CN201638890U - Pole piece without external lug for coiled lithium ion battery - Google Patents
Pole piece without external lug for coiled lithium ion battery Download PDFInfo
- Publication number
- CN201638890U CN201638890U CN2010201561693U CN201020156169U CN201638890U CN 201638890 U CN201638890 U CN 201638890U CN 2010201561693 U CN2010201561693 U CN 2010201561693U CN 201020156169 U CN201020156169 U CN 201020156169U CN 201638890 U CN201638890 U CN 201638890U
- Authority
- CN
- China
- Prior art keywords
- pole piece
- lithium ion
- ion battery
- coiled lithium
- collector
- 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
Links
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 Electrode And Active Subsutance (AREA)
Abstract
The utility model relates to a pole piece without an external lug, which is used for a coiled lithium ion battery. The pole piece is formed by winding after a current collector is coated with an active material. The current collector is provided with blank parts integrated with the current collector. The blank parts are positive and negative pole leading-out terminals. Compared with the conventional pole piece welded with a lug, the pole piece without the external lug, which is used for the coiled lithium ion battery, greatly improves consistency and cycle performance of the battery and can be more suitable for the requirement of the battery for large current discharge.
Description
Technical field
The utility model relates to a kind of nothing that is used for coiled lithium ion battery and adds lug formula pole piece.
Background technology
Coiled lithium ion battery has been widely used in particularly in the utilization of automotive field, more and more receiving the concern of various countries on the various large power-consuming equipments at present.Battery needs to bear heavy-current discharge as automobile-used power source, also good consistency and cycle performance will be arranged.In the production method of the pole piece of traditional cylindrical lithium ion battery, need not be coated with lug in the blank space welding of active material at collector, be welded on the battery case as the both positive and negative polarity leading-out terminal then, this mode has influenced the performance of lithium ion battery performance to a certain extent, in addition pole piece when reeling tightness and the space of battery also be affected.
The utility model content
The technical problems to be solved in the utility model is: influence the performance of battery performance in order to solve at present on the pole piece of coiled lithium ion battery soldering polar ear, influence simultaneously pole piece when reeling tightness and the problem of battery space, the spy provides a kind of nothing that is used for coiled lithium ion battery to add lug formula pole piece.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of nothing that is used for coiled lithium ion battery adds lug formula pole piece, pole piece is coated with active material after coiling is made by collector, described collector has and the white part of staying of collector one, and staying white part is the exit of both positive and negative polarity.
Exit on the collector is distributed with a plurality of, is more conducive to heavy-current discharge.
The beneficial effects of the utility model are: this nothing that is used for coiled lithium ion battery adds the pole piece of lug formula pole piece than traditional soldering polar ear, has improved the consistency and the cycle performance of battery greatly, more can adapt to the needs of high-rate battery discharge.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the structural representation (expansion shape) that the nothing that is used for coiled lithium ion battery of the present utility model adds lug formula pole piece.
Among the figure: 1. collector 2. exits
Embodiment
A kind of nothing that is used for coiled lithium ion battery adds lug formula pole piece, and as shown in Figure 1, after coiling is made, described collector 1 has the white part of staying with collector 1 one to pole piece by collector 1 coating active material, and staying white part is the exit 2 of both positive and negative polarity.
Exit 2 on the collector 1 is evenly distributed with a plurality of.
Shape for exit 2 is carried out cutting according to actual needs.
Claims (2)
1. a nothing that is used for coiled lithium ion battery adds lug formula pole piece, pole piece is coated with active material after coiling is made by collector (1), it is characterized in that: described collector (1) has the white part of staying with collector (1) one, and staying white part is the exit (2) of both positive and negative polarity.
2. the nothing that is used for coiled lithium ion battery according to claim 1 adds lug formula pole piece, it is characterized in that: the exit on the collector (2) is distributed with a plurality of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201561693U CN201638890U (en) | 2010-03-30 | 2010-03-30 | Pole piece without external lug for coiled lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201561693U CN201638890U (en) | 2010-03-30 | 2010-03-30 | Pole piece without external lug for coiled lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201638890U true CN201638890U (en) | 2010-11-17 |
Family
ID=43083394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201561693U Expired - Fee Related CN201638890U (en) | 2010-03-30 | 2010-03-30 | Pole piece without external lug for coiled lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201638890U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102683751A (en) * | 2012-05-25 | 2012-09-19 | 浙江振龙电源股份有限公司 | High-capacity high-magnification square lithium ion power battery and manufacturing method thereof |
| CN105514480A (en) * | 2016-02-01 | 2016-04-20 | 陈佩 | Cylindrical lithium ion battery and method for packaging negative terminal |
| WO2023068494A1 (en) | 2021-10-22 | 2023-04-27 | 주식회사 엘지에너지솔루션 | Electrode assembly, battery, and battery pack and vehicle comprising same |
-
2010
- 2010-03-30 CN CN2010201561693U patent/CN201638890U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102683751A (en) * | 2012-05-25 | 2012-09-19 | 浙江振龙电源股份有限公司 | High-capacity high-magnification square lithium ion power battery and manufacturing method thereof |
| CN102683751B (en) * | 2012-05-25 | 2015-03-25 | 浙江振龙电源股份有限公司 | High-capacity high-magnification square lithium ion power battery and manufacturing method thereof |
| CN105514480A (en) * | 2016-02-01 | 2016-04-20 | 陈佩 | Cylindrical lithium ion battery and method for packaging negative terminal |
| WO2023068494A1 (en) | 2021-10-22 | 2023-04-27 | 주식회사 엘지에너지솔루션 | Electrode assembly, battery, and battery pack and vehicle comprising same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20150330 |
|
| EXPY | Termination of patent right or utility model |