CN111599951B - Battery cover plate assembly - Google Patents
Battery cover plate assembly Download PDFInfo
- Publication number
- CN111599951B CN111599951B CN202010579926.6A CN202010579926A CN111599951B CN 111599951 B CN111599951 B CN 111599951B CN 202010579926 A CN202010579926 A CN 202010579926A CN 111599951 B CN111599951 B CN 111599951B
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- China
- Prior art keywords
- lower plastic
- battery
- channel
- battery cover
- liquid
- 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.)
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- 239000007788 liquid Substances 0.000 claims abstract description 100
- 238000002347 injection Methods 0.000 claims abstract description 54
- 239000007924 injection Substances 0.000 claims abstract description 54
- 230000005540 biological transmission Effects 0.000 claims description 27
- 239000000243 solution Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000003792 electrolyte Substances 0.000 abstract description 45
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 5
- 238000002791 soaking Methods 0.000 abstract description 3
- 239000006185 dispersion Substances 0.000 abstract 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000004880 explosion Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Filling, Topping-Up Batteries (AREA)
Abstract
The application provides a battery cover plate assembly, including lower plastic, lower plastic includes annotates the liquid passageway, annotate the liquid passageway setting and be in lower plastic's main part is configured to get into electrolyte dispersion export of annotating the liquid passageway. Electrolyte injected into the battery is provided with a scattered type dropping, the electrolyte can drop onto the battery core at more positions, the speed of the pole piece for soaking the electrolyte can be increased, a plurality of scattered hole sites exist in the electrolyte injection channel, and the normal operation of the electrolyte injection cannot be influenced even if individual hole sites are blocked in the negative pressure electrolyte injection process, so that the efficiency of the battery manufacturing process is improved, and the time is saved for the production of the battery.
Description
Technical Field
The application relates to the field of lithium ion battery equipment, in particular to a battery cover plate assembly.
Background
At present, under the promotion of the existing policy and market, the demand for lithium ion power batteries is increasing, and meanwhile, higher demands are put forward on the mass production efficiency of the lithium ion power batteries. In the existing structure, electrolyte is injected into the battery through the electrolyte injection hole, and the electrolyte enters the battery from a single channel and then infiltrates the battery pole piece. For larger size batteries using existing methods of filling, it takes a relatively longer time for the electrolyte to diffuse from one place to the rest. In addition, when the battery is injected under negative pressure, if the situation of blocking exists near the injection hole, the injection efficiency is seriously affected.
Therefore, it is necessary to develop a battery cover assembly to increase the infiltration speed of the pole pieces, and to reduce the problems of low liquid injection efficiency caused by blockage to the greatest extent.
Disclosure of Invention
The technical problem that this application was to solve is that current battery pole piece electrolyte infiltration speed is slow, annotates the liquid inefficiency scheduling problem that causes when liquid hole jam.
To solve the above technical problem, the present application discloses a battery cover plate assembly, including: and the lower plastic comprises a liquid injection channel, wherein the liquid injection channel is arranged on the main body part of the lower plastic and is configured to disperse and guide out liquid entering the liquid injection channel.
Optionally, the liquid injection channel includes:
at least one liquid inlet;
at least one transmission channel, which is communicated with the at least one liquid inlet;
and one or more outlets penetrating at least one of the transport channels and configured to discharge the liquid.
Optionally, the cover plate assembly further includes:
the top cover plate can be assembled on the lower plastic body, and the top cover plate comprises a liquid injection port, and the position of the liquid injection port corresponds to the position of the liquid inlet.
Optionally, the liquid injection channel further comprises at least one flow guiding device, wherein the flow guiding device is arranged in the liquid inlet and guides the solution entering the liquid inlet into the transmission channel.
Optionally, the transmission channel is a groove provided in the lower plastic body portion.
Optionally, the transmission channel is a hollow tube disposed in the lower plastic body portion.
Optionally, the transmission channel includes any one or more of square, semicircular, elliptic, and bar.
Optionally, the more than one outlet ports are uniformly distributed on the transmission channel.
Optionally, the cross section of the more than one outlet is any one or more of a circle, an ellipse, a triangle and a polygon.
Optionally, the lower plastic further comprises two tab grooves, the two tab grooves are respectively arranged on two sides of the lower plastic, and the liquid injection channel is arranged between the two tab grooves.
According to the technical scheme, the electrolyte injection channel is additionally arranged on the lower plastic, so that the electrolyte is distributed in the battery in a distributed mode, the electrolyte is distributed more uniformly in the battery core, the speed of the pole piece for infiltrating the electrolyte can be increased, the efficiency of the battery manufacturing process is improved, and the time is saved for the production of the battery. The lower plastic is provided with more than one outlet, so that even if individual outlets are blocked in the negative pressure liquid injection process, the normal operation of liquid injection is not influenced, and the liquid injection efficiency is greatly improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an exploded view of a battery cover assembly according to an embodiment of the present application;
FIG. 2 is a schematic view of a battery cover assembly according to an embodiment of the present disclosure;
FIG. 3 is a schematic view of a plastic planar structure under a battery cover assembly according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of a liquid injection channel according to some embodiments of the present disclosure;
fig. 5 is a schematic structural diagram of a flow guiding device of a battery cover assembly according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
In the description of the present application, it should be understood that the terms "upper," "lower," "top," "bottom," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the apparatus or elements in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may include one or more of the feature, either explicitly or implicitly. Moreover, the terms "first," "second," and the like, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or otherwise described herein.
The application provides a battery cover plate assembly, can improve battery annotate liquid speed, reduce the negative pressure and annotate liquid in-process annotate the influence of liquid hole jam to annotating liquid efficiency.
An exploded view of a battery cover assembly according to an embodiment of the present application is shown in fig. 1. The battery cover assembly may be assembled with a housing for containing the battery cells and electrolyte. The battery cover assembly includes a top cover 1 and a lower plastic 2, the top cover 1 being fittable to the lower plastic 2.
The electrolyte is inflammable and organic volatile liquid with obvious corrosiveness. And is harmful to human body, so that in the process of filling liquid, the electrolyte needs to be in a sealed state, and is prevented from being exposed to air. Therefore, the top cover 1 and the lower plastic 2 need to be assembled in a sealing manner, as shown in fig. 2, which is a schematic structural diagram of the battery cover assembly according to some embodiments of the present application, and the top cover 1 and the lower plastic 2 are assembled in a manner of riveting through positive and negative poles.
In some embodiments of the present application, the battery cover assembly may be welded to the battery case by laser welding, so that the battery cover assembly and the battery case form the same sealed space. When the negative pressure liquid injection is adopted, the battery cell is arranged in the sealed space of the battery shell and the battery cover plate component.
Referring to fig. 1 and fig. 2, the top cover plate 1 includes a liquid injection port 11, the lower plastic 2 includes a liquid inlet 211, and after assembly, the position of the liquid injection port 11 corresponds to the position of the liquid inlet 211 on the lower plastic 2. In the liquid injection process, the liquid injection equipment is connected to the battery cover plate assembly through the liquid injection port 11, and pumps the battery cover plate assembly, and negative pressure is formed inside the sealed space of the battery shell and the battery cover plate assembly. Electrolyte automatically flows from the liquid injection device to the liquid injection port 11 under the action of air pressure difference during liquid injection, the liquid injection port 11 corresponds to the liquid inlet position 211, the electrolyte enters the lower plastic 2 through the liquid inlet 211, and enters the battery shell through the liquid outlet of the lower plastic 2, and then the battery cells in the battery shell are infiltrated. After the liquid injection is completed, a sealing glue nail made of rubber material can be plugged into the liquid injection port 11, and then the sealing glue nail made of the same material as the top cover plate 1 is used for laser welding, so that the internal sealing of the battery cover plate assembly is kept.
Fig. 3 is a schematic plan view of a lower plastic 2 in the battery cover assembly according to the embodiment of the present application. The lower plastic 2 comprises a filling channel 21. The liquid injection channel 21 is provided in a main body portion of the lower plastic 2 and is configured to disperse and guide out liquid entering the liquid injection channel 21. In some embodiments of the present application the filling channel 21 is located in the middle of the lower plastic 2,
the lower plastic 2 further comprises two tab grooves 22, the two tab grooves 22 are respectively arranged on two sides of the lower plastic 2, and the liquid injection channel 21 is arranged between the two tab grooves 22. The battery cell tab of the battery is connected to the battery positive and negative electrode posts of the top cover plate 1 through the tab groove 22.
The lower plastic 2 further comprises a grid 215, the grid 215 is arranged in the middle of the lower plastic 2 and is adjacent to or partially overlapped with the liquid injection channel 21, and the grid 215 is of a hollow structure and plays a role in preventing explosion of the battery. When the lithium ion battery is in use, internal short circuit or long-time in a humid environment or battery overcharge and other adverse conditions occur, a large amount of gas is generated in the battery, and when the internal pressure generated by the gas is so high that the battery shell cannot bear, the explosion occurs. The grille 215 is hollow in structure, and when gas generated by bad conditions in the battery passes through the grille 215, the gas is discharged out of the battery through an explosion-proof valve arranged on the top cover plate 1, so that explosion caused by gas accumulation in the battery is avoided.
The liquid injection channel 21 comprises at least one liquid inlet 211; at least one transmission channel 212, wherein the at least one transmission channel 212 is communicated with the at least one liquid inlet 211; and one or more outlet ports 213, wherein the one or more outlet ports 213 are communicated with at least one of the transmission channels 212 and configured to discharge liquid.
The liquid inlet 211 is disposed at a position corresponding to the liquid inlet 11, is connected to the liquid inlet 11, and electrolyte enters the liquid inlet 211 from the liquid inlet 11, and is introduced into the transmission channel 212 through the liquid inlet 211. In the embodiment shown in fig. 3, the liquid inlet 211 is disposed near the tab groove 22. In actual production, the size of part of the battery is larger, the electrolyte injection amount is large, and a plurality of liquid inlets can be arranged to meet production requirements (corresponding liquid injection ports with the same number are required to be arranged) so as to improve the liquid injection efficiency.
The transmission channel 212 shown in fig. 3 may be a groove disposed in the main body of the lower plastic 2, and is communicated with the liquid inlet 211 to receive the electrolyte introduced from the liquid inlet 211. Electrolyte enters the battery shell through the lead-out opening 213 arranged on the transmission channel 212, and wets the battery cells.
The transmission channel may include one or more transmission channels uniformly provided in the main body portion of the lower plastic 2. For example, each of the transfer channels 212 may be a non-closed strip channel or a closed ring channel. The structure is beneficial for the electrolyte to uniformly enter the battery shell.
In some embodiments of the present application, the transmission channel 212 may be any one or more of square, semicircular, oval, and bar-shaped. The cross-sectional shape of the transfer channel in some embodiments of the present application is a semicircular configuration of transfer channels 212 as shown in fig. 4.
The transmission channel 212 may also be a hollow tube mounted on the main body of the lower plastic 2. One end of the hollow tube is connected to the liquid inlet 211, and the other end is connected to the lower surface of the lower plastic 2, and the position of the hollow tube is staggered from the grid 215. And the hollow tube is provided with holes at one side close to the battery core to form a plurality of evenly distributed guide outlets. The hollow tube may have one end connected to the liquid inlet and the other end aligned to the battery cell, and when the electrolyte enters the hollow tube from the liquid inlet 211, the other end of the hollow tube directly guides the electrolyte to the battery cell.
The outlets 213 are evenly distributed over the transmission channel 212. During the introduction of the electrolyte into the battery, the electrolyte on the transfer passage 212 is introduced into the inside of the battery through the plurality of outlet ports 213. The number of the outlet ports 213 can be adjusted according to the size of the battery cells, when the cells are larger, a relatively large number of outlet ports can be arranged, and when the cells are smaller, a relatively small number of outlet ports can be arranged. The plurality of outlets 213 are uniformly distributed on the transmission channel 212, and when the electrolyte is introduced, the electrolyte can also uniformly drop on the battery cells, so that the efficiency of the cells for soaking the electrolyte is higher compared with the case that the outlets are concentrated at one place. Meanwhile, the efficiency of leading in electrolyte is higher than that of a traditional single outlet, production time is saved, and when a plurality of outlets exist, the injection liquid is not stagnated even if one outlet is blocked.
The cross section of the outlet 213 is any one or more of a circle, an ellipse, a triangle, and a polygon. The shape of the outlet 213 in the embodiment shown in fig. 3 is circular, and the size of the outlet 213 influences the electrolyte outlet speed. In actual production, the electrolyte soaking speeds of different battery cells are different, and the electrolyte guiding speed can be adjusted by adjusting the size of the guiding-out opening 213 so as to adapt to the attribute of the different battery cells, thereby improving the production efficiency.
The liquid injection channel 21 further comprises at least one flow guiding device 214, wherein the flow guiding device 214 is arranged in the liquid inlet 211, and guides the solution entering the liquid inlet 211 into the transmission channel 212. Fig. 5 is a schematic structural diagram of a flow guiding device 214 in the embodiment of the present application, the cross section of the flow guiding device is triangular, and two inclined planes face to two transmission channels on two sides respectively. In some embodiments, during the battery filling process, the electrolyte is introduced into the transfer channel 212 from the liquid inlet 211, the transfer channel 212 is a closed rectangular loop (or a closed elliptical loop), and the cross-sectional width of the liquid inlet 211 is larger than the cross-sectional width of the transfer channel 212, so that the electrolyte can accumulate and flow back at the liquid inlet 211. The flow guiding device 214 is disposed in the liquid inlet 211, guides the electrolyte into the transmission channel 212, reduces the accumulation and backflow of the electrolyte in the liquid inlet 211, and ensures that the electrolyte has better fluidity and can be uniformly dispersed in the transmission channel 212.
In summary, the present application provides a battery cover assembly. Through the liquid injection channel at battery cover plate assembly sets up a plurality of distributed exports for inside electrolyte distributed type pours into the battery into, make the position distribution of electrolyte in the electric core more even, can accelerate the speed that the pole piece soaks the electrolyte. In addition, the liquid injection channel is provided with a plurality of outlet ports, so that even if individual outlet ports are blocked in the negative pressure liquid injection process, the normal operation of liquid injection is not influenced, the efficiency of the battery manufacturing process is improved, and the time is saved for the production of the battery.
In view of the foregoing, it will be evident to a person skilled in the art that the foregoing detailed disclosure may be presented by way of example only and may not be limiting. Although not explicitly described herein, those skilled in the art will appreciate that the present application is intended to embrace a variety of reasonable alterations, improvements and modifications to the embodiments. Such alterations, improvements, and modifications are intended to be proposed by this disclosure, and are intended to be within the spirit and scope of the exemplary embodiments of this disclosure.
Furthermore, certain terms in the present application have been used to describe embodiments of the present disclosure. For example, "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present disclosure. Thus, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various portions of this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined as suitable in one or more embodiments of the disclosure.
It should be appreciated that in the foregoing description of embodiments of the present disclosure, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure. Alternatively, the present application is directed to various features that are dispersed throughout a plurality of embodiments of the present application. However, this is not to say that a combination of these features is necessary, and it is entirely possible for a person skilled in the art to extract some of them as separate embodiments to understand them at the time of reading this application. That is, embodiments in this application may also be understood as an integration of multiple secondary embodiments. While each secondary embodiment is satisfied by less than all of the features of a single foregoing disclosed embodiment.
In some embodiments, numbers expressing quantities or properties used to describe and claim certain embodiments of the present application are to be understood as being modified in some instances by the term "about," approximately, "or" substantially. For example, unless otherwise indicated, "about," "approximately," or "substantially" may mean a change in a value of ±20% of what it describes. Accordingly, in some embodiments, the numerical parameters set forth in the written description and attached claims are approximations that may vary depending upon the desired properties sought to be obtained by the particular embodiment. In some embodiments, numerical parameters should be construed in light of the number of reported significant digits and by applying ordinary rounding techniques. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the embodiments of the disclosure are approximations, the numerical values set forth in the specific examples are reported as precisely as possible.
Each patent, patent application, publication of patent application, and other materials, such as articles, books, specifications, publications, documents, articles, etc., cited herein are hereby incorporated by reference. The entire contents for all purposes, except for any prosecution file history associated therewith, may be any identical prosecution file history inconsistent or conflicting with this file, or any identical prosecution file history which may have a limiting influence on the broadest scope of the claims. Now or later in association with this document. For example, if there is any inconsistency or conflict between the description, definition, and/or use of terms associated with any of the incorporated materials, the terms in the present document shall prevail.
Finally, it is to be understood that the embodiments of the application disclosed herein are illustrative of the principles of the embodiments of the present application. Other modified embodiments are also within the scope of the present application. Accordingly, the embodiments disclosed herein are by way of example only and not limitation. Those skilled in the art can adopt alternative configurations to implement the applications herein according to embodiments herein. Thus, embodiments of the present application are not limited to what has been described in the application precisely.
Claims (8)
1. A battery cover assembly, comprising:
a lower plastic comprising a liquid injection channel disposed in a main body portion of the lower plastic configured to disperse and direct liquid entering the liquid injection channel; the liquid injection channel comprises: at least one liquid inlet;
at least one transfer channel, which is a closed annular channel, which is communicated with the at least one liquid inlet;
one or more outlets penetrating at least one of the transport channels and configured to conduct out liquid;
the lower plastic also comprises a grid, wherein the grid is arranged in the middle of the lower plastic and is adjacent to or partially overlapped with the liquid injection channel, and the grid is of a hollow structure;
the liquid injection channel further comprises at least one flow guiding device, wherein the flow guiding device is arranged in the liquid inlet and guides the solution entering the liquid inlet into the transmission channel; the section of the flow guiding device is triangular, and the two inclined planes face the transmission channels on the two sides respectively.
2. The battery cover assembly of claim 1, wherein the cover assembly further comprises: the top cover plate can be assembled on the lower plastic body, and the top cover plate comprises a liquid injection port, and the position of the liquid injection port corresponds to the position of the liquid inlet.
3. The battery cover assembly of claim 1, wherein the transmission channel is a groove disposed in the lower plastic body portion.
4. The battery cover assembly of claim 1, wherein the transfer channel is a hollow tube disposed in the lower plastic body portion.
5. The battery cover assembly of claim 1, wherein the transmission channel comprises any one or more of square, semi-circular, oval, and bar.
6. The battery cover assembly of claim 1, wherein the one or more outlets are evenly distributed over the transmission channel.
7. The battery cover assembly of claim 1, wherein the one or more outlet ports are any one or more of circular, oval, triangular, and polygonal in cross-section.
8. The battery cover plate assembly of claim 1, wherein the lower plastic further comprises two tab grooves, the two tab grooves are respectively disposed on two sides of the lower plastic, and the liquid injection channel is disposed between the two tab grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010579926.6A CN111599951B (en) | 2020-06-23 | 2020-06-23 | Battery cover plate assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010579926.6A CN111599951B (en) | 2020-06-23 | 2020-06-23 | Battery cover plate assembly |
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| Publication Number | Publication Date |
|---|---|
| CN111599951A CN111599951A (en) | 2020-08-28 |
| CN111599951B true CN111599951B (en) | 2024-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010579926.6A Active CN111599951B (en) | 2020-06-23 | 2020-06-23 | Battery cover plate assembly |
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| CN (1) | CN111599951B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN220963690U (en) * | 2022-01-13 | 2024-05-14 | 宁德时代新能源科技股份有限公司 | Battery monomer, battery, electric equipment and battery monomer manufacturing equipment |
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