CN107331821A - A kind of lithium ion battery explosion-proof valve with reinforcement - Google Patents
A kind of lithium ion battery explosion-proof valve with reinforcement Download PDFInfo
- Publication number
- CN107331821A CN107331821A CN201710752749.5A CN201710752749A CN107331821A CN 107331821 A CN107331821 A CN 107331821A CN 201710752749 A CN201710752749 A CN 201710752749A CN 107331821 A CN107331821 A CN 107331821A
- Authority
- CN
- China
- Prior art keywords
- reinforcement
- explosion
- proof
- proof valve
- bonnet
- 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
- 230000002787 reinforcement Effects 0.000 title claims abstract description 103
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 17
- 210000003205 muscle Anatomy 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000007423 decrease Effects 0.000 abstract description 3
- 238000002474 experimental method Methods 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract description 3
- 210000003660 reticulum Anatomy 0.000 description 14
- 230000010485 coping Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 210000002435 tendon Anatomy 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
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 discloses a kind of lithium ion battery explosion-proof valve with reinforcement, including explosion-proof valve circle, explosion-proof bonnet and reinforcement, the reinforcement includes the first reinforcement and the second reinforcement, explosion-proof bonnet is fixedly connected with the inside of the explosion-proof valve circle, the explosion-proof valve, which is covered, to be provided with and explosion-proof valve loop-shaped identical annular groove, the centre of the explosion-proof bonnet is provided with the first reinforcement and the second reinforcement, first reinforcement and the second reinforcement are fixedly connected with the top of explosion-proof bonnet, and the opening of the first reinforcement and the second reinforcement is towards conversely.This carries the lithium ion battery explosion-proof valve of reinforcement, first reinforcement and the second reinforcement are extrusion or drawing and forming from explosion-proof bonnet, it can prevent from deforming explosion-proof valve in transportation, rupture, the excessive caused tear of explosion-proof valve amplitude in breath test experiment can also be avoided, explosion-proof value decline is excessive, prevents explosion-proof valve deformation in production process, the risk of rupture, lifts the service life of explosion-proof valve.
Description
Technical field
The present invention relates to lithium ion battery explosion-proof valve technology field, especially a kind of lithium ion battery with reinforcement is prevented
Quick-fried valve.
Background technology
Simplest lithium ion battery top cover is included：Coping plate, positive terminal, negative terminal, with modeling between negative terminal and coping plate
Material insulation, there is a burst disk (Vent) in the middle of coping plate, and burst disk is very shallow impressing together, and its inferior position is：
A transportations easily cause to damage to explosion-proof valve, deformation.
B easily ruptures explosion-proof valve in breath test.
Employee, which touches, in c production processes easily there is explosion-proof valve rupture, deformation.
The content of the invention
It is an object of the invention to provide a kind of lithium ion battery explosion-proof valve with reinforcement, possessing can prevent explosion-proof
Valve failure by rupture improves the advantage of service life, the problem of to solve in above-mentioned background technology.
To achieve the above object, the present invention provides following technical scheme：
A kind of lithium ion battery explosion-proof valve with reinforcement, including explosion-proof valve circle, explosion-proof bonnet and reinforcement, it is described to add
Strengthening tendons includes being fixedly connected with explosion-proof bonnet on the inside of the first reinforcement and the second reinforcement, the explosion-proof valve circle, described explosion-proof
Be provided with bonnet with explosion-proof valve loop-shaped identical annular groove, the centre of the explosion-proof bonnet be provided with the first reinforcement and
Second reinforcement, first reinforcement and the second reinforcement are fixedly connected with the top of explosion-proof bonnet, the first reinforcement and
The opening of second reinforcement is towards conversely.
It is used as further scheme of the invention：The explosion-proof valve circle is set in racetrack.
It is used as further scheme of the invention：First reinforcement and the second reinforcement semicircular in shape shape.
It is used as further scheme of the invention：The cross section of first reinforcement and the second reinforcement is in arch form knot
Structure, the width range on the top and bottom of the first reinforcement and the second reinforcement is 1-4 millimeters, is highly 2.0 millimeters.
It is used as further scheme of the invention：The spacing of first reinforcement and the second reinforcement is not less than 0.5 millimeter.
Compared with prior art, beneficial effects of the present invention are as follows：
This carries the lithium ion battery explosion-proof valve of reinforcement, and the first reinforcement and the second reinforcement are to be squeezed from explosion-proof bonnet
Go out or drawing and forming, the first reinforcement and the second reinforcement can be ensured by adding the size of the first reinforcement and the second reinforcement
Stability in use, the setting of the first reinforcement and the second reinforcement can prevent from deforming explosion-proof valve in transportation, rupture, also may be used
To avoid the excessive caused tear of explosion-proof valve amplitude during breath test is tested, explosion-proof value decline is excessive, prevents from preventing in production process
Quick-fried valve deformation, the risk of rupture lifts the service life of explosion-proof valve.
Brief description of the drawings
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is sectional view along AA of the invention；
Fig. 3 for the present invention BB to sectional view；
Fig. 4 is enlarged drawing at the A-A of the present invention；
Fig. 5 is enlarged drawing at the B-B of the present invention.
In figure：1 explosion-proof valve circle, 2 explosion-proof bonnets, 21 annular grooves, 3 first reinforcements, 4 second reinforcements.
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 is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Refer in Fig. 1-5, the embodiment of the present invention,
A kind of lithium ion battery explosion-proof valve with reinforcement, including explosion-proof valve circle 1, explosion-proof bonnet 2, the first reinforcement 3
With the second reinforcement 4, explosion-proof valve circle 1 is set in racetrack, and the inner side of explosion-proof valve circle 1 is fixedly connected with explosion-proof bonnet 2, explosion-proof valve
Be provided with lid 2 with the explosion-proof shape identical annular groove 21 of valve circle 1, relatively thin at annular groove 21, easily explosion, explosion-proof here
The centre of bonnet 2 is provided with the first reinforcement 3 and the second reinforcement 4, and two reinforcements make stability more preferably, and the of semicircular in shape
One reinforcement 3 and the second reinforcement 4 are fixedly connected with the top of explosion-proof bonnet 2, and the first reinforcement 3 and the second reinforcement 4 are
The drawing and forming from explosion-proof bonnet 2, can also the extrusion molding from explosion-proof bonnet 2, it is ensured that the first reinforcement 3 and the second reinforcement
4 with the connective stability of battery anti-explosion valve, the opening of the first reinforcement 3 and the second reinforcement 4 is towards on the contrary, the first reinforcement 3
It is in arch form structure with the cross section of the second reinforcement 4, the top minimum widith of the first reinforcement 3 and the second reinforcement 4 is 1 milli
Rice, bottom Breadth Maximum is 4 millimeters, is highly 2.0 millimeters, and the spacing of the first reinforcement 3 and the second reinforcement 4 is not less than 0.5
These sizes of millimeter, the first reinforcement 3 and the second reinforcement 4 can ensure the use of the first reinforcement 3 and the second reinforcement 4
Stability, when inside battery overcharges the pressure for producing calorie product explosion-proof valve, explosion-proof valve will automatically be broken at annular groove 21
Split to prevent battery explosion, the setting of the first reinforcement 3 and the second reinforcement 4 can prevent from deforming explosion-proof valve in transportation,
Rupture, the excessive caused tear of explosion-proof valve amplitude in breath test experiment can also be avoided, explosion-proof value decline is excessive, prevents from producing
During explosion-proof valve deform, the risk of rupture, lifted explosion-proof valve service life.
In summary：This carries lithium ion battery explosion-proof valve of reinforcement, the first reinforcement 3 and the second reinforcement 4 be from
Extrusion or drawing and forming in explosion-proof bonnet 2, the first reinforcement can be ensured by adding the size of the first reinforcement 3 and the second reinforcement 4
The stability in use of the reinforcement 4 of muscle 3 and second, the setting of the first reinforcement 3 and the second reinforcement 4 can prevent from making in transportation
Explosion-proof valve is deformed, rupture, can also avoid the excessive caused tear of explosion-proof valve amplitude in breath test experiment, and explosion-proof value declined
Greatly, prevent that explosion-proof valve is deformed in production process, the risk of rupture lifts the service life of explosion-proof valve.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the claim involved by limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (5)
1. a kind of lithium ion battery explosion-proof valve with reinforcement, including explosion-proof valve circle (1), explosion-proof bonnet (2) and reinforcement, its
It is characterised by：The reinforcement includes the first reinforcement (3) and the second reinforcement (4), and the inner side of the explosion-proof valve circle (1) is fixed
Be connected with explosion-proof bonnet (2), the explosion-proof bonnet (2) be provided with explosion-proof valve circle (1) shape identical annular groove (21),
The centre of the explosion-proof bonnet (2) is provided with to be strengthened on symmetrical first reinforcement (3) of explosion-proof bonnet (2) center line and second
Muscle (4), first reinforcement (3) and the second reinforcement (4) are fixedly connected with the top of explosion-proof bonnet (2), and first strengthens
The opening of muscle (3) and the second reinforcement (4) is towards conversely.
2. a kind of lithium ion battery explosion-proof valve with reinforcement according to claim 1, it is characterised in that：It is described explosion-proof
Valve circle (1) is set in racetrack.
3. a kind of lithium ion battery explosion-proof valve with reinforcement according to claim 1, it is characterised in that：Described first
Reinforcement (3) and the second reinforcement (4) semicircular in shape shape.
4. a kind of lithium ion battery explosion-proof valve with reinforcement according to claim 1, it is characterised in that：Described first
The cross section of reinforcement (3) and the second reinforcement (4) is in the top of arch form structure, the first reinforcement (3) and the second reinforcement (4)
The width range of end and bottom is 1-4 millimeters, is highly 2.0 millimeters.
5. a kind of lithium ion battery explosion-proof valve with reinforcement according to claim 1, it is characterised in that：Described first
The spacing of reinforcement (3) and the second reinforcement (4) is not less than 0.5 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710752749.5A CN107331821A (en) | 2017-08-28 | 2017-08-28 | A kind of lithium ion battery explosion-proof valve with reinforcement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710752749.5A CN107331821A (en) | 2017-08-28 | 2017-08-28 | A kind of lithium ion battery explosion-proof valve with reinforcement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107331821A true CN107331821A (en) | 2017-11-07 |
Family
ID=60204541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710752749.5A Pending CN107331821A (en) | 2017-08-28 | 2017-08-28 | A kind of lithium ion battery explosion-proof valve with reinforcement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107331821A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2022198622A1 (en) * | 2021-03-26 | 2022-09-29 | 江苏时代新能源科技有限公司 | Battery cell, battery, electronic apparatus, manufacturing method, and manufacturing device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101853930A (en) * | 2010-06-10 | 2010-10-06 | 芜湖根源科技有限公司 | Power-type lithium ion battery explosion-proof cap and manufacturing method thereof |
| CN205582984U (en) * | 2016-05-12 | 2016-09-14 | 宁德时代新能源科技股份有限公司 | Secondary cell top cap |
| CN207199722U (en) * | 2017-08-28 | 2018-04-06 | 苏州百思利新能源科技有限公司 | A kind of lithium ion battery explosion-proof valve with reinforcement |
-
2017
- 2017-08-28 CN CN201710752749.5A patent/CN107331821A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101853930A (en) * | 2010-06-10 | 2010-10-06 | 芜湖根源科技有限公司 | Power-type lithium ion battery explosion-proof cap and manufacturing method thereof |
| CN205582984U (en) * | 2016-05-12 | 2016-09-14 | 宁德时代新能源科技股份有限公司 | Secondary cell top cap |
| CN207199722U (en) * | 2017-08-28 | 2018-04-06 | 苏州百思利新能源科技有限公司 | A kind of lithium ion battery explosion-proof valve with reinforcement |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2022198622A1 (en) * | 2021-03-26 | 2022-09-29 | 江苏时代新能源科技有限公司 | Battery cell, battery, electronic apparatus, manufacturing method, and manufacturing device |
| EP4087045A4 (en) * | 2021-03-26 | 2023-04-19 | Jiangsu Contemporary Amperex Technology Limited | Battery cell, battery, electronic apparatus, manufacturing method, and manufacturing device |
| US12095111B2 (en) | 2021-03-26 | 2024-09-17 | Jiangsu Contemporary Amperex Technology Limited | Battery cell, battery, electrical device, manufacturing method, and manufacturing device |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171107 |
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