CN208256775U - A kind of explosion-proof lithium battery - Google Patents
A kind of explosion-proof lithium battery Download PDFInfo
- Publication number
- CN208256775U CN208256775U CN201820949611.4U CN201820949611U CN208256775U CN 208256775 U CN208256775 U CN 208256775U CN 201820949611 U CN201820949611 U CN 201820949611U CN 208256775 U CN208256775 U CN 208256775U
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- CN
- China
- Prior art keywords
- explosion
- lithium battery
- proof
- resistant enclosure
- enclosure
- 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
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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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Abstract
The utility model provides a kind of explosion-proof lithium battery, including lithium battery ontology, positive and negative electrode column, explosion-resistant enclosure and explosion-proof cap, the lithium battery ontology is set to inside the explosion-resistant enclosure, the explosion-resistant enclosure upper opening is simultaneously equipped with explosion-proof cap, and the flameproof enclosure is connect with the flame proof cap by insulated enclosure circle；The lithium battery ontology is connect by fastener with the explosion-resistant enclosure inner surface, and the carbonate explosion-proof layer that the endothermic reaction can occur when heated and generate carbon dioxide is filled in the gap between the lithium battery ontology and the flameproof enclosure；The explosion-proof shell is covered equipped with blast hole, and the blast hole is blind hole, and the blast hole bottom is equipped with rupture disk, and the rupture disk is equipped with annular recess.The beneficial effects of the utility model are: greatly improving the security protection performance of lithium battery, reduces battery and use security risk.
Description
Technical field
The utility model belongs to technical field of lithium batteries, more particularly, to a kind of explosion-proof lithium battery.
Background technique
Lithium battery is widely used due to having many advantages, such as that light-weight, small in size, capacitance is larger, charging rate is very fast
In in various products, including on household electrical appliance and electric vehicle.But lithium battery usually will appear fever, combustion in use
It burns even there is a phenomenon where exploding, existing lithium battery does not have explosion-proof characteristic to be held once overcharging very much in use
Explosion accident on fire is easily led to, the life security of people is directly endangered, less serious case influences host and uses, and severe one can also burn host and draw
Fire is played, unnecessary loss is caused, threatens the security of the lives and property of user.Occur in recent years a lot of because lithium battery fever is fired
Family fire accident caused by burning.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of lithium battery for preventing from generating explosion because of high temperature.
In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of explosion-proof lithium battery, including lithium electricity
Pond ontology, positive and negative electrode column, explosion-resistant enclosure and explosion-proof cap, the lithium battery ontology is set to inside the explosion-resistant enclosure, described
Explosion-resistant enclosure upper opening is simultaneously equipped with explosion-proof cap, and the explosion-proof cap is respectively arranged with the peace for installing the positive and negative electrode column
Fill hole, positive and negative electrode column is inserted into the explosion-resistant enclosure and contacts with the lithium battery bulk electrode, the flameproof enclosure with it is described
Flame proof cap is connected by insulated enclosure circle；The lithium battery ontology is connect by fastener with the explosion-resistant enclosure inner surface,
Being filled in gap between the lithium battery ontology and the flameproof enclosure, the endothermic reaction can occur when heated and generate two
The carbonate explosion-proof layer of carbonoxide；The explosion-proof shell is covered equipped with blast hole, and the blast hole is blind hole, the blast hole bottom
Equipped with rupture disk, the rupture disk is equipped with annular recess.
In technical solution, it is preferred that the explosion-resistant enclosure is elastoplastic shell, with a thickness of 10mm-12mm.
In technical solution, it is preferred that the explosion-resistant enclosure inner surface is equipped with cross explosion slot.
In technical solution, it is preferred that the rupture disk is rubber membrane.
In technical solution, it is preferred that the blast hole is the round hole of diameter 2mm-2.5mm.
In technical solution, it is preferred that the carbonate explosion-proof layer is sodium bicarbonate, saleratus, calcium bicarbonate, bicarbonate
Or mixtures thereof ammonium.
The utility model has the advantages and positive effects of: in use the endothermic reaction can occur simultaneously when being heated
The carbonate fire extinguishing material of carbon dioxide is generated as working media, heat absorption and starvation are carried out to battery, prevented
It is hot fried；When cell internal pressure increases, explosion-resistant enclosure and explosion-proof cap deform outward, when deformation reaches the limit of, blast hole
Stress is maximum, breaks through rupture disk and blast hole by annular recess, so that pressure leaks from blast hole, effectively prevent battery whole
Explosion greatly improves the security protection performance of lithium battery, reduces battery and uses security risk.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of an embodiment of the present invention.
Fig. 2 is the structural schematic diagram of an embodiment of the present invention.
In figure:
Specific embodiment
Embodiment 1
As shown in Figure 1, the present embodiment provides a kind of explosion-proof lithium battery, including it is lithium battery ontology 1, positive and negative electrode column 2, explosion-proof
Shell 3 and explosion-proof cap 4, lithium battery ontology 1 are set to inside explosion-resistant enclosure 3, and 3 upper opening of explosion-resistant enclosure is simultaneously equipped with explosion-proof shell
Lid 4, explosion-proof cap 4 are respectively arranged with the mounting hole of installation positive and negative electrode column 2, and positive and negative electrode column 2 is inserted into explosion-resistant enclosure 3 and lithium
The contact of 1 electrode of battery body, flameproof enclosure are connect with flame proof cap by insulated enclosure circle 5；Lithium battery ontology 1 passes through fastener
6 connect with 3 inner surface of explosion-resistant enclosure, and being filled in the gap between lithium battery ontology 1 and flameproof enclosure can occur when heated
The endothermic reaction and the carbonate explosion-proof layer 7 for generating carbon dioxide；Carbonate explosion-proof layer 7 is sodium bicarbonate, saleratus, bicarbonate
Or mixtures thereof calcium, ammonium hydrogen carbonate, in use the endothermic reaction can occur when being heated and generate the carbonic acid of carbon dioxide
Salt puts out a fire material as working media, carries out heat absorption and starvation to battery, prevents explosion on fire.
As shown in Fig. 2, explosion-proof cap 4 is equipped with blast hole 8, blast hole 8 is blind hole, and 8 bottom of blast hole is equipped with rupture disk
9, rupture disk 9 is equipped with annular recess 10, and blast hole 8 is the round hole of diameter 2mm-2.5mm, when cell internal pressure increases
When, explosion-resistant enclosure 3 and explosion-proof cap 4 deform outward, and when deformation reaches the limit of, 8 stress of blast hole is maximum, pass through annular recess 10
It breaks through rupture disk 9 and blast hole 8 and effectively prevent battery integrally to explode so that pressure leaks from blast hole 8.
Explosion-resistant enclosure 3 is elastoplastic shell, and with a thickness of 10mm-12mm, rupture disk 9 is rubber membrane.
3 inner surface of explosion-resistant enclosure is equipped with cross explosion slot 11, for assisting pressure release.
This explosion-proof lithium battery is in use can occur the endothermic reaction when being heated and generate the fire extinguishing material of carbon dioxide
Material is used as working media, carries out heat absorption and starvation to battery, prevents explosion on fire；When cell internal pressure increases
When, explosion-resistant enclosure 3 and explosion-proof cap 4 deform outward, and when deformation reaches the limit of, 8 stress of blast hole is maximum, pass through annular recess 10
It breaks through rupture disk 9 and blast hole 8 and effectively prevent battery integrally to explode so that pressure leaks from blast hole 8, greatly improve lithium electricity
The security protection performance in pond reduces battery and uses security risk.
One embodiment of the utility model is described in detail above, but the content is only the utility model
Preferred embodiment should not be considered as limiting the scope of the present invention.It is all to be made according to application scope of the utility model
All the changes and improvements etc., should still belong within the patent covering scope of the utility model.
Claims (5)
1. a kind of explosion-proof lithium battery, it is characterised in that: including lithium battery ontology, positive and negative electrode column, explosion-resistant enclosure and explosion-proof cap,
The lithium battery ontology is set to inside the explosion-resistant enclosure, and the explosion-resistant enclosure upper opening is simultaneously equipped with explosion-proof cap, described
Explosion-proof cap is respectively arranged with the mounting hole for installing the positive and negative electrode column, and positive and negative electrode column is inserted into the explosion-resistant enclosure and institute
The contact of lithium battery bulk electrode is stated, the explosion-resistant enclosure is connect with the explosion-proof cap by insulated enclosure circle；The lithium battery
Ontology is connect by fastener with the explosion-resistant enclosure inner surface, the gap between the lithium battery ontology and the explosion-resistant enclosure
In filled with the endothermic reaction can occur when heated and generate the carbonate explosion-proof layer of carbon dioxide；The explosion-proof shell, which covers, to be equipped with
Blast hole, the blast hole are blind hole, and the blast hole bottom is equipped with rupture disk, and the rupture disk is equipped with annular recess.
2. explosion-proof lithium battery according to claim 1, it is characterised in that: the explosion-resistant enclosure is elastoplastic shell, thick
Degree is 10mm-12mm.
3. explosion-proof lithium battery according to claim 1, it is characterised in that: it is quick-fried that the explosion-resistant enclosure inner surface is equipped with cross
Broken slot.
4. explosion-proof lithium battery according to claim 1, it is characterised in that: the rupture disk is rubber membrane.
5. explosion-proof lithium battery according to claim 1, it is characterised in that: the blast hole is the circle of diameter 2mm-2.5mm
Shape hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820949611.4U CN208256775U (en) | 2018-06-20 | 2018-06-20 | A kind of explosion-proof lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820949611.4U CN208256775U (en) | 2018-06-20 | 2018-06-20 | A kind of explosion-proof lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208256775U true CN208256775U (en) | 2018-12-18 |
Family
ID=64654458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820949611.4U Expired - Fee Related CN208256775U (en) | 2018-06-20 | 2018-06-20 | A kind of explosion-proof lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208256775U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115172954A (en) * | 2022-07-21 | 2022-10-11 | 成都盒电物联网科技有限公司 | Composite layer, unit and battery explosion-proof assembly for releasing gas |
-
2018
- 2018-06-20 CN CN201820949611.4U patent/CN208256775U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115172954A (en) * | 2022-07-21 | 2022-10-11 | 成都盒电物联网科技有限公司 | Composite layer, unit and battery explosion-proof assembly for releasing gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181218 Termination date: 20210620 |