CN201498558U - Flexible package power lithium ion battery with direct-attachment type tabs - Google Patents
Flexible package power lithium ion battery with direct-attachment type tabs Download PDFInfo
- Publication number
- CN201498558U CN201498558U CN2009203087092U CN200920308709U CN201498558U CN 201498558 U CN201498558 U CN 201498558U CN 2009203087092 U CN2009203087092 U CN 2009203087092U CN 200920308709 U CN200920308709 U CN 200920308709U CN 201498558 U CN201498558 U CN 201498558U
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- Prior art keywords
- negative
- white edge
- lug
- lithium ion
- anodal
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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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- Sealing Battery Cases Or Jackets (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model relates to a flexible package power lithium ion battery with direct-attachment tabs, which comprises a shell, a positive pole tab, a negative pole tab and single cells, wherein the single cell comprises a positive electrode, a negative electrode and a membrane, the membrane is arranged between the positive electrode and the negative electrode and between the negative electrode and the shell, one side of the positive electrode is provided with a positive pole white edge, one side of the negative electrode is provided with a negative pole white edge, the extension direction of the positive pole white edge is opposite to that of the negative pole white edge, and the positive electrode, the negative electrode and the membrane are integrally wound to form a battery roll core or stacked to form a battery laminate. At least two single cells are stacked together and arranged in the shell, the positive pole white edge and the positive pole tab are laminated together, and the negative pole white edge and the negative pole tab are laminated together. The utility model provides two embodiments and has the advantages that because tabs are led out from end parts at both sides and double positive pole tabs and double negative pole tabs are adopted, the conductive contact surface of the battery tabs is enlarged, the charging and discharging performance of the battery is improved, and the application range of the battery is extended.
Description
Technical field
The utility model relates to the battery technology field, particularly relates to a kind of flexible packaging power lithium ion battery with straight subsides formula lug.
Background technology
At present, the lead-acid battery in the power accumulator that uses in the motor vehicle, ickel-cadmium cell, Ni-H cell and sulphur sode cell are low because of its energy density, the charging interval long, maintainability is poor, have influenced promotion and application.The lithium secondary battery that new development is in recent years simultaneously got up does not reach the requirement of electric motor car because of not filling soon, has influenced its promotion and application.
In the recent period, because the user is to the continuous increase of battery capacity, the conductive area of battery pole ear and the welding etc. of drawing lug and the volume heart can not get solving, and have influenced the application of battery especially.Therefore, develop big capacity Soft Roll lithium-ion-power cell, when enhancing productivity, also must strengthen the battery pole ear conductive contact surfaces, promote the battery charging and discharging performance, could further enlarge the range of application of Soft Roll lithium ion battery.
The utility model content
The purpose of this utility model is exactly in order to overcome above defective, provides a kind of and can improve the lug conductive contact surfaces, promotes the battery charging and discharging performance, enlarges the flexible packaging power lithium ion battery with straight subsides formula lug of battery applications scope.
For achieving the above object, a kind of flexible packaging power lithium ion battery that the utility model provides with straight subsides formula lug, comprise housing, positive pole ear and negative lug, also comprise at least 2 cells, described cell comprises positive electrode, negative electrode and barrier film, wherein said barrier film is between described positive electrode and the negative electrode and between negative electrode and the housing, one side of described positive electrode is provided with outward extending anodal white edge, one side of described negative electrode is provided with outward extending negative pole white edge, and described anodal white edge is opposite with the bearing of trend of described negative pole white edge, described positive electrode, negative electrode and barrier film one reel to become battery roll core or stack becomes battery lamination; Described cell is stacked together and places described housing, and described anodal white edge and described positive pole ear press together, and described negative pole white edge and negative lug press together.
The utlity model has the flexible packaging power lithium ion battery of straight subsides formula lug, the inboard end of wherein said positive pole ear is provided with first bending, the inboard end of described negative lug is provided with second bending, the anodal white edge of described cell is pressed together in first bending, and the white edge of the negative electrode of described cell is pressed together in second bending.
The utlity model has the flexible packaging power lithium ion battery of straight subsides formula lug, the lug place between wherein per two described cells is installed with block rubber.
The utlity model has the flexible packaging power lithium ion battery of straight subsides formula lug, wherein encapsulation place at described positive pole ear and negative lug and described housing is stained with thermosol.
The utlity model has the flexible packaging power lithium ion battery of straight subsides formula lug, wherein said cell is 2-6.
For achieving the above object, the another kind that the utility model provides has the flexible packaging power lithium ion battery of straight subsides formula lug, comprise housing, positive pole ear and negative lug, also comprise 2 cells, described cell comprises positive electrode, negative electrode and barrier film, wherein said barrier film is between described positive electrode and the negative electrode and between negative electrode and the housing, one side of described positive electrode is provided with outward extending anodal white edge, one side of described negative electrode is provided with outward extending negative pole white edge, described positive electrode, negative electrode and barrier film one reel to become battery roll core or stack becomes battery lamination; 2 described cells are stacked together and place described housing, described positive pole ear and negative lug are respectively equipped with 2, the first anodal white edge of drawing from described cell left side is opposite with the second anodal white edge direction of drawing from another described cell right side, the first negative pole white edge of drawing from described cell left side is opposite with the second negative pole white edge direction of drawing from another described cell right side, the first anodal white edge and first positive pole ear of described cell press together, the first negative pole white edge and first negative lug of described cell press together, the second anodal white edge and second positive pole ear of each described cell press together, and the second negative pole white edge and second negative lug of each described cell press together.
The utility model another kind has the flexible packaging power lithium ion battery of straight subsides formula lug, the inboard end of wherein said positive pole ear and the inboard end of described negative lug are respectively equipped with bending, and the anodal white edge of described cell and negative pole white edge correspondence are pressed together in each bending.
The utility model another kind has the flexible packaging power lithium ion battery of straight subsides formula lug, and the lug place between wherein per two described cells is installed with block rubber.
The utility model another kind has the flexible packaging power lithium ion battery of straight subsides formula lug, and wherein encapsulation place at described positive pole ear and negative lug and described housing is stained with thermosol.
The advantage that the utlity model has the flexible packaging power lithium ion battery of straight subsides formula lug is: because positive electrode, negative electrode and barrier film width as requested stack and become battery lamination battery or one and reel and become battery roll core, be provided with anodal white edge, negative pole white edge, draw lug in both side ends, strengthened the battery pole ear conductive contact surfaces, promote the battery charging and discharging performance, enlarged the battery applications scope.
Further be provided with the deriving structure of two positive pole ears and two negative lug, further enlarged the lug conductive area, reduced the internal resistance of cell.The battery pole ear fixed-site has block rubber when battery combination, the problem of having avoided the long-time use of straight subsides formula lug to occur becoming flexible.
Below with reference to accompanying drawings and in conjunction with the embodiments the utility model is elaborated.
Description of drawings
Fig. 1 is the front view of cell;
Fig. 2 is the A-A view of Fig. 1;
Fig. 3 is the schematic diagram that battery roll core is connected with the positive and negative electrode lug;
Fig. 4 is the front view of two positive pole ears and two negative lug deriving structures;
Fig. 5 is the schematic diagram that two positive pole ears are connected with two negative lug;
Fig. 6 is the stereogram that cell stacks.
Embodiment
See figures.1.and.2, the utlity model has the flexible packaging power lithium ion battery of straight subsides formula lug, comprise plastic-aluminum packaging film housing 7, positive pole ear 6 and negative lug 8, also comprise cell.Cell comprises positive electrode 2, negative electrode 3 and barrier film 4, barrier film 4 is between positive electrode 2 and the negative electrode 3 and between negative electrode 3 and the housing 7, one side of positive electrode 2 is provided with outward extending anodal white edge 1, one side of negative electrode 3 is provided with outward extending negative pole white edge 5, and anodal white edge 1 is opposite with the bearing of trend of negative pole white edge 5, anodal white edge 1 has certain width with negative pole white edge 5, does not apply active material.Positive electrode 2, negative electrode 3 and barrier film 4 width as requested stack and become battery lamination.
With reference to Fig. 3, in the different embodiment of the utility model cell, positive electrode 2, negative electrode 3 and barrier film 4 also can become battery roll core by the one coiling.The inboard end of positive pole ear 6 is provided with first bending 9, and the inboard end of negative lug 8 is provided with second bending 10, and anodal white edge 1 is pressed together in first bending 9, and negative pole white edge 5 is pressed together in second bending 10.Also can adopt welding during the pressing encapsulation, good to guarantee contact performance.
With reference to Fig. 4 and Fig. 5, in another embodiment of the flexible packaging power lithium ion battery that the utlity model has straight subsides formula lug, 2 cells are stacked together.Positive pole ear and negative lug, anodal white edge and negative pole white edge are respectively equipped with 2.The first anodal white edge 11 of drawing from the cell left side is opposite with second anodal white edge 21 directions of drawing from another cell right side, the first negative pole white edge 51 of drawing from the cell left side is opposite with the second negative pole white edge, 52 directions of drawing from another cell right side, the first anodal white edge 11 and first positive pole ear 61 of cell press together, the first negative pole white edge 51 and first negative lug 81 of two cells press together, the second anodal white edge 21 and second positive pole ear 62 of two cells press together, and the second negative pole white edge 52 and second negative lug 82 of cell press together.Other structures are identical with previous embodiment.
In the different embodiment of the utility model cell, the cell that is stacked together can be 3-6.For avoiding cell positive pole ear 6 and becoming flexible that positive electrode 2 contacts with 3 of negative lug 8 and negative electrodes when being used in combination, with reference to Fig. 6, lug place between per two cells is installed with block rubber 20, make its bending place of pushing down lug tightly, avoid the long-time back lug that uses loosening.The battery roll core that installs lug is put into plastic-aluminum packaging film housing 7, the encapsulation of filling electrolyte, positive pole ear 6 and negative lug 8 adopt thermosol to be encapsulated in the housing 7.
The above embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; relate under the prerequisite of spirit not breaking away from the utility model; various distortion and improvement that the common engineers and technicians in this area make the technical solution of the utility model all should fall in the definite protection range of claims of the present utility model.
Claims (9)
1. flexible packaging power lithium ion battery with straight subsides formula lug, comprise housing (7), positive pole ear (6) and negative lug (8), it is characterized in that: also comprise at least 2 cells, described cell comprises positive electrode (2), negative electrode (3) and barrier film (4), wherein said barrier film (4) is positioned between described positive electrode (2) and the negative electrode (3) and between negative electrode (3) and the housing (7), one side of described positive electrode (2) is provided with outward extending anodal white edge (1), one side of described negative electrode (3) is provided with outward extending negative pole white edge (5), and described anodal white edge (1) is opposite with the bearing of trend of described negative pole white edge (5), each described anodal white edge (1) presses together with described positive pole ear (6), each described negative pole white edge (5) presses together described positive electrode (2) with negative lug (8), negative electrode (3) and barrier film (4) stack and become battery lamination or one and reel and become battery roll core; Described cell is stacked together and places described housing (7).
2. the flexible packaging power lithium ion battery with straight subsides formula lug according to claim 1, it is characterized in that: the inboard end of wherein said positive pole ear (6) is provided with first bending (9), the inboard end of described negative lug (8) is provided with second bending (10), described anodal white edge (1) is pressed together in first bending (9), and the white edge of described negative electrode (3) is pressed together in second bending (10).
3. the flexible packaging power lithium ion battery with straight subsides formula lug according to claim 1 and 2 is characterized in that: wherein encapsulation place at described positive pole ear (6) and negative lug (8) and described housing (7) is stained with thermosol.
4. the flexible packaging power lithium ion battery with straight subsides formula lug according to claim 3 is characterized in that: the lug place between wherein per two described cells is installed with block rubber (20).
5. the flexible packaging power lithium ion battery with straight subsides formula lug according to claim 4 is characterized in that: wherein said cell is 2-6.
6. another kind of flexible packaging power lithium ion battery with straight subsides formula lug, comprise housing (7), positive pole ear and negative lug, it is characterized in that: also comprise 2 cells, described cell comprises positive electrode (2), negative electrode (3) and barrier film (4), wherein said barrier film (4) is positioned between described positive electrode (2) and the negative electrode (3) and between negative electrode (3) and the housing (7), one side of described positive electrode (2) is provided with outward extending anodal white edge (11,21), one side of described negative electrode (3) is provided with outward extending negative pole white edge (51,52), described positive electrode (2), negative electrode (3) and barrier film (4) stack and become battery lamination or one and reel and become battery roll core; 2 described cells are stacked together and place described housing (7), described positive pole ear and negative lug are respectively equipped with 2, the first anodal white edge (11) of drawing from described cell left side is opposite with second anodal white edge (21) direction of drawing from another described cell right side, the first negative pole white edge (51) of drawing from described cell left side is opposite with second negative pole white edge (52) direction of drawing from another described cell right side, the first anodal white edge (11) of two described cells presses together with first positive pole ear (61), the first negative pole white edge (51) of two described cells presses together with first negative lug (81), the second anodal white edge (21) of each described cell presses together with second positive pole ear (62), and the second negative pole white edge (52) of each described cell presses together with second negative lug (82).
7. the flexible packaging power lithium ion battery with straight subsides formula lug according to claim 6, it is characterized in that: the inboard end of the inboard end of wherein said positive pole ear (61,62) and described negative lug (81,82) is respectively equipped with bending, and anodal white edge of described cell (11,21) and negative pole white edge (51,52) correspondence are pressed together in each bending.
8. according to claim 6 or 7 described flexible packaging power lithium ion batteries with straight subsides formula lug, it is characterized in that: the lug place between wherein per two described cells is installed with block rubber (20).
9. the flexible packaging power lithium ion battery with straight subsides formula lug according to claim 8 is characterized in that: wherein encapsulation place at described positive pole ear (61,62) and described negative lug (81,82) and described housing (7) is stained with thermosol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203087092U CN201498558U (en) | 2009-08-25 | 2009-08-25 | Flexible package power lithium ion battery with direct-attachment type tabs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203087092U CN201498558U (en) | 2009-08-25 | 2009-08-25 | Flexible package power lithium ion battery with direct-attachment type tabs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201498558U true CN201498558U (en) | 2010-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203087092U Expired - Lifetime CN201498558U (en) | 2009-08-25 | 2009-08-25 | Flexible package power lithium ion battery with direct-attachment type tabs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201498558U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108832168A (en) * | 2018-06-21 | 2018-11-16 | 闻泰通讯股份有限公司 | Battery, battery charge-discharge circuit and electronic equipment |
| CN112803121A (en) * | 2021-02-19 | 2021-05-14 | 大连中比动力电池有限公司 | Battery core convergence assembly and module |
| WO2023050972A1 (en) * | 2021-09-28 | 2023-04-06 | 宁德时代新能源科技股份有限公司 | Battery cell, battery and electric apparatus |
-
2009
- 2009-08-25 CN CN2009203087092U patent/CN201498558U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108832168A (en) * | 2018-06-21 | 2018-11-16 | 闻泰通讯股份有限公司 | Battery, battery charge-discharge circuit and electronic equipment |
| CN112803121A (en) * | 2021-02-19 | 2021-05-14 | 大连中比动力电池有限公司 | Battery core convergence assembly and module |
| CN112803121B (en) * | 2021-02-19 | 2024-04-26 | 大连中比动力电池有限公司 | Convergence assembly and module of battery core |
| WO2023050972A1 (en) * | 2021-09-28 | 2023-04-06 | 宁德时代新能源科技股份有限公司 | Battery cell, battery and electric apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: UNIPOWER BATTERY LTD. Free format text: FORMER OWNER: HUANYU GROUP CO., LTD., HENAN Effective date: 20110402 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 453002 NO. 1, HUANYU AVENUE, XINXIANG CITY, HE'NAN PROVINCE TO: 100020 26/F, BLOCK A, NORTH TOWER, SOHO SHANGDU, NO. 8, DONGDAQIAO ROAD, CHAOYANG DISTRICT, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110402 Address after: 100020 Beijing city Chaoyang District East Bridge Road No. 8, block A 26 layer SOHO Patentee after: Beijing universal Amperex Technology Limited Address before: No. 1 Xinxiang City, Henan province 453002 universal Road Patentee before: Huanyu Group Co., Ltd., Henan |
|
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20190729 Granted publication date: 20100602 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100602 |