CN104253255A - Secondary explosion-proof device of storage battery - Google Patents
Secondary explosion-proof device of storage battery Download PDFInfo
- Publication number
- CN104253255A CN104253255A CN201310266404.0A CN201310266404A CN104253255A CN 104253255 A CN104253255 A CN 104253255A CN 201310266404 A CN201310266404 A CN 201310266404A CN 104253255 A CN104253255 A CN 104253255A
- Authority
- CN
- China
- Prior art keywords
- explosion
- battery
- valve body
- proof
- storage 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.)
- Pending
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/317—Re-sealable arrangements
- H01M50/325—Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
- H01M50/333—Spring-loaded vent valves
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/317—Re-sealable arrangements
- H01M50/325—Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
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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
Abstract
The invention discloses a secondary explosion-proof device of a storage battery, relates to a safety protection device of the storage battery, in particular to an explosion-proof exhaust device of the storage device, and mainly solves the known problems that the battery is blown up or even explodes due to temperature generated in the use or charge-discharge processes of the storage battery and the storage battery with the capacity larger than 50Ah is scrapped once the explosion-proof device arranged on the storage battery is started due to the fact that the explosion-proof device is disposable. The secondary explosion-proof device is characterized in that a valve body is fixed on a battery cover plate, a middle hole communicated with the interior of the battery is arranged on the valve body, and an explosion-proof cover is connected onto the valve body; a sealing gasket, a press plate and a spring are arranged between the explosion-proof cover and the valve body; and a through hole is formed in the explosion-proof cover in the axial direction. An explosion-proof valve is arranged on the storage cover plate, the middle hole formed in the valve body is opened to discharge air in the battery when pressure in the battery is larger than the set value and is sealed when pressure in the battery is smaller than the set value, and therefore scrapping of the battery due to explosion caused by too much pressure in the battery is avoided.
Description
Technical field
The present invention relates to the safety guard of storage battery, specifically relate to the exhaust apparatus of secondary battery anti-explosion.
Background technology
Present storage battery all can the certain temperature of generation more or less when charging and discharging or effect, and can not ensure that in cell production process the moisture in battery core is processed clean completely, so the decomposition of electrolyte can be caused and produce gas, the slight internal resistance of cell that causes increases, battery blow-up, serious meeting causes battery explosion, thus produces security incident.Now battery capacity commercially is all provided with explosion-protection equipment substantially more than 50Ah, but is all disposable.Because the cost of jumbo storage battery is very high, if battery makes explosion-protection equipment start because of the gas of inner generation, although safety, owing to being disposable, then storage battery is scrapped.
Summary of the invention
The object of the invention is for above-mentioned deficiency, and the storage battery proposed is in discharge and recharge or use procedure, the gas that internal storage battery produces reaches the certain pressure of a certain amount of rear generation and can automatically discharge, then continue to use, can not set off an explosion and storage battery be scrapped, the quality of storage battery and the storage battery secondary explosion-protection equipment in life-span can not be affected.
Technical solution of the present invention is: a kind of storage battery secondary explosion-protection equipment is: on cover plate of storage battery, be fixed with valve body, valve body is provided with the mesopore be connected with inside battery, valve body is connected with Explosion-proof cap, be provided with sealing gasket, compressing tablet and spring between Explosion-proof cap and valve body, Explosion-proof cap is provided with through hole vertically.
Explosion-proof cap described in technical solution of the present invention is connected on valve body by the internal thread on it.
Spring described in technical solution of the present invention is Pagoda-shaped, and one end of spring is connected on valve body by compressing tablet and sealing gasket, and the other end withstands in Explosion-proof cap.
The present invention adds an explosion-proof valve in the middle of the positive pole of existing cover plate of storage battery and the conductive pole of negative pole, it is primarily of polytetrafluoroethylene valve body, butyl rubber sealing gasket, stainless steel compressing tablet, stainless steel spring and ABS Explosion-proof cap composition, the pressure of design is 2kg, when internal storage battery pressure reaches 2kg, stainless steel spring can shrink because of pressure, inside battery gas is discharged, when internal storage battery pressure is less than 2kg, stainless steel spring restores to the original state, battery continues sealing, keep the pressure of inside battery to be less than 2kg always, thus when making storage battery in discharge and recharge or use procedure as occurred that cell internal pressure is excessive, can not set off an explosion and scrap.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, an explosion-proof valve is provided with between positive and negative electrode conductive pole on battery cover board 2, explosion-proof valve comprises valve body 6 and Explosion-proof cap 1, valve body 6 is fixed on battery cover board 2, an entirety is formed with battery cover board 2, valve body 6 is provided with and the mesopore be connected in battery, valve body 6 adopts polytetrafluoroethylmaterial material injection molded together with battery cover board 2; Explosion-proof cap 1 is a lid being provided with through hole vertically, Explosion-proof cap 1 is connected on valve body 6 by internal thread, stage clip 3 is provided with between Explosion-proof cap 1 and valve body 6, compressing tablet 4 and sealing gasket 5, stage clip 3 adopts Pagoda-shaped spring, one end is pressed on compressing tablet 4, is connected with sealing gasket 5 by compressing tablet 4 with valve body 6, and the other end of stage clip 3 withstands in Explosion-proof cap 1; Sealing gasket 5 adopts good seal performance and corrosion resistant butyl material makes, and compressing tablet 4 and spring 3 adopt stainless steel material, and Explosion-proof cap 1 adopts high, the lightweight ABS material injection mo(u)lding of hardness; Operation principle: when battery is in discharge and recharge, if cell internal pressure exceedes set point, gas in battery is discharged from the mesopore valve body 6, the spring 3 be located between valve body 6 and Explosion-proof cap 1 is shunk, gas is discharged outside battery from the through hole on the mesopore valve body 6 and Explosion-proof cap 1, and when cell internal pressure is less than set point, spring 3 restores, mesopore sealing on valve body 6, thus avoid that cell internal pressure is excessive to be caused battery explosion and scrap.
Claims (3)
1. a storage battery secondary explosion-protection equipment, it is characterized in that: on battery cover board (2), be fixed with valve body (6), valve body (6) is provided with the mesopore be connected with inside battery, valve body (6) is connected with Explosion-proof cap (1), be provided with sealing gasket (5), compressing tablet (4) and spring (3) between Explosion-proof cap (1) and valve body (6), Explosion-proof cap (1) is provided with through hole vertically.
2. storage battery secondary explosion-protection equipment according to claim 1, is characterized in that: described Explosion-proof cap (1) is connected on valve body (6) by the internal thread on it.
3. storage battery secondary explosion-protection equipment according to claim 1, is characterized in that: described spring (3) is Pagoda-shaped, and one end of spring (3) is connected on valve body (6) by compressing tablet (4) and sealing gasket (5), and the other end withstands in Explosion-proof cap (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310266404.0A CN104253255A (en) | 2013-06-28 | 2013-06-28 | Secondary explosion-proof device of storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310266404.0A CN104253255A (en) | 2013-06-28 | 2013-06-28 | Secondary explosion-proof device of storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104253255A true CN104253255A (en) | 2014-12-31 |
Family
ID=52187957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310266404.0A Pending CN104253255A (en) | 2013-06-28 | 2013-06-28 | Secondary explosion-proof device of storage battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104253255A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109980153A (en) * | 2017-12-28 | 2019-07-05 | 广州倬粤动力新能源有限公司 | A kind of environmental protection carbon gold horizon battery air releasing valve structure |
| CN110168772A (en) * | 2017-08-29 | 2019-08-23 | 株式会社Lg化学 | Pouch-typed secondary battery including air discharge guide device |
| CN112103427A (en) * | 2020-09-08 | 2020-12-18 | 上海航天电源技术有限责任公司 | Immersed liquid-cooled battery seal box, battery module and power supply system |
| CN112103449A (en) * | 2020-11-17 | 2020-12-18 | 南京网安视智能系统有限公司 | Storage battery shell |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0831397A (en) * | 1994-07-15 | 1996-02-02 | Matsushita Electric Ind Co Ltd | Explosion-proof battery |
| CN102324479A (en) * | 2011-09-23 | 2012-01-18 | 奇瑞汽车股份有限公司 | Anti-explosion valve for power lithium ion battery |
| CN202333010U (en) * | 2011-11-16 | 2012-07-11 | 南京嘉倬能源科技有限公司 | Resetting anti-explosion safety device for lithium secondary battery |
| CN102569898A (en) * | 2011-11-16 | 2012-07-11 | 南京嘉倬能源科技有限公司 | Lithium-series secondary battery sealing and forming device and process |
| CN103000846A (en) * | 2012-08-13 | 2013-03-27 | 刘立文 | Early-warning device for explosion protection of storage battery |
| CN203300726U (en) * | 2013-06-28 | 2013-11-20 | 襄阳正信航空技术有限公司 | Secondary explosion-proof device of storage battery |
-
2013
- 2013-06-28 CN CN201310266404.0A patent/CN104253255A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0831397A (en) * | 1994-07-15 | 1996-02-02 | Matsushita Electric Ind Co Ltd | Explosion-proof battery |
| CN102324479A (en) * | 2011-09-23 | 2012-01-18 | 奇瑞汽车股份有限公司 | Anti-explosion valve for power lithium ion battery |
| CN202333010U (en) * | 2011-11-16 | 2012-07-11 | 南京嘉倬能源科技有限公司 | Resetting anti-explosion safety device for lithium secondary battery |
| CN102569898A (en) * | 2011-11-16 | 2012-07-11 | 南京嘉倬能源科技有限公司 | Lithium-series secondary battery sealing and forming device and process |
| CN103000846A (en) * | 2012-08-13 | 2013-03-27 | 刘立文 | Early-warning device for explosion protection of storage battery |
| CN203300726U (en) * | 2013-06-28 | 2013-11-20 | 襄阳正信航空技术有限公司 | Secondary explosion-proof device of storage battery |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110168772A (en) * | 2017-08-29 | 2019-08-23 | 株式会社Lg化学 | Pouch-typed secondary battery including air discharge guide device |
| CN110168772B (en) * | 2017-08-29 | 2021-11-09 | 株式会社Lg化学 | Pouch-shaped secondary battery including exhaust gas guide device |
| US11189881B2 (en) | 2017-08-29 | 2021-11-30 | Lg Chem, Ltd. | Pouch-shaped secondary battery comprising venting guidance device |
| CN109980153A (en) * | 2017-12-28 | 2019-07-05 | 广州倬粤动力新能源有限公司 | A kind of environmental protection carbon gold horizon battery air releasing valve structure |
| CN112103427A (en) * | 2020-09-08 | 2020-12-18 | 上海航天电源技术有限责任公司 | Immersed liquid-cooled battery seal box, battery module and power supply system |
| CN112103449A (en) * | 2020-11-17 | 2020-12-18 | 南京网安视智能系统有限公司 | Storage battery shell |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141231 |