CN205376627U - Secondary battery - Google Patents
Secondary battery Download PDFInfo
- Publication number
- CN205376627U CN205376627U CN201620146403.1U CN201620146403U CN205376627U CN 205376627 U CN205376627 U CN 205376627U CN 201620146403 U CN201620146403 U CN 201620146403U CN 205376627 U CN205376627 U CN 205376627U
- Authority
- CN
- China
- Prior art keywords
- connecting portion
- lug
- secondary cell
- top cover
- switching piece
- 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
- 238000005452 bending Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 abstract 2
- 210000005069 ears Anatomy 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000002372 labelling Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model provides a secondary battery, it includes top cap, a plurality of first ploe ear and switching piece. The top cap is equipped with the first ploe post. The polarity identical of a plurality of first ploe ears, and arrange along array orientation. The switching piece has: header connection portion, fixed and electricity is connected in the first ploe post of top cap, and a plurality of utmost point ear connecting portion, arrange that each utmost point ear connecting portion is buckled from header connection portion and is extended with fixed electric connection of the first ploe ear with corresponding along array orientation. In the basis the utility model discloses an among the secondary battery, a plurality of utmost point ear connecting portion of switching piece can be connected with the fixed electricity of the first ploe ear that corresponds, and the area of being connected guaranteeing each utmost point ear connecting portion and correspond the first ploe ear improves each extremely ear connecting portion and joint strength of corresponding the first ploe ear, prevent in secondary battery's use the first ploe ear and extremely ear coupling part improvement secondary battery's security performance leaves.
Description
Technical field
This utility model relates to field of batteries, particularly relates to a kind of secondary cell.
Background technology
Lithium-ion-power cell, because having the performance of a series of excellence, is widely used in electric automobiles.The security performance of lithium ion battery is particularly important.For avoiding inside battery heavy-current discharge to produce high temperature, destroying top cover, prior art arranges switching piece between top cover and battery core.Current existing connection sheet only one of which link, along with the growth to battery core capacity requirement, the course of processing need by multiple battery core Juxtaposition and Superimpositions, the battery core thickness stacked up increases, one switching piece to be connected with the lug of multiple battery cores, lug thickness is excessive, can cause welding, and the lug at switching piece place there will be uneven phenomenon in the process that lug is drawn close to centre, this results in weldering print in welding process and can not entirely fall within all of lug, cause that welding pulling force is not enough, car running process cause lug separate with switching piece, cause that battery core lost efficacy, on the other hand, owing to weldering print area reduces, weldering print place conveyance capacity is not enough, thus causing battery core overheated, affect the performance of battery core and use safety.It addition, in order to enable the fully wrapped around firmly lug of switching piece, it is necessary to the lug of battery core is lengthened, but the oversize meeting of lug causes the reduction of stock utilization in die cutting process, the phenomenon also lug turnup easily occur, crumpling.
Utility model content
In view of Problems existing in background technology, the purpose of this utility model is in that to provide a kind of secondary cell, and it can improve the bonding strength of multiple lug and switching piece, improves the security performance of secondary cell.
To achieve these goals, this utility model provides a kind of secondary cell, and it includes top cover, multiple first lug and switching piece.
Top cover is provided with the first pole.
The polarity of the plurality of first lug is identical and arranges along orientation.
Switching piece has: top cover connecting portion, fixes and be electrically connected to the first pole of top cover；And multiple lug connecting portion, to arrange along orientation, each lug connecting portion extends from the bending of top cover connecting portion and electrically connects with fixing with the first corresponding lug.
The beneficial effects of the utility model are as follows:
According in secondary cell of the present utility model, multiple lug connecting portions of switching piece can fixing with the first corresponding lug electrically connect, ensure the connection area of each lug connecting portion and corresponding first lug, improve the bonding strength of each lug connecting portion and corresponding first lug, prevent in the use procedure of secondary cell the first lug and lug coupling part from, improve the security performance of secondary cell.
Accompanying drawing explanation
Fig. 1 is the axonometric chart according to secondary cell of the present utility model；
Fig. 2 is the front view of Fig. 1；
Fig. 3 is the axonometric chart of an embodiment of the switching piece according to secondary cell of the present utility model；
Fig. 4 is the front view of Fig. 3；
Fig. 5 is the axonometric chart of another embodiment of the switching piece according to secondary cell of the present utility model；
Fig. 6 is the front view of Fig. 5.
Wherein, description of reference numerals is as follows:
1 top cover 321 clip slot
11 first pole 33 connecting portions between two parties
2 first lug 331 perforates
The 3 naked battery cores of switching piece 4
31 top cover connecting portion D orientations
32 lug connecting portions
Detailed description of the invention
Describe secondary cell of the present utility model with reference to the accompanying drawings in detail.
Referring to figs. 1 through Fig. 6, include top cover 1, multiple first lug 2 and switching piece 3 according to secondary cell of the present utility model.
Top cover 1 is provided with the first pole 11.
The polarity of the plurality of first lug 2 is identical and arranges along orientation D.
Switching piece 3 has: top cover connecting portion 31, fixes and be electrically connected to the first pole 11 of top cover 1；And multiple lug connecting portion 32, to arrange along orientation D, each lug connecting portion 32 extends from top cover connecting portion 31 bending and electrically connects with fixing with corresponding the first lug 2.
According in secondary cell of the present utility model, multiple lug connecting portions 32 of switching piece 3 can with the first corresponding fixing electrical connection of lug 2, ensure the connection area of each lug connecting portion 32 and corresponding first lug 2, improve the bonding strength of each lug connecting portion 32 and corresponding first lug 2, prevent the first lug 2 in the use procedure of secondary cell from separating with lug connecting portion 32, improve the security performance of secondary cell.According in secondary cell of the present utility model, in one embodiment, described secondary cell also includes: multiple naked battery cores 4, identical with the quantity of the first lug 2, and each naked battery core 4 and corresponding first lug 2 fix electrical connection.
According in secondary cell of the present utility model, in one embodiment, described secondary cell also includes: a naked battery core 4, fixes electrically connecting with multiple first lugs 2.
According in secondary cell of the present utility model, in one embodiment, described secondary cell also includes: multiple naked battery cores 4, and wherein, a naked battery core 4 and one or several corresponding first lug 2 fix electrical connection.
According in secondary cell of the present utility model, in one embodiment, the first lug 2 is positive pole ear or negative lug.Accordingly, the polarity of the first pole 11 is identical with the polarity of the first lug 2.In other words, first lug 2 is applicable to the lug as positive pole, it is readily adaptable for use in the lug as negative pole, first pole 11 is applicable to Positive Poles, it is readily adaptable for use in negative pole pole, therefore in fig. 1 and 2, the lug as positive pole of the both sides, top of naked battery core 4 and the lug as negative pole all adopt same accompanying drawing labelling 2 to represent, above top cover 1, the Positive Poles of both sides and negative pole pole all adopt same accompanying drawing labelling 11 to represent.
According in secondary cell of the present utility model, in one embodiment, top cover connecting portion 31 is welded in the first pole 11 of top cover 1.
According in secondary cell of the present utility model, in one embodiment, each lug connecting portion 32 is welded in the first lug 2 of correspondence.
According in secondary cell of the present utility model, with reference to Fig. 3 to Fig. 6, in one embodiment, each lug connecting portion 32 has: clip slot 321, and clamping also fixes electrical connection with the first corresponding lug 2.The first corresponding lug 2 is clamped in clip slot 321, then via being fixedly welded in clip slot 321, so can improve the bonding strength of lug connecting portion 32 and corresponding first lug 2.
According in secondary cell of the present utility model, in one embodiment, the width of lug connecting portion 32 is more than the width of the first corresponding lug 2.Which ensure that the bonding area of the first lug 2 and lug connecting portion 32, and improve the weld strength of the first lug 2 and lug connecting portion 32.
According in secondary cell of the present utility model, in one embodiment, switching piece 3 is formed by M shell conductive sheet, and M is the integer equal to or more than 1.
According in secondary cell of the present utility model, in one embodiment, the middle part of every layer of conducting strip is welded together to form top cover connecting portion 31, and the two ends of every layer of conducting strip form lug connecting portion 32.
According in secondary cell of the present utility model, in one embodiment, lug connecting portion 32 bends to naked battery core 4, to fix electrical connection with the first corresponding lug 2.
According in secondary cell of the present utility model, in one embodiment, lug connecting portion 32 is folded between top cover 1 and naked battery core 4.The folding height that can reduce between top cover 1 and naked battery core 4 of lug connecting portion 32, increases battery energy density.
According in secondary cell of the present utility model, in one embodiment, M is even number, and the length of every layer of conducting strip is sequentially reduced from the top down, the middle part of every layer of conducting strip is welded together to form top cover connecting portion 31, and the two ends of every layer of conducting strip are bent to form downwards lug connecting portion 32.
According in secondary cell of the present utility model, in one embodiment, M is odd number, in the conducting strip of M-1 layer, the length of each layer conducting strip is sequentially reduced from the top down, the middle part of every layer of conducting strip is welded together to form the top cover connecting portion 31 of switching piece 3, and the two ends of every layer of conducting strip are bent to form downwards lug connecting portion 32.Accordingly, remaining one layer of conducting strip one end is fixed on the lower section of the top cover connecting portion 31 of the conducting strip formation of described M-1 layer, and the other end bends downwards the lug connecting portion 32 to be formed；Or remaining one layer of conducting strip one end is fixed on the top of the top cover connecting portion 31 that the conducting strip of described M-1 layer is formed, the other end bends downwards to form lug connecting portion 32.
According in secondary cell of the present utility model, in one embodiment, M is even number, every two-layer conducting strip is one group, and the length of the conducting strip often organized is identical, and the length often organizing conducting strip is sequentially reduced from the top down, the middle part of each group welds together, to form the top cover connecting portion 31 of switching piece 3, the two ends of two conducting strips often organized are bent to form downwards lug connecting portion 32, and the gap between conducting strip forms clip slot 321.
According in secondary cell of the present utility model, in one embodiment, M is odd number, and ground floor conducting strip is first group, and remaining M-1 layer conducting strip is equally divided into M-1/2 group；In described M-1/2 group, the length of the conducting strip often organized is identical, and the length respectively organizing conducting strip is sequentially reduced from the top down, the middle part of two conducting strips often organized is welded together to form the top cover connecting portion 31 of switching piece 3, the two ends of two conducting strips often organized are bent to form downwards lug connecting portion 32, and the gap between the conducting strip that two ends are not welded forms clip slot 321.Accordingly, the conducting strip of first group is from middle doubling, and connected one end is fixed on the lower section of the top cover connecting portion 31 that described M-1/2 group is formed, and one end separately forms the lug connecting portion 32 with clip slot 321；Or the conducting strip of first group is from middle doubling, connected one end is fixed on the top of the top cover connecting portion 31 that described M-1/2 group is formed, and one end separately is bent to form downwards the lug connecting portion 32 with clip slot 321.
According in secondary cell of the present utility model, in one embodiment, each layer of conducting strip of described M shell conducting strip has multiple layer metal foil-shaped to become.
According in secondary cell of the present utility model, in one embodiment, switching piece 3 is one-body molded.
According in secondary cell of the present utility model, referring to figs. 1 through Fig. 6, in one embodiment, switching piece 3 also has: multiple connecting portion 33 between two parties, it is arranged between lug connecting portion 32 and the top cover connecting portion 31 of correspondence, making each lug connecting portion 32 extend to fix electrical connection with the first corresponding lug 2 from top cover connecting portion 31 via the bending of connecting portion 33 between two parties, the cross-sectional area of connecting portion 33 is less than lug connecting portion 32 between two parties.Owing to the cross-sectional area of connecting portion 33 between two parties is less than corresponding lug connecting portion 32; so when stream crossed by secondary cell, between two parties connecting portion 33 due to cross-sectional area little, unit are fusing that is rapidly heated by electric current is relatively big; and then protection circuit, improve the security performance of secondary cell.
According in secondary cell of the present utility model, in one embodiment, connecting portion 33 is provided with perforate 331 between two parties.Perforate 331 can reduce the cross-sectional area of connecting portion 33 between two parties further; therefore the connecting portion between two parties 33 of perforate 331 it is provided with while ensureing top cover connecting portion 31 and the bonding strength of lug connecting portion 32; reduce the cross-sectional area of connecting portion 33 between two parties; it is easy to the fusing that is rapidly heated of connecting portion 33 between two parties; and then protection circuit, improve the security performance of secondary cell.
According in secondary cell of the present utility model, in one embodiment, perforate 331 is square hole, circular hole, elliptical aperture, trapezoidal hole or tri-angle-holed.
According in secondary cell of the present utility model, in one embodiment, switching piece 3 is made up of aluminium flake or copper sheet.
According in secondary cell of the present utility model, in one embodiment, the thickness of switching piece 3 is 0.2mm～1.2mm.
Claims (10)
1. a secondary cell, including:
Top cover (1), is provided with the first pole (11)；
Multiple first lugs (2), polarity is identical, arranges along orientation (D)；And
Switching piece (3)；
It is characterized in that,
Switching piece (3) has:
Top cover connecting portion (31), fixes and is electrically connected to first pole (11) of top cover (1)；And
Multiple lug connecting portions (32), arrange along orientation (D), and each lug connecting portion (32) extends from top cover connecting portion (31) bending with electrical connection fixing with corresponding the first lug (2).
2. secondary cell according to claim 1, it is characterised in that described secondary cell also includes:
Multiple naked battery cores (4), identical with the quantity of the first lug (2), and each naked battery core (4) electrical connection fixing with corresponding first lug (2)；Or
One naked battery core (4), fixes with multiple first lugs (2) and electrically connects；Or
Multiple naked battery cores (4), wherein, naked battery core (4) electrical connection fixing with one or several corresponding first lug (2).
3. secondary cell according to claim 1, it is characterised in that each lug connecting portion (32) has:
Clip slot (321), clamping electrical connection fixing with corresponding the first lug (2).
4. secondary cell according to claim 1, it is characterised in that the width of lug connecting portion (32) is more than the width of corresponding the first lug (2).
5. the secondary cell according to claim 1 or 3, it is characterised in that switching piece (3) is formed by M shell conductive sheet, wherein M is the integer equal to or more than 1.
6. secondary cell according to claim 5, it is characterised in that the middle part of every layer of conducting strip is welded together to form top cover connecting portion (31), the two ends of every layer of conducting strip form lug connecting portion (32).
7. secondary cell according to claim 6, it is characterised in that lug connecting portion (32) bends to naked battery core (4), with electrical connection fixing with corresponding the first lug (2).
8. secondary cell according to claim 7, it is characterised in that lug connecting portion (32) is folded between top cover (1) and naked battery core (4).
9. secondary cell according to claim 1, it is characterised in that switching piece (3) also has:
Multiple connecting portions between two parties (33), it is arranged between lug connecting portion (32) and the top cover connecting portion (31) of correspondence, making each lug connecting portion (32) extend with electrical connection fixing with corresponding the first lug (2) from top cover connecting portion (31) via connecting portion between two parties (33) bending, the cross-sectional area of connecting portion (33) is less than lug connecting portion (32) between two parties.
10. secondary cell according to claim 9, it is characterised in that connecting portion (33) is provided with perforate (331) between two parties.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620146403.1U CN205376627U (en) | 2016-02-26 | 2016-02-26 | Secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620146403.1U CN205376627U (en) | 2016-02-26 | 2016-02-26 | Secondary battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205376627U true CN205376627U (en) | 2016-07-06 |
Family
ID=56271330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620146403.1U Active CN205376627U (en) | 2016-02-26 | 2016-02-26 | Secondary battery |
Country Status (1)
| Country | Link |
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| CN (1) | CN205376627U (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106099020A (en) * | 2016-08-24 | 2016-11-09 | 宁德时代新能源科技股份有限公司 | Soft package battery pack |
| CN107799712A (en) * | 2016-09-06 | 2018-03-13 | 丁朝阳 | Secondary battery |
| WO2018062231A1 (en) * | 2016-09-30 | 2018-04-05 | 日立オートモティブシステムズ株式会社 | Square-shaped secondary battery |
| EP3331063A1 (en) * | 2016-12-02 | 2018-06-06 | Contemporary Amperex Technology Co., Limited | Secondary battery and assembly therefor |
| EP3331052A1 (en) * | 2016-12-02 | 2018-06-06 | Contemporary Amperex Technology Co., Limited | Secondary battery |
| CN108155335A (en) * | 2016-12-02 | 2018-06-12 | 宁德时代新能源科技股份有限公司 | assembly for secondary battery |
| CN108428847A (en) * | 2017-04-07 | 2018-08-21 | 宁德时代新能源科技股份有限公司 | Secondary battery |
| CN109244348A (en) * | 2018-09-14 | 2019-01-18 | 湖北金泉新材料有限责任公司 | A kind of battery assembly technology and assembly device |
| CN109478694A (en) * | 2016-08-01 | 2019-03-15 | 三星Sdi株式会社 | rechargeable battery |
| CN109698309A (en) * | 2018-12-28 | 2019-04-30 | 蜂巢能源科技有限公司 | Lithium ion battery, vehicle, lithium ion battery assemble method |
| CN109698385A (en) * | 2017-10-20 | 2019-04-30 | 宁德时代新能源科技股份有限公司 | Secondary battery |
| WO2019083230A3 (en) * | 2017-10-23 | 2019-06-20 | 주식회사 엘지화학 | Secondary battery |
| CN110212147A (en) * | 2019-05-30 | 2019-09-06 | 常州瑞德丰精密技术有限公司 | Tab formula cap structure |
| CN113644356A (en) * | 2021-07-28 | 2021-11-12 | 东莞塔菲尔新能源科技有限公司 | Utmost point ear connection structure and battery of battery top cap |
| CN114824675A (en) * | 2022-05-20 | 2022-07-29 | 瑞浦兰钧能源股份有限公司 | Battery cell switching piece and welding method thereof |
| CN115020883A (en) * | 2022-04-22 | 2022-09-06 | 远景动力技术(江苏)有限公司 | Battery and method for manufacturing same |
| CN115020923A (en) * | 2022-04-22 | 2022-09-06 | 远景动力技术(江苏)有限公司 | Battery and method for manufacturing same |
-
2016
- 2016-02-26 CN CN201620146403.1U patent/CN205376627U/en active Active
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| EP3493319A4 (en) * | 2016-08-01 | 2020-04-15 | Samsung SDI Co., Ltd. | SECONDARY BATTERY |
| CN109478694A (en) * | 2016-08-01 | 2019-03-15 | 三星Sdi株式会社 | rechargeable battery |
| CN106099020A (en) * | 2016-08-24 | 2016-11-09 | 宁德时代新能源科技股份有限公司 | Soft package battery pack |
| CN107799712A (en) * | 2016-09-06 | 2018-03-13 | 丁朝阳 | Secondary battery |
| WO2018062231A1 (en) * | 2016-09-30 | 2018-04-05 | 日立オートモティブシステムズ株式会社 | Square-shaped secondary battery |
| CN112886154A (en) * | 2016-12-02 | 2021-06-01 | 宁德时代新能源科技股份有限公司 | Secondary battery and assembly for secondary battery |
| EP3331063A1 (en) * | 2016-12-02 | 2018-06-06 | Contemporary Amperex Technology Co., Limited | Secondary battery and assembly therefor |
| CN108155334A (en) * | 2016-12-02 | 2018-06-12 | 宁德时代新能源科技股份有限公司 | Secondary battery |
| CN108155335A (en) * | 2016-12-02 | 2018-06-12 | 宁德时代新能源科技股份有限公司 | assembly for secondary battery |
| US11296391B2 (en) | 2016-12-02 | 2022-04-05 | Contemporary Amperex Technology Co., Limited | Secondary battery and assembly therefor |
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| CN108155335B (en) * | 2016-12-02 | 2021-02-12 | 宁德时代新能源科技股份有限公司 | Assembly for secondary battery |
| US11557816B2 (en) | 2016-12-02 | 2023-01-17 | Contemporary Amperex Technology Co., Limited | Secondary battery |
| CN108428847A (en) * | 2017-04-07 | 2018-08-21 | 宁德时代新能源科技股份有限公司 | Secondary battery |
| CN108428847B (en) * | 2017-04-07 | 2023-08-29 | 宁德时代新能源科技股份有限公司 | secondary battery |
| CN109698385A (en) * | 2017-10-20 | 2019-04-30 | 宁德时代新能源科技股份有限公司 | Secondary battery |
| WO2019083230A3 (en) * | 2017-10-23 | 2019-06-20 | 주식회사 엘지화학 | Secondary battery |
| US12191510B2 (en) | 2017-10-23 | 2025-01-07 | Lg Energy Solution, Ltd. | Rechargeable battery |
| CN109244348A (en) * | 2018-09-14 | 2019-01-18 | 湖北金泉新材料有限责任公司 | A kind of battery assembly technology and assembly device |
| CN109244348B (en) * | 2018-09-14 | 2021-11-23 | 湖北亿纬动力有限公司 | Battery assembly process and assembly device |
| CN109698309B (en) * | 2018-12-28 | 2022-07-08 | 蜂巢能源科技有限公司 | Lithium ion battery, vehicle and lithium ion battery assembling method |
| CN109698309A (en) * | 2018-12-28 | 2019-04-30 | 蜂巢能源科技有限公司 | Lithium ion battery, vehicle, lithium ion battery assemble method |
| CN110212147A (en) * | 2019-05-30 | 2019-09-06 | 常州瑞德丰精密技术有限公司 | Tab formula cap structure |
| CN110212147B (en) * | 2019-05-30 | 2024-02-13 | 常州瑞德丰精密技术有限公司 | Lug type top cover structure |
| CN113644356A (en) * | 2021-07-28 | 2021-11-12 | 东莞塔菲尔新能源科技有限公司 | Utmost point ear connection structure and battery of battery top cap |
| CN115020883A (en) * | 2022-04-22 | 2022-09-06 | 远景动力技术(江苏)有限公司 | Battery and method for manufacturing same |
| CN115020923A (en) * | 2022-04-22 | 2022-09-06 | 远景动力技术(江苏)有限公司 | Battery and method for manufacturing same |
| CN114824675A (en) * | 2022-05-20 | 2022-07-29 | 瑞浦兰钧能源股份有限公司 | Battery cell switching piece and welding method thereof |
| CN114824675B (en) * | 2022-05-20 | 2024-07-19 | 瑞浦兰钧能源股份有限公司 | Battery cell switching piece and welding method thereof |
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