CN202601766U - Lithium ion battery with staggered tabs - Google Patents
Lithium ion battery with staggered tabs Download PDFInfo
- Publication number
- CN202601766U CN202601766U CN2012202438731U CN201220243873U CN202601766U CN 202601766 U CN202601766 U CN 202601766U CN 2012202438731 U CN2012202438731 U CN 2012202438731U CN 201220243873 U CN201220243873 U CN 201220243873U CN 202601766 U CN202601766 U CN 202601766U
- Authority
- CN
- China
- Prior art keywords
- lithium ion
- lug
- ion battery
- pole plates
- disc
- 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 discloses a lithium ion battery with staggered tabs. A battery core of the lithium ion battery is formed by stacking at least four pole plates, diaphragms are arranged among the pole plates, and the pole plates comprise a plurality of positive pole plates and a plurality of negative pole plates. When the plurality of positive pole plates are stacked, tabs of the plurality of positive pole plates are staggered, and when the plurality of negative pole plates are stacked, tabs of the plurality of negative pole plates are staggered. The number of the positive pole plates is 2, and the number of the negative pole plates is 2. In the lithium ion battery with staggered tabs, tab connection is reliable, and cold solder joint can be effectively removed.
Description
Technical field
The utility model relates to a kind of lithium ion battery with dislocation lug.
Background technology
The applied more and more of lithium ion battery in electric automobile and Large Electric instrument; For the electrokinetic cell of some ting models can flexible package mode; Even inside battery produces gas; Because aluminum plastic film can bear certain ductility, the serious blast consequence that inflatable can not produce the box hat structure yet appears in battery, so the electrokinetic cell of flexible package is a developing direction from now on.
Yet for large-scale lithium ion battery, battery cell is formed by multilayer positive/negative plate mutual superposition, in flexible-packed battery because the restriction of multiple layer of copper aluminium foil Weldability; For the number of plies of positive/negative plate by certain restriction; Also just limit the capacity of battery, otherwise do not reached the lug requirement of welding, caused the lug rosin joint; Even can't weld together, therefore can't make soft-package battery for the more laminated batteries of the number of plies.
The utility model content
The utility model technical problem to be solved provides a kind of lithium ion battery with dislocation lug, and this has in the lithium ion battery of dislocation lug, and lug connects better reliable, can effectively eliminate rosin joint.
The technical solution of utility model is following:
A kind of lithium ion battery with dislocation lug; The electric core of lithium ion battery is formed by at least 4 pole piece closed assemblies, is provided with barrier film between the pole piece, and pole piece comprises multi-disc positive plate and multi-disc negative plate; When the multi-disc positive plate is superimposed together; The lug of multi-disc positive plate staggers each other, and when the multi-disc negative plate was superimposed together, the lug of multi-disc negative plate staggered each other.
Described positive plate and negative plate are 2.
Beneficial effect:
The lithium ion battery with dislocation lug of the utility model, owing to have dislocation between the lug, the number of plies when having reduced the battery welding has improved the stackable positive/negative plate quantity of cell greatly, has improved the capacity of cell.Adopt this technology, the number of plies of lug can become during welding does not have 1/2 of the number of plies before the lug dislocation to greatly reduce lug welding difficulty, has solved when the lug number of plies rosin joint or a difficult problem of not welding more for a long time.
Description of drawings
Fig. 1 is the core strueture sketch map of the lithium ion battery with dislocation lug of the utility model;
Fig. 2 is the pole piece sketch map with dislocation lug; Figure a-d is respectively the sketch map of first anode ear, second anode ear, first negative electrode lug and second negative electrode lug.
Label declaration: 1-first anode ear, 2-second anode ear, 3-first negative electrode lug, 4-second negative electrode lug, 5-pole piece.
Embodiment
Below will combine accompanying drawing and specific embodiment that the utility model is explained further details:
Embodiment 1:
Shown in Fig. 1-2, a kind of lithium ion battery with dislocation lug, the electric core of lithium ion battery is formed by at least 4 pole piece closed assemblies; Be provided with barrier film between the pole piece; Pole piece comprises multi-disc positive plate and multi-disc negative plate, and when the multi-disc positive plate was superimposed together, the lug of multi-disc positive plate staggered each other; When the multi-disc negative plate was superimposed together, the lug of multi-disc negative plate staggered each other.Described positive plate and negative plate are 2.The lug of multi-disc positive plate welds together, and the lug of multi-disc negative plate welds together.
Claims (2)
1. the lithium ion battery with dislocation lug is characterized in that the electric core of lithium ion battery is formed by at least 4 pole piece closed assemblies; Be provided with barrier film between the pole piece; Pole piece comprises multi-disc positive plate and multi-disc negative plate, and when the multi-disc positive plate was superimposed together, the lug of multi-disc positive plate staggered each other; When the multi-disc negative plate was superimposed together, the lug of multi-disc negative plate staggered each other.
2. the lithium ion battery with dislocation lug according to claim 1 is characterized in that described positive plate and negative plate are 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202438731U CN202601766U (en) | 2012-05-29 | 2012-05-29 | Lithium ion battery with staggered tabs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202438731U CN202601766U (en) | 2012-05-29 | 2012-05-29 | Lithium ion battery with staggered tabs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202601766U true CN202601766U (en) | 2012-12-12 |
Family
ID=47319287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202438731U Expired - Fee Related CN202601766U (en) | 2012-05-29 | 2012-05-29 | Lithium ion battery with staggered tabs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202601766U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190325A (en) * | 2019-05-10 | 2019-08-30 | 深圳技术大学 | Four-electrode lithium-sulfur battery, preparation method thereof and electrode electrochemical characteristic monitoring method |
-
2012
- 2012-05-29 CN CN2012202438731U patent/CN202601766U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190325A (en) * | 2019-05-10 | 2019-08-30 | 深圳技术大学 | Four-electrode lithium-sulfur battery, preparation method thereof and electrode electrochemical characteristic monitoring method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20170529 |