CN201518338U - Explosion-proof device on surface of lithium ion battery case - Google Patents
Explosion-proof device on surface of lithium ion battery case Download PDFInfo
- Publication number
- CN201518338U CN201518338U CN200920229336XU CN200920229336U CN201518338U CN 201518338 U CN201518338 U CN 201518338U CN 200920229336X U CN200920229336X U CN 200920229336XU CN 200920229336 U CN200920229336 U CN 200920229336U CN 201518338 U CN201518338 U CN 201518338U
- Authority
- CN
- China
- Prior art keywords
- explosion
- battery case
- lithium ion
- proof
- ion battery
- 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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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
- Sealing Battery Cases Or Jackets (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model relates to the field of lithium ion batteries, in particular to an explosion-proof device on the surface of a lithium ion battery case. Explosion-proof marks are formed on two big faces of the battery case, and the width of each explosion-proof mark is 0.25mm, and is the same as the depth of the battery case. When a battery cell heats up internally or an electrolyte is decomposed to produce a large amount of gas, the explosion-proof marks can automatically crack to exhaust the gas under the 1MPa internal pressure because of the technical scheme, thereby thoroughly avoiding explosion accidents resulting from overpressure inside the battery cell.
Description
Technical field
The utility model relates to the lithium ion battery field, specifically a kind of lithium-ion battery shell surface explosion-protection equipment.
Background technology
General casing of lithium ion battery structure all adopts by negative pole rivet position and squeezes into explosion-proof seal, and its area is little, presses in bearing to more than the 6MPa, and phenomenon all appears blowing or blowing up in the explosion back casing, does not have the guarantee of shotfiring safety.
Summary of the invention
The purpose of this utility model is to have done on the anti-explosion safety special processing, and the use of battery security has been obtained effective guarantee.
The utility model is achieved in that on two big faces of battery case respectively squeezes into the explosion-proof seal that a width equates with thickness of shell, and explosion-proof seal width is 0.25mm, and the explosion-proof seal degree of depth is 0.2mm.
Owing to adopted technique scheme,, perhaps decompose under the situation that produces a large amount of gases because of electrolyte when electric in-core portion adstante febre, the explosion-proof seal place of housing will depress in 1MPa, can occur the crack automatically, discharge gas, fully solve because of the excessive hidden danger that causes explosion of electric in-core pressure.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
In the drawings: 1, electric core interface rivet; 2, battery cover board; 3, battery case; 4, explosion-proof seal.
Embodiment
The utility model is further described below in conjunction with drawings and Examples:
In Fig. 1, on anti-explosion safety, done special treatment process, on 2 two big faces of battery case, respectively squeeze into the explosion-proof seal 4 that a width equates with thickness of shell by adopting, housing wall thickness is 0.25mm, seal is 0.2mm deeply.
The battery cover board 2 that the surface increases explosion-proof seal 4 welds with electric core interface rivet 1, forms one and connects whole.
Claims (1)
1. lithium-ion battery shell surface explosion-protection equipment, form by electric core interface rivet (1), battery cover board (2) and battery case (3), it is characterized in that on (3) two big faces of battery case, respectively squeezing into the explosion-proof seal (4) that a width equates with thickness of shell, explosion-proof seal (4) width is 0.25mm, and the explosion-proof seal degree of depth is 0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920229336XU CN201518338U (en) | 2009-11-02 | 2009-11-02 | Explosion-proof device on surface of lithium ion battery case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920229336XU CN201518338U (en) | 2009-11-02 | 2009-11-02 | Explosion-proof device on surface of lithium ion battery case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201518338U true CN201518338U (en) | 2010-06-30 |
Family
ID=42499060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920229336XU Expired - Fee Related CN201518338U (en) | 2009-11-02 | 2009-11-02 | Explosion-proof device on surface of lithium ion battery case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201518338U (en) |
-
2009
- 2009-11-02 CN CN200920229336XU patent/CN201518338U/en not_active Expired - Fee Related
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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: 20100630 Termination date: 20141102 |
|
| EXPY | Termination of patent right or utility model |