CN205863272U - A kind of lithium ion battery explosion-proof valve - Google Patents
A kind of lithium ion battery explosion-proof valve Download PDFInfo
- Publication number
- CN205863272U CN205863272U CN201620868025.8U CN201620868025U CN205863272U CN 205863272 U CN205863272 U CN 205863272U CN 201620868025 U CN201620868025 U CN 201620868025U CN 205863272 U CN205863272 U CN 205863272U
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- CN
- China
- Prior art keywords
- burst disk
- ring segment
- connecting portion
- thickness
- proof valve
- 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.)
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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
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- Gas Exhaust Devices For Batteries (AREA)
Abstract
This utility model relates to a kind of lithium ion battery explosion-proof valve, it includes circular arc burst disk, be sheathed on that described burst disk is outer and the ring segment of concentric setting and be integrally formed at the connecting portion between described ring segment and described burst disk, the edge of described burst disk is in the surface of described ring segment, the thickness of the described connecting portion thickness less than described burst disk and the thickness less than described ring segment.By burst disk being arranged to circular arc and making it be connected with ring segment one, and the thickness of the connecting portion thickness less than burst disk and the thickness less than ring segment, the intrados of issuable gas effect and burst disk and connecting portion is disconnected after reaching certain pressure in so making lithium battery, play explosion-proof effect, simple in construction, low cost.
Description
Technical field
This utility model belongs to field of lithium, relates to a kind of explosion-proof valve, is specifically related to a kind of lithium ion battery explosion-proof valve.
Background technology
Lithium battery has the advantages such as voltage height, life-span length, energy density are high, light, and its application is also constantly expanding,
But its safety is poorer than other secondary cells, when dynamic lithium battery overcharges, the material such as its electrolyte inside can crack product
Angry body so that battery case blow-up ruptures, and allows oxygen enter with the lithium ion being deposited in negative terminal surface and reacts, and then occurs quick-fried
Fried.Existing lithium battery generally include cover board body, positive electrode seat, negative pole seat, the first Positive Poles, the second Positive Poles, first
Negative pole pole, the second negative pole pole, positive strap, negative straps and explosion-proof valve etc.；Explosion-proof valve is lithium electricity as can be seen here
The important composition parts in pond.Existing explosion-proof valve has usual structure complicated, as included valve body, valve gap, spring and encapsulating chip etc.
Parts, cause lithium battery to pull you the highest.
Summary of the invention
This utility model purpose is to provide a kind of lithium ion battery explosion-proof valve to overcome the deficiencies in the prior art.
For reaching above-mentioned purpose, the technical solution adopted in the utility model is: a kind of lithium ion battery explosion-proof valve, it includes
Circular arc burst disk, it is sheathed on that described burst disk is outer and the ring segment of concentric setting and be integrally formed at described ring segment
And the connecting portion between described burst disk, the edge of described burst disk is in the surface at described ring segment place, described connection
The thickness in the portion thickness less than described burst disk and the thickness less than described ring segment.
Optimally, defining the described burst disk side adjacent with described connecting portion is the first side, described ring segment and institute
Stating the adjacent side of connecting portion is the second side, and the angle between described first side and described second side is 40～70 °.
Further, described ring segment includes body and is formed at the aperture portion in the middle part of described body, described perforate
The thickness in portion is more than the thickness of described body；Described burst disk is arranged in described aperture portion.
Owing to technique scheme is used, this utility model compared with prior art has the advantage that this utility model
Lithium ion battery explosion-proof valve, by burst disk being arranged to circular arc and making it be connected with ring segment one, and connecting portion
The thickness thickness less than burst disk and the thickness less than ring segment, in so making lithium battery, issuable gas effect is with anti-
The intrados of quick-fried and connecting portion is disconnected after reaching certain pressure, plays explosion-proof effect, simple in construction, low cost.
Accompanying drawing explanation
Accompanying drawing 1 is the front view of this utility model lithium ion battery explosion-proof valve；
Accompanying drawing 2 is the A-A sectional view of accompanying drawing 1；
Wherein, 1, ring segment；11, body；12, aperture portion；111, the second side；2, burst disk；21, the first side；3、
Connecting portion.
Detailed description of the invention
This utility model is further described by the embodiment shown in below in conjunction with the accompanying drawings.
Lithium ion battery explosion-proof valve as depicted in figs. 1 and 2, mainly includes ring segment 1, burst disk 2 and connecting portion 3.
Wherein, burst disk 2 is in the arc-shaped, and radian then selects according to the parameter of explosion-proof valve design.Ring segment 1 is set in
Outside burst disk 2, it is arranged concentrically with burst disk 2, and the edge of burst disk 2 is in the surface at ring segment 1 place.Connecting portion
3 are integrally disposed upon between ring segment 1 and burst disk 2, i.e. the coplanar of ring segment 1 and burst disk 2 caves in and forms connecting portion 3 so that
The thickness of connecting portion 3 is less than the thickness of burst disk 2, again smaller than the thickness of ring segment 1.
In the present embodiment, definition burst disk 2 side adjacent with connecting portion 3 (i.e. burst disk 2 cave in the side of formation)
Being the first side 21, side that ring segment 1 is adjacent with connecting portion 3 (i.e. ring segment 1 cave in the side formed) is the second side
111, then the angle α between the first side 21 and the second side 111, its number of degrees are 40～70 °, preferably 63 °.And ring segment 1
Including body 11 and be formed at the aperture portion 12 in the middle part of body 11, the thickness of aperture portion 12 is more than the thickness of body 11；Anti-
Quick-fried 2 and connecting portion 3 are integrally disposed upon in aperture portion 12.
Above-described embodiment only for technology of the present utility model design and feature are described, its object is to allow and is familiar with technique
Personage will appreciate that content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this.
All according to this utility model spirit made equivalence change or modify, all should contain protection domain of the present utility model it
In.
Claims (3)
1. a lithium ion battery explosion-proof valve, it is characterised in that: it includes circular arc burst disk (2), is sheathed on described burst disk
(2) outward and the ring segment (1) of concentric setting and being integrally formed between described ring segment (1) and described burst disk (2)
Connecting portion (3), the edge of described burst disk (2) is in the surface at described ring segment (1) place, described connecting portion (3)
The thickness thickness less than described burst disk (2) and the thickness less than described ring segment (1).
Lithium ion battery explosion-proof valve the most according to claim 1, it is characterised in that: define described burst disk (2) with described
The side that connecting portion (3) is adjacent is the first side (21), and the side that described ring segment (1) is adjacent with described connecting portion (3) is
Two side faces (111), the angle between described first side (21) and described second side (111) is 40～70 °.
Lithium ion battery explosion-proof valve the most according to claim 1 and 2, it is characterised in that: described ring segment (1) includes body
(11) and be formed at described body (11) middle part aperture portion (12), the thickness of described aperture portion (12) be more than described body
(11) thickness；Described burst disk (2) is arranged in described aperture portion (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620868025.8U CN205863272U (en) | 2016-08-05 | 2016-08-05 | A kind of lithium ion battery explosion-proof valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620868025.8U CN205863272U (en) | 2016-08-05 | 2016-08-05 | A kind of lithium ion battery explosion-proof valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205863272U true CN205863272U (en) | 2017-01-04 |
Family
ID=57593498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620868025.8U Active CN205863272U (en) | 2016-08-05 | 2016-08-05 | A kind of lithium ion battery explosion-proof valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205863272U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369796A (en) * | 2017-08-29 | 2017-11-21 | 力信（江苏）能源科技有限责任公司 | A kind of lithium ion battery anti-exploding valve |
| WO2022152042A1 (en) * | 2021-01-15 | 2022-07-21 | 蜂巢能源科技股份有限公司 | Explosion-proof valve for battery cell, battery cell, and battery module |
-
2016
- 2016-08-05 CN CN201620868025.8U patent/CN205863272U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369796A (en) * | 2017-08-29 | 2017-11-21 | 力信（江苏）能源科技有限责任公司 | A kind of lithium ion battery anti-exploding valve |
| WO2022152042A1 (en) * | 2021-01-15 | 2022-07-21 | 蜂巢能源科技股份有限公司 | Explosion-proof valve for battery cell, battery cell, and battery module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |