CN214013033U - Battery cover plate and battery - Google Patents
Battery cover plate and battery Download PDFInfo
- Publication number
- CN214013033U CN214013033U CN202023280167.8U CN202023280167U CN214013033U CN 214013033 U CN214013033 U CN 214013033U CN 202023280167 U CN202023280167 U CN 202023280167U CN 214013033 U CN214013033 U CN 214013033U
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- cover plate
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- 238000003466 welding Methods 0.000 claims abstract description 62
- 238000004804 winding Methods 0.000 claims description 15
- 230000006872 improvement Effects 0.000 abstract description 5
- 206010033101 Otorrhoea Diseases 0.000 abstract description 4
- 210000005069 ears Anatomy 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 239000008358 core component Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
-
- 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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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a battery cover plate and battery, including the apron body, be provided with a plurality of on the terminal surface of apron body and weld the position recess, the apron body is provided with the back of the position of welding the position recess and rolls up the utmost point ear contact on the core subassembly, external electric welding part can stretch into in welding the position recess and weld the ground contact of position recess, the setting of welding the position recess makes the thickness attenuation of apron body in this position, electric welding part arouses apron body to utmost point ear discharge and generate heat, make utmost point ear and apron body weld together, this design is through the improvement to apron body structure, satisfy under the battery cover plate safety requirement prerequisite, novel welding mode is provided, and the welding is firm, and easy operation.
Description
Technical Field
The utility model relates to a battery manufacturing technical field, in particular to battery cover plate and battery.
Background
The battery body generally comprises a shell, a winding core assembly and a battery cover plate, wherein the shell is connected with the battery cover plate to form an inner cavity for accommodating the winding core assembly, a lug is led out of the winding core assembly and needs to be in conductive connection with the battery cover plate, in the traditional battery manufacturing process, the lug of the winding core assembly needs to be welded with the battery cover plate, then, a winding core component is installed in the shell, the battery cover plate is connected with the shell, and the winding core component is connected with the battery cover plate, so that the assembly is troublesome due to the fact that the winding core component is mutually connected with the battery cover plate, and the disconnection condition of a contact part occurs under the condition of assembly force application.
And in the welding process, a heat conduction welding mode can be carried out, the lug is in contact with one end face of the plate, the electric welding equipment is in contact with the corresponding position of the other end face of the plate, and the lug and the plate are subjected to fusion welding through the plate discharge heat conduction. However, in the battery field, parameters such as the thickness of each component are strictly limited, so that the safety specification requirements can be met, similarly, the battery cover plate is no exception, if the thickness of the battery cover plate needs to meet the safety specification requirements, the thickness of the battery cover plate is relatively thick, when the discharge heat conduction welding mode is adopted, the thickness does not necessarily meet the welding requirements, and the welding is not firm or cannot be welded easily.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a battery apron reduces battery cover plate thickness at a plurality of welded position, satisfies under the battery apron safety requirement prerequisite, can realize welding operation.
The utility model discloses still provide a battery, under satisfying the battery safety requirement prerequisite, can realize welding operation for the battery apron is firm with the inner member welding.
According to the utility model discloses a battery apron of first aspect embodiment, including the apron body, be provided with a plurality of on the terminal surface of apron body and weld a recess.
According to the utility model discloses battery apron has following beneficial effect at least:
the utility model discloses battery cover plate, can be provided with the back of the position of welding the position recess with the utmost point ear contact on the roll core subassembly with the apron body during the welding, external electric welding part can stretch into weld in the position recess with the ground contact of welding the position recess, the setting up of welding the position recess makes the thickness attenuation of apron body in this position, but other thickness invariance of apron body, still can satisfy the ann rule requirement of battery, and the position attenuation of welding the position recess, electric welding part arouses the apron body to utmost point ear discharge and generate heat, make utmost point ear and apron body weld together, this design is through the improvement to apron body structure, satisfy under the battery cover plate safety requirement prerequisite, novel welding mode is provided, and the welding is firm, and is easy to operate.
According to the utility model discloses a some embodiments, the apron body is being provided with the back of welding the terminal surface of position recess is provided with a plurality of and welds the position bump, weld the position bump with it is just right to weld the position recess.
According to some embodiments of the utility model, one weld the position recess with a plurality of weld the position bump just right.
According to some embodiments of the invention, the weld site protrusions are tapered.
According to the utility model discloses a some embodiments, weld the position recess and have a plurality ofly, a plurality of weld the position recess around forming a plurality of and weld the position ring.
According to the utility model discloses a battery of second aspect embodiment, including battery body, be provided with the battery apron that any above-mentioned embodiment disclosed on the battery body.
According to the utility model discloses battery has following beneficial effect at least:
the utility model discloses the battery, when manufacturing to the battery, can install each internal part (for example roll up core assembly) in the battery originally internally, then use the electric welding part to weld the position groove department that welds of apron body and electrically weld the operation, can make internal part and apron body weld together, this design is through the improvement to apron body structure, under the prerequisite of satisfying battery safety requirement, provides neotype welding mode to the welding is firm, easy operation.
According to the utility model discloses a some embodiments, this internal roll core assembly that is provided with of battery, roll up and be provided with a plurality of utmost point ear on the core assembly, utmost point ear with the apron body is being provided with weld the back welding of the terminal surface of position recess.
According to some embodiments of the present invention, there are two cover plate bodies, namely, a first cover plate body and a second cover plate body, wherein the first cover plate body is disposed at one end of the battery body, and the second cover plate body is disposed at the other end of the battery body, which is away from the first cover plate body; roll up the core subassembly and stack gradually and convolute by anodal diaphragm, first insulating film, negative pole diaphragm and second insulating film and form, utmost point ear includes anodal ear and negative pole ear, anodal ear with anodal diaphragm is connected and is extended to roll up outside the core subassembly, the negative pole ear with the negative pole diaphragm is connected and is extended to roll up outside the core subassembly, anodal ear with first apron body welding, the negative pole ear with second apron body welding.
According to the utility model discloses a some embodiments, anodal diaphragm the first insulating film the negative pole diaphragm with the second insulating film is convoluteed and is formed many rings, each circle it has a plurality of anodal ears to distribute on the anodal diaphragm, each circle it has a plurality of negative pole ears to distribute on the negative pole diaphragm.
According to some embodiments of the utility model, the battery body still includes the shell of tube-shape, first apron body with the one end of shell is connected and the second apron body with the other end of shell is connected in order to form the holding roll up core assembly's inner chamber, first apron body with be provided with first insulating part between the shell, the second apron body with be provided with second insulating part between the shell.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic perspective view of one embodiment of the battery of the present invention;
fig. 2 is a schematic perspective view of one embodiment of the battery cover plate of the present invention;
fig. 3 is a schematic cross-sectional view of one embodiment of the battery cover plate of the present invention;
fig. 4 is a schematic cross-sectional view of one embodiment of the battery of the present invention;
fig. 5 is a schematic structural diagram of a winding core assembly according to one embodiment of the present invention.
Reference numerals:
the battery comprises a battery body 100, a shell 200, a first cover plate body 300, a second cover plate body 400, a welding position groove 510, a welding position salient point 520, a winding core assembly 600, a positive electrode diaphragm 610, a first insulating film 620, a negative electrode diaphragm 630, a second insulating film 640, a positive electrode tab 650, a negative electrode tab 660, a first insulating part 700 and a second insulating part 800.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the orientation description, such as the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., is the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplicity of description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 4, a battery cover plate according to an embodiment of the present invention includes a cover plate body, and a plurality of welding grooves 510 are disposed on a terminal surface of the cover plate body.
The utility model discloses battery cover plate, can be provided with the back that welds the position of position recess 510 during the welding and the utmost point ear contact on rolling up core assembly 600 with the apron body, external electric welding part can stretch into weld in the position recess 510 with the ground contact that welds position recess 510, the setting that welds position recess 510 makes the thickness attenuation of apron body in this position, but other thickness invariance of apron body, still can satisfy the ann rule requirement of battery, and weld the position attenuation of position recess 510, electric welding part arouses the apron body to utmost point ear discharge and generate heat, make utmost point ear and apron body weld together, this design is through the improvement to apron body structure, under the prerequisite of satisfying battery cover plate safety requirement, novel welding mode is provided, and the welding is firm, and is easy to operate.
The utility model discloses an in some embodiments, outside article (for example utmost point ear) can with the wall welding of apron body, and the utility model discloses an in some embodiments, as shown in fig. 2, 3, the apron body is provided with a plurality of at the back that is provided with the terminal surface that welds position recess 510 and welds position bump 520, welds position bump 520 and welds position recess 510 just right, welds position bump 520 salient in the surface of apron body, be convenient for with utmost point ear contact, it is little to weld position bump 520 cross-sectional area simultaneously, can form point discharge, be heated and form the molten state easily in order to weld with utmost point ear.
The utility model discloses an in some embodiments, one welds position recess 510 and a plurality of position bump 520 just right to can realize welding part and insert one and weld position recess 510 time, can make should weld a plurality of position bumps 520 that weld near position recess 510 contrast and generate heat to utmost point ear discharge, thereby weld with utmost point ear, make to connect more firmly inseparable.
In some embodiments of the present invention, the solder bumps 520 are tapered to improve the effect of the point discharge.
The utility model discloses a some embodiments, weld the position recess 510 and have a plurality ofly, a plurality ofly weld the position recess 510 around forming a plurality of and weld the position ring, can draw forth a plurality of utmost point ears on rolling core assembly 600 to a plurality of utmost point ears are cyclic annular distribution, thereby weld position recess 510 can cooperate with the utmost point ear of each position.
A battery according to a second aspect of the present invention, as shown in fig. 1-4, includes a battery body 100, and a battery cover plate disclosed in any one of the above embodiments is disposed on the battery body 100.
A roll core assembly 600 is further arranged in the battery body 100, a plurality of tabs are arranged on the roll core assembly 600, and the tabs are welded with the back of the cover plate body at the end face provided with the welding groove 510.
The utility model discloses the battery, when manufacturing to the battery, can install each internal part (for example roll up core assembly 600) in battery body 100, then use the electric welding part to weld the operation of welding to the position recess 510 department that welds of apron body, can make internal part and apron body weld together, this design is through the improvement to apron body structure, under the prerequisite of satisfying the battery safety requirement, provides neotype welding mode to the welding is firm, easy operation.
In some embodiments of the present invention, as shown in fig. 4 and 5, there are two cover plates, which are the first cover plate 300 and the second cover plate 400, respectively, the first cover plate 300 is disposed at one end of the battery body 100, the second cover plate 400 is disposed at the other end of the battery body 100 deviating from the first cover plate 300, the winding core assembly 600 is formed by stacking and winding the positive electrode film 610, the first insulating film 620, the negative electrode film 630 and the second insulating film 640 in sequence, the tab includes the positive electrode tab 650 and the negative electrode tab 660, the positive electrode tab 650 is connected with the positive electrode film 610 and extends to the outside of the winding core assembly 600, the negative electrode tab 660 is connected with the negative electrode film 630 and extends to the outside of the winding core assembly 600, the positive electrode tab 650 is welded with the first cover plate 300, and the negative electrode tab 660 is welded with the second cover plate 400.
In some embodiments of the present invention, the positive membrane 610, the first insulating film 620, the negative membrane 630 and the second insulating film 640 are wound to form a plurality of circles, each circle of positive membrane 610 has a plurality of positive electrode tabs 650, each circle of negative membrane 630 has a plurality of negative electrode tabs 660, and the plurality of positive electrode tabs 650 and the plurality of negative electrode tabs 660 can reduce the internal resistance of the battery, thereby improving the energy conversion efficiency of the battery.
In some embodiments of the present invention, one of the positive electrode film 610 and the negative electrode film 630 protrudes upward from the whole core assembly 600, and the other protrudes downward from the whole core assembly 600, so as to form the positive electrode tab 650 and the negative electrode tab 660.
In some embodiments of the present invention, the battery body 100 further includes a cylindrical housing 200, the first cover plate 300 is connected to one end of the housing 200 and the second cover plate 400 is connected to the other end of the housing 200 to form an inner cavity for accommodating the winding core assembly 600, a first insulating member 700 is disposed between the first cover plate 300 and the housing 200, and a second insulating member 800 is disposed between the second cover plate 400 and the housing 200, wherein the first insulating member 700 and the second insulating member 800 may both adopt insulating rings made of organic rubber materials, a conductive connection structure (such as a thread or a buckle) may be disposed on the first cover plate 300 to connect with the second cover plate 400 on another battery body 100, thereby achieving series connection between the plurality of battery bodies 100, and the first insulating member 700 and the second insulating member 800 may achieve the first cover plate 300, The second cover body 400 and the housing 200 are short-circuited.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The battery cover plate is characterized by comprising a cover plate body, wherein a plurality of welding position grooves are formed in one end face of the cover plate body.
2. A battery cover plate according to claim 1, wherein: the back of the cover plate body, which is provided with the end face of the welding position groove, is provided with a plurality of welding position salient points, and the welding position salient points are right opposite to the welding position groove.
3. A battery cover plate according to claim 2, wherein: one welding position groove is opposite to the plurality of welding position salient points.
4. A battery cover plate according to claim 2, wherein: the welding position salient points are conical.
5. A battery cover plate according to claim 1, wherein: the welding position grooves are multiple, and the welding position grooves surround to form a plurality of welding position rings.
6. A battery comprising a battery body having a battery cover as claimed in any one of claims 1 to 5 disposed thereon.
7. A battery according to claim 6, wherein: this internal roll core assembly that is provided with of battery, be provided with a plurality of utmost point ear on the roll core assembly, utmost point ear with the apron body is being provided with weld the back welding of the terminal surface of position recess.
8. A battery according to claim 7, wherein: the battery cover comprises a battery body, a first cover plate body and a second cover plate body, wherein the number of the cover plate bodies is two, the first cover plate body and the second cover plate body are respectively a first cover plate body and a second cover plate body, the first cover plate body is arranged at one end of the battery body, and the second cover plate body is arranged at the other end, deviating from the first cover plate body, of the battery body; roll up the core subassembly and stack gradually and convolute by anodal diaphragm, first insulating film, negative pole diaphragm and second insulating film and form, utmost point ear includes anodal ear and negative pole ear, anodal ear with anodal diaphragm is connected and is extended to roll up outside the core subassembly, the negative pole ear with the negative pole diaphragm is connected and is extended to roll up outside the core subassembly, anodal ear with first apron body welding, the negative pole ear with second apron body welding.
9. A battery according to claim 8, wherein: the positive diaphragm, the first insulating film, the negative diaphragm and the second insulating film are wound to form a plurality of circles, a plurality of positive lugs are distributed on each circle of the positive diaphragm, and a plurality of negative lugs are distributed on each circle of the negative diaphragm.
10. A battery according to claim 8, wherein: the battery body further comprises a cylindrical shell, the first cover plate body is connected with one end of the shell, the second cover plate body is connected with the other end of the shell to form an inner cavity for containing the winding core assembly, a first insulating part is arranged between the first cover plate body and the shell, and a second insulating part is arranged between the second cover plate body and the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023280167.8U CN214013033U (en) | 2020-12-30 | 2020-12-30 | Battery cover plate and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023280167.8U CN214013033U (en) | 2020-12-30 | 2020-12-30 | Battery cover plate and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214013033U true CN214013033U (en) | 2021-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023280167.8U Active CN214013033U (en) | 2020-12-30 | 2020-12-30 | Battery cover plate and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214013033U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023050278A1 (en) * | 2021-09-30 | 2023-04-06 | 宁德时代新能源科技股份有限公司 | Battery cell and method and system for manufacturing same, and battery and electric device |
| WO2023050197A1 (en) * | 2021-09-29 | 2023-04-06 | 宁德时代新能源科技股份有限公司 | Battery cell and method and system for manufacturing same, and battery and electric device |
| CN116581489A (en) * | 2023-07-12 | 2023-08-11 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and energy storage system |
-
2020
- 2020-12-30 CN CN202023280167.8U patent/CN214013033U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023050197A1 (en) * | 2021-09-29 | 2023-04-06 | 宁德时代新能源科技股份有限公司 | Battery cell and method and system for manufacturing same, and battery and electric device |
| WO2023050278A1 (en) * | 2021-09-30 | 2023-04-06 | 宁德时代新能源科技股份有限公司 | Battery cell and method and system for manufacturing same, and battery and electric device |
| CN116581489A (en) * | 2023-07-12 | 2023-08-11 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and energy storage system |
| CN116581489B (en) * | 2023-07-12 | 2024-04-30 | 深圳海辰储能控制技术有限公司 | End cover assembly, energy storage device and energy storage system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220210 Address after: 528415 No.2, Yiheng street, Tailong West Road, Xiaolan Town, Zhongshan City, Guangdong Province Patentee after: Zhongshan Xiaowan Energy Technology Co.,Ltd. Address before: 528415 No.2, Yiheng street, Tailong West Road, Xiaolan Town, Zhongshan City, Guangdong Province Patentee before: Zhongshan Xiaowan Energy Technology Co.,Ltd. Patentee before: Lu Haijun Patentee before: Li Pengdong |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231102 Address after: Building B, No. 6 Fuyu Road, Jidongyi Community, Xiaolan Town, Zhongshan City, Guangdong Province, 528400 Patentee after: Guangdong Xinli Energy Co.,Ltd. Address before: 528415 No.2, Yiheng street, Tailong West Road, Xiaolan Town, Zhongshan City, Guangdong Province Patentee before: Zhongshan Xiaowan Energy Technology Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240712 Address after: One of the second floors of Building 1, No. 18 Kehong Road, Guicheng Street, Nanhai District, Foshan City, Guangdong Province 528251 Patentee after: Guangdong Guangte New Energy Co.,Ltd. Country or region after: China Address before: Building B, No. 6 Fuyu Road, Jidongyi Community, Xiaolan Town, Zhongshan City, Guangdong Province, 528400 Patentee before: Guangdong Xinli Energy Co.,Ltd. Country or region before: China |