CN218448355U - Battery with a battery cell - Google Patents
Battery with a battery cell Download PDFInfo
- Publication number
- CN218448355U CN218448355U CN202222829939.1U CN202222829939U CN218448355U CN 218448355 U CN218448355 U CN 218448355U CN 202222829939 U CN202222829939 U CN 202222829939U CN 218448355 U CN218448355 U CN 218448355U
- Authority
- CN
- China
- Prior art keywords
- battery
- battery cell
- cell
- case
- limiting
- 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.)
- Active
Links
Images
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
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model relates to a battery technology field provides a battery, include: a battery case; the battery cell is positioned in the battery shell; the inner surface of the battery shell is provided with a limiting part, the battery cell is in contact with the limiting part, and the battery cell is in contact with a plane provided with the limiting part, so that the limiting part limits the battery cell. The limiting part is arranged on the inner surface of the battery shell, the limiting part limits the battery cell, the probability of position deviation of the battery cell is reduced, therefore, the assembly efficiency and the structure yield of the battery cell can be improved, the limiting part can prevent the battery from being used, the battery cell shakes to cause other internal structures of the battery to be damaged or the connection failure, and the safety use performance of the battery is improved.
Description
Technical Field
The utility model relates to a battery technology field especially relates to a battery.
Background
Among the correlation technique, battery case's inside is provided with electric core, and the battery is using or the equipment in-process, if the position deviation takes place for electric core, causes structural damage easily or connects unstable scheduling problem.
SUMMERY OF THE UTILITY MODEL
The utility model provides a battery to improve the performance of battery.
The utility model provides a battery, include:
a battery case;
the battery cell is positioned in the battery shell;
the battery shell is provided with a limiting part on the inner surface, the battery cell is in contact with the limiting part, and the battery cell is in contact with a plane provided with the limiting part, so that the limiting part limits the battery cell.
The utility model discloses a battery of embodiment includes battery case and electric core, and electric core is located battery case, is provided with spacing portion through the internal surface at battery case, and spacing portion has realized spacing to electric core, reduces the probability that position deviation appears in electric core, thereby can improve the packaging efficiency and the structure yield of electric core, and set up spacing portion and can prevent in the battery use, electric core rocks the condition that leads to other structural damage of battery inside or connection inefficacy and appears, thereby the safety in service performance of battery has been improved.
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 so as 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 schematic illustration of a partial structure of a battery according to an exemplary embodiment;
FIG. 2 is a schematic diagram illustrating a partial structure of a battery according to an exemplary embodiment;
FIG. 3 is a partial schematic structural view of a first housing member of a battery according to an exemplary embodiment;
fig. 4 is a partial schematic view of a first housing member of a battery according to two exemplary embodiments.
The reference numerals are illustrated below:
10. a battery case; 11. a limiting part; 12. a first housing member; 13. a second housing member; 14. a boss portion; 20. an electric core; 30. the utmost point post subassembly.
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, references to "the" object or "an" object are also intended to mean one of possibly multiple such objects.
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 as a specific case by a person skilled in the art.
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.
An embodiment of the present invention provides a battery, please refer to fig. 1 to fig. 4, the battery includes: a battery case 10; a cell 20, the cell 20 being located within the battery case 10; the inner surface of the battery case 10 is provided with a limiting portion 11, the battery cell 20 is in contact with the limiting portion 11, and the battery cell 20 is in contact with a plane provided with the limiting portion 11, so that the limiting portion 11 limits the battery cell 20.
The utility model discloses a battery of embodiment includes battery casing 10 and electric core 20, electric core 20 is located battery casing 10, internal surface through at battery casing 10 is provided with spacing portion 11, and spacing portion 11 has realized spacing to electric core 20, reduce the probability that position deviation appears in electric core 20, thereby can improve the packaging efficiency and the structure yield of electric core 20, and set up in the spacing portion 11 can prevent the battery use, electric core 20 rocks the condition that leads to other inside structural damage of battery or connection inefficacy and appears, thereby the safety in use performance of battery has been improved.
It should be noted that the battery core 20 is located in the battery case 10, so that the battery case 10 achieves a protection effect on the battery core 20, and the battery core 20 is prevented from being damaged.
In the assembling process of the battery, due to the existence of the limiting part 11, the battery cell 20 can be positioned through the limiting part 11, so that the accurate positioning and installation of the battery cell 20 can be completed quickly, and the assembling efficiency of the battery is improved.
In the use process of the battery, the limiting part 11 limits the battery core 20, so that the relative position of the battery core 20 is relatively stable, and the problem of position deviation of the battery core 20 is reduced as much as possible, thereby avoiding the battery core 20 from colliding with other structures in the battery shell 10. Or, the battery cell 20 may be connected to the post assembly 30, and if the battery cell 20 has a large shaking problem, the battery cell 20 may be out of service at a position where the post assembly 30 is connected, so as to affect the normal use of the battery, and in this embodiment, because the limiting portion 11 realizes limiting the battery cell 20, the problem of connection failure between the battery cell 20 and the post assembly 30 may also be reduced.
The battery includes a cell 20 and an electrolyte, and is a minimum unit capable of performing electrochemical reactions such as charge/discharge. The cell refers to a unit formed by winding or laminating a stack including a first electrode, a separator, and a second electrode. When the first electrode is a positive electrode, the second electrode is a negative electrode. Wherein the polarities of the first electrode and the second electrode can be interchanged.
In one embodiment, the batteries are laminated batteries, which are convenient to pack and can be processed to obtain batteries with longer length.
Specifically, the battery cell 20 is a laminated battery cell, and the battery cell 20 has a first pole piece, a second pole piece opposite to the first pole piece in electrical property, and a diaphragm disposed between the first pole piece and the second pole piece, so that a plurality of pairs of the first pole piece and the second pole piece are stacked to form the laminated battery cell.
Or, electric core 20 is lamination formula electric core, lamination formula electric core piles up on battery case 10 is provided with the plane of spacing portion 11, electric core 20 can pile up on the plane that has spacing portion 11 promptly, this moment, when carrying out the piling up of first portion of piling up, spacing portion 11 has just formed good spacing to this portion of piling up, avoid first portion of piling up to take place the position skew, thereby can guarantee that the portion of piling up that follow-up piles up can accurately pile up and target in place, with this stack up efficiency and the precision of stacking up of improvement lamination formula electric core, and can save the follow-up process of placing electric core 20 on battery case 10, with this packaging efficiency who has improved the battery.
In some embodiments, the battery may be a wound battery, that is, a first pole piece, a second pole piece opposite to the first pole piece, and a diaphragm sheet disposed between the first pole piece and the second pole piece are wound to obtain a wound battery core.
The winding type battery cell can be placed on the battery shell 10 after being completed, and at this time, the limiting part 11 realizes position limitation on the winding type battery cell, so that the accuracy of installing the battery cell 20 on the battery shell 10 is improved.
In an embodiment, the limiting portion 11 may limit adjacent two sides of the battery cell 20, for example, the limiting portion 11 may have a substantially L-shaped structure, and one corner of the battery cell 20 corresponds to a corner of the L-shaped structure, so that the battery cell 20 may be limited by the L-shaped structure, and when the battery cell 20 is positioned, one corner of the battery cell 20 may contact the corner of the L-shaped structure, so as to quickly position the battery cell 20.
In an embodiment, the battery cell 20 is clamped in the limiting portion 11, so that the limiting capability of the limiting portion 11 on the battery cell 20 can be effectively improved, the battery cell 20 is prevented from shaking, and in the assembling process of the battery cell 20, the limiting portion 11 can well position the battery cell 20, so that the installation efficiency and the installation accuracy of the battery cell 20 are improved.
The battery cell 20 is clamped in the limiting portion 11, that is, the limiting portion 11 can at least limit two opposite sides of the limiting portion 11, so as to ensure that the battery cell 20 is reliably positioned.
In an embodiment, the limiting portion 11 is disposed around the circumferential outer surface of the battery cell 20, so that the limiting portion 11 can form a circumferentially closed limiting space, so that the battery cell 20 is located in the limiting space, and reliable limiting in the circumferential direction of the battery cell 20 is formed, rapid positioning can be achieved in the installation process of the battery cell 20, and good fixing and limiting on the battery cell 20 can also be achieved in the circumferentially closed limiting space in the use process of the battery.
Fig. 2 and fig. 3 show a part of the structure of the limiting portion 11, and the limiting portion 11 may form a circumferentially closed limiting space, so as to form a reliable limiting fixation for the battery cell 20, thereby improving the safety use performance of the battery.
In an embodiment, the limiting portion 11 may form a circumferentially non-closed structure, for example, the limiting portion 11 may limit opposite sides of the battery cell 20, as shown in fig. 4, the limiting portion 11 may limit opposite sides of the battery cell 20, so as to limit and protect the battery cell 20. Alternatively, the limiting portion 11 may have a substantially U-shaped structure, so that the battery cell 20 is limited in the space of the U-shaped structure.
It should be noted that the outer surface of the battery cell 20 includes an insulating film, and the insulating film is connected to the battery casing 10, so as to avoid unnecessary electrical connection between the battery cell 20 and the battery casing 10, and of course, in some embodiments, the battery cell 20 may be electrically connected to the battery casing 10 through a tab extending from the cell main body, but the cell main body may be in contact with the battery casing 10 through the insulating film. The inner surface of the battery case 10 may also be provided with a coating such as alumina (Al) 2 O 3 ) Zirconium oxide (ZrO) 2 ) And the like.
In one embodiment, the limiting portion 11 is a protrusion, and the protrusion contacts with the battery cell 20, so that the protrusion forms a reliable limit for the battery cell 20, and the protrusion may also enhance the structural strength of the battery case 10, thereby avoiding the problems of deformation or structural damage of the battery case 10, and thus improving the safety performance of the battery.
The inner surface of the battery shell 10 may be provided with a rib, so as to limit the battery cell 20. The ribs may be formed by a stamping process, for example, stamping the outer surface of the battery case 10 to form the ribs on the inner surface of the battery case 10 and a groove on the outer surface of the battery case. Alternatively, the ribs may be formed by material addition, for example, welding the ribs on the inner surface of the battery case 10.
In one embodiment, the battery case 10 includes a recess, and the recessed sidewall forms the limiting portion 11, that is, the limiting portion 11 may be a recessed sidewall, the battery cell 20 is located in the recess, and the recessed sidewall realizes reliable limiting of the battery cell 20, and the recessed sidewall may also strengthen the internal space of the battery case 10, so as to improve the component accommodation amount of the internal space of the battery, and to some extent, may be used to improve the energy density of the battery.
The inner surface of the battery case 10 forms a recess, so that the recess forms a reliable limit protection for the battery cell 20. The depression may be press-formed to form the convex portion 14 on the outer surface of the battery case 10 as shown in fig. 1, for example, by pressing the inner surface of the battery case 10 to form the depression on the inner surface of the battery case 10, and the outer surface of the battery case may form the convex portion 14, so that the structural reinforcement of the battery case 10 may be accomplished. Alternatively, the depressions may be formed by material removal, for example, by machining the depressions in the battery case, thereby reducing the weight of the battery case 10.
In one embodiment, as shown in fig. 1, the battery case 10 includes a first case member 12 and a second case member 13, and the first case member 12 and the second case member 13 are connected to each other, thereby achieving a hermetic protection of the battery cell 20.
In one embodiment, as shown in fig. 2 to 4, the first housing part 12 is a cover plate, the second housing part 13 is formed with a receiving cavity, and the cover plate is provided with a limiting portion 11, so that the cover plate can be used for limiting the battery cell 20, or the battery cell 20 can be laminated on the cover plate.
In some embodiments, the first housing piece 12 may be formed with a receiving cavity and the second housing piece 13 may be formed with a receiving cavity, both receiving cavities forming an effective receiving of the battery cells 20.
It should be noted that in some embodiments, it is not excluded that the first housing piece 12 or the second housing piece 13 having the receiving cavity is provided with the position-limiting portion 11, for example, the position-limiting portion 11 may be provided on the bottom wall of the receiving cavity. For example, the first housing part 12 is a cover plate, the second housing part 13 is formed with a receiving cavity, and the inner surface of the second housing part 13 opposite to the cover plate may be provided with the limiting part 11, so that the limiting part 11 forms an effective limit for the battery cell 20.
In one embodiment, the first housing piece 12 and the second housing piece 13 are welded to form a welding seam, so that the connection stability of the first housing piece 12 and the second housing piece 13 is ensured, the problem of connection failure in the use process of the battery is avoided, and the safe use performance of the battery is ensured.
The limiting part 11 is located between the battery cell 20 and the weld joint, so that the limiting part 11 can form a stop for the weld joint, and welding slag formed in the welding process of the first casing part 12 and the second casing part 13 is prevented from entering the battery shell 10, so that safety problems are caused, and heat formed in the welding process of the first casing part 12 and the second casing part 13 is also prevented from being transmitted to the battery cell 20 in a large quantity to influence the structure of the battery cell 20.
In an embodiment, the minimum distance between the welding seam and the limiting portion 11 is 0.5mm-5mm, so that on the basis of ensuring a reliable and safe distance between the welding seam and the battery cell 20, the increase of the volume of the battery case 10 due to an excessively large distance between the welding seam and the battery cell 20 can be avoided, and the volume energy density of the battery can be ensured to a certain extent.
When the minimum distance between the welding seam and the limiting part 11 is less than 0.5mm, the safety distance between the welding seam and the battery cell 20 cannot be ensured, and the welding energy may affect the battery cell 20 in the welding process of the first casing member 12 and the second casing member 13. And the minimum distance between the welding line and the stopper portion 11 is greater than 5mm, the size of the battery case 10 is increased, thereby affecting the integration of the battery case 10.
The minimum distance between the weld and the stop 11 may be 0.5mm, 0.55mm, 0.6mm, 0.7mm, 0.8mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 4.6mm, 4.7mm, 4.8mm, 4.9mm, or 5mm, etc.
In one embodiment, the thickness of the battery case 10 may be 0.1mm to 0.5mm, and the thickness of the battery case 10 may be 0.1mm, 0.15mm, 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mm, 0.45mm, or 0.5mm, etc.
In one embodiment, the battery case 10 may be made of stainless steel or aluminum, and has good corrosion resistance and sufficient strength. The battery case 10 is substantially rectangular.
It should be noted that the first housing part 12 and the second housing part 13 may be provided separately. In some embodiments, it is not excluded that the first and second housing parts 12, 13 may be a unitary structure, with the space for the cell being formed by stamping and subsequently being closed by welding.
It should be noted that the battery may be a square battery, that is, the battery may be a quadrangular battery, and the quadrangular battery mainly refers to a prismatic battery whose shape is a straight line without strictly limiting whether each side of the prism is a strict straight line, and a corner between sides is not necessarily a right angle, and may be an arc transition. In certain embodiments, it is not excluded that the battery may be a cylindrical battery.
In one embodiment, the length of the cell is a,400mm a 2800mm, the width of the cell is b, the height of the cell is c,2b a 80b, and/or 0.5c b 20c.
Further, b is more than or equal to 80mm and less than or equal to 200mm, and c is more than or equal to 10mm and less than or equal to 100mm.
Preferably, 4 b.ltoreq.a.ltoreq.25 b, and/or 2 c.ltoreq.b.ltoreq.10 c.
In the battery of the above embodiment, the ratio of the length to the width of the battery is large, and further, the ratio of the width to the height of the battery is large, while ensuring sufficient energy density.
In one embodiment, the length of the battery is a, the width of the battery is b, and a is more than or equal to 4b and less than or equal to 7b, i.e. the ratio of the length to the width of the battery in the embodiment is larger, so that the energy density of the battery is increased, and the subsequent formation of the battery pack is facilitated.
In one embodiment, the height of the battery is c, b is more than or equal to 3c and less than or equal to 7c, and the ratio of the width to the height of the battery is larger, so that the battery is convenient to form under the condition of ensuring enough energy density.
Alternatively, the length of the cell may be 800mm to 1800mm, the width of the cell may be 80mm to 180mm, and the height of the cell may be 15mm to 35mm.
The length of the battery is a dimension in the battery length direction, the width of the battery is a dimension in the battery width direction, and the height of the battery is a dimension in the battery height direction, that is, the thickness of the battery.
An embodiment of the utility model also provides a group battery, including foretell battery.
The utility model discloses a group battery of embodiment includes the battery, the battery includes battery casing 10 and electric core 20, electric core 20 is located battery casing 10, internal surface through at battery casing 10 is provided with spacing portion 11, and spacing portion 11 has realized spacing to electric core 20, reduce electric core 20 and the off-position probability appears, thereby can improve electric core 20's packaging efficiency and structure yield, and set up spacing portion 11 and can prevent in the battery use, electric core 20 rocks and leads to the inside other structural damage of battery or the condition appearance that the connection became invalid, thereby the safety performance of group battery has been improved.
In one embodiment, the battery pack is a battery module or a battery pack.
The battery module includes a plurality of batteries, and the battery module may further include an end plate and a side plate for fixing the plurality of batteries.
It should be noted that a plurality of batteries can be arranged in the battery box after forming the battery module, and the plurality of batteries can be fixed through the end plate and the side plate. A plurality of batteries can directly set up in the battery box, need not to pack a plurality of batteries promptly, and at this moment, can get rid of end plate and curb plate.
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 within 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 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 present disclosure is limited only by the appended claims.
Claims (10)
1. A battery, comprising:
a battery case (10);
a battery cell (20), the battery cell (20) being located within the battery casing (10);
the battery shell (10) is provided with a limiting portion (11) on the inner surface, the battery core (20) is in contact with the limiting portion (11), and the battery core (20) is in contact with a plane provided with the limiting portion (11), so that the limiting portion (11) limits the battery core (20).
2. The battery according to claim 1, characterized in that, the electric core (20) is clamped in the limiting part (11).
3. The battery according to claim 1, wherein the stopper portion (11) is provided around a circumferential outer surface of the battery cell (20).
4. The battery according to claim 1, characterized in that the cells (20) are laminated cells stacked on a plane of the battery case (10) on which the stopper portion (11) is provided.
5. The battery according to claim 1, wherein the stopper portion (11) is a protrusion.
6. The battery according to claim 1, wherein the battery case (10) includes a recess, and a side wall of the recess forms the stopper portion (11).
7. The battery according to claim 6, wherein the depressions are stamped and formed to form protrusions (14) on the outer surface of the battery case (10).
8. The battery according to any one of claims 1 to 7, wherein the battery case (10) comprises a first case member (12) and a second case member (13), the first case member (12) and the second case member (13) being connected;
the first shell piece (12) is a cover plate, and the limiting part (11) is arranged on the cover plate.
9. The battery according to claim 8, wherein the first and second case members (12, 13) are welded to form a weld;
wherein the limiting part (11) is positioned between the battery cell (20) and the welding seam.
10. The battery according to claim 9, wherein the minimum distance between the weld and the stopper (11) is 0.5mm-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222829939.1U CN218448355U (en) | 2022-10-26 | 2022-10-26 | Battery with a battery cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222829939.1U CN218448355U (en) | 2022-10-26 | 2022-10-26 | Battery with a battery cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218448355U true CN218448355U (en) | 2023-02-03 |
Family
ID=85071323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222829939.1U Active CN218448355U (en) | 2022-10-26 | 2022-10-26 | Battery with a battery cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218448355U (en) |
-
2022
- 2022-10-26 CN CN202222829939.1U patent/CN218448355U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216850226U (en) | Battery pack | |
| CN216850253U (en) | Battery and battery pack | |
| CN114421101A (en) | Battery and battery pack | |
| CN114639926A (en) | Battery and method for assembling battery | |
| CN218448355U (en) | Battery with a battery cell | |
| CN219476835U (en) | Battery and battery pack | |
| CN217881827U (en) | Battery with a battery cell | |
| CN217589313U (en) | Battery with a battery cell | |
| CN216980824U (en) | Battery with a battery cell | |
| CN114725477A (en) | Battery cell unit, battery and assembly method of battery | |
| CN115051122A (en) | Battery with a battery cell | |
| CN114899548A (en) | Battery with a battery cell | |
| CN216980648U (en) | Battery cell unit and battery | |
| CN218632346U (en) | Battery case and battery | |
| CN220585445U (en) | Battery cell | |
| CN219759863U (en) | Battery and battery pack | |
| CN220544056U (en) | Battery cell | |
| CN217589344U (en) | Battery with a battery cell | |
| CN220553577U (en) | Battery cell | |
| CN220544183U (en) | Battery cell | |
| CN219779132U (en) | Battery cell | |
| CN217507564U (en) | Battery with a battery cell | |
| CN220121880U (en) | Battery cell and battery | |
| CN216850247U (en) | Battery and battery pack | |
| CN218448152U (en) | Battery with a battery cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |