CN107369796A - A kind of lithium ion battery anti-exploding valve - Google Patents
A kind of lithium ion battery anti-exploding valve Download PDFInfo
- Publication number
- CN107369796A CN107369796A CN201710756576.4A CN201710756576A CN107369796A CN 107369796 A CN107369796 A CN 107369796A CN 201710756576 A CN201710756576 A CN 201710756576A CN 107369796 A CN107369796 A CN 107369796A
- Authority
- CN
- China
- Prior art keywords
- detonating fuse
- burst disk
- explosion
- lithium ion
- ion 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
Links
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 42
- 239000000758 substrate Substances 0.000 claims abstract description 43
- 230000001788 irregular Effects 0.000 claims description 3
- 238000004880 explosion Methods 0.000 abstract description 14
- 238000005422 blasting Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 7
- 238000013022 venting Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- H01M50/342—Non-re-sealable arrangements
-
- 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
- H01M50/383—Flame arresting or ignition-preventing means
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The invention provides a kind of lithium ion battery anti-exploding valve, including explosion-proof substrate and burst disk, burst disk is in explosion-proof substrate, burst disk includes burst disk one and burst disk two, the edge one of burst disk one, the edge two of burst disk two are connected with explosion-proof substrate respectively, the inwall of explosion-proof substrate is provided with detonating fuse one and detonating fuse two, and spacing is left in the both ends of detonating fuse one with the both ends of detonating fuse two respectively, and detonating fuse three is provided between detonating fuse one and detonating fuse two.Above-mentioned lithium ion battery anti-exploding valve, due to provided with burst disk, detonating fuse one, detonating fuse two and detonating fuse three, when lithium ion battery internal pressure is excessive, detonating fuse one, detonating fuse two and detonating fuse three disconnect, it is in the outside explosion of fenestration to make burst disk one and burst disk two, stress needed for the blasting method is smaller, pressure release is faster, in addition, burst disk one and burst disk two respectively have a lateral edges to be connected with explosion-proof substrate, burst disk one and burst disk two fly out all without in blasting process, so as to which security performance is higher.
Description
Technical field
The present invention relates to explosion-proof valve field, more particularly to a kind of lithium ion battery anti-exploding valve.
Background technology
Due to the incorrect use to lithium ion battery, when battery is due to overshooting or occurring other failures, its internal meeting
Because chemically reacting a large amount of aerogenesis, cause inner pressure of battery to increase rapidly, explosion accident occurs.Therefore in order to prevent such dangerous hair
Raw, battery is generally provided with explosion-protection equipment.Referring to Fig. 1, currently used lithium ion battery anti-exploding valve 100 is including explosion-proof
Substrate 110 and four burst disks 120 being uniformly arranged in explosion-proof substrate 110, but currently used lithium ion battery is used and prevented
Quick-fried valve 100, explosion exhaust velocity are slower.
The content of the invention
Based on this, it is necessary to provide a kind of faster lithium ion battery anti-exploding valve of explosion pressure release.
A kind of lithium ion battery anti-exploding valve, including explosion-proof substrate and burst disk, the burst disk are located at the explosion-proof base
In piece, the burst disk includes burst disk one and burst disk two, edge one, the edge of the burst disk two of the burst disk one
Two are connected with the explosion-proof substrate respectively, and the inwall of the explosion-proof substrate is provided with detonating fuse one and detonating fuse two, the explosion
Spacing is left at the both ends of line one with the both ends of detonating fuse two respectively, and explosion is provided between the detonating fuse one and the detonating fuse two
Line three；
The two opposite sides edge of the burst disk one, the two opposite sides edge of the burst disk two all respectively with the explosion
Line one, the detonating fuse two connect, an edge of the burst disk one away from the edge one, the institute away from the edge two
One side edge for stating burst disk two is connected with the detonating fuse three respectively.
Above-mentioned technical proposal, due to provided with burst disk, detonating fuse one, detonating fuse two and detonating fuse three, working as lithium ion battery
When internal pressure is excessive, detonating fuse one, detonating fuse two and detonating fuse three disconnect, and make burst disk one and burst disk two outwards quick-fried in fenestration
Broken, stress needed for this blasting method is smaller, pressure release faster, in addition, burst disk one and burst disk two respectively have a lateral edges with it is anti-
Quick-fried substrate connection, burst disk will not fly out in blasting process, so as to which security performance is higher.
In one of the embodiments, the detonating fuse three is located in the central transverse axis of the explosion-proof substrate, and institute
State middle part of the both ends of detonating fuse three respectively with the detonating fuse one, the detonating fuse two to be connected, the burst disk one and described
Burst disk two is with the detonating fuse three for axle setting symmetrical above and below.
In one of the embodiments, the explosion-proof substrate is loop configuration, and the burst disk is and the explosion-proof substrate
The arcuate structure of matching.
In one of the embodiments, the thickness of the explosion-proof substrate is more than the thickness of the burst disk.
In one of the embodiments, the detonating fuse one, the detonating fuse two and the detonating fuse three are all fluted body
Structure, the thickness of the detonating fuse one, the detonating fuse two and the detonating fuse three are both less than the thickness of the burst disk.
In one of the embodiments, the detonating fuse one and the detonating fuse two are all in semicircular arc, c-type arc, U-shaped
Arc or irregular shape.
In one of the embodiments, the thickness of the explosion-proof substrate is 0.4~0.6mm；The thickness of the burst disk is
0.2~0.3mm, the thickness of the detonating fuse one, the detonating fuse two and the detonating fuse three is all 0.05~0.1mm.
In one of the embodiments, the explosion-proof substrate, the burst disk, the detonating fuse one, the detonating fuse two
And the detonating fuse three is formed in one structure.
Beneficial effect：Above-mentioned lithium ion battery anti-exploding valve, due to provided with burst disk, detonating fuse one, detonating fuse two and quick-fried
Broken line three, when lithium ion battery internal pressure is excessive, detonating fuse one, detonating fuse two and detonating fuse three disconnect, and make burst disk one and prevent
Quick-fried two is in the outside explosion of fenestration, and stress needed for this blasting method is smaller, pressure release faster, in addition, burst disk one and explosion-proof
Piece two respectively has a lateral edges to be connected with explosion-proof substrate, and burst disk one and burst disk two fly out all without in blasting process, so as to
Security performance is higher.
Brief description of the drawings
Fig. 1 is the structural representation of lithium ion battery anti-exploding valve of the prior art；
Fig. 2 is the structural representation of the lithium ion battery anti-exploding valve of embodiment 1；
Fig. 3 is Fig. 2 A-A positions sectional view；
Fig. 4 is Fig. 3 partial enlarged drawing
Fig. 5 is the structural representation of the lithium ion battery anti-exploding valve of embodiment 2.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Embodiment 1
Fig. 2~4, a kind of lithium ion battery anti-exploding valve, including explosion-proof substrate 1 and burst disk 2 are referred to, burst disk 2 is set
In in explosion-proof substrate 1, burst disk 2 includes burst disk 1 and burst disk 2 22, the edge 1 of burst disk 1, burst disk
2 22 edge 2 221 is connected with explosion-proof substrate 1 respectively, and the inwall of explosion-proof substrate 1 is provided with detonating fuse 1 and detonating fuse 24,
Spacing is left in the both ends of detonating fuse 1 with the both ends of detonating fuse 24 respectively, and detonating fuse three is provided between detonating fuse 1 and detonating fuse 24
5；The two opposite sides edge of burst disk 1, the two opposite sides edge of burst disk 2 22 all respectively with detonating fuse 1, detonating fuse two
4 connections, an edge of the burst disk 1 at remote edge 1, one side edge difference of the burst disk 2 22 away from edge 2 221
It is connected with detonating fuse 35.
Wherein, detonating fuse 35 is located in the central transverse axis of explosion-proof substrate 1, and the both ends of detonating fuse 35 respectively with it is quick-fried
The middle part connection of broken line 1, detonating fuse 24, burst disk 1 and burst disk 2 22 are set with detonating fuse 35 for axle is symmetrical above and below
Put.In the present embodiment, explosion-proof substrate 1, burst disk 2, detonating fuse 1, detonating fuse 24 and detonating fuse 35 are formed in one structure.
Explosion-proof substrate 1 is loop configuration, and burst disk 2 is the arcuate structure matched with explosion-proof substrate 1.Burst disk 1 and burst disk 2 22
Half arcuate structure matched respectively with explosion-proof substrate 1.
Preferably, the thickness of explosion-proof substrate 1 is more than the thickness of burst disk 2, detonating fuse 1, detonating fuse 24 and detonating fuse three
5 thickness is both less than the thickness of burst disk 2.Preferably, detonating fuse 1, detonating fuse 24 and detonating fuse 35 are all fluted body knot
Structure.Wherein, the thickness of explosion-proof substrate 1 is 0.4~0.6mm.The thickness of burst disk 2 is 0.2~0.3mm, burst disk 1 and anti-
The thickness of quick-fried 22 is identical.The thickness of detonating fuse 1, detonating fuse 24 and detonating fuse 35 is all 0.05~0.1mm.The present embodiment
In, the thickness of explosion-proof substrate 1 is 0.5mm.The thickness of burst disk 2 is 0.3mm, detonating fuse 1, detonating fuse 24 and detonating fuse 35
Thickness be all 0.08mm.Detonating fuse 1 and detonating fuse 24 are set by axial symmetry of the longitudinal centre line of explosion-proof substrate 1, explosion
Line 1 and detonating fuse 24 are all in semicircular arc, c-type arc, U-shaped arc or irregular shape.In the present embodiment, detonating fuse 1
And detonating fuse 24 is in semicircular arc.
The course of work of above-mentioned lithium ion battery anti-exploding valve is：The periphery top of explosion-proof substrate 1 is welded on lithium ion
On the venting of battery, when lithium ion battery internal pressure is excessive, detonating fuse 1, detonating fuse 24 and detonating fuse 35 disconnect, explosion-proof
Piece 1 and burst disk 2 22 are in fenestration explosion, and stress needed for this blasting method is smaller, and faster, security performance is more for pressure release
It is high.
Embodiment 2
Referring to Fig. 5, the present embodiment and the distinctive points of embodiment 1 are detonating fuse 1, detonating fuse 24 in shape, this
In embodiment, detonating fuse 1,24 C-shaped arcuate structure of detonating fuse.
Embodiment 3
The present embodiment and the distinctive points of embodiment 1 are：The thickness of explosion-proof substrate 1 is 0.5mm.The thickness of burst disk 2 is
0.2mm, the thickness of detonating fuse 1, detonating fuse 24 and detonating fuse 35 is all 0.06mm.
Comparative example 1
Explosion-proof valve in this comparative example is the conventional lithium ion battery anti-exploding valve 100 mentioned in background technology, structure
As shown in Figure 1.
Performance test
The lithium ion battery anti-exploding valve of embodiment 1~3 and comparative example 1 is arranged on lithium ion battery, tested in lithium
When ion battery is with explosion-proof valve explosion, the venting duration of lithium ion battery internal pressure and lithium ion battery anti-exploding valve, test result
As shown in table 1.
The inner pressure of battery of the lithium ion battery anti-exploding valve of table 1 and venting duration contrast table
As shown in Table 1, the lithium ion battery anti-exploding valve of embodiment 1~3 smaller lithium ion battery internal pressure (0.74~
When 0.75MPa), i.e., explosion can occur, and venting duration is all shorter, is 4.5~4.8s；And the lithium ion battery of comparative example 1 is used
Explosion-proof valve just understands explosion under larger lithium ion battery internal pressure (0.75~0.878MPa), and venting duration is longer, be 4.97~
5.2s, illustrate the lithium ion battery anti-exploding valve of the present invention, explosion can occur under smaller lithium ion battery internal pressure conditions, and
Pressure release speed, to prevent lithium ion battery internal pressure is excessive from potential safety hazard be present, security performance is higher.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (8)
1. a kind of lithium ion battery anti-exploding valve, it is characterised in that including explosion-proof substrate (1) and burst disk (2), the burst disk
(2) in the explosion-proof substrate (1), the burst disk (2) includes burst disk one (21) and burst disk two (22), described explosion-proof
The edge one (211) of piece one (21), the edge two (221) of the burst disk two (22) respectively with explosion-proof substrate (1) inwall
Connection, the inwall of the explosion-proof substrate (1) are provided with detonating fuse one (3) and detonating fuse two (4), described (3) both ends of detonating fuse one
Spacing is left with described (4) both ends of detonating fuse two respectively, is provided between the detonating fuse one (3) and the detonating fuse two (4) quick-fried
Broken line three (5)；
The two opposite sides edge of the burst disk one (21), the two opposite sides edge of the burst disk two (22) all respectively with it is described
Detonating fuse one (3), the detonating fuse two (4) connection, one side of the burst disk one (21) away from the edge one (211)
Edge, one side edge of the burst disk two (22) away from the edge two (221) are connected with the detonating fuse three (5) respectively.
A kind of 2. lithium ion battery anti-exploding valve according to claim 1, it is characterised in that described (5) position of detonating fuse three
In in the central transverse axis of the explosion-proof substrate (1), and the both ends of the detonating fuse three (5) respectively with the detonating fuse one
(3), the middle part connection of the detonating fuse two (4), the burst disk one (21) and the burst disk two (22) are with the detonating fuse
Three (5) are axle setting symmetrical above and below.
3. a kind of lithium ion battery anti-exploding valve according to claim 1, it is characterised in that the explosion-proof substrate (1) is
Loop configuration, the burst disk (2) are the arcuate structure matched with the explosion-proof substrate (1).
4. a kind of lithium ion battery anti-exploding valve according to claim 1, it is characterised in that the explosion-proof substrate (1)
Thickness is more than the thickness of the burst disk (2).
5. a kind of lithium ion battery anti-exploding valve according to claim 4, it is characterised in that the detonating fuse one (3), institute
It is all fluted body structure to state detonating fuse two (4) and the detonating fuse three (5), the detonating fuse one (3), the detonating fuse two (4)
And the thickness of the detonating fuse three (5) is both less than the thickness of the burst disk (2).
6. a kind of lithium ion battery anti-exploding valve according to claim 5, it is characterised in that the explosion-proof substrate (1)
Thickness is 0.4~0.6mm；The thickness of the burst disk (2) is 0.2~0.3mm, the detonating fuse one (3), the detonating fuse two
(4) and the thickness of the detonating fuse three (5) is all 0.05~0.1mm.
A kind of 7. lithium ion battery anti-exploding valve according to claim 1, it is characterised in that the detonating fuse one (3) and
The detonating fuse two (4) is all in semicircular arc, c-type arc, U-shaped arc or irregular shape.
8. a kind of lithium ion battery anti-exploding valve according to claim 1~7 any one, it is characterised in that described anti-
Quick-fried substrate (1), the burst disk (2), the detonating fuse one (3), the detonating fuse two (4) and the detonating fuse three (5) are one
Forming structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710756576.4A CN107369796A (en) | 2017-08-29 | 2017-08-29 | A kind of lithium ion battery anti-exploding valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710756576.4A CN107369796A (en) | 2017-08-29 | 2017-08-29 | A kind of lithium ion battery anti-exploding valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107369796A true CN107369796A (en) | 2017-11-21 |
Family
ID=60312322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710756576.4A Pending CN107369796A (en) | 2017-08-29 | 2017-08-29 | A kind of lithium ion battery anti-exploding valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107369796A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111162229A (en) * | 2020-02-03 | 2020-05-15 | 力神动力电池系统有限公司 | Relief valve safety device of lithium ion power battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002025525A (en) * | 2000-07-07 | 2002-01-25 | Fdk Corp | Explosion-proof structure of prismatic battery |
| JP2002093669A (en) * | 2000-09-13 | 2002-03-29 | Rubycon Corp | Explosion-proof capacitor case |
| CN102306723A (en) * | 2011-09-29 | 2012-01-04 | 深圳市科达利实业股份有限公司 | Lithium ion power battery safety valve |
| CN102709503A (en) * | 2012-06-18 | 2012-10-03 | 深圳市源科昱科技有限公司 | Anti-explosion valve of power battery and manufacturing method for anti-explosion valve |
| CN202487681U (en) * | 2012-03-21 | 2012-10-10 | 巩章勇 | Explosion protection structure of lithium battery |
| CN205810927U (en) * | 2016-07-13 | 2016-12-14 | 浙江中泽电气有限公司 | A kind of explosion-proof device of power battery |
| CN205863272U (en) * | 2016-08-05 | 2017-01-04 | 苏州创能新能源实业有限公司 | A kind of lithium ion battery explosion-proof valve |
| CN207183382U (en) * | 2017-08-29 | 2018-04-03 | 力信（江苏）能源科技有限责任公司 | A kind of lithium ion battery anti-exploding valve |
-
2017
- 2017-08-29 CN CN201710756576.4A patent/CN107369796A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002025525A (en) * | 2000-07-07 | 2002-01-25 | Fdk Corp | Explosion-proof structure of prismatic battery |
| JP2002093669A (en) * | 2000-09-13 | 2002-03-29 | Rubycon Corp | Explosion-proof capacitor case |
| CN102306723A (en) * | 2011-09-29 | 2012-01-04 | 深圳市科达利实业股份有限公司 | Lithium ion power battery safety valve |
| CN202487681U (en) * | 2012-03-21 | 2012-10-10 | 巩章勇 | Explosion protection structure of lithium battery |
| CN102709503A (en) * | 2012-06-18 | 2012-10-03 | 深圳市源科昱科技有限公司 | Anti-explosion valve of power battery and manufacturing method for anti-explosion valve |
| CN205810927U (en) * | 2016-07-13 | 2016-12-14 | 浙江中泽电气有限公司 | A kind of explosion-proof device of power battery |
| CN205863272U (en) * | 2016-08-05 | 2017-01-04 | 苏州创能新能源实业有限公司 | A kind of lithium ion battery explosion-proof valve |
| CN207183382U (en) * | 2017-08-29 | 2018-04-03 | 力信（江苏）能源科技有限责任公司 | A kind of lithium ion battery anti-exploding valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111162229A (en) * | 2020-02-03 | 2020-05-15 | 力神动力电池系统有限公司 | Relief valve safety device of lithium ion power battery |
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Application publication date: 20171121 |
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