CN201084777Y - A lithium battery pole piece structure - Google Patents
A lithium battery pole piece structure Download PDFInfo
- Publication number
- CN201084777Y CN201084777Y CNU2007200499119U CN200720049911U CN201084777Y CN 201084777 Y CN201084777 Y CN 201084777Y CN U2007200499119 U CNU2007200499119 U CN U2007200499119U CN 200720049911 U CN200720049911 U CN 200720049911U CN 201084777 Y CN201084777 Y CN 201084777Y
- Authority
- CN
- China
- Prior art keywords
- electrode
- pole piece
- flakes
- ears
- lug
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model relates to a technical field of lithium battery, in particular to an improvement of lithium battery electrode flake structure. The utility model comprises electrode flakes, electrode ears are welded on the electrode flakes, the electrode flakes are clamped between two electrode ears, the two electrode ears and the electrode flakes are welded to form a whole. The two electrode ears can be parallel or crossed each other. In the connection structure of electrode ears and electrode flakes provided by the utility model, the electrode lug connection belts of the electrode flakes are clamped between the two electrode ears for welding. The electrode ears are welded together with the positive and opposite faces of the electrode ear connection belts by the welding means, so as to increase welding surface effectively, thereby reinforcing tensile strength of the electrode flakes and the electrode ear connection belts and also avoiding flake-breaking and off-welding.
Description
Technical field
The utility model relates to technical field of lithium batteries, is specifically related to a kind of improvement of lithium battery pole chip architecture.
Background technology
And along with the development of lithium-ion electric pool technology, its cost performance improves constantly, and causes it by all trades and professions extensive use.Nearly one or two years,, indexs such as the capacity of lithium battery, charge-discharge performance are had higher requirement along with the develop rapidly of mechanics of communication.
For lithium battery, its basic structure comprises electric core, and battery battery core is to be made of pole piece overlapped or that reel, and pole piece comprises collector and the polarity dope layer that is coated on the collection liquid surface, the limit of each pole piece is provided with lug, and lug is connected on the pole piece by welding manner usually.And the welding of conventional battery pole piece is to adopt individual layer aluminium (nickel) and individual layer aluminium (copper) as lug directly to be welded on the pole piece.As shown in Figure 1, lug sheet metal 1 directly is welded on the lug connecting band 21 of pole piece 2, just the lug sheet metal only welds together with the one side of connecting band, it is few that the welding manner of present this lug easily causes between lug and the pole piece solder side to be connected, and rosin joint is many, resistance is big, easy formation should the power of meeting an urgent need ruptures pole piece or defective such as come off.
The utility model content
Technical problem to be solved in the utility model provides a kind of tensile strength that strengthens pole piece and lug connecting portion, and avoids the lithium battery pole chip architecture of part sealing-off.
For solving the problems of the technologies described above, the technical scheme that the utility model is realized is:
Design a kind of lithium battery pole chip architecture, include pole piece, be welded with lug on the pole piece, pole piece is folded between two lugs, and two lugs and pole piece connect as one by welding manner.
As improvement of the technical scheme, with parallel between two lugs of pole piece connecting band welding or be crossed as crosswise.
The utility model has following remarkable result compared to existing technology:
The syndeton of pole-piece pole-ear provided by the utility model, the lug connecting band of pole piece is clipped between two lug sheet metals and welds, this welding manner makes the positive and negative two sides of lug connecting band on lug and the pole piece all weld together, effectively increased solder side, strengthened the tensile strength of pole piece and lug connecting portion and can avoid the generation of phenomenons such as part, sealing-off.
Description of drawings
Fig. 1 is the schematic diagram of existing pole piece and lug connecting portion;
Fig. 2 is the structural representation of the utility model embodiment 1
Fig. 2 is the structural representation of the utility model embodiment 2
Embodiment
Referring to Fig. 2, a kind of lithium battery pole chip architecture includes pole piece 2, and pole piece is made of collector and the polarity dope layer that is coated on the collection liquid surface, pole piece connecting band 21 is the parts that do not apply the pole piece collector of polarity dope layer, and lug is welded on the pole piece connecting band.During the present embodiment soldering polar ear, the pole piece connecting band is placed middle, lug sheet metal 1 is placed on pole piece connecting band one side, the another side of pole piece connecting band use parallel with the lug sheet metal and sheet metal 11 that character is identical with its clamping, adopt technologies such as metal supersonic welding, Laser Welding or electric resistance welding that lug is welded on the pole piece then.Weld simultaneously at pole piece connecting band tow sides during the present embodiment soldering polar ear, solder side increases, and can effectively increase the tensile strength of lug.
Referring to Fig. 3, what the welding of lug and pole piece was different from embodiment 1 in the present embodiment is, clamp the pole piece connecting band with connatural sheet metal 11 of lug sheet metal and the orthogonal setting of lug sheet metal, it is better that lug and pole piece intersect welding performance.
Claims (2)
1. a lithium battery pole chip architecture includes pole piece, is welded with lug on the pole piece, it is characterized in that: described pole piece is folded between two lugs, and two pole pieces and lug connect as one by welding manner.
2. lithium battery pole chip architecture according to claim 1 is characterized in that: described two lugs are parallel or be crossed as crosswise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200499119U CN201084777Y (en) | 2007-03-28 | 2007-03-28 | A lithium battery pole piece structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200499119U CN201084777Y (en) | 2007-03-28 | 2007-03-28 | A lithium battery pole piece structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201084777Y true CN201084777Y (en) | 2008-07-09 |
Family
ID=39627249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200499119U Expired - Fee Related CN201084777Y (en) | 2007-03-28 | 2007-03-28 | A lithium battery pole piece structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201084777Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870392A (en) * | 2016-05-13 | 2016-08-17 | 深圳市科陆电子科技股份有限公司 | Electrode, battery cell, battery module, as well as preparation method and application of battery module |
| CN106997963A (en) * | 2016-01-22 | 2017-08-01 | 通用汽车环球科技运作有限责任公司 | Manufacture bag-type battery and pole piece is attached on electrode |
| CN107919444A (en) * | 2017-12-05 | 2018-04-17 | 中航锂电（洛阳）有限公司 | Battery and its lug sheet body, the battery modules using the battery |
| DE102017200891B4 (en) | 2016-01-22 | 2024-01-25 | GM Global Technology Operations LLC | Process for producing a pouch cell |
-
2007
- 2007-03-28 CN CNU2007200499119U patent/CN201084777Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106997963A (en) * | 2016-01-22 | 2017-08-01 | 通用汽车环球科技运作有限责任公司 | Manufacture bag-type battery and pole piece is attached on electrode |
| US10629941B2 (en) | 2016-01-22 | 2020-04-21 | GM Global Technology Operations LLC | Making a pouch format cell and attaching a tab to an electrode |
| CN106997963B (en) * | 2016-01-22 | 2020-04-28 | 通用汽车环球科技运作有限责任公司 | Method for manufacturing pouch type battery |
| DE102017200891B4 (en) | 2016-01-22 | 2024-01-25 | GM Global Technology Operations LLC | Process for producing a pouch cell |
| CN105870392A (en) * | 2016-05-13 | 2016-08-17 | 深圳市科陆电子科技股份有限公司 | Electrode, battery cell, battery module, as well as preparation method and application of battery module |
| CN107919444A (en) * | 2017-12-05 | 2018-04-17 | 中航锂电（洛阳）有限公司 | Battery and its lug sheet body, the battery modules using the battery |
| CN107919444B (en) * | 2017-12-05 | 2020-12-01 | 中航锂电（洛阳）有限公司 | Battery, tab sheet body thereof and battery module using battery |
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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: TCL CORPORATION Free format text: FORMER OWNER: HUIZHOU TCL HYPERPOWER BATTERIES INC. Effective date: 20080905 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080905 Address after: Technical center, 8 floor, TCL Arts crafts emporium, No. 6 Goose Road South, Guangdong, Huizhou, China: 516001 Patentee after: TCL Group Co., Ltd. Address before: Guangdong city in Huizhou Province town of Tong Fu Lu Huizhou TCL jinneny Battery Co., zip code: 516005 Patentee before: Huizhou TCL Jinneng Battery Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080709 Termination date: 20120328 |