CN1983674A - Explosion-proof device of lithium series battery - Google Patents
Explosion-proof device of lithium series battery Download PDFInfo
- Publication number
- CN1983674A CN1983674A CNA2005101223188A CN200510122318A CN1983674A CN 1983674 A CN1983674 A CN 1983674A CN A2005101223188 A CNA2005101223188 A CN A2005101223188A CN 200510122318 A CN200510122318 A CN 200510122318A CN 1983674 A CN1983674 A CN 1983674A
- Authority
- CN
- China
- Prior art keywords
- explosion
- proof device
- series battery
- film material
- lithium series
- 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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- 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)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention is concerned with the explosion-proof equipment of lithium battery, including: the base body with deflating hole, and the film material, the characteristic is: sets the positive temperature coefficient thermistor with deflating hole between the base body and the film material, sticks the base body, the film material and the positive temperature coefficient thermistor as a whole by the conductive glue. The film material breaks when the inner pressure increase, because between the base body and the film material sets the positive temperature coefficient thermistor with deflating hole, in order to get the high pressure safety deflating; the positive temperature coefficient thermistor cut the power when the temperature of the batter increase, in order to get high pressure safety deflating and improve the safety of the battery.
Description
Technical field
The invention belongs to the lithium series battery technical field of safety devices, particularly relate to a kind of explosion-proof device of lithium series battery.
Background technology
Present known lithium battery, lithium ion battery explosion-proof device have polytype, as covering indentation, impression, groove, plug, fracturing diaphragm, spring rubber and hot temperature coefficient of resistance etc. at battery container or battery case, but all existence or function singleness or baroque problem in various degree, safe end cap as Chinese patent CN2561100 lithium ion battery discloses a kind of and the bonding rupture pressure disc of matrix, this apparatus structure is simple, but this structure battery does not have the overheat protector function; The lithium battery and the CN2405314 lithium battery safety guard of CN2396513 band safety guard have used semistor as safety device, and this structure battery can play overheat protector well when temperature is too high; The safety anti-explosive structure of the improved cylindrical lithium ion battery of CN2505987 has been used the composite construction of semistor, outage sheet, fracturing diaphragm but the structure more complicated.
Summary of the invention
The present invention provides a kind of simple in structure for solving problems of the prior art, has the explosion-proof device of lithium series battery of excess temperature, over-voltage protecting function simultaneously.
The present invention for the technical scheme that solves the technical problem employing that exists in the known technology is: explosion-proof device of lithium series battery, comprise the matrix, the thin-film material that have air vent, be characterized in: be provided with the semistor that has air vent between described matrix and the thin-film material, stick to one by conducting resinl between matrix, semistor and the film.
The present invention can also take following technical measures to realize: described thin-film material is the material of plastic material or metal material or plastics and metal composite; Described plastic material is any one or two kinds of above compounds in polyethylene, polypropylene, polytetrafluoroethylene, polyester, the halogenated hydrocarbon polymer; Described metal material is any or its alloy in gold, silver, iron, aluminium, copper, the nickel; Described low softening point hot melt material is any one or two kinds of above compounds in modified polypropene, modified poly ethylene, polyester, vinylacetate, terpene compound, rosin, the paraffin; Described conducting resinl is any one or two kinds of above compounds in modified polypropene, modified poly ethylene, polyester, vinylacetate, terpene compound, rosin, the paraffin; The air vent of described matrix and semistor is circular.
Advantage and good effect that the present invention has are: owing to be provided with the semistor that has air vent between matrix and thin-film material, when cell internal pressure increased, thin-film material broke, and played high-voltage safety venting effect; When battery temperature raise, the semistor outage played high-voltage safety venting effect, has improved battery security.
Description of drawings
Fig. 1 is an explosion-proof device of lithium series battery structural representation of the present invention;
Label among the figure is respectively: 1. matrix; 2. matrix air vent; 3. semistor; 4. semistor air vent; 5. conducting resinl; 7. thin-film material.
Embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
Embodiment 1: see also Fig. 1, on matrix 1, offer air vent 2, the semistor 3 that has semistor air vent 4 is bonded on matrix 1 by conducting resinl 5, and thin-film material 7 bonds on the semistor 3 by conducting resinl 5.Thin-film material is selected plastic material for use, and plastic material can be one or more the compound in polyethylene, polypropylene, polytetrafluoroethylene, polyester, the halogenated hydrocarbon polymer; Also can be metal material, metal material can be a kind of or its alloy in aluminium, copper, the nickel; It can also be the composite material of above-mentioned plastic material and metal material.The shape of air vent can be arbitrarily, and optimum shape is circular.Conducting resinl can be selected one or more the compound in modified polypropene, modified poly ethylene, polyester, vinylacetate, terpene compound, rosin, the paraffin for use.
Operating principle of the present invention is, when cell internal pressure increases, and the thin-film material realization safety discharging air that breaks; When battery temperature raise, the semistor outage had guaranteed cell safety.
Claims (6)
1. explosion-proof device of lithium series battery, comprise the matrix, the thin-film material that have air vent, it is characterized in that: be provided with the semistor that has air vent between described matrix and the thin-film material, stick to one by conducting resinl between matrix, semistor and the film.
2. explosion-proof device of lithium series battery according to claim 1 is characterized in that: described thin-film material is the material of plastic material or metal material or plastics and metal composite.
3. explosion-proof device of lithium series battery according to claim 2 is characterized in that: described plastic material is any one or two kinds of above compounds in polyethylene, polypropylene, polytetrafluoroethylene, polyester, the halogenated hydrocarbon polymer; Described metal material is any or its alloy in gold, silver, iron, aluminium, copper, the nickel.
4. explosion-proof device of lithium series battery according to claim 1 is characterized in that: described low softening point hot melt material is any one or two kinds of above compounds in modified polypropene, modified poly ethylene, polyester, vinylacetate, terpene compound, rosin, the paraffin.
5. explosion-proof device of lithium series battery according to claim 1 is characterized in that: described conducting resinl is any one or two kinds of above compounds in modified polypropene, modified poly ethylene, polyester, vinylacetate, terpene compound, rosin, the paraffin.
6. explosion-proof device of lithium series battery according to claim 1 is characterized in that: the air vent of described matrix and semistor is for circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005101223188A CN1983674A (en) | 2005-12-13 | 2005-12-13 | Explosion-proof device of lithium series battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005101223188A CN1983674A (en) | 2005-12-13 | 2005-12-13 | Explosion-proof device of lithium series battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1983674A true CN1983674A (en) | 2007-06-20 |
Family
ID=38166022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005101223188A Pending CN1983674A (en) | 2005-12-13 | 2005-12-13 | Explosion-proof device of lithium series battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1983674A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074672A (en) * | 2010-12-30 | 2011-05-25 | 东莞新能源科技有限公司 | Explosion-proof device for power battery |
| CN102280654A (en) * | 2010-06-11 | 2011-12-14 | 深圳市比克电池有限公司 | Lithium ion battery |
| CN110400895A (en) * | 2019-07-30 | 2019-11-01 | 宁德时代新能源科技股份有限公司 | Battery module, secondary battery and top cover assembly thereof |
-
2005
- 2005-12-13 CN CNA2005101223188A patent/CN1983674A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280654A (en) * | 2010-06-11 | 2011-12-14 | 深圳市比克电池有限公司 | Lithium ion battery |
| CN102280654B (en) * | 2010-06-11 | 2015-06-17 | 深圳市比克电池有限公司 | Lithium ion battery |
| CN102074672A (en) * | 2010-12-30 | 2011-05-25 | 东莞新能源科技有限公司 | Explosion-proof device for power battery |
| CN110400895A (en) * | 2019-07-30 | 2019-11-01 | 宁德时代新能源科技股份有限公司 | Battery module, secondary battery and top cover assembly thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |