CN219163638U - Battery cell structure and battery module and battery pack comprising same - Google Patents
Battery cell structure and battery module and battery pack comprising same Download PDFInfo
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- CN219163638U CN219163638U CN202320117936.7U CN202320117936U CN219163638U CN 219163638 U CN219163638 U CN 219163638U CN 202320117936 U CN202320117936 U CN 202320117936U CN 219163638 U CN219163638 U CN 219163638U
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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
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Abstract
The utility model provides a battery cell structure, a battery module and a battery pack comprising the same, wherein the battery cell structure comprises a shell, an electrode assembly, a top cover assembly and pins, the electrode assembly is arranged in the shell, and the electrode assembly comprises a battery cell body and lugs extending from the battery cell body; the top cover assembly comprises a top cover body and a pole column arranged on the top cover body, and the top cover body is connected with the shell; the pin comprises a first connecting piece and a second connecting piece which are connected with each other, the first connecting piece is connected with the pole, the second connecting piece is bent and extended along one side, far away from the pole, of the first connecting piece to be connected with the pole lug, and the second connecting piece comprises a welding plate and a supporting plate which are connected with each other, so that the battery cell body can be supported and held, and the risk of damage to the pole lug caused by shaking of the battery cell body is reduced; one side of the welding plate, which is far away from the battery cell body, is used for welding with the electrode lugs, and one side of the welding plate, which is close to the battery cell body, is provided with a first gap with the battery cell body, so that the risk of damaging the battery cell body during welding can be reduced.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a battery core structure, a battery module comprising the same and a battery pack.
Background
The positive electrode tab and the negative electrode tab of the existing battery cell structure are respectively positioned on two sides and are respectively electrically connected with the positive electrode tab and the negative electrode tab in a welding mode through pins, so that the battery cell current is conducted to the outside of the battery cell from the inside. Usually, before welding, a welding tool is required to be inserted between the pins and the battery cell body, the process is complex, and the welding tool risks damaging the pins or the battery cell body; in addition, the battery cell body pulls the tab under the working condition of vibration impact, so that the tab is damaged.
Disclosure of Invention
The utility model aims to overcome the defects that the prior art is complex in process and easy to damage a tab, and provides a battery cell structure, a battery module and a battery pack containing the battery cell structure.
The utility model solves the technical problems by the following technical scheme:
a cell structure comprising:
a housing;
the electrode assembly is arranged in the shell and comprises a battery cell body and a tab extending from the battery cell body;
the top cover assembly comprises a top cover body and a pole column arranged on the top cover body, and the top cover body is connected with the shell;
the pin, the pin includes interconnect's first connecting piece and second connecting piece, first connecting piece with the utmost point post is connected, the second connecting piece is followed first connecting piece is kept away from one side bending extension of utmost point post with the utmost point ear is connected, the second connecting piece includes interconnect's welded plate and supports the board, support the board be close to the one side of electric core body with electric core body butt, the welded plate is kept away from one side of electric core body be used for with utmost point ear welding, the welded plate be close to one side of electric core body with electric core body has first clearance.
In the scheme, the second connecting piece of the pin comprises a welding plate and a propping plate connected with the welding plate, one surface of the propping plate, which is close to the battery cell body, is propped against the battery cell body, and the battery cell body can be propped against the propping plate through the propping of the propping plate and the battery cell body, so that the risk of electrode lug damage caused by shaking of the battery cell body is reduced; one side of the welding plate, which is far away from the battery cell body, is used for being welded with the electrode lugs, one side of the welding plate, which is close to the battery cell body, is provided with a first gap, and the risk of damaging the battery cell body during welding can be reduced by arranging the first gap between the side of the welding plate, which is close to the battery cell body, and the battery cell body.
Preferably, the second connecting piece is provided with a through groove, two sides of the through groove are respectively provided with a welding plate and a supporting plate which are connected with each other, wherein the welding plate is close to the through groove, the supporting plate is far away from the through groove, and the tab penetrates through the through groove.
In the scheme, the second connecting piece is provided with the through groove, the welding plate is arranged on one side close to the through groove, a gap is formed between the welding plate and the battery cell body, when the tab is positioned in a region corresponding to the through groove, the tab can pass through the through groove, the tab is conveniently welded on the welding plate, and the gap between the welding plate and the battery cell body can prevent the battery cell body from being damaged during welding; the propping plate is far away from the through groove, is propped against the battery cell body at the position far away from the through groove, is connected with the welding plate through the propping plate, and is propped against the plate to be propped against the battery cell body, so that the battery cell body is prevented from being damaged by pulling the tab under the working condition of vibration impact.
Preferably, the holding plate is disposed at a side close to the central axis of the electrode assembly, and the welding plate is disposed at a side far from the central axis of the electrode assembly.
In this scheme, the welded plate sets up in keeping away from one side of the axis of electrode assembly, support and hold the board setting and be close to one side of the axis of electrode assembly, be about to the welded plate setting on being close to the tip of electrode assembly, when the one side of the axis of electric core body was kept away from to the utmost point ear sets up, make things convenient for the utmost point ear to buckle and weld with the welded plate from the tip of electrode assembly towards the welded plate, through support the butt of holding board and electric core body, set up the clearance between welded plate and the electric core body, the damage to the utmost point ear under the operating mode of vibration impact has not only been avoided to the electric core, but also the injury electric core body when can preventing the welding.
Preferably, one side of the welding plate, which is close to the tab, is in contact with the tab, and one side of the welding plate, which is far away from the tab, is connected with a bending part formed by bending one side of the battery cell body, and the welding plate is connected with the supporting plate through the bending part.
In this scheme, with the welded plate setting in the position department that is close to the utmost point ear, the convenience is welded the utmost point ear on the welded plate, and the welded plate is connected through the kink with support to hold the board, and make to hold the board for the welded plate is close to the electric core body, thereby be convenient for realize to hold board and electric core body butt.
Preferably, the dimension of the supporting plate in the thickness direction of the battery cell body is not less than half of the thickness of the battery cell body.
In this scheme, support and hold the board and be not less than half of the thickness of electric core body at the ascending size of electric core body, guarantee to support the butt area of holding board and electric core body for support and hold the board and can stably support the electric core body and live, prevent effectively that the electric core body from rocking.
Preferably, the welding plate and the supporting plate are of a flat plate structure, and the welding plate and the supporting plate are parallel to each other.
In this scheme, the welded plate is dull and stereotyped structure with support and hold the board, and the welded plate is parallel to each other with support and hold the board, not only makes things convenient for utmost point ear and welded plate welding, but also can make support to hold the board and laminating better with the electric core body to hold the electric core body steadily.
Preferably, the electrode assembly comprises a first electric core body, a first tab extending from the first electric core body, a second electric core body and a second tab extending from the second electric core body, wherein the first tab and the second tab penetrate through the through groove and are bent towards the direction away from each other.
In this scheme, electrode assembly includes first electric core body and second electric core body, for the electric capacity of single electric core body's structure can improve electric core structure, first utmost point ear passes with the second ear link up the groove to buckle towards the direction of keeping away from each other, make first utmost point ear and second ear respectively with link up the welded plate welding of groove both sides, when first utmost point ear and second ear respectively rather than complex welded plate welding, not only avoided the electric core to the damage of utmost point ear under the operating mode of vibration impact, but also can prevent the damage electric core body when welding.
Preferably, the second connecting piece is provided with a welding plate and a supporting plate corresponding to two sides of the central axis of the electrode assembly, the electrode assembly comprises a first electric core body and a first tab extending from the first electric core body, a second electric core body and a second tab extending from the second electric core body, and the first tab and the second tab are bent from two sides of the second connecting piece to directions approaching to each other.
In this scheme, electrode assembly includes first electric core body and second electric core body, can improve the electric capacity of electric core structure for the structure of single electric core body, and the second connecting piece corresponds the both sides of the axis of electrode assembly all are provided with a welded plate and one supports and hold the board, and first utmost point ear and second ear are buckled to the direction that is close each other from the both sides of second connecting piece for first utmost point ear and second ear respectively with the both sides of being connected from the second respectively with a welded plate welding, when first utmost point ear and second ear are welded with the welded plate respectively, not only avoided the electric core to the damage of utmost point ear under the operating mode of vibration impact, but also can prevent the damage electric core body when welding.
The utility model also provides a battery module, it includes foretell electric core structure.
The utility model provides a battery package still, it includes foretell battery module.
The utility model has the positive progress effects that: the second connecting piece of the pin comprises a welding plate and a propping plate connected with the welding plate, one surface, close to the battery cell body, of the propping plate is propped against the battery cell body, and the battery cell body can be propped against the propping plate through the propping of the propping plate and the battery cell body, so that the risk of electrode lug damage caused by shaking of the battery cell body is reduced; one side of the welding plate, which is far away from the battery cell body, is used for being welded with the electrode lugs, one side of the welding plate, which is close to the battery cell body, is provided with a first gap, and the risk of damaging the battery cell body during welding can be reduced by arranging the first gap between the side of the welding plate, which is close to the battery cell body, and the battery cell body.
Drawings
Fig. 1 is a schematic structural diagram of a cell structure according to an embodiment of the utility model.
Fig. 2 is a schematic diagram of a welding position of a tab according to an embodiment of the utility model.
Fig. 3 is a schematic structural diagram of a battery cell structure according to an embodiment of the utility model after the battery cell structure is mounted on a housing.
Fig. 4 is an enlarged view at B in fig. 3.
Fig. 5 is an enlarged view at C in fig. 3.
Description of the reference numerals
Pin 4
Second connector 5
Welding plate 7
Through groove 8
Bending part 9
Detailed Description
The present utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments are shown.
The present utility model provides a cell structure, as shown in fig. 1-5, the cell structure includes: the battery cell comprises a shell, an electrode assembly, a top cover assembly and pins 4, wherein the electrode assembly is arranged in the shell and comprises a battery cell body and electrode lugs extending from the battery cell body; the top cover assembly comprises a top cover body and a pole 2 arranged on the top cover body, and the top cover body is connected with the shell; the pin 4 includes interconnect's first connecting piece and second connecting piece 5, first connecting piece is connected with utmost point post 2, second connecting piece 5 is kept away from the one side bending extension of utmost point post 2 along first connecting piece and is connected with the utmost point ear, second connecting piece 5 includes interconnect's welded plate 7 and supports and hold board 6, support and hold the one side that board 6 is close to the electric core body and electric core body butt, the one side that electric core body was kept away from to welded plate 7 is used for with the utmost point ear welding, the one side that welded plate 7 is close to the electric core body has first clearance with electric core body. One surface of the supporting plate 6, which is close to the battery core body, is in supporting connection with the battery core body, and the battery core body can be supported by the supporting plate 6 through the supporting connection with the battery core body, so that the risk of electrode lug damage caused by shaking of the battery core body is reduced; one side, far away from the battery cell body, of the welding plate 7 is used for being welded with the electrode lugs, one side, close to the battery cell body, of the welding plate 7 is provided with a first gap with the battery cell body, and the risk of damaging the battery cell body during welding can be reduced by arranging the first gap between one side, close to the battery cell body, of the welding plate 7 and the battery cell body.
As shown in fig. 1-5, one side of the welding plate 7, which is close to the tab, is in contact with the tab, one side of the welding plate 7, which is far away from the tab, is connected with a bending part 9 formed by bending towards one side of the battery cell body, the welding plate 7 is connected with the supporting plate through the bending part 9, the welding plate 7 is arranged at a position close to the tab, the tab is conveniently welded on the welding plate 7, the welding plate 7 is connected with the supporting plate through the bending part 9, and the supporting plate is close to the battery cell body relative to the welding plate 7, so that the supporting plate and the battery cell body are conveniently connected.
As shown in fig. 1 to 3, the size of the holding plate in the thickness direction of the battery cell body is not less than half of the thickness of the battery cell body, so that the holding plate can stably hold the battery cell body, the battery cell body is effectively prevented from shaking, and it is to be noted that fig. 1 to 5 show an electrode assembly of a dual battery cell body having a first battery cell body 1 and a second battery cell body 10, and the size of the holding plate in the thickness direction of the battery cell body is not less than half of the thickness of the battery cell body in contact with the holding plate or half of the thickness of the second battery cell body 10. In other embodiments, the electrode assembly may have an electrode assembly with a cell body, and the second connecting member 5 includes a holding plate and a welding plate 7 connected to the holding plate to fit a tab extending from one side of the cell body.
As shown in fig. 4 to 5, the welding plate 7 and the holding plate 6 are of a flat plate structure, and the welding plate 7 and the holding plate 6 are parallel to each other. The welding plate 7 and the supporting plate 6 are of flat plate structures, and the welding plate 7 and the supporting plate 6 are parallel to each other, so that the electrode lugs and the welding plate 7 are convenient to weld, and the supporting plate 6 and the battery cell body can be attached better to stably support the battery cell body.
As shown in fig. 1-5, in this embodiment, the second connecting piece 5 is provided with a through slot 8, two sides of the through slot 8 are provided with a welding plate 7 and a supporting plate 6, wherein the welding plate 7 is close to the through slot 8, the supporting plate 6 is far away from the through slot 8, the tab passes through the through slot 8, the through slot 8 is provided on the second connecting piece 5, the welding plate 7 is arranged at one side close to the through slot 8, when the tab is located in a region corresponding to the through slot 8, the tab can pass through the through slot 8, the tab is conveniently welded on the welding plate 7, and the gap between the welding plate 7 and the cell body can prevent the cell body from being damaged during welding; the propping plate is far away from the through groove, is propped against the battery cell body at the position far away from the through groove, is connected with the welding plate through the propping plate, and is propped against the plate to be propped against the battery cell body, so that the battery cell body is prevented from being damaged by pulling the tab under the working condition of vibration impact. The electrode assembly comprises a first battery cell body 1, a first tab 3 extending from the first battery cell body 1, a second battery cell body 10 and a second tab 11 extending from the second battery cell body 10, wherein the first tab 3 and the second tab 11 penetrate through the through groove 8 and are bent towards a direction away from each other. In this embodiment, the electrode assembly includes the first electric core body 1 and the second electric core body 10, and the electric capacity of the electric core structure can be improved relative to the structure of the single electric core body, and the first tab 3 and the second tab 11 pass through the through slot 8 and are bent towards the direction that is far away from each other, so that the first tab 3 and the second tab 11 are respectively welded with the welding plates 7 at two sides of the through slot 8. When the first tab 3 and the second tab 11 are welded with the welding plates respectively, the damage to the tabs caused by vibration impact of the battery cell is avoided, and the battery cell body can be prevented from being damaged during welding.
Although the second connection member 5 is provided with the through groove 8 through which the first tab 3 and the second tab 11 pass in the present embodiment so that the first tab 3 and the second tab 11 are welded to the welding plates 7 on both sides of the through groove 8, respectively, the through groove may not be provided in other embodiments. The supporting plate in the second connecting piece 5 is arranged on one side close to the central axis of the electrode assembly, the welding plate 7 is arranged on one side far away from the central axis of the electrode assembly, namely, the welding plate 7 is arranged on the end part close to the electrode assembly, and when one side far away from the central axis of the battery cell body is arranged on the electrode lug, the electrode lug is convenient to extend out of the end part of the electrode assembly and bend towards the welding plate to be welded with the welding plate. The welding plate 7 and the supporting plate 6 can be arranged on two sides of the central axis of the electrode assembly, the electrode assembly comprises a first electric core body 1, a first electrode lug 3 extending from the first electric core body 1, a second electric core body 10 and a second electrode lug 11 extending from the second electric core body 10, and the first electrode lug 3 and the second electrode lug 11 are bent from two sides of the second connecting piece 5 towards the directions approaching to each other. The electrode assembly comprises a first battery core body 1 and a second battery core body 10, the capacitance of the battery core structure can be improved relative to the structure of a single battery core body, a welding plate 7 and a supporting plate 6 are arranged on two sides of the second connecting piece 5 corresponding to the central axis of the electrode assembly, the first electrode lug 3 and the second electrode lug 11 are bent in the directions close to each other from two sides of the second connecting piece 5, the first electrode lug 3 and the second electrode lug 11 are respectively welded with one welding plate 7 from two sides of the second connecting piece, when the second connecting piece 5 is located between the first electrode lug 3 and the second electrode lug 11, the first electrode lug 3 and the second electrode lug 11 are bent in the directions close to each other from two sides of the second connecting piece 5, the first electrode lug 3 and the second electrode lug 11 are respectively welded with one welding plate from two sides of the second connecting piece, when the first electrode lug 3 and the second electrode lug 11 are respectively welded with the welding plates, damage to the electrode lugs under the working condition of vibration and impact of the battery core is avoided, and the battery core body is prevented from being damaged.
The utility model also provides a battery module, it includes as aforesaid electric core structure.
The utility model provides a battery package still, it includes foretell battery module.
While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the utility model, but such changes and modifications fall within the scope of the utility model.
Claims (10)
1. A cell structure comprising:
a housing;
the electrode assembly is arranged in the shell and comprises a battery cell body and a tab extending from the battery cell body;
the top cover assembly comprises a top cover body and a pole column arranged on the top cover body, and the top cover body is connected with the shell;
the pin, the pin includes interconnect's first connecting piece and second connecting piece, first connecting piece with the utmost point post is connected, the second connecting piece is followed first connecting piece is kept away from one side bending extension of utmost point post with the utmost point ear is connected, the second connecting piece includes interconnect's welded plate and supports the board, support the board be close to the one side of electric core body with electric core body butt, the welded plate is kept away from one side of electric core body be used for with utmost point ear welding, the welded plate be close to one side of electric core body with electric core body has first clearance.
2. The cell structure of claim 1, wherein the second connecting member is provided with a through slot, and a welding plate and a holding plate are disposed on both sides of the through slot, wherein the welding plate is disposed close to the through slot, the holding plate is disposed away from the through slot, and the tab passes through the through slot.
3. The cell structure of claim 1, wherein the abutment plate is disposed on a side near the central axis of the electrode assembly and the welding plate is disposed on a side far from the central axis of the electrode assembly.
4. The cell structure according to claim 1, wherein a side of the welding plate, which is close to the tab, is in contact with the tab, a side of the welding plate, which is far from the tab, is connected with a bending part formed by bending toward a side of the cell body, and the welding plate is connected with the abutting plate through the bending part.
5. The cell structure according to claim 1, wherein a dimension of the holding plate in a thickness direction of the cell body is not less than half a thickness of the cell body.
6. The cell structure of claim 4, wherein the soldering plate and the holding plate are flat structures and the soldering plate and the holding plate are parallel to each other.
7. The cell structure of claim 2, wherein the electrode assembly comprises a first cell body and a first tab extending from the first cell body, a second cell body and a second tab extending from the second cell body, the first tab and the second tab passing through the through slot and bending in directions away from each other.
8. The battery cell structure of claim 3, wherein two sides of the second connecting piece corresponding to the central axis of the electrode assembly are provided with a welding plate and a supporting plate, the electrode assembly comprises a first battery cell body and a first tab extending from the first battery cell body, a second battery cell body and a second tab extending from the second battery cell body, and the first tab and the second tab are bent from two sides of the second connecting piece to directions approaching each other.
9. A battery module characterized in that it comprises the cell structure according to any one of claims 1 to 8.
10. A battery pack comprising the battery module according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320117936.7U CN219163638U (en) | 2023-01-16 | 2023-01-16 | Battery cell structure and battery module and battery pack comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320117936.7U CN219163638U (en) | 2023-01-16 | 2023-01-16 | Battery cell structure and battery module and battery pack comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219163638U true CN219163638U (en) | 2023-06-09 |
Family
ID=86614449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320117936.7U Active CN219163638U (en) | 2023-01-16 | 2023-01-16 | Battery cell structure and battery module and battery pack comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219163638U (en) |
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2023
- 2023-01-16 CN CN202320117936.7U patent/CN219163638U/en active Active
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