CN204155988U - A kind of lithium ion cylinder battery cover plate explosion-proof valve and battery - Google Patents

A kind of lithium ion cylinder battery cover plate explosion-proof valve and battery Download PDF

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Publication number
CN204155988U
CN204155988U CN201420464409.4U CN201420464409U CN204155988U CN 204155988 U CN204155988 U CN 204155988U CN 201420464409 U CN201420464409 U CN 201420464409U CN 204155988 U CN204155988 U CN 204155988U
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China
Prior art keywords
cover plate
battery
lithium ion
pressure disc
rupture pressure
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CN201420464409.4U
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Chinese (zh)
Inventor
李震祺
刘立君
张孟
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Individual
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Individual
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Gas Exhaust Devices For Batteries (AREA)

Abstract

The utility model provides a kind of lithium ion cylinder battery cover plate explosion-proof valve, comprise battery core cover plate and rupture pressure disc, battery core cover plate is provided with circular hole, rupture pressure disc diameter is greater than cover plate Circularhole diameter, rupture pressure disc thickness is 7-11 micron, cover plate inner circular aperture edge is provided with corrosion-resistant glue body, and rupture pressure disc is attached on the circular hole of battery core cover plate, and rupture pressure disc area covers the circular hole of battery core cover plate completely.A kind of battery, it comprises lithium ion cylinder battery cover plate explosion-proof valve described above.The utility model, by changing existing cylindrical lithium-ion battery cap plate blast resistance construction, ensure that the fail safe of lithium ion cylinder battery.Simplify the manufacture craft of lithium ion cylinder battery, reduce production cost.

Description

A kind of lithium ion cylinder battery cover plate explosion-proof valve and battery
Technical field
The utility model relates to lithium battery manufacture technology field, particularly lithium ion cylinder battery shell blast resistance construction.
Background technology
As portable electric appts portable power source, and the secondary lithium battery of motor vehicle driving power, because the specific energy of lithium ion battery is high, thus obtain the attention of countries in the world.Wherein liquid electrolyte lithium ion battery is used widely in fields such as number, communication, electronic equipment, portable power sources.Current commercial li-ion battery cell mainly contains four kinds of structures, is square bar housing battery, square plastic housing battery, cylindrical battery and Soft Roll polymer battery respectively.Wherein, cylindrical battery is ripe with its production equipment, and the advantages such as consistency is good, discharge-rate is high become the battery types that range of application in four kinds of batteries is the widest, user receives most.Along with the development of industry and the demand in market, lithium ion battery market will further to large dynamical system (electric automobile/energy-storage battery) future development.Current lithium ion cylinder battery housing mainly contains 2 clocks, aluminum hull and box hat, no matter is with box hat or the lithium ion cylinder battery of aluminum hull, all needs, at battery container design explosion-proof decompression device, to ensure the fail safe of battery.
There is certain defect in the explosion-proof valve that above-mentioned lithium ion cylinder battery housing is installed: not only add cost of manufacture, and reliability is not very high, as explosion-proof valve is malfunctioning, still there will be quick-fried shell phenomenon.And explosion-protection equipment is complicated, cost is high, it is explosion-proof not malfunctioning or exceed design pressure and just can open to causing to install gimmick.
Utility model content
The purpose of this utility model is the explosion-proof valve of a kind of high reliability provided for the deficiencies in the prior art, a kind of lithium ion cylinder battery cover plate explosion-proof valve, comprise battery core cover plate and rupture pressure disc, battery core cover plate is provided with circular hole, rupture pressure disc diameter is greater than cover plate Circularhole diameter, and rupture pressure disc thickness is 7-11 micron, and cover plate inner circular aperture edge is provided with corrosion-resistant glue body, rupture pressure disc is attached on the circular hole of battery core cover plate, and rupture pressure disc area covers the circular hole of battery core cover plate completely.
As further improvement of the utility model, the circular hole on described battery core cover plate is two.
As further improvement of the utility model, the diameter of described circular hole is 5 to 7 millimeters.
As further improvement of the utility model, rupture pressure disc diameter is greater than cover plate Circularhole diameter 3-4 millimeter.
As further improvement of the utility model, in 4 millimeters, battery core cover plate inner circular aperture edge, be provided with corrosion-resistant glue body.
As further improvement of the utility model, rupture pressure disc is copper sheet or is plastic sheet.
As further improvement of the utility model, copper thickness is 8-10 micron.
A kind of battery, it comprises the lithium ion cylinder battery cover plate explosion-proof valve described in above-mentioned any one.
The beneficial effects of the utility model are:
The utility model, by changing existing cylindrical lithium-ion battery cap plate blast resistance construction, ensure that the fail safe of lithium ion cylinder battery.Simplify the manufacture craft of lithium ion cylinder battery, reduce production cost.The utility model, by changing cylindrical electrical core explosion-proof valve, adds the reliability of battery core, the explosion-proof valve that the utility model proposes open pressure open pressure in any case all can not more than 3 kilograms.Simple manufacture craft greatly reduces the production cost etc. of battery core itself.
Accompanying drawing explanation
Fig. 1 is the utility model battery core covering plate structure schematic diagram;
Fig. 2 is the utility model lithium ion cylinder battery cover plate anti-explosion valve structure schematic diagram.
In figure, each component names is as follows:
Circular hole 1, rupture pressure disc 2, protruding position, aluminum plastic film sealing position 3.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
Examples of implementation 1:
A kind of lithium ion cylinder battery cover plate explosion-proof valve, comprise battery core cover plate and rupture pressure disc, battery core cover plate is provided with circular hole, circular hole is preferably two, the diameter of circular hole is determined according to battery size, such as Circularhole diameter can be 5 to 7 millimeters, rupture pressure disc can be copper sheet, copper sheet diameter is greater than cover plate Circularhole diameter 3-4 millimeter, copper thickness 8-10 micron, corrosion-resistant glue body is coated in 4 millimeters, cover plate inner circular aperture edge, copper sheet is attached on the circular hole on battery core cover plate, and copper sheet area covers cover plate circular hole completely.
Examples of implementation 2:
A kind of lithium ion cylinder battery cover plate explosion-proof valve, comprise battery core cover plate and rupture pressure disc, battery core cover plate is provided with circular hole, circular hole is preferably two, the diameter of circular hole is determined according to battery size, such as Circularhole diameter can be 5 to 7 millimeters, rupture pressure disc can be plastic sheet, plastic sheet diameter is greater than cover plate Circularhole diameter 3.5 millimeters, plastic sheet thickness 7,8,9,10,11 or 12 microns etc., corrosion-resistant glue body is coated in cover plate inner circular aperture edge 3 or 4 millimeters, plastic sheet is attached on the circular hole on battery core cover plate, and plastic sheet area covers cover plate circular hole completely.
A kind of battery, it comprises above-mentioned lithium ion cylinder battery cover plate explosion-proof valve.
Making step:
Get the metal cover board (as Fig. 1 :) of made circular hole.
Get die-cut good copper disk.(copper sheet diameter is greater than cover plate Circularhole diameter 3-4 millimeter, copper thickness 8-10 micron)
Corrosion-resistant glue body is coated in 4 millimeters, cover plate inner circular aperture edge.
Stick copper sheet, copper sheet area covers cover plate circular hole completely.
Shelve and dry.
Check whether copper sheet edge has tilting.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as belonging to protection range of the present utility model.

Claims (8)

1. a lithium ion cylinder battery cover plate explosion-proof valve, it is characterized in that: comprise battery core cover plate and rupture pressure disc, battery core cover plate is provided with circular hole, rupture pressure disc diameter is greater than cover plate Circularhole diameter, rupture pressure disc thickness is 7-11 micron, cover plate inner circular aperture edge is provided with corrosion-resistant glue body, and rupture pressure disc is attached on the circular hole of battery core cover plate, and rupture pressure disc area covers the circular hole of battery core cover plate completely.
2. a kind of lithium ion cylinder battery cover plate explosion-proof valve according to claim 1, is characterized in that: the circular hole on described battery core cover plate is two.
3. a kind of lithium ion cylinder battery cover plate explosion-proof valve according to claim 1, is characterized in that: the diameter of described circular hole is 5 to 7 millimeters.
4. a kind of lithium ion cylinder battery cover plate explosion-proof valve according to claim 1, is characterized in that: rupture pressure disc diameter is greater than cover plate Circularhole diameter 3-4 millimeter.
5. a kind of lithium ion cylinder battery cover plate explosion-proof valve according to claim 1, is characterized in that: be provided with corrosion-resistant glue body in 4 millimeters, battery core cover plate inner circular aperture edge.
6. a kind of lithium ion cylinder battery cover plate explosion-proof valve according to Claims 1-4 any one, is characterized in that: rupture pressure disc is copper sheet or is plastic sheet.
7. a kind of lithium ion cylinder battery cover plate explosion-proof valve according to claim 5, is characterized in that: copper thickness is 8-10 micron.
8. a battery, is characterized in that: it comprises the lithium ion cylinder battery cover plate explosion-proof valve described in above-mentioned any one.
CN201420464409.4U 2014-08-15 2014-08-15 A kind of lithium ion cylinder battery cover plate explosion-proof valve and battery Active CN204155988U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420464409.4U CN204155988U (en) 2014-08-15 2014-08-15 A kind of lithium ion cylinder battery cover plate explosion-proof valve and battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420464409.4U CN204155988U (en) 2014-08-15 2014-08-15 A kind of lithium ion cylinder battery cover plate explosion-proof valve and battery

Publications (1)

Publication Number Publication Date
CN204155988U true CN204155988U (en) 2015-02-11

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CN201420464409.4U Active CN204155988U (en) 2014-08-15 2014-08-15 A kind of lithium ion cylinder battery cover plate explosion-proof valve and battery

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CN (1) CN204155988U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105552253A (en) * 2016-01-31 2016-05-04 谢振华 Explosion-proof valve structure for lithium battery and processing technology for explosion-proof valve structure
CN108428922A (en) * 2018-03-31 2018-08-21 重庆市紫建电子有限公司 A kind of cylindrical cell
US11916248B2 (en) 2021-05-31 2024-02-27 Contemporary Amperex Technology Co., Limited Battery, manufacturing method and manufacturing apparatus thereof, and power consumption device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105552253A (en) * 2016-01-31 2016-05-04 谢振华 Explosion-proof valve structure for lithium battery and processing technology for explosion-proof valve structure
CN108428922A (en) * 2018-03-31 2018-08-21 重庆市紫建电子有限公司 A kind of cylindrical cell
US11916248B2 (en) 2021-05-31 2024-02-27 Contemporary Amperex Technology Co., Limited Battery, manufacturing method and manufacturing apparatus thereof, and power consumption device

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