CN2704119Y - Power type lithium ion battery disposable safety valve - Google Patents
Power type lithium ion battery disposable safety valve Download PDFInfo
- Publication number
- CN2704119Y CN2704119Y CN 200420010433 CN200420010433U CN2704119Y CN 2704119 Y CN2704119 Y CN 2704119Y CN 200420010433 CN200420010433 CN 200420010433 CN 200420010433 U CN200420010433 U CN 200420010433U CN 2704119 Y CN2704119 Y CN 2704119Y
- Authority
- CN
- China
- Prior art keywords
- rete
- sealing ring
- lithium ion
- safety valve
- type lithium
- 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 - Lifetime
Links
Classifications
-
- Y02E60/12—
Abstract
The utility model discloses a power type lithium ion battery disposable safety valve, comprising a valve body and a sealing ring. The utility model is characterized in that a film is sealed and fixed on the step which is arranged in the air outlet of the valve body. The sealing ring is pressed on the film, and a body with a needle which can communicate with the atmosphere is fixed on the sealing ring. The needle point of the body with the needle heads to the film with a safe distance of 0. 3 mm-0. 4 mm. When the pressure in the battery reaches a certain degree, the inside gas jacks up the film, and the needle point of the body with the needle on the upper part of the safety valve punctures the film. Thus, the goals of air leakage and explosion prevention are achieved.
Description
Technical field:
The utility model belongs to a kind of power-type lithium ion storage battery disposable safe valve.
Background technology:
Traditional safety valve all is repeatedly an openability as the safety valve of lead-acid battery, and after promptly inside battery reached certain pressure, safety valve was discharged gas, release pressure, and after inner pressure of battery descended, safety valve resetted.This safety valve can repeatedly repeat to open, if but be applied on the power lithium-ion rechargeable battery, because the severe corrosive of the strong polarity organic electrolyte of inside battery, the selection of sealing reliable material is difficulty relatively, and the possibility that contacts with atmosphere is arranged, be unfavorable for the stable of battery performance, when serious even set off an explosion.
Summary of the invention:
The purpose of this utility model is that design a kind ofly can prevent power-type lithium ion storage battery disposable safe valve explosion-proof under improper user mode.
Task of the present utility model is finished as follows, it includes valve body and sealing ring, it is characterized in that: on the valve body in the gas outlet on the step sealing and fixing one rete is arranged, be pressed with sealing ring on the rete, being fixed with one on the sealing ring can open to atmosphere band needle body, and the needle point of band needle body is the 0.3-0.4 millimeter towards rete from the distance of rete.After the pressure in the battery acquired a certain degree, internal gas will the jack-up rete, and the needle point on the band needle body of safety valve top will puncture rete, or the rete mechanical deformation breaks, and gas is discharged, and reaches the explosion-proof purpose of losing heart.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.Among the figure, 1. be with needle body, 2. valve body, 3. rete, 4. sealing ring, 5. gas passage.
Embodiment:
The rete of sealing ring 4 and metal forming or other material being made with band needle body 13 is pressed into seal on the step in the valve body 2 and compresses, and the needle point of being with needle body is towards rete, and needle point has the safe distance of 0.3-0.4 millimeter from rete.On the band needle body gas passage 5 is arranged.When the inside battery gas pressure acquired a certain degree, gas pressure will be heaved rete, and rete is contacted with needle point, punctured or the pressure break rete, and gas is released, and reduced cell internal pressure, reached explosion-proof purpose.The used material of rete can be metal forming or other thin materials such as aluminium, copper, nickel.
Claims (2)
1, power-type lithium ion storage battery disposable safe valve, it includes valve body and sealing ring, it is characterized in that: on the valve body in the gas outlet on the step sealing and fixing one rete is arranged, be pressed with sealing ring on the rete, being fixed with one on the sealing ring can open to atmosphere band needle body, and the needle point of band needle body has 0.3-0.4 millimeter safe distance towards rete.
2, power-type lithium ion storage battery disposable safe valve according to claim 1 is characterized in that rete can adopt metal forming or other thin material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420010433 CN2704119Y (en) | 2004-03-22 | 2004-03-22 | Power type lithium ion battery disposable safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420010433 CN2704119Y (en) | 2004-03-22 | 2004-03-22 | Power type lithium ion battery disposable safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2704119Y true CN2704119Y (en) | 2005-06-08 |
Family
ID=34768298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420010433 Expired - Lifetime CN2704119Y (en) | 2004-03-22 | 2004-03-22 | Power type lithium ion battery disposable safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2704119Y (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009082956A1 (en) * | 2007-12-25 | 2009-07-09 | Byd Company Limited | Electrochemical storage cell with blow out vents |
| WO2010124555A1 (en) * | 2009-04-30 | 2010-11-04 | Byd Company Limited | Battery safety vent and battery with the same |
| US8007935B2 (en) | 2006-10-30 | 2011-08-30 | Byd Co., Ltd. | Plate assembly, core and lithium ion battery |
| US8092936B2 (en) | 2007-12-25 | 2012-01-10 | Byd Co. Ltd. | Electrochemical cell having a coiled core |
| US8178225B2 (en) | 2007-11-29 | 2012-05-15 | Byd Co., Ltd. | Battery and preparation method thereof |
| US8178230B2 (en) | 2007-12-18 | 2012-05-15 | Byd Co., Ltd. | Battery pack |
| US8193770B2 (en) | 2007-12-25 | 2012-06-05 | BYD Co. Ltd | Battery system for a vehicle having an over-current/over-temperature protective feature |
| CN102687307A (en) * | 2009-10-05 | 2012-09-19 | 锂电池科技有限公司 | Electrochemical cell |
| US8276695B2 (en) | 2007-12-25 | 2012-10-02 | Byd Co. Ltd. | Battery electrode sheet |
| US8420254B2 (en) | 2007-12-25 | 2013-04-16 | Byd Co. Ltd. | End cover assembly for an electrochemical cell |
| CN107421682A (en) * | 2017-09-12 | 2017-12-01 | 东莞市振华新能源科技有限公司 | A kind of Stress control punctures inside lithium ion cell short-circuiting means automatically |
| EP3945626A1 (en) * | 2020-07-30 | 2022-02-02 | Commissariat à l'énergie atomique et aux énergies alternatives | Device that can be adapted to a cell for creating an incipient fracture on a wall of a cup of an electrochemical cell |
| CN114665217A (en) * | 2022-03-23 | 2022-06-24 | 云山新能源材料技术(深圳)有限公司 | Battery explosion-proof structure and cylindrical battery |
-
2004
- 2004-03-22 CN CN 200420010433 patent/CN2704119Y/en not_active Expired - Lifetime
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8007935B2 (en) | 2006-10-30 | 2011-08-30 | Byd Co., Ltd. | Plate assembly, core and lithium ion battery |
| US8178225B2 (en) | 2007-11-29 | 2012-05-15 | Byd Co., Ltd. | Battery and preparation method thereof |
| US8178230B2 (en) | 2007-12-18 | 2012-05-15 | Byd Co., Ltd. | Battery pack |
| US8399116B2 (en) | 2007-12-25 | 2013-03-19 | Byd Co. Ltd. | Optimized dimensional relationships for an electrochemical cell having a coiled core |
| US8420254B2 (en) | 2007-12-25 | 2013-04-16 | Byd Co. Ltd. | End cover assembly for an electrochemical cell |
| US10381632B2 (en) | 2007-12-25 | 2019-08-13 | Shenzhen Byd Auto R&D Company Limited | Construction of electrochemical storage cell with conductive bridge |
| US8193770B2 (en) | 2007-12-25 | 2012-06-05 | BYD Co. Ltd | Battery system for a vehicle having an over-current/over-temperature protective feature |
| US8202644B2 (en) | 2007-12-25 | 2012-06-19 | Byd Co. Ltd. | Protection cover for an end cap assembly of a battery cell |
| US10147930B2 (en) | 2007-12-25 | 2018-12-04 | Shenzhen Byd Auto R&D Company Limited | Construction of electrochemical storage cell with conductive block |
| US8276695B2 (en) | 2007-12-25 | 2012-10-02 | Byd Co. Ltd. | Battery electrode sheet |
| US9741996B2 (en) | 2007-12-25 | 2017-08-22 | Byd Co. Ltd. | Construction of electrochemical storage cell |
| US8383257B2 (en) | 2007-12-25 | 2013-02-26 | Byd Co. Ltd. | Electrochemical storage cell with blow out vents |
| WO2009082956A1 (en) * | 2007-12-25 | 2009-07-09 | Byd Company Limited | Electrochemical storage cell with blow out vents |
| US8404379B2 (en) | 2007-12-25 | 2013-03-26 | Byd Co., Ltd. | Vehicle with a battery system |
| US8092936B2 (en) | 2007-12-25 | 2012-01-10 | Byd Co. Ltd. | Electrochemical cell having a coiled core |
| EA019090B1 (en) * | 2007-12-25 | 2014-01-30 | Бид Компани Лимитед | Electrochemical storage cell with blow out vents |
| US8865335B2 (en) | 2007-12-25 | 2014-10-21 | Byd Co. Ltd. | Electrochemical storage cell |
| US8357462B2 (en) | 2009-04-30 | 2013-01-22 | Byd Company Limited | Battery safety vent and battery with the same |
| WO2010124555A1 (en) * | 2009-04-30 | 2010-11-04 | Byd Company Limited | Battery safety vent and battery with the same |
| CN102687307A (en) * | 2009-10-05 | 2012-09-19 | 锂电池科技有限公司 | Electrochemical cell |
| CN107421682A (en) * | 2017-09-12 | 2017-12-01 | 东莞市振华新能源科技有限公司 | A kind of Stress control punctures inside lithium ion cell short-circuiting means automatically |
| EP3945626A1 (en) * | 2020-07-30 | 2022-02-02 | Commissariat à l'énergie atomique et aux énergies alternatives | Device that can be adapted to a cell for creating an incipient fracture on a wall of a cup of an electrochemical cell |
| FR3113195A1 (en) * | 2020-07-30 | 2022-02-04 | Commissariat à l'Energie Atomique et aux Energies Alternatives | Device adaptable to a cell for creating an incipient fracture on a wall of a cup of an electrochemical cell |
| CN114665217A (en) * | 2022-03-23 | 2022-06-24 | 云山新能源材料技术(深圳)有限公司 | Battery explosion-proof structure and cylindrical battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JINLONG PRECISION COPPER TUBE GROUP CO., LTD. Free format text: FORMER NAME: HENAN JINLONG PRECISE COPPER PIPE CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 453002 No. 168, North Ring Road, Henan, Xinxiang Co-patentee after: Zhongke Science-Technology Co., Ltd., Xinxiang Patentee after: Jinlong Precision Copper Pipe Group Co., Ltd. Address before: 453000 No. 2 Xin Lu, Xinxiang, Henan Co-patentee before: Zhongke Science-Technology Co., Ltd., Xinxiang Patentee before: Henan Jinlong Precise Copper Pipe Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: ZHONGKE SCIENCE-TECHNOLOGY CO., LTD., XINXIANG Free format text: FORMER OWNER: JINLONG PRECISION COPPER TUBE GROUP CO., LTD. Effective date: 20101130 Free format text: FORMER OWNER: ZHONGKE SCIENCE-TECHNOLOGY CO., LTD., XINXIANG |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20101130 Address after: 453002 No. 168, North Ring Road, Henan, Xinxiang Patentee after: Zhongke Science-Technology Co., Ltd., Xinxiang Address before: 453002 No. 168, North Ring Road, Henan, Xinxiang Co-patentee before: Zhongke Science-Technology Co., Ltd., Xinxiang Patentee before: Jinlong Precision Copper Pipe Group Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140322 Granted publication date: 20050608 |