CN219832969U - Electrode plate and battery - Google Patents
Electrode plate and battery Download PDFInfo
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- CN219832969U CN219832969U CN202320920627.3U CN202320920627U CN219832969U CN 219832969 U CN219832969 U CN 219832969U CN 202320920627 U CN202320920627 U CN 202320920627U CN 219832969 U CN219832969 U CN 219832969U
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- Prior art keywords
- protective layer
- current collector
- electrode
- battery
- tab
- Prior art date
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Links
- 239000011241 protective layer Substances 0.000 claims abstract description 55
- 239000010410 layer Substances 0.000 claims abstract description 40
- 239000011149 active material Substances 0.000 claims abstract description 22
- 239000012790 adhesive layer Substances 0.000 claims description 9
- 239000011888 foil Substances 0.000 claims description 8
- 229910002588 FeOOH Inorganic materials 0.000 claims description 3
- 239000004642 Polyimide Substances 0.000 claims description 3
- 229920002125 Sokalan® Polymers 0.000 claims description 3
- 239000004584 polyacrylic acid Substances 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000007774 positive electrode material Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000006258 conductive agent Substances 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- GEIAQOFPUVMAGM-UHFFFAOYSA-N Oxozirconium Chemical compound [Zr]=O GEIAQOFPUVMAGM-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- QTHKJEYUQSLYTH-UHFFFAOYSA-N [Co]=O.[Ni].[Li] Chemical compound [Co]=O.[Ni].[Li] QTHKJEYUQSLYTH-UHFFFAOYSA-N 0.000 description 1
- KFDQGLPGKXUTMZ-UHFFFAOYSA-N [Mn].[Co].[Ni] Chemical compound [Mn].[Co].[Ni] KFDQGLPGKXUTMZ-UHFFFAOYSA-N 0.000 description 1
- 239000006183 anode active material Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 229960004887 ferric hydroxide Drugs 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 description 1
- YWXYYJSYQOXTPL-SLPGGIOYSA-N isosorbide mononitrate Chemical compound [O-][N+](=O)O[C@@H]1CO[C@@H]2[C@@H](O)CO[C@@H]21 YWXYYJSYQOXTPL-SLPGGIOYSA-N 0.000 description 1
- BDKWOJYFHXPPPT-UHFFFAOYSA-N lithium dioxido(dioxo)manganese nickel(2+) Chemical compound [Mn](=O)(=O)([O-])[O-].[Ni+2].[Li+] BDKWOJYFHXPPPT-UHFFFAOYSA-N 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Battery Electrode And Active Subsutance (AREA)
Abstract
The utility model provides an electrode plate and a battery. The electrode sheet includes: a current collector having a first side and a second side opposite in a first direction; the electrode lugs are arranged at intervals along the second direction and are connected with the first side edge of the current collector; an active material layer disposed on at least one surface of the current collector; and the protective layer covers part of the surface of the current collector and is adjacent to the first side edge, wherein the forbidden bandwidth of the protective layer is 1 eV-6 eV. The electrode plate and the battery can prevent burrs from piercing the diaphragm, so that the risk of short circuit of the battery is reduced; even if the burrs pierce the diaphragm, the protective layer can slow down the severity of the short circuit of the battery; in addition, the protective layer has the characteristic of high heat dissipation coefficient, can improve the heat dissipation capacity of the electrode pole piece when the laser is used for cutting the electrode pole piece, and has less damage to a cutter when the cutter is used for cutting the electrode pole piece.
Description
Technical Field
The utility model mainly relates to the field of batteries, in particular to an electrode plate and a battery.
Background
The tab is an important component of a multi-tab wound battery. In the process of cutting the tab, a large number of burrs are generated at the edges of the tab and the current collector, and the burrs possibly pierce through the isolating film between the adjacent electrode plates, so that the battery is short-circuited.
Therefore, how to solve the problem of the burr penetrating the separator and how to reduce the severity of the short circuit of the battery after the burr penetrates the separator is a urgent problem to be solved.
Disclosure of Invention
The utility model aims to provide an electrode plate and a battery, which can reduce the risk of a burr penetrating through a diaphragm and reduce the severity of short circuit of the battery after the burr penetrates through the diaphragm.
The technical scheme adopted by the utility model for solving the technical problems is an electrode plate, comprising: a current collector having a first side and a second side opposite in a first direction; the electrode lugs are arranged at intervals along the second direction and are connected with the first side edge of the current collector; an active material layer disposed on at least one surface of the current collector; and the protective layer covers part of the surface of the current collector and is adjacent to the first side edge, wherein the forbidden bandwidth of the protective layer is 1 eV-6 eV.
In an embodiment of the utility model, the protection layer further covers a part of the surface of each tab and is adjacent to the first side edge.
In an embodiment of the present utility model, the protective layer is FeOOH, znO, al 2 O 3 Or ZrO(s) 2 。
In an embodiment of the present utility model, an adhesive layer is further included, where the adhesive layer is disposed between the current collector and the protective layer, and/or between the protective layer and the plurality of tabs.
In an embodiment of the present utility model, the adhesive layer is polyacrylic acid or polyimide.
In one embodiment of the present utility model, the protective layer is connected to the active material layer along the first direction.
In an embodiment of the utility model, the protective layer overlaps the active material layer along the first direction.
In an embodiment of the present utility model, a first part of the protection layer covers a part of the surface of the tab and is adjacent to the first side, a second part of the protection layer covers a part of the surface of the current collector and is adjacent to the first side, and a third part of the protection layer covers a part of the surface of the current collector and is adjacent to the second side, wherein the first part of the protection layer is opposite to the third part of the protection layer along the first direction.
In an embodiment of the utility model, each tab has an empty foil area along a side of the first direction away from the current collector.
The utility model also provides a battery for solving the technical problems, which comprises the electrode plate.
The electrode plate and the battery can prevent burrs from piercing the diaphragm, so that the short circuit of the battery is avoided; even if the burrs pierce the diaphragm, the protective layer can slow down the severity of the short circuit of the battery, thereby avoiding a great amount of heat generated by the battery due to the short circuit. In addition, compared with the insulating material, the protective layer has the characteristic of high heat dissipation coefficient, can improve the heat of the electrode pole piece when the laser is used for cutting the electrode pole piece, and has less damage to a cutter when the cutter is used for cutting the electrode pole piece.
Drawings
In order to make the above objects, features and advantages of the present utility model more comprehensible, embodiments accompanied with figures are described in detail below, wherein:
FIG. 1 is a schematic top view of an electrode sheet according to an embodiment of the present utility model;
FIG. 2 is a schematic front view of the electrode pad of FIG. 1;
FIG. 3 is a schematic top view of an electrode sheet according to an embodiment of the present utility model;
FIG. 4 is a schematic top view of an electrode sheet according to another embodiment of the present utility model;
fig. 5 is a schematic top view of positive and negative electrode sheets according to an embodiment of the present utility model.
Reference numerals
Second surface 114 of electrode sheet 100
Tab 120 of current collector 110
First side 111 blank foil area 121
Second side 112 active material layer 130
The first surface 113 is protected by a layer 140
Detailed Description
In order to make the above objects, features and advantages of the present utility model more comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways than as described herein, and therefore the present utility model is not limited to the specific embodiments disclosed below.
As used in the specification and in the claims, the terms "a," "an," "the," and/or "the" are not specific to a singular, but may include a plurality, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and they do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model. Furthermore, although terms used in the present utility model are selected from publicly known and commonly used terms, some terms mentioned in the present specification may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Furthermore, it is required that the present utility model is understood, not simply by the actual terms used but by the meaning of each term lying within.
The electrode tab and the battery of the present utility model will be described below by way of specific examples.
Fig. 1 is a schematic top view of an electrode sheet according to an embodiment, and fig. 2 is a schematic front view of the electrode sheet in fig. 1. Referring to fig. 1 and 2, the electrode tab 100 includes a current collector 110, a plurality of tabs 120, an active material layer 130, and a protective layer 140.
Specifically, the current collector 110 extends along the second direction D2, and has opposite first and second sides 111 and 112 along the first direction D1. Electrode tab 100 may be a positive electrode tab or a negative electrode tab. When the electrode tab 100 is a positive electrode tab, the current collector 110 may be selected from one of aluminum foils, such as porous aluminum foil or etched aluminum foil. When electrode sheet 100 is a negative electrode sheet, current collector 110 may be a copper foil.
The plurality of tabs 120 are spaced apart along the second direction D2, and each tab 120 is connected to the first side 111 of the current collector 110. One end of the tab 120 is electrically connected to the current collector 110, and the other end of the tab 120 may be electrically connected to the tab adapter. In some embodiments, current collector 110 and tab 120 may be cut from the same piece of sheet material.
As shown in fig. 2, the current collector 110 has a first surface 113 and a second surface 114 opposite to each other in a third direction D3, and the active material layer 130 is disposed on at least one surface of the current collector 110. In the embodiment of fig. 1 and 2, the active material layer 130 is disposed on the first surface 113 of the current collector 110. As shown in fig. 1, the active material layer 130 covers a portion of the entire first surface 113 in the second direction D2 and a portion of the first surface 113 in the first direction D1. In other words, one of the opposite sides of the active material layer 130 in the first direction D1 coincides with the second side 112 of the current collector 110, and the other side does not coincide with the first side 111 of the current collector 110, and a distance therebetween in the first direction D1 is D1. The utility model is not limited to the specific size of D1, and in some embodiments, D1 is 1% to 20% of the size of current collector 110 along first direction D1.
When the electrode tab 100 is a positive electrode tab, the active material layer 130 is a positive electrode active material layer including a positive electrode active material, a conductive agent, and a binder. The positive electrode active material can be one or more of nickel lithium cobalt oxide, lithium iron phosphate, lithium manganate, spinel nickel lithium manganate and nickel cobalt manganese ternary materials. When the electrode tab 100 is a negative electrode tab, the active material layer 130 is a negative electrode active material layer including a negative electrode active material, a conductive agent, and a binder. The anode active material may be carbon or silicon.
Referring back to fig. 1, the protection layer 140 is an elongated shape, which extends along the second direction D2 and has a certain width along the first direction D1. The protective layer 140 covers the first surface 113 of the portion of the current collector 110 and is adjacent to the first side 111. In fig. 1, two opposite sides of the protection layer 140 in the first direction D1 are respectively connected to the first side 111 and one side of the active material layer 130. In other words, in fig. 1, the dimension D1 of the protective layer 130 along the first direction is D1. It should be appreciated that the dimension of the protective layer 130 along the first direction D1 is not limited to D1, nor is the relationship between the protective layer 130 and the first side 111 and the active material layer 130 limited to fig. 1. For example, in some embodiments, the protective layer 130 overlaps the active material layer 130 in the first direction D1, and the present utility model does not limit the area of the overlapping portion. For another example, in some other embodiments, the protective layer 130 is spaced from the active material layer 130 by 0.1mm to 5mm in the first direction D1. In some embodiments, the dimension of protective layer 130 along first direction D1 is equal to or less than 10% of the dimension of current collector 110 along first direction D1.
Fig. 5 is a schematic top view of positive and negative electrode tabs of an embodiment. Referring to fig. 5, in the process of manufacturing the battery, the positive electrode tab 10 and the negative electrode tab 20 are disposed opposite to each other with the positive electrode tab 20 therebetweenA separator (not shown) is provided, which separates the positive electrode tab 10 and the negative electrode tab 20, preventing the two poles from being in contact and shorting. Burrs may occur at the edges of the tabs during the production of the electrode tabs. For example, in the process of manufacturing the current collector and the tab from the same sheet, burrs may occur at the tab edge due to shearing. There is a risk that burrs at the edges of the tabs puncture the separator to cause a short circuit of the battery. The protective layer is arranged on the electrode pole piece, so that burrs can be prevented from piercing the diaphragm, and the battery is prevented from being shorted, and even if the burrs pierce the diaphragm, the protective layer can slow down the intensity of the battery short circuit, so that the battery is prevented from generating a large amount of heat due to the short circuit. The material of the protective layer is selected from materials with the forbidden band width of 1 eV-6 eV, and can be ferric hydroxide (FeOOH), zinc oxide (ZnO) and aluminum oxide (Al 2 O 3 ) Zirconium oxide (ZrO) 2 ) One of them. Compared with the material adopting the insulating material (the forbidden bandwidth is larger than 6 eV), the material with the forbidden bandwidth of 1 eV-6 eV has the characteristic of high heat dissipation coefficient, so that when the electrode plate is cut by using the laser, the heat of the electrode plate can be ensured to be dissipated in time at a higher cutting speed. In addition, the material with partial forbidden band width of 1 eV-6 eV has the characteristic of lower hardness, so that the damage to the cutter is smaller when the cutter is used for cutting the electrode plate.
In one embodiment, the electrode tab further comprises an adhesive layer disposed between the current collector and the protective layer. The adhesive layer is used for bonding the current collector and the protective layer. The adhesive layer may be selected from one of polyacrylic acid and polyimide.
The area where the protective layer is located in the present utility model is not limited to the embodiment in fig. 1. Fig. 3 is a schematic top view of an electrode pad of an embodiment. Referring to fig. 3, the point different from that in fig. 1 is that the protective layer 140 in fig. 3 also covers a portion of the surface of each tab 120, and the protective layer 140 covering the tab 120 is adjacent to the first side 111 of the current collector 110. The area of the tab 120 not covered by the protective layer 140 is an empty foil area 121, and the empty foil area 121 is used for connecting with the tab adapter. The area of the tab 120 area covered by the protective layer 140 may be set according to the need. In some embodiments, the protective layer 140 is bonded to the tab 120 by an adhesive layer disposed between the tab 120 and the protective layer 140 covering the tab.
The area covered by the protective layer may also be implemented as in fig. 4. Referring to a top view schematic of an electrode pad of another embodiment shown in fig. 4, unlike in fig. 3, the protective layer 140 in fig. 4 may be divided into a first part of protective layer 141, a second part of protective layer 142, and a third part of protective layer 143. Wherein, the first part of the protection layer 141 covers part of the surface of the tab 120 and is adjacent to the first side 111; the second part of the protection layer 142 covers a part of the first surface of the current collector and is adjacent to the first side 111; the third portion of the protective layer 143 is disposed opposite to the first portion of the protective layer 141 along the first direction D1, covers a portion of the first surface of the current collector and is adjacent to the second side 112, and the active material layer 130 is disposed between the first portion of the protective layer 141 and the second portion of the protective layer 142 along the first direction D1.
The third portion of the protective layer 143 may prevent burrs on the second side 112 from puncturing the diaphragm. The thickness of the protective layer may be less than, equal to, or greater than the thickness of the active material layer, in some embodiments, the thickness of the protective layer is 30% to 100% of the thickness of the active material layer
The electrode plate in the embodiment of the utility model can prevent burrs from puncturing the diaphragm, thereby avoiding short circuit of the battery; even if the burrs pierce the diaphragm, the protective layer can slow down the severity of the short circuit of the battery, thereby avoiding a great amount of heat generated by the battery due to the short circuit. In addition, compared with the insulating material, the protective layer has the characteristic of high heat dissipation coefficient, can improve the heat dissipation capacity of the electrode pole piece when the laser is used for cutting the electrode pole piece, and has less damage to a cutter when the cutter is used for cutting the electrode pole piece.
The utility model also provides a battery. The battery winding core of the battery is formed by winding a positive pole piece, a negative pole piece and a diaphragm. Wherein, the negative pole piece and the positive pole piece are the electrode pieces described in the utility model. The battery winding core may be assembled in a case (e.g., an aluminum case, a steel case, or a plastic case), and then subjected to baking, electrolyte injection, formation, and capacity division. The battery disclosed by the utility model can reduce the risk of short circuit of the battery; the severity of the battery short circuit can be slowed down when the short circuit occurs.
While the basic concepts have been described above, it will be apparent to those skilled in the art that the foregoing application disclosure is by way of example only and is not intended to be limiting. Although not explicitly described herein, various modifications, improvements and adaptations of the utility model may occur to one skilled in the art. Such modifications, improvements, and modifications are intended to be suggested within the present disclosure, and therefore, such modifications, improvements, and adaptations are intended to be within the spirit and scope of the exemplary embodiments of the present disclosure.
Meanwhile, the present utility model uses specific words to describe embodiments of the present utility model. Reference to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic is associated with at least one embodiment of the utility model. Thus, it should be emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various positions in this specification are not necessarily referring to the same embodiment. Furthermore, certain features, structures, or characteristics of one or more embodiments of the utility model may be combined as suitable.
In some embodiments, numbers describing the components, number of attributes are used, it being understood that such numbers being used in the description of embodiments are modified in some examples by the modifier "about," approximately, "or" substantially. Unless otherwise indicated, "about," "approximately," or "substantially" indicate that the number allows for a 20% variation. Accordingly, in some embodiments, numerical parameters set forth in the specification and claims are approximations that may vary depending upon the desired properties sought to be obtained by the individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and employ a method for preserving the general number of digits. Although the numerical ranges and parameters set forth herein are approximations in some embodiments for use in determining the breadth of the range, in particular embodiments, the numerical values set forth herein are as precisely as possible.
Claims (10)
1. An electrode sheet, comprising:
a current collector having a first side and a second side opposite in a first direction;
the electrode lugs are arranged at intervals along the second direction and are connected with the first side edge of the current collector;
an active material layer disposed on at least one surface of the current collector;
and the protective layer covers part of the surface of the current collector and is adjacent to the first side edge, wherein the forbidden bandwidth of the protective layer is 1 eV-6 eV.
2. The electrode tab of claim 1 wherein the protective layer also covers a portion of the surface of each tab and is adjacent the first side.
3. The electrode sheet of claim 1, wherein the protective layer is FeOOH, znO, al 2 O 3 Or ZrO(s) 2 。
4. The electrode tab of claim 1 or 2, further comprising an adhesive layer disposed between the current collector and the protective layer, and/or between the protective layer and the plurality of tabs.
5. The electrode pad of claim 4, wherein the adhesive layer is polyacrylic acid or polyimide.
6. The electrode pad of claim 1, wherein the protective layer interfaces with the active material layer in the first direction.
7. The electrode pad of claim 1, wherein the protective layer overlaps the active material layer in the first direction.
8. The electrode tab of claim 1 wherein a first partial protection layer covers a portion of the surface of the tab and is adjacent to the first side, a second partial protection layer covers a portion of the surface of the current collector and is adjacent to the first side, and a third partial protection layer covers a portion of the surface of the current collector and is adjacent to the second side, wherein the first partial protection layer is disposed opposite the third partial protection layer in the first direction.
9. The electrode tab of claim 1, wherein each of the tabs has an empty foil region on a side of the tab in the first direction away from the current collector.
10. A battery comprising an electrode sheet according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320920627.3U CN219832969U (en) | 2023-04-21 | 2023-04-21 | Electrode plate and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320920627.3U CN219832969U (en) | 2023-04-21 | 2023-04-21 | Electrode plate and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219832969U true CN219832969U (en) | 2023-10-13 |
Family
ID=88247729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320920627.3U Active CN219832969U (en) | 2023-04-21 | 2023-04-21 | Electrode plate and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219832969U (en) |
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2023
- 2023-04-21 CN CN202320920627.3U patent/CN219832969U/en active Active
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