CN201438479U - Explosion-proof unit for lithium ion batteries - Google Patents
Explosion-proof unit for lithium ion batteries Download PDFInfo
- Publication number
- CN201438479U CN201438479U CN2009200613471U CN200920061347U CN201438479U CN 201438479 U CN201438479 U CN 201438479U CN 2009200613471 U CN2009200613471 U CN 2009200613471U CN 200920061347 U CN200920061347 U CN 200920061347U CN 201438479 U CN201438479 U CN 201438479U
- Authority
- CN
- China
- Prior art keywords
- explosion
- battery
- lithium ion
- utility
- battery cover
- 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
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 20
- 239000010959 steel Substances 0.000 claims abstract description 20
- 238000005260 corrosion Methods 0.000 claims abstract description 5
- 230000007797 corrosion Effects 0.000 abstract 2
- 230000001681 protective effect Effects 0.000 abstract 1
- 238000004880 explosion Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 206010016766 flatulence Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
Images
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
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model discloses an explosion-proof unit for lithium ion batteries. The purpose of the utility model is to provide an explosion-proof unit for lithium ion batteries, which can ensure the safety property of a battery under the premise of not damaging the shell of the battery. The explosion-proof unit comprises a battery cover (1), a screw cap (2), a spring (3) and a steel shim (4), the screw cap (2) is arranged on the upper part of the battery cover (1), the center of the battery cover (1) is provided with a threaded hole, the steel shim (4) is arranged in the threaded hole of the battery cover (1), the spring (3) is arranged between the screw cap (2) and the steel shim (4), the lower part of the steel shim (4) is wrapped by a corrosion-resistant PP film, and the exterior of the spring (3) is coated with a corrosion-resistant protective film. The utility model can be widely applied in the field of explosion-proof units for lithium ion batteries.
Description
Technical field
The utility model relates to a kind of explosion-protection equipment of lithium ion battery.
Background technology
At present, along with the development in lithium ion battery market, people are more and more higher to the practicality requirement of lithium ion battery, especially aspect the fail safe of battery.Simultaneously, battery manufacturer is all constantly increasing volume of battery specific energy and specific energy in order to adapt to the needs in market, and this has brought certain challenge for undoubtedly the safe handling of battery.In order to solve the security performance problem of battery, some start with from the positive and negative material of battery and solve the safety problem of battery, also there are some in electrolyte, to add the safety problem that different additives solves battery, also have some to make a search from the formal structure of battery and solve the safety problem of battery, the result does not obtain effect preferably.Traditional explosion protection for batteries is an explosion-proof line of carving a certain depth on the housing of battery, prevents battery when something unexpected happened, because the rapid rising of internal pressure, before battery is blasted, explosion-proof line breaks, and discharges pressure wherein, avoids the situation of battery explosion to take place.But adopt very inconveniently in such a way on plastic casing, and in case to start the electric core in back be to be in the state of scrapping substantially.Therefore in the prior art, the security performance problem of battery is never solved completely.
The utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, provides a kind of under the prerequisite of not destroying battery container, can guarantee the explosion-protection equipment of the lithium ion battery of battery safety.The technical scheme that the utility model adopted is: the utility model comprises battery cover, cap nut, spring, steel plate washer, described cap nut is arranged on described battery cover top, the center of described battery cover is provided with screwed hole, in the screwed hole of described battery cover, be provided with described steel plate washer, be provided with described spring between described cap nut and the described steel plate washer.
The bottom of described steel plate washer is enclosed with etch-proof PP film.
Described spring outside scribbles the anti-corrosion protection film.
The beneficial effects of the utility model are: because the utility model comprises battery cover, cap nut, spring, steel plate washer, described cap nut is arranged on described battery cover top, the center of described battery cover is provided with screwed hole, in the screwed hole of described battery cover, be provided with described steel plate washer, be provided with described spring between described cap nut and the described steel plate washer, the bottom of described steel plate washer is enclosed with etch-proof PP film, so the utility model is quick on the draw, can discharge battery timely fills, the rising of cell internal pressure in the discharge process, prevent battery explosion, simultaneously can be according to the situation of spring, set up force value on their own and determine internal pressure, discharge the pressure of inside battery, the housing of battery can not cause brokenly ring yet, very flexible, practical, therefore use the utility model guaranteeing sealing, do not destroy under the situation of battery container, the gas that the cell internal pressure that release in time causes increases, problems such as electric core flatulence that the rapid rising of solution cell internal pressure causes and electric core blast, thereby the safety problem of the electric core of fine solution.
It (is after cell internal pressure reaches certain numerical value that the utility model can also be set operating pressure arbitrarily by adjusting, replacing spring, the critical value of spring contraction, pressure release), and after cell internal pressure recovered, electric core can reseal again, and battery container any breakage can not occur.The utility model has good controllability and sealing again when guaranteeing that cell safety uses.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1; the utility model comprises battery cover 1, cap nut 2, spring 3, steel plate washer 4; described cap nut 2 is arranged on described battery cover 1 top; the center of described battery cover 1 is provided with screwed hole; described battery cover 1, described cap nut 2 are made by plastics, are provided with described steel plate washer 4 in the screwed hole of described battery cover 1, are provided with described spring 3 between described cap nut 2 and the described steel plate washer 4; described spring 3 outsides scribble the anti-corrosion protection film, as polytetrafluoroethylene.The bottom of described steel plate washer 4 is enclosed with etch-proof PP film, as ethylene propylene diene rubber.
Battery case is suppressed strength test, press Fig. 1 mode, the utility model is installed, the threshold burst pressure of seal casinghousing is 0.11Mpa (hydraulic pressure).(for example: the utility model is opened in the time of 0.02Mpa (hydraulic pressure)) when inside battery reaches certain pressure.We can be by changing described spring 3 material, length, change the critical pressure that the utility model is opened.Can be according to following content operation:
The first step: use different springs that operating pressure of the present utility model is preset as 0.02Mpa (hydraulic pressure);
Second step: constantly exert pressure by giving inside battery, when cell internal pressure 〉=0.02Mpa (hydraulic pressure), observe the utility model and whether move, up to the utility model action, the actual pressure value on the recording manometer.
The 3rd step: the utility model is blocked,, break, the actual pressure value on the recording manometer (being 0.11Mpa) up to battery container by constantly applying hydraulic pressure to inside battery.
Claims (3)
1. the explosion-protection equipment of a lithium ion battery, it is characterized in that: described explosion-protection equipment comprises battery cover (1), cap nut (2), spring (3), steel plate washer (4), described cap nut (2) is arranged on described battery cover (1) top, the center of described battery cover (1) is provided with screwed hole, in the screwed hole of described battery cover (1), be provided with described steel plate washer (4), be provided with described spring (3) between described cap nut (2) and the described steel plate washer (4).
2. the explosion-protection equipment of lithium ion battery according to claim 1, it is characterized in that: the bottom of described steel plate washer (4) is enclosed with etch-proof PP film.
3. the explosion-protection equipment of lithium ion battery according to claim 1, it is characterized in that: described spring (3) outside scribbles the anti-corrosion protection film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200613471U CN201438479U (en) | 2009-07-28 | 2009-07-28 | Explosion-proof unit for lithium ion batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200613471U CN201438479U (en) | 2009-07-28 | 2009-07-28 | Explosion-proof unit for lithium ion batteries |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201438479U true CN201438479U (en) | 2010-04-14 |
Family
ID=42400450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200613471U Expired - Fee Related CN201438479U (en) | 2009-07-28 | 2009-07-28 | Explosion-proof unit for lithium ion batteries |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201438479U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151479A (en) * | 2013-01-31 | 2013-06-12 | 浙江努奥罗新能源科技有限公司 | Energy storage battery for coal mine and battery core thereof |
| CN103358322A (en) * | 2012-04-02 | 2013-10-23 | 精工爱普生株式会社 | Robot |
| CN105789518A (en) * | 2016-04-06 | 2016-07-20 | 河南环宇赛尔新能源科技有限公司 | Soft-package lithium ion battery with safety valve |
| CN108807785A (en) * | 2018-06-29 | 2018-11-13 | 北京新能源汽车股份有限公司 | A kind of explosion-proof device of power battery, power battery and electric vehicle |
-
2009
- 2009-07-28 CN CN2009200613471U patent/CN201438479U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103358322A (en) * | 2012-04-02 | 2013-10-23 | 精工爱普生株式会社 | Robot |
| CN103831844A (en) * | 2012-04-02 | 2014-06-04 | 精工爱普生株式会社 | Robot |
| CN103151479A (en) * | 2013-01-31 | 2013-06-12 | 浙江努奥罗新能源科技有限公司 | Energy storage battery for coal mine and battery core thereof |
| CN103151479B (en) * | 2013-01-31 | 2015-10-07 | 浙江努奥罗新能源科技有限公司 | A kind of colliery energy-storage battery and battery core thereof |
| CN105789518A (en) * | 2016-04-06 | 2016-07-20 | 河南环宇赛尔新能源科技有限公司 | Soft-package lithium ion battery with safety valve |
| CN108807785A (en) * | 2018-06-29 | 2018-11-13 | 北京新能源汽车股份有限公司 | A kind of explosion-proof device of power battery, power battery and electric vehicle |
| CN108807785B (en) * | 2018-06-29 | 2021-08-03 | 北京新能源汽车股份有限公司 | Power battery explosion-proof device, power battery and electric automobile |
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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: LIAOYUAN LITHIUM SOURCE ENERGY INDUSTRY CO., LTD. Free format text: FORMER OWNER: ZHUHAI LITHIUM POWER INVESTMENT CO., LTD. Effective date: 20100611 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHUHAI LITHIUM POWER INVESTMENT CO., LTD. Free format text: FORMER NAME: ZHUHAI LITHIUM INVESTMENT CO., LTD. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 519015 UNIT 5, 24/F, OFFICE BUILDING OF YUECAI BLOCK, NO.188, JIDAJINGSHAN ROAD, ZHUHAI CITY, GUANGDONG PROVINCE TO: 136200 YOUYI INDUSTRY PARK, ECONOMIC DEVELOPMENT ZONE, LIAOYUAN CITY,JILIN PROVINCE |
|
| CP03 | Change of name, title or address |
Address after: 519015 Guangdong province Zhuhai Jida Jingshan Hill Road No. 188 Yuecai building 24 storey office building 5 unit Patentee after: Lithium Energy Power Investment Co.,Ltd. Address before: 519001 Guangdong city of Zhuhai province Guangdong Road No. 1150 International Financial Hotel, room 1113 Patentee before: ZHUHAI LITHIUM ENERGY INVEST C |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100611 Address after: 136200 friendship Industrial Zone, Liaoyuan Economic Development Zone, Jilin, China Patentee after: Liaoyuan Liyuan Power Energy Industry Co.,Ltd. Address before: 519015 Guangdong province Zhuhai Jida Jingshan Hill Road No. 188 Yuecai building 24 storey office building 5 unit Patentee before: Lithium Energy Power Investment Co.,Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: ZHUHAI LITHIUM NEW ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: LIAOYUAN LITHIUM POWER ENERGY INDUSTRY CO., LTD. Effective date: 20110304 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 136200 YOUYI INDUSTRIAL PARK, ECONOMIC DEVELOPMENT ZONE, LIAOYUAN CITY, JILIN PROVINCE TO: 519015 2406, OFFICE BUILDING, YUECAI BUILDING, NO.188, JINGSHAN ROAD, JIDA, ZHUHAI CITY, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110304 Address after: 519015 Guangdong province Zhuhai Jida Jingshan Hill Road No. 188 Yuecai building office building 2406 Patentee after: ZHUHAI LIYUAN NEW ENERGY TECHNOLOGY Co.,Ltd. Address before: 136200 friendship Industrial Zone, Liaoyuan Economic Development Zone, Jilin, China Patentee before: Liaoyuan Liyuan Power Energy Industry Co.,Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 519000 Guangdong province Zhuhai Jida approach road No. 236 Building 1 Room 302 Patentee after: ZHUHAI LIYUAN NEW ENERGY TECHNOLOGY Co.,Ltd. Address before: 519015 Guangdong province Zhuhai Jida Jingshan Hill Road No. 188 Yuecai building office building 2406 Patentee before: ZHUHAI LIYUAN NEW ENERGY TECHNOLOGY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100414 Termination date: 20160728 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |