CN220138467U - Battery and battery device - Google Patents
Battery and battery device Download PDFInfo
- Publication number
- CN220138467U CN220138467U CN202321553608.8U CN202321553608U CN220138467U CN 220138467 U CN220138467 U CN 220138467U CN 202321553608 U CN202321553608 U CN 202321553608U CN 220138467 U CN220138467 U CN 220138467U
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- battery
- height
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- battery cell
- shell
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- 210000004027 cell Anatomy 0.000 claims description 82
- 230000000712 assembly Effects 0.000 claims description 11
- 238000000429 assembly Methods 0.000 claims description 11
- 210000005056 cell body Anatomy 0.000 claims description 10
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 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 Mounting, Suspending (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model relates to the technical field of batteries, in particular to a battery and a battery device, wherein the battery comprises a shell, a battery core and two cover plate components, wherein the two ends of the shell in a first direction are opened, the battery core is accommodated in a cavity of the shell, the battery core comprises a top surface, a bottom surface, two first side surfaces and two second side surfaces, the two first side surfaces and the two second side surfaces are connected between the top surface and the bottom surface, the two first side surfaces are arranged at intervals along the first direction and are respectively perpendicular to the first direction, the surface area of the second side surface is larger than the surface area of the first side surface, the two cover plate components are respectively arranged at the openings at the two ends of the shell, and the cover plate components are provided with pole components; the ratio of the thickness of the battery core in the thickness of the cavity is 0.8-0.99 along the second direction, and the ratio of the height of the battery core in the height of the cavity is 0.9-0.99 along the height direction. Through the structural design, the battery cell can be conveniently put into the shell, friction between the battery cell and the shell is avoided, meanwhile, the energy density of the battery can be ensured, and in addition, shaking of the battery cell in the cavity of the shell can be reduced.
Description
Technical Field
The present utility model relates to the field of battery technologies, and in particular, to a battery and a battery device.
Background
In the case of the prior art design of batteries using openings on both sides of the housing, the battery cells need to be inserted into the housing in the longitudinal direction during the battery assembly process. However, the size design of the battery core and the housing cavity in the conventional battery is insufficient, for example, the ratio of the thickness or the width of the battery core in the thickness or the width of the cavity is too small, so that the difficulty of housing is high, the battery core is damaged even if the battery core is rubbed with the housing, and for example, the ratio of the thickness or the width of the battery core in the thickness or the width of the cavity is too large, so that the energy density of the battery is reduced, and the problem of shaking of the battery core is generated.
Disclosure of Invention
It is a primary object of the present utility model to overcome at least one of the above-mentioned drawbacks of the prior art and to provide a battery that avoids friction between the cells and the casing and that combines energy density.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
according to one aspect of the present utility model, there is provided a battery, comprising a case, a battery cell and two cap assemblies, wherein the case is open at both ends in a first direction, the battery cell is accommodated in a cavity of the case, the battery cell includes a top surface, a bottom surface, and two first side surfaces and two second side surfaces connected between the top surface and the bottom surface, the two first side surfaces are arranged at intervals along the first direction and perpendicular to the first direction respectively, the two second side surfaces are arranged at intervals along a second direction perpendicular to the first direction and perpendicular to the second direction respectively, a surface area of the second side surface is larger than a surface area of the first side surface, the two cap assemblies are arranged at the open at both ends of the case respectively, and at least one cap assembly is provided with a post assembly; the ratio of the thickness of the battery cell in the thickness of the cavity is 0.8-0.99 along the second direction, and the ratio of the height of the battery cell in the height of the cavity is 0.9-0.99 along the height direction.
According to the technical scheme, the battery provided by the utility model has the advantages and positive effects that:
the battery provided by the utility model comprises a shell and a battery cell, wherein the shell adopts a structure with two open ends, and the battery cell is accommodated in a cavity of the shell. Wherein, the ratio of the thickness of the battery core in the thickness of the shell cavity is 0.8-0.99, and the ratio of the height of the battery core in the height of the shell cavity is 0.9-0.99. Through the structural design, a reasonable range of gaps are reserved between the battery cell and the shell in the thickness direction and the height direction, the battery cell can be conveniently installed in the shell in the battery manufacturing process, friction between the battery cell and the shell is avoided, meanwhile, the energy density of the battery can be ensured, in addition, shaking of the battery cell in the cavity of the shell can be reduced, and the electric performance and the structural stability of the battery can be improved.
Another principal object of the present utility model is to overcome at least one of the above-mentioned drawbacks of the prior art, and to provide a battery device including the above-mentioned battery.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
according to another aspect of the present utility model, there is provided a battery device including the battery set forth in the present utility model.
As can be seen from the above technical solutions, the battery device provided by the present utility model has the following advantages and positive effects:
according to the battery device provided by the utility model, friction between the battery core and the shell when the battery core is put into the shell can be avoided, meanwhile, the energy density of the battery can be ensured, in addition, shaking of the battery core in the cavity of the shell can be reduced, and the electric performance and the structural stability of the battery can be improved.
Drawings
Various objects, features and advantages of the present utility model will become more apparent from the following detailed description of the preferred embodiments of the utility model, when taken in conjunction with the accompanying drawings. The drawings are merely exemplary illustrations of the utility model and are not necessarily drawn to scale. In the drawings, like reference numerals refer to the same or similar parts throughout. Wherein:
fig. 1 is a schematic perspective view of a battery according to an exemplary embodiment;
fig. 2 is an exploded perspective view of the battery shown in fig. 1;
fig. 3 is a schematic cross-sectional view of the battery shown in fig. 1;
fig. 4 is a schematic perspective view of the battery cell shown in fig. 2.
The reference numerals are explained as follows:
100. a housing;
101. a cavity;
200. a battery cell;
201. a top surface;
202. a first side;
203. a second side;
210. a cell body;
220. a tab;
300. a cover plate assembly;
310. a pole assembly;
D1. thickness;
D2. thickness;
H1. height of the steel plate;
H2. height of the steel plate;
l, length;
x, a first direction;
y, the second direction;
z. height direction.
Detailed Description
Exemplary embodiments that embody features and advantages of the present utility model are described in detail in the following description. It will be understood that the utility model is capable of various modifications in various embodiments, all without departing from the scope of the utility model, and that the description and drawings are intended to be illustrative in nature and not to be limiting.
In the following description of various exemplary embodiments of the utility model, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various exemplary structures, systems, and steps in which aspects of the utility model may be practiced. It is to be understood that other specific arrangements of parts, structures, example devices, systems, and steps may be utilized and structural and functional modifications may be made without departing from the scope of the present utility model. Moreover, although the terms "over," "between," "within," and the like may be used in this description to describe various exemplary features and elements of the utility model, these terms are used herein for convenience only, e.g., in terms of the orientation of the examples depicted in the drawings. Nothing in this specification should be construed as requiring a particular three-dimensional orientation of the structure in order to fall within the scope of the utility model.
Referring to fig. 1, a schematic perspective view of a battery according to the present utility model is representatively illustrated. In this exemplary embodiment, the battery proposed by the present utility model is described as being applied to a vehicle-mounted battery as an example. Those skilled in the art will readily appreciate that many modifications, additions, substitutions, deletions, or other changes may be made to the specific embodiments described below in order to adapt the relevant designs of the present utility model to other types of battery devices, and such changes are still within the principles of the battery presented herein.
As shown in fig. 1, in an embodiment of the present utility model, a battery according to the present utility model includes a case 100, a battery cell 200, and two cap assemblies 300. Referring to fig. 2-4 in conjunction, there is representatively illustrated in fig. 2 an exploded perspective view of a battery capable of embodying the principles of the present utility model, wherein the cover assembly 300 is shown in particular in an exploded configuration separated from the housing 100 and the battery cell 200 is removed from an open portion at one end of the housing 100; a schematic cross-sectional view of a battery capable of embodying the principles of the present utility model is representatively illustrated in fig. 3; a schematic perspective view of the cell 200 is representatively illustrated in fig. 4. The structure, connection mode and functional relationship of the main components of the battery according to the present utility model will be described in detail with reference to the above drawings.
As shown in fig. 1 to 4, in an embodiment of the present utility model, the housing 100 is open at both ends in the first direction X. The battery cell 200 is accommodated in the cavity 101 of the housing 100, and the battery cell 200 includes a top surface 201, a bottom surface, and two first side surfaces 202 and two second side surfaces 203 connected between the top surface 201 and the bottom surface, the two first side surfaces 202 are spaced apart along the first direction X and are perpendicular to the first direction X, the two second side surfaces 203 are spaced apart along the second direction Y and are perpendicular to the second direction Y, the first direction X is perpendicular to the second direction Y, and the surface area of the second side surface 203 of the battery cell 200 is larger than the surface area of the first side surface 202, i.e., the second side surface 203 of the battery cell 200 is a "large surface". The two cover plate assemblies 300 are respectively disposed at openings at two ends of the housing 100, and at least one cover plate assembly 300 is provided with a pole assembly 310. On the basis, in the second direction Y, the ratio of the thickness D1 of the battery cell 200 to the thickness D2 of the cavity 101 is 0.8 to 0.99, for example, 0.8, 0.85, 0.88, 0.9, 0.91, 0.93, etc., and in the height direction Z, the ratio of the height H1 of the battery cell 200 to the height H1 of the cavity 101 is 0.9 to 0.99, for example, 0.9, 0.92, 0.93, 0.94, etc. Through the structural design, a reasonable range of gaps are reserved between the battery cell 200 and the shell 100 in the thickness direction and the height direction Z, so that the battery cell 200 can be conveniently installed into the shell 100 in the battery manufacturing process, friction between the battery cell 200 and the shell 100 is avoided, meanwhile, the energy density of a battery can be ensured, in addition, shaking of the battery cell 200 in the cavity 101 of the shell 100 can be reduced, and the electric performance and the structural stability of the battery can be improved.
As shown in fig. 3, in an embodiment of the present utility model, the ratio of the thickness D1 of the battery cell 200 in the thickness D2 of the cavity 101 along the second direction Y may be further 0.95 to 0.99, for example, 0.95, 0.96, 0.97, 0.98, 0.99, etc. Through the above structural design, the utility model can further avoid the problems of battery energy density reduction and battery cell 200 shaking caused by too small ratio of thickness D1 of the battery cell 200, and can further avoid the problems of high difficulty in housing the battery cell 200 and easy friction with the housing 100 caused by too large ratio of thickness D1 of the battery cell 200. In some embodiments, the ratio of the thickness D1 of the battery cell 200 in the thickness D2 of the cavity 101 may be less than 0.95, for example, 0.94, etc., which is not limited to the present embodiment.
As shown in fig. 3, in an embodiment of the present utility model, the ratio of the height H1 of the battery cell 200 to the height H2 of the cavity 101 may be further 0.96 to 0.99, for example, 0.96, 0.97, 0.98, 0.99, etc. along the height direction Z. Through the above structural design, the utility model can further avoid the problems of battery energy density reduction and battery cell 200 shaking caused by too small ratio of the height H1 of the battery cell 200, and can further avoid the problems of high difficulty in housing the battery cell 200 and easy friction with the shell 100 caused by too large ratio of the height H1 of the battery cell 200. Furthermore, the battery provided by the utility model adopts a structure design that the poles are led out from two sides, namely, the lugs 220 of the battery cell 200 are not arranged on the top surface 201 or the bottom surface of the battery cell 200, so that the battery cell 200 does not need to reserve an arrangement space for the lugs 220 in the height direction Z, and the height H1 ratio of the battery cell 200 can be further controlled in a more reasonable range. In some embodiments, the ratio of the height H1 of the battery cell 200 to the height H2 of the cavity 101 may be less than 0.96, for example, 0.95, etc., which is not limited to the embodiment.
In an embodiment of the present utility model, the ratio of the thickness D1 of the battery cell 200 in the thickness D2 of the cavity 101 may be smaller than the ratio of the height H1 of the battery cell 200 in the height H2 of the cavity 101. In other words, in the cross-sectional view shown in fig. 3, the aspect ratio of the rectangular cross-section of the battery cell 200 is greater than that of the rectangular cross-section of the cavity 101, which refers to the ratio of the length (i.e., the length in the height direction Z) to the width (i.e., the length in the second direction Y) of the rectangle to which the cross-section corresponds. In some embodiments, the ratio of the thickness D1 of the battery cell 200 to the thickness D2 of the cavity 101 may be equal to or greater than the ratio of the height H1 of the battery cell 200 to the height H2 of the cavity 101.
As shown in fig. 4, based on the structure of the battery cell 200 with "pole double-side extraction", in an embodiment of the present utility model, the length L of the battery cell 200 along the first direction X may be 200mm to 500mm, for example, 200mm, 300mm, 400mm, 500mm, etc., and the height of the battery cell 200 may be 50mm to 200mm, for example, 50mm, 100mm, 150mm, 200mm, etc. When the length and the height of the battery cell 200 are designed in the above numerical range, the second side 203 of the battery cell 200 is more similar to the shape of a long bar, and the thickness and the height of the battery cell 200 are designed in the thickness and the height of the cavity 101 of the housing 100 according to the specific ratio, so that the difficulty of housing the long bar-shaped battery cell 200 is significantly reduced.
In an embodiment of the utility model, the battery cell 200 may include a battery cell body 210 and two tabs 220, the two tabs 220 are respectively disposed on two first sides 202 of the battery cell body 210, the two cover assemblies 300 are respectively provided with a post assembly 310, and the two tabs 220 are respectively connected to the two post assemblies 310. Through the above structural design, the utility model can avoid the tab 220 of the battery cell 200 being disposed on the "large face" (i.e., the second side 203) of the battery cell body 210, thereby ensuring the heat exchange effect when the large face is used as a heat exchange surface. In some embodiments, the tab 220 may also be disposed on other surfaces of the battery cell body 210, which is not limited to the present embodiment.
In an embodiment of the present utility model, the battery cell 200 may further include an inner insulating film (not shown in the drawings) disposed on the top surface 201, the bottom surface and the two second side surfaces 203 of the battery cell body 210, that is, the inner insulating film is not disposed on the first side surface 202 of the battery cell body 210 where the tab 220 is disposed. Through the structural design, the insulation performance of other surfaces of the battery cell 200 except the lead-out surface of the tab 220 can be ensured by using the inner insulation film.
In one embodiment of the present utility model, the case 100 may be provided with an explosion-proof structure (not shown in the drawings) located at a wall of the case 100 corresponding to the bottom surface of the battery cell 200. Through above-mentioned structural design, when the battery produced thermal runaway, the battery can be through explosion-proof structure pressure release, promotes the security of battery according to this. In some embodiments, the explosion-proof structure may also be disposed on a wall of the housing 100 corresponding to the top surface 201 of the battery cell 200, which is not limited to the embodiment.
As shown in fig. 1 and 2, in an embodiment of the present utility model, two cap assemblies 300 are respectively provided with a post assembly 310, and the two post assemblies 310 are respectively connected with two tabs 220 of the battery cell 200. In some embodiments, only one cover plate assembly 300 may be provided with two pole assemblies 310, and the other cover plate assembly 300 is not provided with a pole assembly 310, which is not limited to this embodiment.
It should be noted herein that the batteries shown in the drawings and described in this specification are only a few examples of the wide variety of batteries that can employ the principles of the present utility model. It should be clearly understood that the principles of the present utility model are in no way limited to any details or any components of the battery shown in the drawings or described in this specification.
In summary, the battery according to the present utility model includes a housing 100 and a battery cell 200, wherein the housing 100 adopts a structure with two open ends, and the battery cell 200 is accommodated in a cavity 101 of the housing 100. Wherein, the ratio of the thickness of the battery cell 200 in the thickness of the cavity 101 of the housing 100 is 0.8-0.99, and the ratio of the height of the battery cell 200 in the height of the cavity 101 of the housing 100 is 0.9-0.99. Through the structural design, a reasonable range of gaps are reserved between the battery cell 200 and the shell 100 in the thickness direction and the height direction Z, so that the battery cell 200 can be conveniently installed into the shell 100 in the battery manufacturing process, friction between the battery cell 200 and the shell 100 is avoided, meanwhile, the energy density of a battery can be ensured, in addition, shaking of the battery cell 200 in the cavity 101 of the shell 100 can be reduced, and the electric performance and the structural stability of the battery can be improved.
Based on the above detailed description of several exemplary embodiments of the battery set forth in the present utility model, an exemplary embodiment of the battery device set forth in the present utility model will be described below.
In one embodiment of the present utility model, the battery device according to the present utility model includes the battery according to the present utility model and described in detail in the above embodiment. The battery device provided by the utility model can be a battery pack or a battery pack.
It should be noted herein that the battery devices shown in the drawings and described in this specification are only a few examples of the wide variety of battery devices that can employ the principles of the present utility model. It should be clearly understood that the principles of the present utility model are in no way limited to any details or any components of the battery device shown in the drawings or described in this specification.
In summary, according to the battery device provided by the utility model, friction between the battery core and the shell when the battery core is put into the shell can be avoided, meanwhile, the energy density of the battery can be ensured, in addition, shaking of the battery core in the cavity of the shell can be reduced, and the electric performance and the structural stability of the battery can be improved.
Exemplary embodiments of the battery and the battery device according to the present utility model are described and/or illustrated in detail above. Embodiments of the utility model are not limited to the specific embodiments described herein, but rather, components and/or steps of each embodiment may be utilized independently and separately from other components and/or steps described herein. Each component and/or each step of one embodiment may also be used in combination with other components and/or steps of other embodiments. When introducing elements/components/etc. that are described and/or illustrated herein, the terms "a," "an," and "the" are intended to mean that there are one or more of the elements/components/etc. The terms "comprising," "including," and "having" are intended to be inclusive and mean that there may be additional elements/components/etc., in addition to the listed elements/components/etc. Furthermore, the terms "first" and "second" and the like in the claims and in the description are used for descriptive purposes only and not for numerical limitation of their subject matter.
While the utility model has been described in terms of various specific embodiments, those skilled in the art will recognize that the utility model can be practiced with modification within the spirit and scope of the claims.
Claims (9)
1. The battery is characterized by comprising a shell, a battery core and two cover plate components, wherein the two ends of the shell in a first direction are open, the battery core is accommodated in a cavity of the shell, the battery core comprises a top surface, a bottom surface, two first side surfaces and two second side surfaces, the two first side surfaces and the two second side surfaces are connected between the top surface and the bottom surface, the two first side surfaces are arranged at intervals along the first direction and are respectively perpendicular to the first direction, the two second side surfaces are arranged at intervals along a second direction which is perpendicular to the first direction and are respectively perpendicular to the second direction, the surface area of the second side surface is larger than the surface area of the first side surface, the two cover plate components are respectively arranged at the openings at the two ends of the shell, and at least one cover plate component is provided with a pole component; the ratio of the thickness of the battery cell in the thickness of the cavity is 0.8-0.99 along the second direction, and the ratio of the height of the battery cell in the height of the cavity is 0.9-0.99 along the height direction.
2. The battery of claim 1, wherein the ratio of the thickness of the cell to the thickness of the cavity in the second direction is 0.95-0.99.
3. The battery of claim 1, wherein the height of the cells in the height direction has a ratio of 0.96-0.99 in the height of the cavity.
4. The battery of claim 1, wherein a ratio of a thickness of the cell to a thickness of the cavity is less than a ratio of a height of the cell to a height of the cavity.
5. The battery of claim 1, wherein the length of the cells in the first direction is 200mm to 500mm and the height of the cells is 50mm to 200mm.
6. The battery according to any one of claims 1 to 5, wherein the battery cell comprises a battery cell body and two tabs, the two tabs are respectively arranged on two first side surfaces of the battery cell body, the two cover plate assemblies are respectively provided with a pole assembly, and the two tabs are respectively connected to the two pole assemblies.
7. The battery of claim 6, wherein the cell further comprises an inner insulating film disposed on the top surface, the bottom surface, and the two second side surfaces of the cell body.
8. The battery according to any one of claims 1 to 5, wherein the housing is provided with an explosion-proof structure located on a wall of the housing corresponding to the top or bottom surface of the battery cell.
9. A battery device comprising the battery according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321553608.8U CN220138467U (en) | 2023-06-16 | 2023-06-16 | Battery and battery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321553608.8U CN220138467U (en) | 2023-06-16 | 2023-06-16 | Battery and battery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220138467U true CN220138467U (en) | 2023-12-05 |
Family
ID=88958336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321553608.8U Active CN220138467U (en) | 2023-06-16 | 2023-06-16 | Battery and battery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220138467U (en) |
-
2023
- 2023-06-16 CN CN202321553608.8U patent/CN220138467U/en active Active
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