CN112421155A - Battery and cover plate assembly thereof - Google Patents
Battery and cover plate assembly thereof Download PDFInfo
- Publication number
- CN112421155A CN112421155A CN201910716672.5A CN201910716672A CN112421155A CN 112421155 A CN112421155 A CN 112421155A CN 201910716672 A CN201910716672 A CN 201910716672A CN 112421155 A CN112421155 A CN 112421155A
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- Prior art keywords
- liquid injection
- cover plate
- plate assembly
- battery
- hole
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Filling, Topping-Up Batteries (AREA)
Abstract
The invention discloses a battery and a cover plate component thereof, wherein the cover plate component of the battery comprises: the cover plate is provided with a liquid injection hole; the insulating part, the insulating part is located the apron, the insulating part is constructed and is annotated the liquid structure, annotate the liquid structure have with annotate the notes cistern of liquid hole intercommunication, it has lateral wall and diapire to annotate the cistern, the lateral wall is equipped with the reposition of redundant personnel hole. The cover plate assembly of the battery provided by the embodiment of the invention has the advantages of high liquid injection efficiency, capability of ensuring the performance reliability of the battery, high production efficiency, low cost, high yield and the like.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a cover plate assembly of a battery and the battery with the cover plate assembly of the battery.
Background
After the assembly of the pole core in the shell of the lithium ion battery is completed, electrolyte needs to be filled into the lithium ion battery, the sealing nail is used for sealing the electrolyte filling hole, and for batteries with some structures, the pole lug does not have enough space for the electrolyte to flow into.
For example, for a large-capacity flat battery with an extremely small thickness and an extremely long length, in order to meet the demand of quick charging and reduce the process steps, the battery generally adopts a full tab and a laminated battery cell, the number of the battery cells is 1, but the full tab is bent to block a liquid injection hole, so that the liquid injection efficiency is low.
For the above situation, some batteries move the position of the liquid injection structure to the cover plate side, but the tab at the position is suspended and is easy to bend and break in the manufacturing process, so that the performance reliability of the battery is affected; some batteries avoid the problems by cutting the lugs, but the automatic lug cutting line has high operation difficulty, the production efficiency is reduced, the cost and the reject ratio are increased, and the metal dust cannot be guaranteed to be removed.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a cover plate assembly for a battery, which has the advantages of high liquid injection efficiency, reliable performance of the battery, high production efficiency, low cost, high yield, etc.
The invention also provides a battery with the cover plate assembly of the battery.
To achieve the above object, an embodiment according to a first aspect of the present invention provides a cover plate assembly for a battery, including: the cover plate is provided with a liquid injection hole; the insulating part, the insulating part is located the apron, the insulating part is constructed and is annotated the liquid structure, annotate the liquid structure have with annotate the notes cistern of liquid hole intercommunication, it has lateral wall and diapire to annotate the cistern, the lateral wall is equipped with the reposition of redundant personnel hole.
The cover plate assembly of the battery provided by the embodiment of the invention has the advantages of high liquid injection efficiency, capability of ensuring the performance reliability of the battery, high production efficiency, low cost, high yield and the like.
According to some specific embodiments of the invention, the insulation member is configured with a tab accommodation space, the bottom wall of the liquid injection groove faces the tab accommodation space, and the branch hole communicates the liquid injection groove and the tab accommodation space.
According to some embodiments of the present invention, the insulator is configured with a shunt space surrounding an outside of the liquid injection structure and communicating with the tab receiving space, and the shunt hole communicates with the tab receiving space through the shunt space.
According to some specific embodiments of the present invention, the number of the diversion holes is multiple, each of the diversion holes extends along an axial direction of the liquid injection structure, and the plurality of the diversion holes are arranged at intervals along a circumferential direction of the liquid injection structure.
According to some embodiments of the invention, the cross section of the liquid injection structure is circular, the opening of the liquid injection groove faces the liquid injection hole, the central axis of the liquid injection groove coincides with the central axis of the liquid injection hole, and the diameter of the liquid injection groove is not smaller than the diameter of the liquid injection hole.
According to some specific embodiments of the invention, a surface of the cover plate facing the insulating member is configured with a sunken platform and the sunken platform is arranged around the liquid injection hole, the insulating member is configured with a sunken groove and the sunken groove is arranged around the liquid injection structure, and the sunken platform is fitted in the sunken groove.
According to some embodiments of the invention, the bottom wall of the liquid injection groove is provided with a diversion hole.
According to some specific embodiments of the present invention, the side wall of the tab receiving space is provided with a splitter box, and the splitter box is communicated with the splitter hole.
Further, the shunt grooves are formed on two side walls of the tab receiving space, which are opposite to each other in the width direction of the insulating member.
Further, the diverter tank includes: a horizontal part extending in a length direction of a side wall of the tab receiving space; the vertical parts are arranged at intervals along the length direction of the horizontal part and are respectively communicated with the horizontal part.
Further, each flow dividing groove comprises two vertical parts, the two vertical parts are respectively arranged at two ends of the horizontal part, and one vertical part is arranged close to the liquid injection structure.
According to some embodiments of the invention, the insulator comprises: the insulating seat is arranged on the cover plate, and the liquid injection structure is formed by the insulating seat; the first side separator and the second side separator, the first side separator with the second side separator is located the insulator seat just is in relative in the width direction of insulator seat, utmost point ear accommodation space by the insulator seat first side separator with the second side separator constructs jointly.
An embodiment according to the second aspect of the invention proposes a battery comprising a cover plate assembly of a battery according to an embodiment of the first aspect of the invention.
According to the battery provided by the embodiment of the invention, the cover plate assembly of the battery provided by the embodiment of the first aspect of the invention has the advantages of high liquid injection efficiency, reliable performance, high production efficiency, low cost, high yield and the like.
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 structural view of a cap plate assembly of a battery according to an embodiment of the present invention.
Fig. 2 is a schematic view of the internal structure of a cap plate assembly of a battery according to an embodiment of the present invention.
Fig. 3 is a partial structural view of a cap plate assembly of a battery according to an embodiment of the present invention.
Fig. 4 is a schematic view of the internal structure of a cap plate assembly and tabs of a battery according to an embodiment of the present invention.
Fig. 5 is a longitudinal sectional view of a cap plate assembly and tabs of a battery according to an embodiment of the present invention.
Fig. 6 is a transverse cross-sectional view of a cover plate assembly and tabs of a battery according to an embodiment of the present invention.
Reference numerals:
a cover plate component 10 of the battery, a battery core 20, a tab 21,
A cover plate 100, a liquid injection hole 110, a sinking platform 120,
An insulating member 200, an insulating base 201, a first side partition 202, a second side partition 203,
The liquid injection structure 210, the liquid injection groove 211, the side wall 212, the bottom wall 213, the diversion hole 214, the diversion hole 215,
A tab receiving space 220, a protrusion 221,
A flow dividing space 230,
A sink 240,
A diversion channel 250, a horizontal part 251, a vertical part 252,
A pole 260, a lead-out piece 261,
Explosion proof valve 270.
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 or similar 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 accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. "plurality" means two or more, and "several" means one or more.
A battery according to an embodiment of the present invention is described below.
The battery according to the embodiment of the present invention includes a cap plate assembly 10 and a battery cell.
A cap plate assembly 10 for a battery according to an embodiment of the present invention will be described first with reference to the accompanying drawings.
As shown in fig. 1 to 6, a cap plate assembly 10 of a battery according to an embodiment of the present invention includes a cap plate 100 and an insulating member 200.
The lid plate 100 is provided with a pour hole 110. The insulating piece 200 is arranged on the cover plate 100 and used for insulating the cover plate 100, the insulating piece 200 is provided with a liquid injection structure 210, the liquid injection structure 210 is provided with a liquid injection groove 211 communicated with the liquid injection hole 110, the liquid injection groove 211 is provided with a bottom wall 213 and a side wall 212, the side wall 212 is connected with the bottom wall 213 and is arranged around the bottom wall 213, the side wall 212 and the bottom wall jointly define the liquid injection groove 211, and the side wall 212 is provided with a shunting hole 214.
In some embodiments of the present invention, the insulating member 200 may be further configured with a tab receiving space 220, the bottom wall 213 of the liquid injection groove 211 faces the tab receiving space 220, and the branch holes 214 on the side wall 212 communicate the liquid injection groove 211 and the tab receiving space 220.
In the battery according to the embodiment of the present invention, the battery cell 20 has the tab 21, and the tab 21 is accommodated in the tab accommodating space 220 and can be bent several times.
It will be understood by those skilled in the art that the battery according to the embodiment of the present invention further includes a casing or the like, which is not shown in the drawings, and after the battery cell 20 and the cover plate assembly 10 are installed in the casing, the electrolyte can be poured into the battery through the liquid pouring hole 110 and the liquid pouring structure 210, specifically, the electrolyte enters the liquid pouring groove 211 of the liquid pouring structure 210 from the liquid pouring hole 110 of the cover plate 100 and flows into the battery through the branch hole 214 on the side wall 212 of the liquid pouring groove 211.
The up-down direction in the drawings takes the placing direction of the battery when the electrolyte is poured as an example, and the battery can be placed in other ways in practical application.
According to the cover plate assembly 10 of the battery of the embodiment of the invention, the liquid injection structure 210 corresponding to the position of the liquid injection hole 110 is arranged on the insulating member 200, the liquid injection structure 210 is provided with the liquid injection groove 211, the side wall of the liquid injection groove 211 is provided with the branch flow hole 214, and the electrolyte can flow into the battery from the side part of the liquid injection structure 210 under the guidance of the branch flow hole 214, so that the liquid injection efficiency can be improved, and the cover plate assembly is suitable for batteries with various structures.
For example, for a flat battery with a narrow thickness and a long length, a laminated cell with a full tab is generally adopted, and the number of the cells is 1, and a "full tab" means that the tab extends at one end of the whole cell along the width direction of the battery, and the full tab can be stopped against the bottom wall of the liquid injection structure after being bent, so as to hinder the circulation of the electrolyte.
In the cover plate assembly 10 of the battery according to the embodiment of the present invention, the side wall 212 of the liquid injection groove 211 is provided with the diversion hole 214, so that a flow channel is formed at the side portion of the liquid injection structure 210, and even if the tab 21 is stopped against the bottom wall 213 of the liquid injection groove 211, the electrolyte can flow in through the diversion hole 214 on the side wall 212, so as to prevent the electrolyte from being blocked by the tab 21, thereby greatly improving the liquid injection efficiency, reducing the liquid injection times, and not occupying additional space.
In addition, because the setting of reposition of redundant personnel hole 214, annotate the position of liquid structure 210 and need not to remove to apron 100 to effectively supporting utmost point ear 21, having guaranteed utmost point ear 21's stable in structure, thereby guarantee the functional reliability of battery, need not to cut utmost point ear 21 moreover, guaranteed the manufacturing cost and the yield of battery, eliminated because of cutting utmost point ear and can't clear away the problem of metal dust.
Therefore, the cover plate assembly 10 of the battery according to the embodiment of the invention has the advantages of high liquid injection efficiency, capability of ensuring the performance reliability of the battery, high production efficiency, low cost, high yield and the like.
According to the battery of the embodiment of the invention, by using the cover plate assembly 10 of the battery of the embodiment of the invention, the advantages of high liquid injection efficiency, reliable performance, high production efficiency, low cost, high yield and the like are achieved.
Of course, in some specific examples of the present invention, as shown in fig. 2, fig. 3, fig. 5 and fig. 6, the bottom wall 213 of the liquid injection groove 211 is provided with a flow guiding hole 215, the flow guiding hole 215 is located at the center of the bottom wall 213, and the flow guiding hole 215 communicates the liquid injection groove 211 and the tab accommodating space 220, so that the liquid injection efficiency can be further improved.
In some embodiments of the present invention, as shown in fig. 1-6, to facilitate assembly, the insulator 200 includes an insulator seat 201, a first side barrier 202, and a second side barrier 203.
The insulation seat 201 is disposed on the cover plate 100, and the liquid injection structure 210 is constructed by the insulation seat 201. The first side separator 202 and the second side separator 203 are provided in the insulator base 201 to be opposed to each other in the width direction of the insulator base 201, and the tab receiving space 220 is collectively configured by the insulator base 201, the first side separator 202, and the second side separator 203.
For example, the insulating base 201 is disposed on the lower surface of the cap plate 100 and forms two end walls in the length direction of the cap plate assembly 10, and the first side partition 202 and the second side partition 203 are mounted on the insulating base 201 and form two side walls in the width direction of the cap plate assembly 10. The insulator seat 201, the first side separator 202 and the second side separator 203 together define a tab receiving space 220 having an open lower surface.
It will be understood by those skilled in the art that the cover plate assembly 10 of the battery may further include a pole 260, a lead-out piece 261, an explosion-proof valve 270, and the like.
The electrolyte injection hole 110 and the explosion-proof valve 270 are respectively arranged near two ends of the cover plate 100, the pole 260 is located between the electrolyte injection hole 110 and the explosion-proof valve 270 in the length direction of the cover plate 100, the lead-out piece 261 is arranged below the insulating base 201, the pole 260 penetrates through the insulating base 201 downwards, and the pole 260 is electrically connected with the pole lug 21 of the battery cell 20 through the lead-out piece 261.
In some embodiments of the present invention, as shown in fig. 2-6, the insulator 200 is configured with a shunt space 230, the shunt space 230 surrounds the liquid injection structure 210, the shunt space 230 is communicated with the tab receiving space 220, for example, the shunt space 230 is located above the tab receiving space 220, and the shunt hole 214 is communicated with the tab receiving space 220 through the shunt space 230, in other words, after the electrolyte in the liquid injection groove 211 flows out from the shunt hole 214, the electrolyte firstly enters the shunt space 230 and then enters the tab receiving space 220. Therefore, through the arrangement of the diversion space 230, a sufficient space can be formed at the side part of the liquid injection structure 210, and the electrolyte flowing out of the diversion hole 214 is prevented from being accumulated, so that the liquid injection efficiency is further improved.
Further, in order to further improve the injection efficiency, the diversion holes 214 are plural, each diversion hole 214 extends along the axial direction of the injection structure 210, and the plural diversion holes 214 are arranged at intervals along the circumferential direction of the injection structure 210, for example, at equal intervals, thereby forming a grid-like structure.
In some specific examples of the present invention, as shown in fig. 6, the liquid injection structure 210 has a circular cross section, the opening of the liquid injection groove 211 faces the liquid injection hole 110, the central axis of the liquid injection groove 211 coincides with the central axis of the liquid injection hole 110, and the diameter of the liquid injection groove 211 is not smaller than the diameter of the liquid injection hole 110, so as to ensure that all the electrolyte passing through the liquid injection hole 110 can enter the liquid injection groove 211.
Furthermore, a downward sinking platform 120 is formed on the surface of the cover plate 100 facing the insulating base 201, the sinking platform 120 is arranged around the liquid injection hole 110, a concave part is formed on the upper surface of the cover plate 100 corresponding to the sinking platform 120, a sinking groove 240 is formed on the upper surface of the insulating base 201, the sinking groove 240 is arranged around the liquid injection structure 210, and the sinking platform 120 is matched in the sinking groove 240. Therefore, the stability of the relative positions of the cover plate 100 and the insulating base 201 can be improved, the sealing performance between the cover plate 100 and the insulating base 201 can be improved, and the inflow electrolyte is prevented from overflowing into a gap between the cover plate 100 and the insulating base 201.
In some embodiments of the present invention, as shown in fig. 2, 3, 4 and 6, the side wall of the tab receiving space 220 is provided with a dividing groove 250, and the dividing groove 250 communicates with the dividing hole 214. For example, the shunting grooves 250 are disposed on two opposite side walls of the tab accommodating space 220 in the width direction of the insulating member 200, that is, the shunting grooves 250 are disposed on the inner side surface of the first side separator 202 and the inner side surface of the second side separator 203, the electrolyte in the electrolyte injection groove 211 flows into the shunting space 230 through the shunting holes 214 and then enters the tab accommodating space 220, and can further flow downwards along the shunting grooves 250, that is, the arrangement of the shunting grooves 250 improves the effective space in the tab accommodating space 220 except for the tab 21, increases the flow space of the electrolyte, the shunting holes 214 cooperate with the shunting grooves 250 and the gap between the tab 21 and the insulating member 200, and then combines with the flow guide holes 215 to form a plurality of flow channels, so that the liquid injection speed is greatly improved and the liquid injection frequency is reduced under the conditions of meeting performance requirements and reducing the manufacturing process.
Specifically, as shown in fig. 2, the diverting groove 250 includes a horizontal portion 251 and a plurality of vertical portions 252.
The horizontal portion 251 extends in a length direction of a sidewall of the tab receiving space 220, that is, the first side separator 202 and the second side separator 203 extend in a length direction, the vertical portion 252 extends in an up-down direction, the plurality of vertical portions 252 are disposed at intervals in a length direction of the horizontal portion 251, an upper end of each vertical portion 252 communicates with the horizontal portion 251 and a lower end thereof penetrates through lower edges of the first side separator 202 and the second side separator 203, for example, the lower edges of the first side separator 202 and the second side separator 203 are respectively provided with an inward protrusion 221, the protrusion 221 is used to support a bending angle of the tab 21, the vertical portion 252 is disposed perpendicular to the protrusion 221 and the vertical portion 252 penetrates through the protrusion 221.
Thus, by providing the horizontal portion 251 consistent with the extending direction of the tab 21 and providing the plurality of vertical portions 252, the electrolyte can be guided to the plurality of vertical portions 252 after entering the horizontal portion 251, so that the electrolyte can be uniformly injected into the inside of the battery in the length direction of the cap plate assembly 10, and the uniformity of electrolyte injection is improved.
For example, each of the diversion grooves 250 includes one horizontal portion 251 and two vertical portions 252, and the two vertical portions 252 are respectively disposed at both ends of the horizontal portion 251, wherein one vertical portion 252 of each diversion groove 250 is disposed adjacent to the liquid injection structure 210.
Other constructions and operations of the battery according to the embodiment of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description herein, references to the description of "a particular embodiment," "a particular example," etc., 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.
While embodiments of the 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 (13)
1. A cover plate assembly for a battery, comprising:
the cover plate is provided with a liquid injection hole;
the insulating part, the insulating part is located the apron, the insulating part is constructed and is annotated the liquid structure, annotate the liquid structure have with annotate the notes cistern of liquid hole intercommunication, it has lateral wall and diapire to annotate the cistern, the lateral wall is equipped with the reposition of redundant personnel hole.
2. The battery cover plate assembly according to claim 1, wherein the insulator is configured with a tab receiving space, a bottom wall of the fluid reservoir faces the tab receiving space, and the branch hole communicates the fluid reservoir and the tab receiving space.
3. The cover plate assembly of a battery according to claim 2, wherein the insulator is configured with a shunt space surrounding the outside of the liquid injection structure and communicating with the tab receiving space, and the shunt hole communicates with the tab receiving space through the shunt space.
4. The cover plate assembly of the battery according to claim 1, wherein the plurality of the branch holes are provided, each of the branch holes extends in an axial direction of the liquid injection structure, and the plurality of the branch holes are provided at intervals in a circumferential direction of the liquid injection structure.
5. The cover plate assembly of battery according to claim 1, wherein the cross section of the liquid injection structure is circular ring shape, the opening of the liquid injection groove faces the liquid injection hole, the central axis of the liquid injection groove coincides with the central axis of the liquid injection hole, and the diameter of the liquid injection groove is not less than the diameter of the liquid injection hole.
6. The cover plate assembly of battery according to claim 1, wherein the surface of the cover plate facing the insulating member is configured with a sunken platform and the sunken platform is disposed around the liquid injection hole, the insulating member is configured with a sunken groove and the sunken groove is disposed around the liquid injection structure, and the sunken platform is fitted in the sunken groove.
7. The cover plate assembly for a battery according to any one of claims 1 to 6, wherein the bottom wall of the liquid injection groove is provided with a diversion hole.
8. The cap plate assembly for batteries according to any one of claims 2 to 7, wherein the side walls of the tab receiving spaces are provided with a shunt groove, the shunt groove communicating with the shunt hole.
9. The battery cap plate assembly according to claim 8, wherein the shunting grooves are provided at both side walls of the tab receiving space opposite in a width direction of the insulator.
10. The cover plate assembly of a battery according to claim 8, wherein the diverting channel comprises:
a horizontal part extending in a length direction of a side wall of the tab receiving space;
the vertical parts are arranged at intervals along the length direction of the horizontal part and are respectively communicated with the horizontal part.
11. The cover plate assembly of battery according to claim 10, wherein each of the dividing grooves includes two of the vertical portions, the two vertical portions are respectively disposed at both ends of the horizontal portion, and one of the vertical portions is disposed adjacent to the liquid injection structure.
12. The cap plate assembly of a battery according to any one of claims 2 to 11, wherein the insulating member comprises:
the insulating seat is arranged on the cover plate, and the liquid injection structure is formed by the insulating seat;
the first side separator and the second side separator, the first side separator with the second side separator is located the insulator seat just is in relative in the width direction of insulator seat, utmost point ear accommodation space by the insulator seat first side separator with the second side separator constructs jointly.
13. A battery comprising the cover plate assembly of the battery according to any one of claims 1-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910716672.5A CN112421155A (en) | 2019-08-05 | 2019-08-05 | Battery and cover plate assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910716672.5A CN112421155A (en) | 2019-08-05 | 2019-08-05 | Battery and cover plate assembly thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112421155A true CN112421155A (en) | 2021-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910716672.5A Pending CN112421155A (en) | 2019-08-05 | 2019-08-05 | Battery and cover plate assembly thereof |
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| Country | Link |
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| CN (1) | CN112421155A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022205463A1 (en) * | 2021-04-02 | 2022-10-06 | 宁德时代新能源科技股份有限公司 | End cover assembly, battery cell, battery, and method and device for manufacturing battery cell |
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| CN106784437A (en) * | 2016-12-01 | 2017-05-31 | 浙江长兴金太阳电源有限公司 | A kind of battery cover structure |
| CN207038571U (en) * | 2017-08-04 | 2018-02-23 | 宁德时代新能源科技股份有限公司 | Secondary cell |
| CN207800666U (en) * | 2018-02-01 | 2018-08-31 | 宁德时代新能源科技股份有限公司 | The cap assembly and secondary cell of secondary cell |
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| CN204596850U (en) * | 2015-03-31 | 2015-08-26 | 比亚迪股份有限公司 | A kind of cover plate assembly and lithium ion battery |
| CN204809306U (en) * | 2015-07-15 | 2015-11-25 | 宁德时代新能源科技有限公司 | Secondary cell's notes liquid hole weld assembly |
| CN106784437A (en) * | 2016-12-01 | 2017-05-31 | 浙江长兴金太阳电源有限公司 | A kind of battery cover structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022205463A1 (en) * | 2021-04-02 | 2022-10-06 | 宁德时代新能源科技股份有限公司 | End cover assembly, battery cell, battery, and method and device for manufacturing battery cell |
| JP2023527512A (en) * | 2021-04-02 | 2023-06-29 | 寧徳時代新能源科技股▲分▼有限公司 | END CAP ASSEMBLY, BATTERY CELL, METHOD AND APPARATUS FOR BATTERY AND BATTERY CELL |
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Application publication date: 20210226 |