CN110061173A - A kind of explosion-proof valve block and preparation method thereof, the battery comprising this explosion-proof valve block - Google Patents
A kind of explosion-proof valve block and preparation method thereof, the battery comprising this explosion-proof valve block Download PDFInfo
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- CN110061173A CN110061173A CN201910425094.XA CN201910425094A CN110061173A CN 110061173 A CN110061173 A CN 110061173A CN 201910425094 A CN201910425094 A CN 201910425094A CN 110061173 A CN110061173 A CN 110061173A
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- Prior art keywords
- valve block
- convex closure
- explosion
- auxiliary line
- detonating fuse
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- 238000002360 preparation method Methods 0.000 title abstract description 4
- 238000004080 punching Methods 0.000 claims description 30
- 238000004880 explosion Methods 0.000 claims description 26
- 238000002788 crimping Methods 0.000 claims description 24
- 238000000465 moulding Methods 0.000 claims description 8
- 238000004513 sizing Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 230000004992 fission Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims 2
- 238000009740 moulding (composite fabrication) Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005422 blasting Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000001360 synchronised effect Effects 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
- H01M50/342—Non-re-sealable arrangements
- H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The present invention discloses a kind of explosion-proof valve block and preparation method thereof, the battery comprising this explosion-proof valve block, wherein, explosion-proof valve block includes valve block ontology, detonating fuse, auxiliary line and convex closure structure are provided on valve block ontology, detonating fuse and auxiliary line interval are arranged, auxiliary line is formed by outside batteries towards inside battery is recessed, convex closure structure includes spaced first convex closure and the second convex closure, auxiliary line is between the first convex closure and the second convex closure, second convex closure is arranged between detonating fuse and auxiliary line, and the first convex closure and the second convex closure are arranged with detonating fuse and auxiliary line interval.This kind of explosion-proof valve block is conducive to the security performance for improving battery in the position consistency of thickness of detonating fuse.
Description
Technical field
The present invention relates to battery technology field more particularly to a kind of explosion-proof valve block, and preparation method thereof, and it is anti-comprising this
The battery of quick-fried valve block.
Background technique
Safety is that important one of the technical indicator of power battery generallys use anti-to guarantee the safety of power battery
Quick-fried valve realizes pressure release.Usually explosion-proof valve is arranged on top cover or shell, detonating fuse is set on explosion-proof valve, works as battery
When being more than safety value because of the air pressure of the abnormal inside battery caused by, the air pressure of inside battery can break through explosion-proof in explosion line position
Piece, to discharge inside battery air pressure in time, to avoid inside battery atmospheric pressure value excessive and lead to battery explosion.In the prior art
Explosion-proof valve detonating fuse uneven thickness, cannot each position on detonating fuse when the air pressure of inside battery is more than safety value
It breaks through in time, it is low so as to cause the security performance of battery.In addition, the structure of the explosion-proof valve of the prior art is more single, it is not able to satisfy
Use demand.
Summary of the invention
It is an object of the present invention to: the production method of a kind of explosion-proof valve block and this kind of explosion-proof valve block is provided, this kind is anti-
Quick-fried valve block is uniform in the position thickness of detonating fuse, is conducive to the security performance for improving battery.
It is another object of the present invention to: a kind of battery is provided, security performance is high.
To reach this purpose, the invention adopts the following technical scheme:
A kind of explosion-proof valve block, including valve block ontology are provided, detonating fuse, auxiliary line and convex are provided on the valve block ontology
Pack arrangement, the detonating fuse and the auxiliary line interval are arranged, and the auxiliary line is recessed towards the inside battery by outside batteries
If forming, the convex closure structure includes spaced first convex closure and the second convex closure, and it is convex that the auxiliary line is located at described first
Between packet and second convex closure, second convex closure is arranged between the detonating fuse and the auxiliary line, and described first is convex
Packet and second convex closure are arranged with the detonating fuse and the auxiliary line interval.
As a preferred technical solution of the explosion-proof valve block, the shape knot of the auxiliary line and the detonating fuse
Structure matches, and the spacing between the auxiliary line and the detonating fuse is equal.
As a preferred technical solution of the explosion-proof valve block, the detonating fuse and the auxiliary line enclose set respectively
It is formed with auxiliary line described in closed area and the detonating fuse is set encloses and set the inside to form closed area, or, the auxiliary
Line, which is arranged in the detonating fuse and encloses, sets the outside to form sealing area.
As a preferred technical solution of the explosion-proof valve block, the groove width of the auxiliary line is greater than the detonating fuse
Groove width.
As a preferred technical solution of the explosion-proof valve block, first convex closure and second convex closure by
Inside battery is towards the outside batteries projection.
As a preferred technical solution of the explosion-proof valve block, first convex closure has back to the first of setting
Concave surface and the first convex surface, second convex closure have back to the second concave surface and the second convex surface of setting, first concave surface and institute
It states the second concave surface and is respectively positioned on the inside battery, first convex surface and second convex surface are respectively positioned on the outside batteries.
As a preferred technical solution of the explosion-proof valve block, the valve block ontology includes the first setting unit and the
Two setting units, first setting unit and second setting unit are in planar structure, and the first setting unit is arranged in the detonating fuse
On, first setting unit have back to setting the first medial surface and the first lateral surface, second setting unit have back to
The second medial surface and the second lateral surface being arranged, first medial surface and second medial surface are respectively positioned on the valve block ontology
Towards the side of the inside battery, first lateral surface and second lateral surface are respectively positioned on the battery body close to institute
The side of outside batteries is stated, there is the first difference in height, outside described first between first medial surface and second medial surface
There is the second difference in height between side and second lateral surface.
As a preferred technical solution of the explosion-proof valve block, first convex closure is integrally formed setting；Or, institute
State the molding setting of the first convex closure fission；Or, second convex closure is integrally formed setting；Or, the second convex closure fission molding is set
It sets.
The present invention also provides a kind of production methods of explosion-proof valve block, for making above-mentioned explosion-proof valve block, including following step
It is rapid:
Step S10, valve block ontology and the mold for valve block ontology described in punching press are provided；
Step S20, by the mold in the valve block ontology towards the first convex closure of side punching press of outside batteries and
The thick crimping molding of auxiliary line and explosion on two convex closures, then punching press valve block ontology；
Step S30, pressure-sizing is carried out to the thick crimping of the explosion, detonating fuse will be become from the thick crimping of the explosion.
The present invention provides a kind of battery again, including above-mentioned explosion-proof valve block.
The invention has the benefit that auxiliary line is arranged on valve block ontology, the auxiliary line is by outside batteries towards institute
State that inside battery is recessed to be formed, in specific punching course, the stress of part valve block ontology is can be dispersed in the groove of auxiliary line, is kept away
Exempt from each position of punching course borehole blasting line due to unbalance stress, and causes detonating fuse in the valve block ontology corresponding position
There is uneven phenomenon in surface, by making each position thickness of final stamping forming detonating fuse uniform, improves
The safety of battery.
Detailed description of the invention
The present invention will be further described in detail below based on the drawings and embodiments.
Fig. 1 is the top view of explosion-proof valve block described in embodiment.
Fig. 2 is the sectional view of explosion-proof valve block described in embodiment.
In figure:
1, valve block ontology；11, auxiliary line；12, detonating fuse；13, the first convex closure；131, the first convex surface；132, the first concave surface；
14, the second convex closure；141, the second convex surface；142, the second concave surface.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
As shown in Fig. 1~2, in this present embodiment, explosion-proof valve block of the present invention, including valve block ontology 1, the valve block
Detonating fuse 12, auxiliary line 11 and convex closure structure are provided on ontology 1, the detonating fuse 12 and the auxiliary line 11 are recess
Structure and the two interval are arranged, and the auxiliary line 11 is formed by outside batteries towards the inside battery is recessed, the convex closure knot
Structure includes spaced first convex closure 13 and the second convex closure 14, and the auxiliary line 11 is located at first convex closure 13 and described
Between two convex closures 14, second convex closure 14 is arranged between the detonating fuse 12 and the auxiliary line 11, first convex closure
13 and second convex closure 14 with the detonating fuse 12 and the auxiliary line 11 interval be arranged.
Specifically, detonating fuse 12 is by the outside batteries towards the recessed formation of the inside battery.In the present embodiment, in valve
Auxiliary line 11 is set on piece ontology 1, and the auxiliary line 11 is formed by outside batteries towards the inside battery is recessed, specific
In punching course, the stress of part valve block ontology 1 is can be dispersed in the groove of auxiliary line 11, is avoided each in punching course borehole blasting line 12
A position is due to unbalance stress, and it is rough to cause detonating fuse 12 to occur on the surface of 1 corresponding position of valve block ontology
Phenomenon uniformly can guarantee detonating fuse 12 in the corresponding thickness of valve block ontology 1 in each position of detonating fuse 12 by above-mentioned design
The probability broken through at various locations by inside battery air pressure is identical, to improve the consistency that the detonating fuse 12 is opened.In addition,
In the present embodiment, the setting of the first convex closure 13 and the second convex closure 14, on the one hand, during punching press, pass through the first convex closure
13 and second convex closure 14 can increase the contact area between valve block ontology 1 and mold, be conducive to valve block ontology 1 position and mention
High punching press effect；On the other hand, the structure for stablizing valve block ontology 1 by the first convex closure 13 and the second convex closure 14, reduces valve block sheet
Body 1 a possibility that deformation occurs in punching course.
As a kind of perferred technical scheme, the shape and structure of the auxiliary line 11 and the detonating fuse 12 matches, example
Such as, auxiliary line 11 is in track elements, and detonating fuse 12 is also in track elements；11 ring structure of auxiliary line, detonating fuse 12 is also in a ring
Structure；Auxiliary line 11 is in rectangular configuration, the also structure in a ring of detonating fuse 12, the structure triangular in shape of auxiliary line 11, detonating fuse 12
Structure triangular in shape.This design, so that 12 everywhere position of detonating fuse is corresponding with auxiliary line 11, guarantees in detonating fuse 12 every
Position can be conducive to the thickness for keeping the detonating fuse 12 in 1 corresponding position of valve block ontology by 11 dispersive stress of auxiliary line at one
Degree is uniform.
Wherein, the detonating fuse 12 and the auxiliary line 11, which enclose to set respectively, is formed with closed area, and the auxiliary line 11 can
It is enclosed so that the detonating fuse 12 is arranged in and sets the inside to form closed area, the auxiliary line 11 can also be arranged described quick-fried
Broken line 12, which encloses, sets the outside to form sealing area.
In the present embodiment, the planform of detonating fuse 12 and auxiliary line 11 is that (i.e. auxiliary line 11 is enclosed sets track elements
It is in track elements that the sealing area and detonating fuse 12 of formation, which enclose the sealing area for setting and being formed), by by detonating fuse 12 and auxiliary
The shape and structure of line 11 is the radian smooth change that track elements make detonating fuse 12 Yu auxiliary line 11, is avoided in detonating fuse 12
There are corner angle in auxiliary line 11, advantageously ensures that the consistency that each position of the detonating fuse 12 is opened.Implement in others
Example in, the planform of the detonating fuse 12 or auxiliary line 11 can also be set to ellipse, circle, triangle, rectangle or
Person's others planform, or the auxiliary line 11 or detonating fuse 12 can also be set to linear structure (such as curve or
Person's straight line), it will enclose to set on valve block ontology 1 to form non-close region by the linear structure, herein not to the detonating fuse
12 and the planform of auxiliary line 11 be limited.
As a preferred solution, the groove width of the auxiliary line 11 is greater than the groove width of the detonating fuse 12, auxiliary to guarantee
The groove of index contour 11 has the stress of corresponding position of enough spatial dispersion detonating fuses 12 in valve block ontology 1.Other real
It applies in example, the groove width that the auxiliary line 11 can be set is equal to or less than the groove width of the detonating fuse 12.
In one embodiment, first convex closure 13 has the first concave surface 132 and the first convex surface 131, second convex closure 14
With the second concave surface 142 and the second convex surface 141, first concave surface 132 and second concave surface 142 are respectively positioned in the battery
Portion, first convex surface 131 and second convex surface 141 are respectively positioned on the outside batteries, so that in valve block ontology 1 close to described
The side of inside battery is respectively formed the first groove and the second groove, and the convex surface of convex closure structure is arranged at outside batteries and is not take up
The space of inside battery is conducive to the capacity for improving the battery.
In the present embodiment, the valve block ontology 1 include the first setting unit and the second setting unit, first setting unit and
Second setting unit is planar structure, and the detonating fuse 12 is arranged in first setting unit, the first setting unit tool
There are the first medial surface and the first lateral surface, second setting unit has the second medial surface and the second lateral surface, in described first
Side and second medial surface are respectively positioned on the valve block ontology 1 towards the side of the inside battery, first lateral surface
The valve block ontology 1 is respectively positioned on towards the side of the outside batteries, first medial surface and institute with second lateral surface
Stating has the first height difference H 1 between the second medial surface, high with second between first lateral surface and second lateral surface
Spend difference H2.First height difference H 1 is set between the first medial surface and the second medial surface, and outside the first lateral surface and second
Side be arranged the second height difference H 2 so that the first setting unit and second setting be located at different planes on, detonating fuse 12 with it is auxiliary
During the second convex closure of position punching press 14 between index contour 11, using first height difference H 1 and second difference in height
A possibility that H2 disperses the part stress of valve block ontology 1, reduces the first setting unit and the second setting unit deformation occurs.
Preferably, the thickness of the first setting unit and the thickness of the second setting unit are equal, and first height difference H 1 and institute
It is equal to state the second height difference H 2.Preferably, first height difference H 1 and second height difference H 2 are 0.5mm.By first
The thickness of setting unit and the setting of the thickness of the second setting unit are equal, convenient for placing mold, facilitate punching press.
In the present embodiment, the medium position of the valve block ontology 1 is arranged in first convex closure 13.
In one embodiment, first convex closure 13 is integrally formed setting；Second convex closure 14 is integrally formed setting.
In another embodiment, the seperated molding setting of first convex closure 13, specifically, first convex closure 13 includes multiple
First seperated convex closure, each first convex closure 13 is seperated to be spaced apart to form the first convex closure 13 on the valve block ontology 1.
In another embodiment, the seperated molding setting of second convex closure 14, specifically, second convex closure 14 includes multiple
Second seperated convex closure, each described second seperated convex closure are spaced apart to form the second convex closure 14 on the valve block ontology 1.
The present embodiment also provides a kind of production method of explosion-proof valve block, prevents described in any of the above-described kind of embodiment for making
Quick-fried valve block, comprising the following steps: step S10, valve block ontology 1 and the mold for valve block ontology 1 described in punching press are provided.At this
In embodiment, mold includes at least three, three molds be respectively used to punching press convex closure structure, the thick crimping of explosion is carried out thick pressure with
And pressure-sizing is carried out to detonating fuse 12.
Step S20, the described mold in the outside of the valve block ontology 1 towards valve block ontology 1 described in the punching press of inside, described
The first convex closure 13 and the second convex closure 14 are formed on valve block ontology 1；
Step S30, valve block ontology described in the described mould punching forms auxiliary line 11 in the lateral surface of the valve block ontology 1
With the thick crimping of explosion；
In the present embodiment, by the same mold in synchronous punching press the first convex closure 13 of valve block ontology 1 and the second convex closure 14
Molding can save the usage amount of mold and improve the efficiency of explosion-proof valve block punching press.It in other examples, can be convex by first
Packet 13 and the second convex closure 14 pass through two molds difference punch formings.In the present embodiment, it is first stamped and formed out on valve block ontology 1
Convex closure structure (the first convex closure 13 and the second convex closure 14) stablizes the structure of valve block ontology 1 by convex closure structure, reduces quick-fried in punching press
When broken line 12 and auxiliary line 11 a possibility that valve block ontology 1, do homework for subsequent punching press detonating fuse 12 and auxiliary line 11.This
Outside, during punching press auxiliary line 11 and detonating fuse 12, the contact between mold and valve block ontology 1 is increased by convex closure structure
Area is conducive to the positioning to mold, is convenient for punching press.
Step S40, pressure-sizing is carried out to the thick crimping of the explosion, detonating fuse 12 will be become from the thick crimping of the explosion.
Auxiliary line 11 and the thick crimping of explosion are formed by being slightly pressed on valve block ontology 1 on valve block ontology 1, in pressure-sizing explosion
During thick crimping forms detonating fuse 12, by the thick crimping of grooves disperse explosion of auxiliary line 11 in the corresponding position of valve block ontology 1
The stress set avoids in detonating fuse 12 corresponding position on valve block ontology 1 from uneven phenomenon occur, guarantees detonating fuse 12
Corresponding position thickness is uniform on valve block ontology 1.By the punching press in two times of detonating fuse 12, thick pressure valve piece ontology 1 is first passed through, in valve block
The thick crimping of explosion is formed on ontology 1, positions detonating fuse 12 using the thick crimping of explosion, then the thick crimping shape of explosion is deepened by pressure-sizing
At detonating fuse 12, so that the depth of detonating fuse 12 is greater than the depth of auxiliary line 11, and auxiliary line 11 is utilized in the process
Stress of the grooves disperse in the thick crimping of punching course explosion corresponding position on valve block ontology 1.Since explosion-proof valve is by twice
A possibility that punching press detonating fuse 12 gradually deepens the depth of detonating fuse 12, further decreases valve block ontology 1 deformation occurs.
In the present embodiment, the depth of the thick crimping of explosion be equal to auxiliary line 11 depth (i.e. the thick crimping of explosion is in valve block sheet
Corresponding thickness is equal to the corresponding thickness on valve block ontology 1 of auxiliary line 11 on body 1), and the depth of detonating fuse 12 is greater than described
The depth of auxiliary line 11.In other examples, the depth that the thick crimping of explosion also can be set is less than the depth of auxiliary line 11,
The depth of the intensification thick crimping of explosion in pressure-sizing, or the depth of the setting thick crimping of explosion are big less than the depth of auxiliary line 11
In, in pressure-sizing suitably reduce the thick crimping of tight-face blasting depth, both impact styles are equally by the thick crimping punching press shape of explosion
At detonating fuse 12.
As a kind of perferred technical scheme, after the step s 40 further include step S50, the valve block ontology 1 anneals
Forming processes eliminate stress remaining on punching course middle valve plate ontology 1, reduce valve block ontology 1 deformation and deformation can
It can property.
The present embodiment also provides a kind of battery, including explosion-proof valve block described in any of the above-described kind of embodiment.This kind of battery can
It is uniform in 1 corresponding position thickness of valve block ontology by the detonating fuse 12 in explosion-proof valve block, be conducive to improve the detonating fuse 12 and open
The consistency opened, and then improve the security performance of battery.
It should be noted that explosion valve block of the present invention can be adapted for button cell, it is readily applicable to cylinder
Battery etc., the battery types not being applicable in herein the explosion-proof valve block are limited.
In the present embodiment, the production method of this kind of battery is described in detail by taking cylindrical battery as an example, comprising the following steps:
Step a, explosion-proof valve block described in offer top cover, core, shell and any of the above-described embodiment；
Step b, the explosion-proof valve block and the top cover are welded by Laser Welding, realizes the dress to explosion-proof valve block and top cover
Match；
Step c, the core, the shell and the top cover are assembled, forms semi-finished product battery；
Step d, electrolyte is injected in the semi-finished product battery, and carries out formation charging, forms battery.
In the description of this article, it is to be understood that term " first ", " second " are only used for being distinguish in description,
Without particular meaning.
It is to be understood that above-mentioned specific embodiment is only that presently preferred embodiments of the present invention and institute's application technology are former
Reason, within the technical scope of the present disclosure, variation that anyone skilled in the art is readily apparent that or
Replacement, should be covered by the scope of protection of the present invention.
Claims (10)
1. a kind of explosion-proof valve block, which is characterized in that including valve block ontology, be provided with detonating fuse, auxiliary line on the valve block ontology
And convex closure structure, the detonating fuse and the auxiliary line are sunk structure and the setting of the two interval, and the auxiliary line is by electricity
It being formed towards the inside battery is recessed outside pond, the convex closure structure includes spaced first convex closure and the second convex closure,
Between first convex closure and second convex closure, second convex closure is arranged in the detonating fuse and institute the auxiliary line
It states between auxiliary line, first convex closure and second convex closure are arranged with the detonating fuse and the auxiliary line interval.
2. explosion-proof valve block according to claim 1, which is characterized in that the shape and structure of the auxiliary line and the detonating fuse
Match.
3. explosion-proof valve block according to claim 1, which is characterized in that the detonating fuse and the auxiliary line enclose set shape respectively
At there is closed area, the detonating fuse, which is arranged in, in the auxiliary line encloses and sets the inside to form closed area, or, the auxiliary line
It the detonating fuse is set encloses and set the outside to form sealing area.
4. explosion-proof valve block according to claim 1, which is characterized in that the groove width of the auxiliary line is greater than the detonating fuse
Groove width.
5. explosion-proof valve block according to claim 1, which is characterized in that first convex closure and second convex closure are by institute
Inside battery is stated towards the outside batteries projection.
6. explosion-proof valve block according to claim 5, which is characterized in that first convex closure is convex with the first concave surface and first
Face, second convex closure have the second concave surface and the second convex surface, and first concave surface and second concave surface are respectively positioned on the electricity
Inside pond, first convex surface and second convex surface are respectively positioned on the outside batteries.
7. explosion-proof valve block according to claim 1, which is characterized in that the valve block ontology includes the first setting unit and second
Setting unit, first setting unit and second setting unit are planar structure, detonating fuse setting first setting
In portion, first setting unit have the first medial surface and the first lateral surface, second setting unit have the second medial surface and
Second lateral surface, first medial surface and second medial surface are respectively positioned on the valve block ontology towards the inside battery
Side, first lateral surface and second lateral surface are respectively positioned on the valve block ontology towards the side of the outside batteries,
There is the first difference in height, first lateral surface and second outside between first medial surface and second medial surface
There is the second difference in height between face.
8. explosion-proof valve block according to claim 1, which is characterized in that first convex closure is integrally formed setting；Or, described
The molding setting of first convex closure fission；Or, second convex closure is integrally formed setting；Or, the second convex closure fission molding setting.
9. a kind of production method of explosion-proof valve block, which is characterized in that as claimed in any one of claims 1 to 8 anti-for making
Quick-fried valve block, comprising the following steps:
Step S10, valve block ontology and the mold for valve block ontology described in punching press are provided；
Step S20, the described mold in the outside of the valve block ontology towards valve block ontology described in the punching press of inside, in the valve block sheet
The first convex closure and the second convex closure are formed on body；
Step S30, valve block ontology described in the described mould punching forms auxiliary line in the lateral surface of the valve block ontology and explosion is thick
Crimping；
Step S40, pressure-sizing is carried out to the thick crimping of the explosion, detonating fuse will be become from the thick crimping of the explosion.
10. a kind of battery, which is characterized in that including explosion-proof valve block as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910425094.XA CN110061173A (en) | 2019-05-21 | 2019-05-21 | A kind of explosion-proof valve block and preparation method thereof, the battery comprising this explosion-proof valve block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910425094.XA CN110061173A (en) | 2019-05-21 | 2019-05-21 | A kind of explosion-proof valve block and preparation method thereof, the battery comprising this explosion-proof valve block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110061173A true CN110061173A (en) | 2019-07-26 |
Family
ID=67323967
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910425094.XA Pending CN110061173A (en) | 2019-05-21 | 2019-05-21 | A kind of explosion-proof valve block and preparation method thereof, the battery comprising this explosion-proof valve block |
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| CN (1) | CN110061173A (en) |
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| CN111916615A (en) * | 2020-07-15 | 2020-11-10 | 江苏阿李动力科技有限公司 | Power battery explosion-proof valve structure and processing technology thereof |
| WO2021120043A1 (en) * | 2019-12-18 | 2021-06-24 | 惠州亿纬锂能股份有限公司 | Safety apparatus, fabrication method and battery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021120043A1 (en) * | 2019-12-18 | 2021-06-24 | 惠州亿纬锂能股份有限公司 | Safety apparatus, fabrication method and battery |
| CN111916615A (en) * | 2020-07-15 | 2020-11-10 | 江苏阿李动力科技有限公司 | Power battery explosion-proof valve structure and processing technology thereof |
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