CN102074671A - Battery explosion-proof device - Google Patents
Battery explosion-proof device Download PDFInfo
- Publication number
- CN102074671A CN102074671A CN2010106093406A CN201010609340A CN102074671A CN 102074671 A CN102074671 A CN 102074671A CN 2010106093406 A CN2010106093406 A CN 2010106093406A CN 201010609340 A CN201010609340 A CN 201010609340A CN 102074671 A CN102074671 A CN 102074671A
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- China
- Prior art keywords
- explosion
- battery
- proof plug
- proof
- batteries
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- 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.)
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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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- Gas Exhaust Devices For Batteries (AREA)
Abstract
The invention discloses a battery explosion-proof device, which comprises a battery top cover and an explosion-proof plug, wherein an explosion-proof hole is drilled on the battery top cover, and the explosion-proof plug is hermetically installed in the explosion-proof hole. The battery explosion-proof device disclosed by the invention has a simple and compact structure, the explosion-proof pressure is easy to control, and the safety performance of a battery can be markedly improved.
Description
Technical field
The present invention relates to a kind of explosion protection for batteries, especially a kind of explosion protection for batteries with good safety energy.
Background technology
At present, in order to guarantee the safe handling of battery, all be provided with explosion-protection equipment on the battery usually.Explosion-protection equipment is the weak link in the battery, and when the air pressure of inside battery was increased to certain value, explosion-protection equipment can be opened disappointing, prevents that battery from blasting.
Existing battery generally uses explosion-proof valve, rupture pressure disc, explosion-proof pin or explosion-proof indentation etc., and its principle is to utilize metallic film (as Copper Foil, aluminium foil etc.) being subjected to explosion under certain pressure mostly, thereby obtains certain security performance.
But there is following defective at least in the explosion-protection equipment of existing battery: the metal rupture pressure disc places electrochemical environment complicated in the battery for a long time, therefore is subjected to chemical corrosion and electrochemical corrosion easily and causes perforation losing efficacy, and has influenced the safe handling of battery.
In view of this, necessary provide a kind of have good safety can explosion protection for batteries.
Summary of the invention
The objective of the invention is to: a kind of explosion protection for batteries with good safety energy is provided.
To achieve these goals, the invention provides a kind of explosion protection for batteries, it comprises battery cap that offers explosionproof hole and the explosion-proof plug that is seal-installed in the explosionproof hole.
As a kind of improvement of explosion protection for batteries of the present invention, described explosion-proof plug is to make by having plastoelastic anti-corrosion material.
As a kind of improvement of explosion protection for batteries of the present invention, described explosion-proof plug is to be made by fluorubber, vulcanized rubber, phenylate family macromolecule material.
As a kind of improvement of explosion protection for batteries of the present invention, described explosion-proof plug is provided with one deck can prevent the flexible protective layer that soaks into and wear out.
As a kind of improvement of explosion protection for batteries of the present invention, described flexible protective layer is to be made by metallic film.
As a kind of improvement of explosion protection for batteries of the present invention, described flexible protective layer is to be made by aluminium foil or Copper Foil.
As a kind of improvement of explosion protection for batteries of the present invention, described flexible protective layer stretches or the electrolysis process moulding by metallic film.
As a kind of improvement of explosion protection for batteries of the present invention, the stiction between described explosion-proof plug and the described battery cap and the burst pressure of battery are suitable.
With respect to prior art, explosion protection for batteries of the present invention simple and compact for structure, explosion-proof pressure are easy to control, can significantly improve the security performance of battery.
Description of drawings
Below in conjunction with the drawings and specific embodiments, describe explosion protection for batteries of the present invention and useful technique effect thereof in detail.
Fig. 1 is the cross-sectional schematic of explosion protection for batteries of the present invention.
Embodiment
See also shown in Figure 1ly, explosion protection for batteries 10 of the present invention can be installed on the battery container (not shown) of battery, is used to improve the security performance of battery, and it comprises the battery cap 20 that is provided with explosionproof hole 202 and is seal-installed on explosion-proof plug 30 in the explosionproof hole 202.
Battery cap 20 is to be made by stainless steel material, which is provided with explosionproof hole 202.Different with the structure of existing battery, in illustrated embodiment, explosionproof hole 202 can serve as liquid injection hole simultaneously, therefore can reduce the perforate quantity on the battery cap 20, improves the sealing property of battery.
Explosion-proof plug 30 is to be made by the material with favorable elasticity and corrosion resistance, and according to a preferred embodiment of the present invention, explosion-proof plug 30 is to be made by fluorubber, vulcanized rubber or phenylate family macromolecule material.The concrete moulding process of explosion-proof plug 30 is not particularly limited, and can also can pass through compression molding by injection moulding, can also pass through the machine cuts moulding.
For the infiltration that prevents explosion-proof plug 30 and aging, the surface of explosion-proof plug 30 coats one deck can prevent the flexible protective layer 40 that soaks into and wear out.According to a preferred embodiment of the present invention, flexible protective layer 40 is a metal film layer, and as aluminium foil or Copper Foil, flexible protective layer 40 can be coated on the surface of explosion-proof plug 30 by the bayonet socket pincers.According to a preferred embodiment of the present invention; flexible protective layer 40 can stretch or the electrolysis process moulding by metallic film; stretching is meant sheet metal is compressed into the thickness that needs through roller or roll squeezer, and electrolysis is meant and makes the ion reduction and be adsorbed on the explosion-proof plug 30 in electrolyte.
In the preparation process of battery, at first, electric core (not shown) is placed battery container; Secondly,, and battery cap 20 is seal-installed on the battery container to battery case perfusion in vivo electrolyte by the explosionproof hole 202 offered on the battery cap 20; Once more, clog explosionproof hole 202, change into subsequently with explosion-proof plug 30 sealings; Then, unplug explosion-proof plug 30, exhaust and vacuumizing; At last, explosion-proof plug 30 beyond the Great Wall, and clamp 40 sealing of external packing flexible protective layer with bayonet socket.
When explosion-proof plug 30 is filled in the explosionproof hole 202, the outer surface of explosion-proof plug 30 and produce stiction between the battery cap 20 of explosionproof hole 202, stiction can calculate according to the burst pressure of battery to be determined, promptly converses static friction by the maximum burst pressure of battery and the cross-sectional area of explosion-proof plug 30.Explosion-proof plug 30 has good sealing property in explosionproof hole 202, before explosion, should guarantee that the gas of inside battery and liquid do not leak.
When battery was in normal operating conditions, the pressure of inside battery at this moment, relied on the stiction between explosion-proof plug 30 and the battery cap 20 less than the stiction between explosion-proof plug 30 and the battery cap 20, and inside battery and outside seal are isolated.When the pressure of inside battery reached or surpass stiction between explosion-proof plug 30 and the battery cap 20, explosion-proof plug 30 can be backed down, and the gas pressure of inside battery is released, security incident such as therefore can prevent that battery from blasting.
In addition, if when the high temperature that electric core short circuit produces surpasses 400 ℃, explosion-proof plug 30 can flow or fusion in deliquescing, and explosionproof hole 202 also can be opened automatically, can reach explosion-proof purpose.
In conjunction with top detailed description as can be seen, with respect to prior art, explosion protection for batteries 10 of the present invention has the following advantages: 1) simple and compact for structure, explosion-proof pressure is easy to control, can significantly improve the security performance of battery; 2) electrolyte resistance corrosion, air-tightness is good, and is explosion-proof reliable, long service life; 3) liquid injection hole and explosionproof hole unite two into one, and explosion-proof plug 30 is installed on the liquid injection hole, have reduced the perforate on the battery cap 20, have improved the sealing property of battery; 4) explosion-proof plug 30 can be changed in real time, and convenient the recycling avoided scrapping the waste that causes because of finished product battery anti-explosion erosion.
The announcement of book and instruction according to the above description, those skilled in the art in the invention can also carry out suitable change and modification to above-mentioned execution mode.Therefore, the embodiment that discloses and describe above the present invention is not limited to also should fall in the protection range of claim of the present invention modifications and changes more of the present invention.In addition, although used some specific terms in this specification, these terms do not constitute any restriction to the present invention just for convenience of description.
Claims (8)
1. an explosion protection for batteries is characterized in that: comprise battery cap that offers explosionproof hole and the explosion-proof plug that is seal-installed in the explosionproof hole.
2. explosion protection for batteries according to claim 1 is characterized in that: described explosion-proof plug is to make by having plastoelastic anti-corrosion material.
3. explosion protection for batteries according to claim 1 is characterized in that: described explosion-proof plug is to be made by fluorubber, vulcanized rubber, phenylate family macromolecule material.
4. explosion protection for batteries according to claim 1 is characterized in that: described explosion-proof plug is provided with one deck can prevent the flexible protective layer that soaks into and wear out.
5. explosion protection for batteries according to claim 4 is characterized in that: described flexible protective layer is to be made by metallic film.
6. explosion protection for batteries according to claim 4 is characterized in that: described flexible protective layer is to be made by aluminium foil or Copper Foil.
7. according to claim 5 or 6 described explosion protection for batteries, it is characterized in that: described flexible protective layer stretches or the electrolysis process moulding by metallic film.
8. explosion protection for batteries according to claim 1 is characterized in that: the stiction between described explosion-proof plug and the battery cap and the burst pressure of battery are suitable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010609340.6A CN102074671B (en) | 2010-12-28 | 2010-12-28 | Explosion protection for batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010609340.6A CN102074671B (en) | 2010-12-28 | 2010-12-28 | Explosion protection for batteries |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102074671A true CN102074671A (en) | 2011-05-25 |
| CN102074671B CN102074671B (en) | 2016-07-27 |
Family
ID=44033103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010609340.6A Active CN102074671B (en) | 2010-12-28 | 2010-12-28 | Explosion protection for batteries |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102074671B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700515A (en) * | 2013-12-27 | 2014-04-02 | 亚欧益盟科技（北京）有限公司 | Supercapacitor |
| CN105719839A (en) * | 2016-04-06 | 2016-06-29 | 亚欧益盟科技（北京）有限公司 | Capacitor |
| WO2023045401A1 (en) * | 2021-09-27 | 2023-03-30 | 宁德时代新能源科技股份有限公司 | Electrolyte injection hole sealing apparatus, end cover assembly, battery cell, battery, and electrical device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1610799A (en) * | 2001-11-22 | 2005-04-27 | Nok株式会社 | Pressure release valve |
| CN2701082Y (en) * | 2004-06-01 | 2005-05-18 | 肇庆市风华锂电池有限公司 | Battery security sealing stopper and sealing cover plate and battery thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201562718U (en) * | 2009-10-09 | 2010-08-25 | 深圳市比克电池有限公司 | Battery with new pressure protection device |
-
2010
- 2010-12-28 CN CN201010609340.6A patent/CN102074671B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1610799A (en) * | 2001-11-22 | 2005-04-27 | Nok株式会社 | Pressure release valve |
| CN2701082Y (en) * | 2004-06-01 | 2005-05-18 | 肇庆市风华锂电池有限公司 | Battery security sealing stopper and sealing cover plate and battery thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700515A (en) * | 2013-12-27 | 2014-04-02 | 亚欧益盟科技（北京）有限公司 | Supercapacitor |
| CN105719839A (en) * | 2016-04-06 | 2016-06-29 | 亚欧益盟科技（北京）有限公司 | Capacitor |
| WO2023045401A1 (en) * | 2021-09-27 | 2023-03-30 | 宁德时代新能源科技股份有限公司 | Electrolyte injection hole sealing apparatus, end cover assembly, battery cell, battery, and electrical device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102074671B (en) | 2016-07-27 |
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Effective date of registration: 20180614 Address after: 352100 Xingang Road, Zhangwan Town, Jiaocheng District, Ningde, Fujian 1 Co-patentee after: Dongguan Amperex Technology Co., Ltd. Patentee after: Ningde Amperex Technology Ltd. Address before: 523080 new energy technology park, Baima management area, Nancheng District, Dongguan, Guangdong Co-patentee before: Dongguan Amperex Technology Co., Ltd. Patentee before: Dongguan New Energy Source Electronic Sci-Tech Co., Ltd. |