CN201773874U - Core structure of individual lithium battery - Google Patents
Core structure of individual lithium battery Download PDFInfo
- Publication number
- CN201773874U CN201773874U CN2010205212210U CN201020521221U CN201773874U CN 201773874 U CN201773874 U CN 201773874U CN 2010205212210 U CN2010205212210 U CN 2010205212210U CN 201020521221 U CN201020521221 U CN 201020521221U CN 201773874 U CN201773874 U CN 201773874U
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- negative
- positive
- lithium battery
- weld
- plate
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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 relates to a lithium battery, in particular to a core structure of individual lithium batteries. The core structure of individual lithium batteries comprises a positive plate, a diaphragm, a negative plate and a packaging film wrapping outside, which are circulated successively in parallel superposition.Positive and negative tabs are arranged at one ends of positive and negative plates respectively.Positive and negative tabs are welded respectively and are welded together with positive and negative outer tabs respectively to form two weld toes.The outer sides of the weld toes are wrapped with electric tapes.According to the technical solution of the present utility model, the packaging film is prevented from being pricked by wrapping weld toes with electric tapes, thereby prolonging the service life of lithium batteries.
Description
Technical field
The utility model relates to a kind of lithium battery, relates in particular to a kind of core strueture of single lithium battery.
Background technology
Existing square stacked lithium battery is made of the single lithium battery of stack parallel with one another, and the electric core of single lithium battery is replaced the parallel positive and negative plate that is superimposed and is constituted by a series of, be provided with insulation diaphragm between the positive/negative plate, end at each pole piece is provided with positive and negative lug, during assembling with pole piece stack and make the lug alignment of same polarity, with positive and negative lug be welded on respectively one and with corresponding outer lug welding, directly encapsulate packaging film afterwards.And the toe of weld after the welding is harder and sharp, punctures the packaging film of electric core outside easily, and then causes electrolyte to reveal, and reduces the useful life of battery.
Summary of the invention
At above-mentioned technical problem, the utility model provides a kind of toe of weld that can effectively prevent to puncture the single lithium battery electricity core of packaging film.
Single lithium battery core strueture described in the utility model, comprise positive plate, barrier film, the negative plate of the parallel stack that circulates successively and be wrapped in the outside packaging film, described positive plate, negative plate one end are respectively equipped with anode ear, negative electrode lug, positive and negative lug welds together respectively and forms two toes of weld with just outer lug, negative outer lug welding back respectively, and the described toe of weld outside is enclosed with insulating tape.For preventing that toe of weld from puncturing packaging film, can be to twine two toes of weld respectively, but this mode can strengthen the volume of electric core, influences the encapsulation of electric core with adhesive tape; Length and the approximately equalised insulating tape of electric core width can be attached to the end that electric core has toe of weld, and in toe of weld was wrapped in, this mode did not take up space, convenient encapsulation yet.
For guaranteeing the packaging effect of adhesive tape, can adopt certain thickness sandwich rubber, promptly described insulating tape is a sandwich rubber.
The utility model utilizes insulating tape that toe of weld is wrapped up, and can prevent that toe of weld from puncturing packaging film, has improved the useful life of lithium battery.
Description of drawings
Below in conjunction with accompanying drawing execution mode of the present utility model is described in detail:
Fig. 1 is the structural representation of existing single lithium battery electricity core;
Fig. 2 is a structural representation of the present utility model;
Among the figure, the 1st, just outer lug, the 2nd, anode ear, the 3rd, positive plate, the 4th, barrier film, the 5th, negative plate, the 6th, negative outer lug, the 7th, negative electrode lug, the 8th, toe of weld, the 9th, packaging film, the 10th, insulating tape.
Embodiment
A kind of single lithium battery core strueture, comprise positive plate 3, barrier film 4, negative plate 5, described positive plate 3, negative plate 5 one ends are respectively equipped with anode ear 2, negative electrode lug 7, with a series of positive plates 3, barrier film 4, negative plate 5 parallel being superimposed of circulating successively, and tie up, anode ear 2, negative electrode lug 7 welded together respectively and respectively with just outer lug 1, two toes of weld 8 of negative outer lug 6 welding back formation, utilize insulating tape 10 that toe of weld 8 is attached to electric core one end, outer enclosure packaging film 9 again.Described insulating tape 10 is a sandwich rubber.
Claims (2)
1. single lithium battery core strueture, comprise positive plate (3), barrier film (4), the negative plate (5) of the parallel stack that circulates successively and be wrapped in the outside packaging film (9), described positive plate (3), negative plate (5) one ends are respectively equipped with anode ear (2), negative electrode lug (7), positive and negative lug welds together respectively and forms two toes of weld (8) with just outer lug (1), negative outer lug (6) welding back respectively, and it is characterized in that: described toe of weld (8) outside is enclosed with insulating tape (10).
2. single lithium battery core strueture according to claim 1 is characterized in that: described insulating tape (10) is a sandwich rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205212210U CN201773874U (en) | 2010-09-08 | 2010-09-08 | Core structure of individual lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205212210U CN201773874U (en) | 2010-09-08 | 2010-09-08 | Core structure of individual lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201773874U true CN201773874U (en) | 2011-03-23 |
Family
ID=43753717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205212210U Expired - Fee Related CN201773874U (en) | 2010-09-08 | 2010-09-08 | Core structure of individual lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201773874U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106784584A (en) * | 2017-01-09 | 2017-05-31 | 中天储能科技有限公司 | A kind of negative electrode for lithium ion battery lug assistor |
-
2010
- 2010-09-08 CN CN2010205212210U patent/CN201773874U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106784584A (en) * | 2017-01-09 | 2017-05-31 | 中天储能科技有限公司 | A kind of negative electrode for lithium ion battery lug assistor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20130908 |