery top cap subassembly, battery monomer and battery package - Google Patents
Battery top cap subassembly, battery monomer and battery package Download PDFInfo
- Publication number
- CN213340535U CN213340535U CN202022112795.9U CN202022112795U CN213340535U CN 213340535 U CN213340535 U CN 213340535U CN 202022112795 U CN202022112795 U CN 202022112795U CN 213340535 U CN213340535 U CN 213340535U
- Authority
- CN
- China
- Prior art keywords
- top cap
- hole
- plastic part
- mounting groove
- battery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000178 monomer Substances 0.000 title abstract description 6
- 238000009826 distribution Methods 0.000 claims abstract description 4
- 230000007423 decrease Effects 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 description 5
- 239000003792 electrolyte Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Battery Mounting, Suspending (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a battery top cap subassembly, battery monomer and battery package. Battery top cap subassembly, a casing for holding core package is sealed, including top cap body and insulating plastic part, the plastic part sets up the side at the top cap body towards the core package, be provided with anodal terminal and negative terminal on the top cap body respectively, anodal terminal and negative terminal are respectively along top cap body length direction interval distribution, the plastic part corresponds anodal terminal and has seted up anodal hole, the plastic part corresponds negative terminal and has seted up the negative pole hole, the plastic part is provided with the connecting piece towards a side protrusion of top cap body, the connecting piece is located between anodal hole and the negative pole hole, the connecting hole has been seted up to the top cap body, the connecting piece interference is pegged graft in the connecting hole. The possibility that the core bag is extruded due to downward bending of the plastic piece can be avoided, and the safety of the core bag is improved.
Description
Technical Field
The utility model relates to a battery technology field especially relates to a battery top cap subassembly, contain battery monomer and battery package of this battery top cap subassembly.
Background
Along with the development of power batteries, the safety of the batteries is more and more emphasized by people. The safety of the battery depends on the process optimization of the internal core package, and after the winding type core package is subjected to formation and capacity offline in the assembling process, the core package is disassembled to discover that: because the lower plastic is made of PP material, the lower plastic is extended under the heat influence of battery shell-cover laser welding and the soaking of electrolyte inside the battery monomer, the stress is concentrated in the middle of the lower plastic, the top cover body on the upper surface of the lower plastic can prevent the lower plastic from tilting upwards, and therefore the middle of the lower plastic can only bend downwards. The lower plastic of downwarping can extrude the middle part of core package, causes the damage to the core package, then can make the negative pole piece lose powder after the pressurized and lead to the inside short circuit of electric core when serious, seriously influences the security performance of battery.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an aim at: the battery top cover assembly can avoid the possibility of extruding the core package due to downward bending of the plastic piece, and is beneficial to improving the safety of the core package.
The utility model discloses another aim at: provided are a battery cell and a battery pack, which have the characteristic of high safety.
In order to achieve the purpose, the utility model adopts the following technical proposal:
on the one hand, the battery top cover assembly is used for sealing a shell for containing a core package, and is characterized by comprising a top cover body and an insulating plastic part, wherein the plastic part is arranged on one side face of the core package, the top cover body is provided with a positive terminal and a negative terminal, the positive terminal and the negative terminal are distributed at intervals along the length direction of the top cover body, the plastic part corresponds to the positive terminal and is provided with a positive hole, the plastic part corresponds to the negative terminal and is provided with a negative hole, the plastic part is convexly provided with a connecting piece towards one side face of the top cover body, the connecting piece is positioned between the positive hole and the negative hole, the top cover body is provided with a connecting hole, and the connecting piece is in interference insertion connection with the connecting hole.
Further, the connecting piece include with the spliced pole that the plastic part is connected and be located the spliced pole is kept away from the connection convex part of plastic part one end, it is the semicircle ball structure to connect the convex part.
Further, the connecting piece is provided with at least two, at least two the connecting piece is along plastic part width direction interval distribution.
Furthermore, the plastic part is positioned between the positive pole hole and the negative pole hole and is concavely provided with a vent groove, a vent hole is formed in the vent groove in a penetrating mode, and the connecting piece is arranged at the bottom of the vent groove.
Further, the thickness of the plastic part is gradually reduced from the position of the connecting piece to the direction of the positive pole hole or the negative pole hole.
Further, first mounting groove and the second mounting groove of interval distribution are concavely equipped with on the plastic part respectively, the tank bottom of first mounting groove sets up anodal hole, the tank bottom of second mounting groove sets up the negative pole hole, the top cap body is equipped with anodal terminal mounting groove and negative terminal mounting groove respectively, anodal terminal mounting groove with first mounting groove is just right, the negative terminal mounting groove with the second mounting groove is just right, the tank bottom of anodal terminal mounting groove with the tank bottom of negative terminal mounting groove all faces one side protrusion of plastic part forms the bulge, the tank bottom of anodal terminal mounting groove is run through and has been seted up first through-hole, the tank bottom of negative terminal mounting groove is run through and has been seted up the second through-hole.
Furthermore, the plastic part is located between the positive pole hole and the connecting piece and/or between the negative pole hole and the connecting piece, and a corrugated structure is arranged and extends along the length direction of the plastic part.
Further, the ripple structure includes a plurality of concave arc portions and a plurality of convex arc portions, all concave arc portions and all convex arc portions all follow plastic part length direction distributes, just concave arc portions with convex arc portion staggered connection.
In another aspect, still provide a battery monomer, above-mentioned top cap subassembly.
In another aspect, a battery pack is provided, which includes the battery cell.
The utility model has the advantages that: the connecting piece is arranged at the position, between the positive pole hole and the negative pole hole, of the plastic part, the connecting piece is connected with the top cover body in an interference insertion mode, and therefore the reliability of the top cover body and the plastic part assembly is improved when the plastic part is convenient to assemble. The casing all can make the plastic part take place deformation with the laser welding of top cap subassembly and soaking of electrolyte, and then the middle part that makes the plastic part has the effort of downwarping, because the connecting piece is located between anodal hole and the negative pole hole, and the connecting piece interference is pegged graft in the connecting hole, top cap body accessible connecting piece provides traction force for the middle part of plastic part, the middle part that effectively prevents the plastic part is crooked towards the core package direction, and then avoid leading to the core package to damage because of the plastic part is crooked to the core package extrusion, be favorable to improving the security of core package.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is a schematic structural diagram of a battery top cap assembly according to an embodiment.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is a schematic structural diagram of the top cover body according to the embodiment.
Fig. 4 is a schematic structural view of the plastic part according to the embodiment.
Fig. 5 is a schematic structural view for implementing the corrugated structure.
In the figure:
1. a top cover body; 11. connecting holes; 12. a positive terminal mounting groove; 13. a negative terminal mounting groove; 14. an explosion-proof hole; 15. a liquid injection hole; 16. a first through hole; 17. a second through hole;
2. a plastic part; 21. a positive electrode hole; 22. a negative electrode hole; 23. a connecting member; 231. connecting columns; 232. a connecting projection; 24. a corrugated structure; 241. a concave arc portion; 242. a convex arc portion; 25. a vent channel; 251. a vent hole; 26. a first mounting groove; 27. a snap-in hole; 28. a through hole; 29. and a second mounting groove.
Detailed Description
In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1 to 5, the present invention provides a battery top cover assembly for sealing a case containing a core pack. The battery top cover assembly comprises a top cover body 1 and an insulating plastic part 2, the plastic part 2 is arranged on one side face, facing the core package, of the top cover body 1, a positive terminal and a negative terminal are respectively arranged on the top cover body 1, and the positive terminal and the negative terminal are respectively distributed at intervals along the length direction of the top cover body 1. Plastic part 2 has seted up anodal hole 21 corresponding to the positive terminal, and plastic part 2 has seted up negative pole hole 22 corresponding to the negative terminal, and plastic part 2 is provided with connecting piece 23 towards a side protrusion of top cap body 1, and connecting piece 23 is located between anodal hole 21 and the negative pole hole 22, and top cap body 1 has seted up connecting hole 11, and connecting piece 23 interference is pegged graft in connecting hole 11.
Wherein, 1 length direction of top cap body is the same with 2 length direction of plastic part, and 1 thickness direction of top cap body is the same with 2 thickness direction of plastic part, and 1 width direction of top cap body is the same with 2 width direction of plastic part. Referring to fig. 3 and 4, in the drawings, the X direction is the width direction of the top cap body 1 or the width direction of the plastic part 2, the Y direction is the length direction of the top cap body 1 or the length direction of the plastic part 2, and the Z direction is the thickness direction of the top cap body 1 or the thickness direction of the plastic part 2.
In this embodiment, the top cap body 1 is a smooth aluminum sheet, and the plastic part 2 is made of a PP material. It can be understood that the positive connecting part in the core package penetrates through the positive hole 21 of the plastic part 2 and then is connected with the positive terminal, the negative connecting part in the core package penetrates through the negative hole 22 of the plastic part 2 and then is connected with the negative terminal, and the positive terminal and the negative terminal on the top cover body 1 are respectively electrically connected with the external part, so that the charging and discharging of the core package are realized. The position that is located between anodal hole 21 and the negative pole hole 22 at plastic part 2 sets up connecting piece 23, pegs graft connecting hole 11 on top cap body 1 with connecting piece 23 interference, realizes plastic part 2 and top cap body 1's being connected, when convenient the equipment, also improves the reliability of top cap body 1 and plastic part 2 assembly. The casing all can make plastic part 2 take place deformation with the laser welding of top cap subassembly and soaking of electrolyte, and then make the middle part of plastic part 2 have the effort of downwarping, because connecting piece 23 is located between anodal hole 21 and the negative pole hole 22, and connecting piece 23 interference is pegged graft in connecting hole 11, 1 accessible connecting piece 23 of top cap body provides traction force for the middle part of plastic part 2, the middle part that effectively prevents plastic part 2 is crooked towards the core package direction, and then avoid leading to the core package to damage because of the plastic part 2 is crooked to the core package extrusion, be favorable to improving the security of core package.
Specifically, the connecting member 23 includes a connecting column 231 connected to the plastic part 2 and a connecting protrusion 232 located at an end of the connecting column 231 far away from the plastic part 2, and the connecting protrusion 232 is a semi-sphere structure. Wherein, the connecting convex part 232 with a semi-sphere structure is inserted in the connecting hole 11 in an interference manner. During specific assembly, peg graft and realize the preliminary location to plastic part 2 and top cap body 1 in connecting hole 11 with connecting piece 23, then rotate top cap body 1 around being the connection convex part 232 of semicircle ball structure again, make the mounted position of anodal terminal and negative terminal on the top cap body 1 just right with anodal hole 21 and negative pole hole 22 respectively, the realization is to the secondary location of top cap body 1, the equipment of being convenient for, and be favorable to improving the installation accuracy of top cap body 1 and plastic part 2.
Referring to fig. 4, in order to ensure a connection structure between the top cover body 1 and the plastic part 2 and maintain the stability of the top cover body 1, at least two connection members 23 are provided, and the at least two connection members 23 are spaced apart along the width direction of the plastic part 2. Set up a plurality of connecting pieces 23, every connecting piece 23 all corresponds there is connecting hole 11, and through pegging graft a plurality of connecting pieces 23 interference in the connecting hole 11 that corresponds, be favorable to dispersing the traction force of top cap body 1 to plastic part 2 in different connecting pieces 23. In the present embodiment, two connecting members 23 are provided. In other embodiments, the number of the connecting members 23 can be flexibly set according to actual needs, and the number of the connecting members 23 is not particularly limited.
In this embodiment, the plastic part 2 is recessed between the positive electrode hole 21 and the negative electrode hole 22 to form a vent groove 25, the vent groove 25 is penetrated by a vent hole 251, and the connecting part 23 is disposed at the bottom of the vent groove 25. The air in the core bag can be exhausted through the vent holes 251, so that explosion caused by internal faults of the core bag is avoided, and the safety of the core bag is improved. Set up connecting piece 23 in air channel 25, be favorable to optimizing the space on the plastic part 2, and prevent that connecting piece 23 protrusion from the too big assembly that influences top cap body 1 in the surface height of plastic part 2.
Specifically, the top cover body 1 is provided with an explosion-proof hole 14 penetrating opposite to the vent hole 251, and the explosion-proof hole 14 is provided with an explosion-proof valve (not shown in the figure). Preferably, the connecting pieces 23 are spaced apart from the explosion-proof holes 14. When a failure occurs inside the core bag, gas can be discharged from the explosion-proof valve.
Wherein, top cap body 1 has seted up notes liquid hole 15, and plastic part 2 is provided with through hole 28, annotates liquid hole 15 and passes through hole 28 and the inside intercommunication of core package.
In order to further reduce the possibility that the plastic part 2 is bent towards the core cladding direction, the thickness of the plastic part 2 is gradually reduced from the position of the connecting piece 23 towards the direction of the positive pole hole 21 or the negative pole hole 22, and the design ensures that the plastic part 2 is of a structure with thick middle and thin two ends along the length direction of the plastic part 2, so that the structural strength of the plastic part 2 is ensured.
In one embodiment, the plastic part 2 is respectively and concavely provided with a first mounting groove 26 and a second mounting groove 29 which are distributed at intervals, the bottom of the first mounting groove 26 is provided with a positive pole hole 21, the bottom of the second mounting groove 29 is provided with a negative pole hole 22, and the top cover body 1 is respectively and concavely provided with a positive pole terminal mounting groove 12 and a negative pole terminal mounting groove 13. The positive terminal mounting groove 12 is just right with the first mounting groove 26, and the negative terminal mounting groove 13 is just right with the second mounting groove 29, and the tank bottom of positive terminal mounting groove 12 and the tank bottom of negative terminal mounting groove 13 all bulge towards one side of plastic part 2, form the bulge, and first through-hole 16 has been seted up in running through to the tank bottom of positive terminal mounting groove 12, and the second through-hole 17 has been seted up in running through to the tank bottom of negative terminal mounting groove 13. The tank bottom of positive terminal mounting groove 12 and the tank bottom of negative terminal mounting groove 13 all set up towards the protrusion of one side of plastic part 2, can directly correspond the bulge and place in first mounting groove 26 and second mounting groove 29 when specifically assembling, be convenient for fix a position top cap body 1. During actual assembly, after top cap body 1 and 2 location completions of plastic part, utilize the rivet to rivet top cap body 1 and 2 riveting of plastic part, guarantee top cap body 1 and 2 fixed connection of plastic part. The positive terminal and the negative terminal are respectively arranged in the first mounting groove 26 and the second mounting groove 29, and the positive terminal and the negative terminal are welded with the groove bottom of the first mounting groove 26 and the groove bottom of the second mounting groove 29, so that the positive terminal and the negative terminal are respectively connected with the top cover body 1. The positive connecting part inside the core bag sequentially penetrates through the positive hole 21 and the first through hole 16 and then is connected with the positive terminal, and the negative connecting part inside the core bag sequentially penetrates through the negative hole 22 and the second through hole 17 and then is connected with the negative terminal.
In a preferred embodiment, the plastic part 2 is provided with a corrugated structure 24 between the positive electrode hole 21 and the connecting member 23 and between the negative electrode hole 22 and the connecting member 23, and the corrugated structure 24 extends along the length direction of the plastic part 2. Corrugated structure 24 can weaken and cushion the crooked effort of plastic part 2 towards the core package direction, weakens connecting piece 23's atress, further avoids plastic part 2 towards the crooked possibility of core package direction, guarantees top cap assembly's reliability.
In other embodiments, the corrugated structure 24 may be disposed only between the plastic part 2 and the positive electrode hole 21 or only between the negative electrode hole 22 and the connecting member 23.
Specifically, referring to fig. 5, the corrugated structure 24 includes a plurality of concave arc portions 241 and a plurality of convex arc portions 242, all the concave arc portions 241 and all the convex arc portions 242 are distributed along the length direction of the plastic part 2, and the concave arc portions 241 are connected with the convex arc portions 242 in a staggered manner. The corrugated structure 24 composed of the plurality of concave arc portions 241 and the plurality of convex arc portions 242 has the characteristics of good buffering effect and high structural strength. In other embodiments, the corrugated structure 24 may further include a plurality of concave portions and a plurality of convex portions, all of the concave portions and all of the convex portions are distributed along the length direction of the plastic member 2, and the concave portions and the convex portions are connected in an interlaced manner, and the structure of the corrugated structure 24 is not particularly limited herein.
Referring to fig. 4, in order to assemble the top cover assembly and the housing, the side of the plastic part 2 in the thickness direction is provided with a fastening hole 27 for fastening the fastening protrusion on the housing, so that the top cover assembly can be positioned conveniently.
In another embodiment, a battery cell is further provided, which includes the top cap assembly in any one of the above embodiments, and the battery cell has good safety and high reliability.
In another embodiment, a battery pack is further provided, which includes the battery cells in any one of the above embodiments, and the battery pack has the characteristics of good safety and high reliability.
It should be noted that the battery module in this embodiment may be a pouch battery module or a rigid battery module, and no specific limitation is imposed on the type of the battery module.
In the description herein, it is to be understood that the terms "upper," "lower," "left," "right," and the like are used in an orientation or positional relationship based on what is shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. The utility model provides a battery top cap subassembly for will hold the casing of core package and seal, its characterized in that, including top cap body and insulating plastic part, the plastic part sets up the top cap body orientation a side of core package, be provided with anodal terminal and negative terminal on the top cap body respectively, anodal terminal with the negative terminal along top cap body length direction interval distribution, the plastic part corresponds anodal hole has been seted up to anodal terminal, the plastic part corresponds negative terminal has seted up the negative pole hole, the plastic part orientation a side protrusion of top cap body is provided with the connecting piece, the connecting piece is located anodal hole with between the negative pole hole, the connecting hole has been seted up to the top cap body, the connecting piece interference is pegged graft in the connecting hole.
2. The battery top cap assembly of claim 1, wherein the connecting member comprises a connecting post connected to the plastic part and a connecting protrusion located at an end of the connecting post away from the plastic part, the connecting protrusion having a semi-spherical structure.
3. The battery top cap assembly of claim 1, wherein the connecting members are at least two, and at least two of the connecting members are spaced apart along the width of the plastic member.
4. The battery top cap assembly of claim 1, wherein a vent groove is concavely formed between the positive electrode hole and the negative electrode hole, a vent hole is formed through the vent groove, and the connecting member is disposed at the bottom of the vent groove.
5. The battery top cap assembly of claim 1, wherein the plastic part has a thickness that gradually decreases from the position of the connecting member toward the positive electrode hole or the negative electrode hole.
6. The battery top cap assembly of claim 1, wherein the plastic part is recessed with a first mounting groove and a second mounting groove spaced apart from each other, the bottom of the first mounting groove is provided with the positive electrode hole, the bottom of the second mounting groove is provided with the negative electrode hole, the top cap body is recessed with a positive electrode terminal mounting groove and a negative electrode terminal mounting groove, the positive electrode terminal mounting groove is aligned with the first mounting groove, the negative electrode terminal mounting groove is aligned with the second mounting groove, the bottom of the positive electrode terminal mounting groove and the bottom of the negative electrode terminal mounting groove both protrude toward one side of the plastic part to form a protrusion, the bottom of the positive electrode terminal mounting groove is provided with a first through hole, and the bottom of the negative electrode terminal mounting groove is provided with a second through hole.
7. The battery top cap assembly of claim 1, wherein the plastic member is provided with a corrugated structure between the positive electrode hole and the connecting member and/or between the negative electrode hole and the connecting member, the corrugated structure extending along a length direction of the plastic member.
8. The battery top cap assembly of claim 7, wherein the corrugated structure comprises a plurality of concave arc portions and a plurality of convex arc portions, all of the concave arc portions and all of the convex arc portions are distributed along a length direction of the plastic part, and the concave arc portions and the convex arc portions are connected in a staggered manner.
9. A battery cell comprising the cap assembly of any one of claims 1 to 8.
10. A battery pack comprising the battery cell of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022112795.9U CN213340535U (en) | 2020-09-23 | 2020-09-23 | Battery top cap subassembly, battery monomer and battery package |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022112795.9U CN213340535U (en) | 2020-09-23 | 2020-09-23 | Battery top cap subassembly, battery monomer and battery package |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213340535U true CN213340535U (en) | 2021-06-01 |
Family
ID=76066508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022112795.9U Active CN213340535U (en) | 2020-09-23 | 2020-09-23 | Battery top cap subassembly, battery monomer and battery package |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213340535U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114914591A (en) * | 2022-06-17 | 2022-08-16 | 湖北亿纬动力有限公司 | Battery cell |
| WO2024051064A1 (en) * | 2022-09-06 | 2024-03-14 | 欣旺达动力科技股份有限公司 | Top cover assembly and battery cell |
| WO2024098416A1 (en) * | 2022-11-11 | 2024-05-16 | 深圳海辰储能科技有限公司 | Lower plastic part, top cover assembly, energy storage apparatus, and electric device |
-
2020
- 2020-09-23 CN CN202022112795.9U patent/CN213340535U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114914591A (en) * | 2022-06-17 | 2022-08-16 | 湖北亿纬动力有限公司 | Battery cell |
| WO2024051064A1 (en) * | 2022-09-06 | 2024-03-14 | 欣旺达动力科技股份有限公司 | Top cover assembly and battery cell |
| WO2024098416A1 (en) * | 2022-11-11 | 2024-05-16 | 深圳海辰储能科技有限公司 | Lower plastic part, top cover assembly, energy storage apparatus, and electric device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213340535U (en) | Battery top cap subassembly, battery monomer and battery package | |
| KR20060010483A (en) | Secondary battery | |
| CN212392355U (en) | Battery, battery pack and automobile | |
| CN214898606U (en) | Single battery and battery module | |
| CN215896625U (en) | Battery with long battery core and battery module | |
| CN213905519U (en) | Square battery | |
| CN211980697U (en) | Support and battery module comprising same | |
| CN212587691U (en) | Electricity core subassembly, battery package and car | |
| CN219610594U (en) | Top cap subassembly and battery | |
| CN219476835U (en) | Battery and battery pack | |
| CN113764788A (en) | Electricity core subassembly, battery package and car | |
| CN219144439U (en) | Battery module and battery pack | |
| CN114824409A (en) | Battery cell, manufacturing method of battery cell, battery and electronic equipment | |
| CN113764787A (en) | Electricity core subassembly, battery package and car | |
| CN212011073U (en) | Battery and battery module | |
| CN219180737U (en) | Battery cell assembly, battery module and battery pack | |
| CN116073043B (en) | Positive electrode cover plate, battery core and assembly method | |
| CN215342882U (en) | Laminated lithium battery | |
| CN220914392U (en) | Square shell battery and battery cover plate | |
| WO2021233034A1 (en) | Battery, battery pack, and automobile | |
| CN220122057U (en) | Battery monomer and battery module | |
| CN220895645U (en) | Cylindrical aluminum shell battery | |
| CN220439739U (en) | Battery cell and battery | |
| CN218070137U (en) | Battery core, battery module and electric automobile | |
| CN217589351U (en) | Top cap subassembly and lithium cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |