CN218101553U - Battery and battery device - Google Patents
Battery and battery device Download PDFInfo
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- CN218101553U CN218101553U CN202222337665.4U CN202222337665U CN218101553U CN 218101553 U CN218101553 U CN 218101553U CN 202222337665 U CN202222337665 U CN 202222337665U CN 218101553 U CN218101553 U CN 218101553U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model relates to a battery technology field provides a battery and battery device. The battery includes: the battery shell, the external surface of the battery shell has flange structure; the insulating layer is coated on the outer surface of the battery shell; the insulating layer includes a first portion and a second portion, the first portion covering at least a portion of the flange structure; the second portion covers the other portion of the battery case, and the thickness of the first portion is greater than the thickness of the second portion. This battery can be according to different regional characteristics, carry out regional coating through setting up first portion and second part to promote the insulating protective effect to the battery. Simultaneously, the thickness of first part is greater than the thickness of second part in this battery, can strengthen the protective effect to the flange structure, avoids the insulating layer on flange structure surface to lose efficacy because of colliding with to promote the insulating protective effect of insulating layer to the battery.
Description
Technical Field
The utility model relates to a battery technology field especially relates to a battery and battery device.
Background
In the prior art, a battery shell surface of a battery may be provided with a flange structure, and the flange structure is a structure protruding from the battery shell surface, so the flange structure is easily bumped. In addition, when grouping operation is performed, the battery needs to be fixed inside the battery box body, and the flange structure is also easily damaged, so that the surface insulating layer falls off, and insulation failure is caused.
SUMMERY OF THE UTILITY MODEL
The utility model provides a battery and battery device to promote the insulating protective effect to the battery.
In order to achieve the above purpose, the utility model provides the following technical scheme:
according to a first aspect of the present invention, there is provided a battery, comprising:
the battery comprises a battery shell, a battery cover and a battery cover, wherein the outer surface of the battery shell is provided with a flange structure;
the insulating layer is coated on the outer surface of the battery shell; the insulating layer includes a first portion and a second portion, wherein:
the first portion covers at least a portion of the flange structure; the second portion covers the other portion of the battery case, and the thickness of the first portion is greater than the thickness of the second portion.
In the battery provided by the application, the insulating layer is coated on the outer surface of the battery shell, the first part covers part or even all of the flange structure, the second part covers other parts of the battery shell, and the thickness of the first part covering the surface of the flange structure is larger than that of the second part covering other areas of the battery shell.
It should be noted that the battery provided by the application can be coated in different regions according to different region characteristics by arranging the first part and the second part, so that the insulation protection effect on the battery is improved. Simultaneously, the thickness of first part is greater than the thickness of second part in the battery that this application provided, can strengthen the protective effect to the flange structure, avoids the insulating layer on flange structure surface to lose efficacy because of colliding with in assembly or the use to can further promote the insulating protective effect of insulating layer to the battery.
According to a second aspect of the present application, there is provided a battery device comprising the battery provided in any of the above-mentioned aspects.
In the battery device provided by the application, the insulating layer in the battery is coated on the outer surface of the battery shell, the first part covers part or even all of the flange structure, the second part covers other parts of the battery shell, and the thickness of the first part covering the surface of the flange structure is larger than that of the second part covering other areas of the battery shell.
It should be noted that, in the battery device provided by the present application, the battery can be coated in different regions according to different region characteristics by providing the first portion and the second portion, so as to improve the insulation protection effect on the battery. Simultaneously, among the battery device that this application provided, the thickness of the first portion in the battery is greater than the thickness of second portion, can strengthen the protective effect to the flange structure, avoids the insulating layer on flange structure surface to lose efficacy because of colliding with in assembly or the use to can further promote the insulating protective effect of insulating layer to the battery.
Drawings
For a better understanding of the present disclosure, reference may be made to the embodiments illustrated in the following drawings. The components in the drawings are not necessarily to scale, and related elements may be omitted in order to emphasize and clearly illustrate the technical features of the present disclosure. In addition, the relevant elements or components may be arranged differently as is known in the art. Further, in the drawings, like reference characters designate the same or similar parts throughout the several views. Wherein:
fig. 1 is a cross-sectional view of a battery provided in an embodiment of the present application;
fig. 2 is a schematic perspective view of the battery case of fig. 1;
fig. 3 is an enlarged schematic view of a portion of the structure of fig. 2.
The reference numerals are illustrated below:
100. a battery case; 110. a first housing; 111. a body portion; 120. a second housing; 200. an insulating layer; 210. a first portion; 220. a second portion; p, a flange structure; r, arc chamfering; s1, a first surface; s2, a second surface.
Detailed Description
The technical solutions in the exemplary embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the exemplary embodiments of the present disclosure. The example embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present disclosure, and it is, therefore, to be understood that various modifications and changes may be made to the example embodiments without departing from the scope of the present disclosure.
In the description of the present disclosure, unless otherwise explicitly specified or limited, the terms "first", "second", and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more; the term "and/or" includes any and all combinations of one or more of the associated listed items. In particular, reference to "the" object or "an" object is also intended to mean one of many such objects possible.
The terms "connected," "secured," and the like are to be construed broadly and unless otherwise stated or indicated, and for example, "connected" may be a fixed connection, a removable connection, an integral connection, an electrical connection, or a signal connection; "connected" may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present disclosure can be understood by those skilled in the art as the case may be.
Further, in the description of the present disclosure, it is to be understood that the directional words "upper", "lower", "inner", "outer", etc., which are described in the exemplary embodiments of the present disclosure, are described at the angles shown in the drawings, and should not be construed as limiting the exemplary embodiments of the present disclosure. It will also be understood that, in this context, when an element or feature is referred to as being "on", "under", or "inner", "outer" with respect to another element(s), it can be directly on "," under ", or" inner "," outer "with respect to the other element(s), or indirectly on", "under", or "inner", "outer" with respect to the other element(s) via intervening elements.
In a first aspect, an embodiment of the present application provides a battery. Fig. 1 is a cross-sectional view of a battery provided in an embodiment of the present application; fig. 2 is a schematic perspective view of the battery case 100 in fig. 1; fig. 3 is a partially enlarged view of fig. 2. As shown in fig. 1 to 3, the battery provided in the embodiment of the present application includes:
a battery case 100, an outer surface of the battery case 100 being provided with a flange structure P;
the insulating layer 200, the insulating layer 200 is coated on the external surface of the battery case 100; the insulating layer 200 includes a first portion 210 and a second portion 220, wherein:
the first portion 210 covers at least part of the flange structure P; the second portion 220 covers the other portions of the battery case 100, and the thickness of the first portion 210 is greater than that of the second portion 220.
Specifically, in the battery provided in the embodiment of the present application, the insulating layer 200 is coated on the outer surface of the battery case 100, the first portion 210 covers part, or even all, of the flange structure P, and the second portion 220 covers other portions of the battery case 100. It is noted that the thickness of the first portion 210 covering the surface of the flange structure P is greater than the thickness of the second portion 220 covering other areas of the battery case 100.
It should be noted that, in the battery provided in the embodiment of the present application, by providing the first portion 210 and the second portion 220, the coating in different regions can be performed according to different regional characteristics, so as to improve the insulation protection effect on the battery. Simultaneously, the thickness of first part 210 is greater than the thickness of second part 220 in the battery that this application embodiment provided, can strengthen the protective effect to flange structure P, avoids the insulating layer 200 on flange structure P surface to lose efficacy because of colliding with in assembly or the use to can further promote the insulating protective effect of insulating layer 200 to the battery.
It is to be understood that the flange structure P may serve as a functional structure to facilitate the preparation of the battery case 100 or the fixation of the battery. Of course, the flange structure P can also be used as a decorative structure, and details thereof are not repeated.
It should be noted that, in the process of forming the insulating layer 200, the thicknesses of the first portion 210 and the second portion 220 need to be considered to ensure the insulating protection effect for the battery.
In one embodiment, the thickness of the second portion 220 ranges from 70 μm to 130 μm.
It should be noted that the thickness of the second portion 220 is too thin, which is prone to cause insulation failure; the second portion 220 is too thick, which increases the weight of the battery and occupies too much volume. Thus, when the thickness of the second portion 220 is set to be in the range of 70 μm to 130 μm, the insulation effect, the weight, and the volume influence can be well balanced.
Illustratively, the thickness of the second portion 220 may be selected to be any one of the following values:
70μm、72.5μm、75μm、77.5μm、80μm、82.5μm、85μm、87.5μm、90μm、92.5μm、95μm、97.5μm、100μm、102.5μm、105μm、107.5μm、110μm、112.5μm、115μm、117.5μm、120μm、122.5μm、125μm、127.5μm、130μm。
when the first portion 210 is prepared, the thickness of the first portion 210 is controlled to be greater than that of the second portion 220, so as to optimize the insulation protection effect of the insulation layer 200 on the battery. In one embodiment, there may be provided: the ratio of the thickness of the first portion 210 to the thickness of the second portion 220 ranges from 1.2 to 3.5.
It should be noted that if the ratio of the thicknesses of the first portion 210 and the second portion 220 is too small, the thickness of the first portion 210 is too thin, which is likely to cause insulation failure; if the ratio of the thicknesses of the first portion 210 and the second portion 220 is too large, the thickness of the first portion 210 is too thick, the weight of the battery is increased, and the battery occupies too much volume. Thus, when the ratio of the thickness of the first portion 210 to the thickness of the second portion 220 is set in the range of 1.2 to 3.5, the insulation effect, the weight, and the volume influence can be well balanced.
Illustratively, the ratio of the thickness of the first portion 210 to the thickness of the second portion 220 may be selected to be any one of the following values:
1.2、1.25、1.3、1.35、1.4、1.45、1.5、1.55、1.6、1.65、1.7、1.75、1.8、1.85、1.9、1.95、2.0、2.05、2.1、2.15、2.2、2.25、2.3、2.35、2.4、2.45、2.5、2.55、2.6、2.65、2.7、2.75、2.8、2.85、2.9、2.95、3.0、3.05、3.1、3.15、3.2、3.25、3.3、3.35、3.4、3.45、3.5。
when the first portion 210 is specifically provided, there are many possibilities for the structure of the first portion 210, at least one of the following structures.
In one embodiment, the first portion 210 has a single-layer structure along a thickness direction of the first portion 210.
It should be noted that, when the first portion 210 is prepared, it can be formed at one time, so as to simplify the preparation process and improve the preparation efficiency.
In a particular embodiment, one of the first portion 210 or the second portion 220 may be prepared to form first, and then the other. For example, in the case of preparing the first portion 210, an insulating material may be sprayed or coated on the flange structure P to form the first portion 210, for example, to form the first portion 210 with a thickness of 100 μm. It is noted that during the preparation of the first portion 210, the second portion 220 is not prepared. Thereafter, the second portion 220 is separately prepared to form the structure as shown in fig. 1.
Of course, different devices can be used to prepare the first portion 210 and the second portion 220 simultaneously, and detailed description thereof is omitted here.
It should be understood that the wrapping form of the first portion 210 and the second portion 220 at the outer surface of the battery case 100 is not limited to the structure shown in fig. 1, fig. 1 is merely an exemplary illustration, and the first portion 210 may also be transitionally connected at the intersection with the second portion 220. In other words, the thickness of the first portion 210 at some positions may be set to be greater than the thickness of the second portion 220, and the thickness of the first portion 210 at some positions is equal to the thickness of the second portion 220.
In one embodiment, the first portion 210 includes a plurality of coating sublayers stacked along a thickness direction of the first portion 210.
It should be noted that, when the first portion 210 includes a plurality of coating sub-layers, the preparation material of each coating sub-layer may be selected separately to optimize the insulating protection effect of the insulating layer 200 on the battery.
It is understood that "plurality" means at least two; when the materials for preparing the plurality of coating sublayers are the same, the first portion 210 may not visually identify the boundary between the coating sublayers in appearance, and detailed description thereof is omitted here.
In particular, when the first portion 210 is prepared, at least one of the plurality of coating sublayers may be provided of the same material as the second portion 220 to further simplify the preparation process.
The first portion 210 including two coating sublayers is now schematically illustrated, and the details are as follows:
in preparing the insulating layer 200, a coating sub-layer for forming the first portion 210 may be prepared; thereafter, the second part 220 is prepared and, simultaneously with the preparation of the second part 220, another coating sublayer of the first part 210 is formed, which newly prepared coating sublayer would cover the coating sublayer prepared in the previous step, both coating sublayers forming the final first part 210.
For example, if the thickness of the first portion 210 is 100 μm, a certain thickness of the insulating material may be sprayed or coated on the surface of the flange structure P to form a coating sub-layer of the first portion 210, for example, a coating sub-layer with a thickness of 30 μm is prepared; thereafter, the surface of the battery case 100 was entirely sprayed to form the second portion 220 of 70 μm thickness on the surface of the battery case 100. It is noted that, when the second portion 220 is formed, a new coating sublayer having a thickness of 70 μm is coated on the surface of the coating sublayer prepared in the previous step, and at this time, the first portion 210 is formed. Specifically, the first portion 210 includes a coating sub-layer 30 μm thick and a coating sub-layer 70 μm thick formed subsequently, in the thickness direction.
It should be understood that in the above operation, the material of the second portion 220 and the coating sub-layer formed simultaneously therewith is the same, and the material of the second portion 220 and the coating sub-layer formed in the previous step may be the same or different.
Of course, other ways of forming the insulating layer 200 may also be used. Illustratively, the battery case 100 may be integrally sprayed to form the second portion 220 and a coating sublayer; thereafter, at the separate spray-coating flange structure P, a new coating sublayer is formed, the first portion 210 being formed by two coating sublayers.
In providing the structure of the battery case 100, there are many possibilities of the structure of the battery case 100, at least one of the following structures.
In one embodiment, with continued reference to the structure shown in fig. 1 to 3, the battery case 100 includes a first case 110 and a second case 120, wherein the first case 110 has an opening; the second housing 120 is snap-fitted to the opening; the second shell 120 is used for buckling the edge of the opening, and/or the first shell 110 forms the edge of the opening to form a flange structure P;
the first portion 210 covers the flange structure P and the second portion 220 covers the rest of the battery case 100.
It should be noted that, in the battery provided in the embodiment of the present application, by providing the first portion 210 and the second portion 220, the battery can be coated in different regions according to different region characteristics, so as to improve the insulation protection effect on the battery. Simultaneously, in the battery that this application embodiment provided, the thickness of first portion 210 is greater than the thickness of second portion 220, can strengthen the protective effect to flange structure P, avoids the insulating layer 200 on flange structure P surface to lose efficacy because of colliding with in assembly or the use to can further promote the insulating protective effect of insulating layer 200 to the battery.
Specifically, when the flange structure P is provided, in a specific embodiment, the flange structure P is formed at the edge of the opening formed by the first shell 110, and the second shell 120 is only used for buckling the opening; in another specific embodiment, the second housing 120 is used for snapping the edge of the opening to form a flange structure P, and the edge of the first housing 110 is only used as the edge of the opening.
Of course, it is also possible to provide: the edge of the first housing 110 forming the opening and the edge of the second housing 120 for snapping the opening are both used to form a flange structure P, as shown in fig. 1 for example. It should be understood that this structure can improve the sealing performance of the battery case 100 after the second case 120 is fastened to the opening of the first case 110.
It should be noted that the cell, the electrolyte, and the like are disposed in the cavity formed by the first casing 110, and detailed description thereof is omitted. In a specific configuration, the second housing 120 may be made of aluminum.
In another embodiment, the battery case 100 is integrally formed by punching or pressing, and the flange structure P is formed after the punching or pressing.
In one embodiment, with continuing reference to the structures shown in fig. 1 to fig. 3, the outer surface of the battery case 100 includes two first surfaces S1 disposed opposite to each other and four second surfaces S2 disposed around the first surfaces S1, wherein the area of the second surfaces S2 is smaller than that of the first surfaces S1; the first housing 110 forms one first surface S1 and four second surfaces S2, and the second housing 120 forms the other first surface S1.
Illustratively, as shown in fig. 2, the battery case 100 may have a substantially rectangular parallelepiped shape. Specifically, the area of the first surface S1 may be larger than that of the second surface S2, forming a large surface of the battery; every two second surfaces S2 of the four second surfaces S2 are oppositely arranged; and of the four second surfaces S2, two second surfaces S2 have a larger area, and two second surfaces S2 have a smaller area.
It should be noted that when placing the battery, one of the second surfaces S2 with a larger area may be used as the bottom surface of the battery, and correspondingly, the other second surface S2 with a larger area may be used as the top surface of the battery. Meanwhile, the other two second surfaces S2 having smaller areas form the sides of the battery. Illustratively, the two second surfaces S2 having a larger area are arranged in the width direction, and the two second surfaces S2 having a smaller area are arranged in the length direction.
Referring to the structure shown in fig. 3 in conjunction with fig. 2, in one embodiment, the flange structures P are disposed around the battery case 100 and are located at the edges of each of the second surfaces S2 and one of the first surfaces S1.
It should be noted that when the flange structures P are disposed on each second surface S2, the preparation operation of the battery case 100 can be facilitated, and the battery case 100 can be fixed or positioned with other structures.
It should be noted that only one, two, or three of the four second surfaces S2 may be provided with the flange structures P, which may be specifically provided as required, and will not be described herein again.
Of course, the flange structure P provided on the second surface S2 may be a complete continuous structure as shown in fig. 2, and may also be formed by a plurality of spaced protrusions; when the flange structures P are simultaneously disposed on the plurality of second surfaces S2, the flange structures P between different second surfaces S2 may be continuous or interrupted.
In one embodiment, the first housing 110 includes a body portion 111 and a flange (not shown), the body portion 111 is provided with an opening, the flange is connected to the body portion 111, forms an edge of the opening, and the flange forms at least part of the flange structure P; an arc-shaped chamfer R is arranged between the body part 111 and the flanging.
It should be noted that by providing the arc-shaped chamfer R, the flange structure P can be easily prepared on the surface of the battery case 100, and the structural strength of the battery case 100 formed with the flange structure P can be improved.
In addition, through setting up arc chamfer R, can avoid battery casing 100 internal surface to form closed angle, fish tail battery casing 100 interior electric core in corresponding flange structure P root department to can promote the security performance of battery.
When the insulating layer 200 is formed outside the battery case 100, there may be provided: the first portion 210 covers the flange structure P and the arc-shaped chamfer R, and the second portion 220 covers the other portions of the battery case 100.
It should be noted that the structural arrangement is such that the first portion 210 can extend to the arc-shaped chamfer R after covering the flange structure P, thereby ensuring the protective effect of the insulating layer 200 on the flange structure P.
Of course, the first portion 210 may also extend to a side of the arc-shaped chamfer R away from the flange structure P, and cover other portions, which may be specifically set as required, and will not be described herein again.
In one embodiment, with continuing reference to the structure shown in fig. 2 and 3, the first housing 110 further has a recessed portion, the recessed portion is disposed on a side of the main body portion away from the opening and recessed inward from an outer surface of the main body portion, and the recessed portion is located at an end portion of the first housing.
In one embodiment, the second case 120 is provided with two electrode terminals disposed oppositely.
It is noted that a cell is provided in the battery case 100, and the cell is connected to each electrode terminal.
It is understood that each cell includes electrode terminals of a first polarity and electrode terminals of a second polarity.
The electrode terminals of the first polarity are opposite in polarity to the electrode terminals of the second polarity, and are insulated from each other. Specifically, when the electrode terminal of the first polarity is a positive terminal, the electrode terminal of the second polarity is a negative terminal, whereas when the electrode terminal of the first polarity is a negative terminal, the electrode terminal of the second polarity is a positive terminal.
Specifically, the surface of the battery casing 100 may be provided with one protruding electrode terminal (terminal) on the surface, or may be provided with two protruding electrode terminals (terminal) on the surface of the casing, which may be specifically set as required, and is not repeated herein.
When a plurality of cells are stacked, the first case 110 of the latter cell is opposite to the second case 120 of the former cell, and at least a portion of the electrode terminal of one cell among the adjacent two cells is disposed in the recess of the other cell.
In a second aspect, an embodiment of the present application further provides a battery device, including the battery provided in any of the above technical solutions.
Specifically, in the battery device provided in the embodiment of the present application, the insulating layer 200 inside the battery is coated on the outer surface of the battery case 100, the first portion 210 covers part, or even all, of the flange structure P, the second portion 220 covers other parts of the battery case 100, and the thickness of the first portion 210 covering the surface of the flange structure P is greater than the thickness of the second portion 220 covering other areas of the battery case 100.
It should be noted that, in the battery device provided in the embodiment of the present application, the battery can be coated in different regions according to different region characteristics by providing the first portion 210 and the second portion 220, so as to improve the insulation protection effect for the battery. Simultaneously, among the battery device that this application embodiment provided, the thickness of first part 210 in the battery is greater than the thickness of second part 220, can strengthen the protective effect to flange structure P, avoids the insulating layer 200 of flange structure P department to lose efficacy because of colliding with in assembly or the use to can further promote the insulating protective effect of insulating layer 200 to the battery.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice in the art to which the disclosure pertains. It is intended that the specification and example embodiments be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims. It will be understood that the present disclosure is not limited to the precise arrangements that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the disclosure is limited only by the appended claims.
Claims (8)
1. A battery, comprising:
the battery comprises a battery shell, wherein a flange structure is arranged on the outer surface of the battery shell;
the insulating layer is coated on the outer surface of the battery shell; the insulating layer includes a first portion and a second portion, wherein:
the first portion covers at least a portion of the flange structure; the second portion covers the other portion of the battery case, and the thickness of the first portion is greater than the thickness of the second portion.
2. The battery of claim 1, wherein the thickness of the second portion is in a range of 70 μ ι η to 130 μ ι η.
3. The battery of claim 2, wherein a ratio of the thickness of the first portion to the thickness of the second portion ranges from 1.2 to 3.5.
4. The battery of claim 3, wherein the first portion is a single layer structure in a thickness direction of the first portion.
5. The battery of claim 3, wherein the first portion comprises a plurality of coating sublayers arranged in a stack along a thickness direction of the first portion.
6. The battery according to any one of claims 1 to 5,
the battery shell comprises a first shell and a second shell, wherein the first shell is provided with an opening, and the second shell is buckled with the opening; the second shell is used for buckling the edge of the opening, and/or the first shell forms the edge of the opening to form the flange structure;
the first portion covers the flange structure and the second portion covers the remainder of the battery case.
7. The battery of claim 6, wherein the first housing includes a body portion provided with the opening and a flange connected to the body portion forming an edge of the opening, the flange forming at least part of the flange structure; an arc chamfer is arranged between the body part and the flanging;
the first portion covers the flange structure and the arcuate chamfer and the second portion covers the other portion of the battery case.
8. A battery device comprising a battery according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222337665.4U CN218101553U (en) | 2022-09-02 | 2022-09-02 | Battery and battery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222337665.4U CN218101553U (en) | 2022-09-02 | 2022-09-02 | Battery and battery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218101553U true CN218101553U (en) | 2022-12-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222337665.4U Active CN218101553U (en) | 2022-09-02 | 2022-09-02 | Battery and battery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218101553U (en) |
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2022
- 2022-09-02 CN CN202222337665.4U patent/CN218101553U/en active Active
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