CN219321470U - Battery shell structure - Google Patents
Battery shell structure Download PDFInfo
- Publication number
- CN219321470U CN219321470U CN202223163839.6U CN202223163839U CN219321470U CN 219321470 U CN219321470 U CN 219321470U CN 202223163839 U CN202223163839 U CN 202223163839U CN 219321470 U CN219321470 U CN 219321470U
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- CN
- China
- Prior art keywords
- shell
- cover plate
- battery
- connecting portion
- housing
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- 238000001746 injection moulding Methods 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000002360 preparation method Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 2
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 description 2
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 229910001425 magnesium ion Inorganic materials 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 229910001414 potassium ion Inorganic materials 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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 application provides a battery shell structure, which comprises a first shell, a second shell, a first cover plate and a second cover plate; the first shell is in injection molding connection with the second shell through a connecting part, the first cover plate covers the end face, far away from the second shell, of the first shell, and the second cover plate covers the end face, far away from the first shell, of the second shell; the connecting portion comprises an outer connecting portion and an inner connecting portion which are integrally formed, the outer connecting portion is respectively abutted to the outer side face of the first shell and the outer side face of the second shell, and the inner connecting portion is respectively abutted to the inner side face of the first shell and the inner side face of the second shell. The battery power control device can greatly enhance the high-current charge and discharge capacity of the battery, effectively improve the power performance of the battery, has a simple structure, is low in preparation process cost, is easy for mass production or mass production, and can effectively expand the service scene of the battery.
Description
Technical Field
The utility model relates to the technical field of ion batteries, in particular to a battery shell structure.
Background
Rechargeable batteries are becoming an increasingly interesting object due to their economical, environmental, electrical capacity and long-term use. Currently, existing rechargeable battery cases generally employ metal cases, such as aluminum cases, steel cases, aluminum plastic films, or plastic cases; the shape of which is generally that of cylindrical or square, etc. In general, the above rechargeable battery can meet the conventional use requirements of the battery. However, if the existing rechargeable battery adopts a metal housing, whether it is a square or cylindrical metal housing, there is a general problem: the structure is unfavorable for the passage of large current, limits the improvement of the battery performance, and also greatly limits the use scene of the battery.
Disclosure of Invention
Based on the above, the embodiment of the utility model provides a battery shell structure, which aims to solve the problems that the existing rechargeable battery adopts a metal shell, which is not beneficial to the passage of large current, limits the improvement of the battery performance, limits the use scene of the battery and the like. Through the structure of this application, the heavy current charge-discharge ability of reinforcing battery that can be very big effectively promotes the power performance of battery, and then effectively expands the service scenario of battery.
In order to achieve the above object, an embodiment of the present utility model provides a battery case structure, including a first case, a second case, a first cover plate, and a second cover plate; the first shell is in injection molding connection with the second shell through a connecting part, the first cover plate covers the end face, far away from the second shell, of the first shell, and the second cover plate covers the end face, far away from the first shell, of the second shell;
the connecting portion comprises an outer connecting portion and an inner connecting portion which are integrally formed, the outer connecting portion is respectively abutted to the outer side face of the first shell and the outer side face of the second shell, and the inner connecting portion is respectively abutted to the inner side face of the first shell and the inner side face of the second shell.
In a preferred embodiment, the connecting portion is a plastic connecting portion.
As a preferred embodiment, one end of the first housing, which is close to the connecting portion, is of a "U" type structure, a threaded structure, a wave-shaped structure, or a "W" type structure; one end of the second shell, which is close to the connecting part, is of a U-shaped structure, a thread structure, a wave-shaped structure or a W-shaped structure.
As a preferred embodiment, the external connection portion is a cylindrical connection portion, a quadrangular connection portion, a pentagonal connection portion, or a hexagonal connection portion.
As a preferred embodiment, the connecting portion is a smooth connecting portion (such as a cylindrical connecting portion) or a wavy connecting portion.
As a preferred embodiment, the first cover plate is provided with a liquid injection hole, and the second cover plate is provided with an explosion-proof valve;
or, be provided with explosion-proof valve on the first apron, be provided with annotate the liquid hole on the second apron.
As a preferred embodiment, the first cover plate is connected with the first housing by welding or riveting; the second cover plate is connected with the second shell through welding or riveting.
In a preferred embodiment, the first housing and the second housing are both metal housings.
As a preferred embodiment, the first housing and the second housing are both cylindrical housings.
As a preferred embodiment, the cylindrical housing is a cylindrical housing with two open ends or a cylindrical housing with one open end and one closed end; the closed port is arranged far away from the connecting part.
As a preferred embodiment, the first housing is a positive housing, and the first cover plate is a positive cover plate; the second shell is a negative electrode shell, and the second cover plate is a negative electrode cover plate.
In the embodiment of the application, the battery shell structure can be suitable for a lithium ion battery, a sodium ion battery, a magnesium ion battery or a potassium ion battery.
According to the rechargeable battery, the first shell and the second shell are respectively used as the positive electrode and the negative electrode of the battery, the first shell and the second shell are connected in a sealing mode through the connecting portion, the high-current charge and discharge capacity of the battery can be greatly improved, the power performance of the battery is effectively improved, and the problems that the existing rechargeable battery is unfavorable for the passing of high current due to the fact that the metal shell is adopted, the improvement of the battery performance and the service scene of the battery are limited are solved. The battery cell manufacturing method is simple in structure, low in manufacturing process cost, easy to mass production or large-scale production, and capable of effectively expanding the service scene of the battery.
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the embodiments.
Drawings
Fig. 1 is an exploded view of a battery case structure according to an embodiment of the present utility model;
FIG. 2 is a schematic perspective view of the battery housing structure of FIG. 1;
fig. 3 is a top view of a battery case structure (the external connection part is a hexagonal connection part) according to another embodiment of the present utility model.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described in the following embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, if directional indications (such as up, down, left, right, front, back, top, bottom … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
Currently, existing rechargeable battery cases generally employ metal cases, such as aluminum cases, steel cases, aluminum plastic films, or plastic cases; the shape of the material is generally cylindrical or square. In general, the above rechargeable battery can meet the conventional use requirements of the battery. However, if the existing rechargeable battery adopts a metal housing, whether it is a square or cylindrical metal housing, there is a general problem: the structure is unfavorable for the passage of large current, limits the improvement of the battery performance, and also greatly limits the use scene of the battery. Based on this, it is necessary to provide a battery case structure to solve the above technical problems.
In order to achieve the above objective, referring to fig. 1 to 2, an embodiment of the present utility model provides a battery housing structure, which includes a first housing 10, a second housing 20, a first cover plate 30 and a second cover plate 40; the first casing 10 is in injection molding connection with the second casing 20 through a connecting part 50, the first cover plate 30 covers the end surface of the first casing 10, which is far away from the second casing 20, and the second cover plate 40 covers the end surface of the second casing 20, which is far away from the first casing 10;
the connecting portion 50 includes an outer connecting portion 51 and an inner connecting portion 52 which are integrally formed, the outer connecting portion 51 is respectively abutted against the outer side surface of the first housing 10 and the outer side surface of the second housing 20, and the inner connecting portion 52 is respectively abutted against the inner side surface of the first housing 10 and the inner side surface of the second housing 20.
In a preferred embodiment, the connection portion 50 is a plastic connection portion. Thus, the insulation between the first housing and the second housing can be ensured, and occurrence of short circuit can be prevented.
As a preferred embodiment, the end of the first housing 10 near the connecting portion 50 is in a "U" shape, a thread shape, a wave shape, or a "W" shape; the end of the second housing 20 near the connecting portion 50 is in a "U" shape, a threaded structure, a wave shape, or a "W" shape. Like this, can make the plastic connecting portion more inseparable and firm with being connected of first casing, second casing, fine leakproofness and the steadiness of assurance connection also can guarantee the insulating nature between first casing and the second casing simultaneously, prevent the emergence of short circuit.
Specifically, in this embodiment, one end of the first housing, which is close to the connection portion, is a "U" structure 11; one end of the second housing, which is close to the connecting part, is a U-shaped structure 21. It will be appreciated that in other embodiments, the end of the first housing near the connecting portion may be in a "W" shape, a thread shape, or a wave shape; the end of the second shell close to the connecting part can also be in a W-shaped structure, a thread structure or a wave-shaped structure.
As a preferred embodiment, the outer connection portion 51 is a cylindrical connection portion, a quadrangular connection portion, a pentagonal connection portion, or a hexagonal connection portion. Specifically, in the present embodiment, the outer connection portion 51 is a cylindrical connection portion. It will be appreciated that in other embodiments, the outer connection 51 may be a quadrilateral connection, or a pentagonal connection, or a hexagonal connection (as shown in fig. 3).
In a preferred embodiment, the inner connecting portion 52 is a smooth connecting portion (such as a cylindrical connecting portion) or a wavy connecting portion. Specifically, in the present embodiment, the inner connecting portion 52 is a connecting portion (cylindrical connecting portion) with smooth lines. It will be appreciated that in other embodiments, the inner connection 52 may be a wavy line connection.
As a preferred embodiment, the first cover plate 30 is provided with a liquid injection hole (not shown), and the second cover plate 40 is provided with an explosion-proof valve (not shown);
alternatively, the first cover plate 30 is provided with an explosion-proof valve (not shown), and the second cover plate 40 is provided with a liquid injection hole (not shown).
As a preferred embodiment, the first cover plate 30 is connected to the first housing 10 by welding or riveting; the second cover 40 is connected to the second housing 20 by welding or riveting.
As a preferred embodiment, the first housing 10 and the second housing 20 are both metal housings. Therefore, the first shell and the second shell are respectively used as the positive electrode and the negative electrode of the battery, and the first shell and the second shell are connected in a sealing way through the connecting part, so that the high-current charge and discharge capacity of the battery can be greatly enhanced, and the power performance of the battery is effectively improved.
As a preferred embodiment, the first housing 10 and the second housing 20 are both cylindrical housings.
As a preferred embodiment, the cylindrical housing is a cylindrical housing with two open ends or a cylindrical housing with one open end and one closed end; the closed end is located away from the connection 50. In the embodiment of the present application, the cylindrical housing is a cylindrical housing having both ends open.
As a preferred embodiment, the first case 10 is a positive electrode case, and the first cover 30 is a positive electrode cover; the second case 20 is a negative electrode case, and the second cover 40 is a negative electrode cover.
In the embodiment of the application, the battery shell structure can be suitable for a lithium ion battery, a sodium ion battery, a magnesium ion battery or a potassium ion battery.
According to the rechargeable battery, the first shell and the second shell are respectively used as the positive electrode and the negative electrode of the battery, the first shell and the second shell are connected in a sealing mode through the connecting portion, the high-current charge and discharge capacity of the battery can be greatly improved, the power performance of the battery is effectively improved, and the problems that the existing rechargeable battery is unfavorable for the passing of high current due to the fact that the metal shell is adopted, the improvement of the battery performance and the service scene of the battery are limited are solved. Meanwhile, the battery adopting the battery shell structure is difficult to generate heat during working, is convenient to assemble and simplifies the manufacturing process of the battery. The battery cell manufacturing method is simple in structure, low in manufacturing process cost, easy to mass production or large-scale production, and capable of effectively expanding the service scene of the battery.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.
Claims (10)
1. The battery shell structure is characterized by comprising a first shell, a second shell, a first cover plate and a second cover plate; the first shell is in injection molding connection with the second shell through a connecting part, the first cover plate covers the end face, far away from the second shell, of the first shell, and the second cover plate covers the end face, far away from the first shell, of the second shell;
the connecting portion comprises an outer connecting portion and an inner connecting portion which are integrally formed, the outer connecting portion is respectively abutted to the outer side face of the first shell and the outer side face of the second shell, and the inner connecting portion is respectively abutted to the inner side face of the first shell and the inner side face of the second shell.
2. The battery housing structure of claim 1, wherein the connection portion is a plastic connection portion.
3. The battery case structure according to claim 2, wherein an end of the first case near the connecting portion is a "U" -shaped structure, a screw structure, a wave-shaped structure, or a "W" -shaped structure; one end of the second shell, which is close to the connecting part, is of a U-shaped structure, a thread structure, a wave-shaped structure or a W-shaped structure.
4. The battery case structure according to claim 1, wherein the outer connection part is a cylindrical connection part, a quadrangular connection part, a pentagonal connection part, or a hexagonal connection part.
5. The battery case structure according to claim 4, wherein the internal connection portion is a line-smooth connection portion or a wavy line connection portion.
6. The battery housing structure according to claim 1, wherein the first cover plate is provided with a liquid injection hole, and the second cover plate is provided with an explosion-proof valve;
or, be provided with explosion-proof valve on the first apron, be provided with annotate the liquid hole on the second apron.
7. The battery case structure according to claim 1, wherein the first cover plate and the first case are connected by welding or riveting; the second cover plate is connected with the second shell through welding or riveting;
the first shell is a positive electrode shell, and the first cover plate is a positive electrode cover plate; the second shell is a negative electrode shell, and the second cover plate is a negative electrode cover plate.
8. The battery case structure according to any one of claims 1 to 7, wherein the first case and the second case are both metal cases.
9. The battery housing structure of claim 8, wherein the first housing and the second housing are both cylindrical housings.
10. The battery case structure according to claim 9, wherein the cylindrical case is a cylindrical case that is open at both ends or a cylindrical case that is open at one end and closed at one end; the closed port is arranged far away from the connecting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223163839.6U CN219321470U (en) | 2022-11-25 | 2022-11-25 | Battery shell structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223163839.6U CN219321470U (en) | 2022-11-25 | 2022-11-25 | Battery shell structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219321470U true CN219321470U (en) | 2023-07-07 |
Family
ID=87027140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223163839.6U Active CN219321470U (en) | 2022-11-25 | 2022-11-25 | Battery shell structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219321470U (en) |
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2022
- 2022-11-25 CN CN202223163839.6U patent/CN219321470U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Building 3, Precision Machinery Industrial Park, No. 79 Gaodeng Road, Xishan District, Wuxi City, Jiangsu Province, 214000 Patentee after: Wuxi Pangu New Energy Co.,Ltd. Address before: 518000 507, Block C, Building 5, Hengming Bay Foreign Exchange Center, Huilongpu Community, Longcheng Street, Longgang District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Pangu Naxiang New Energy Co.,Ltd. |
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| CP03 | Change of name, title or address |