CN105428078A - Novel integrated anti-explosion valve structure for super capacitor and fabrication method of novel integrated anti-explosion valve structure - Google Patents

Novel integrated anti-explosion valve structure for super capacitor and fabrication method of novel integrated anti-explosion valve structure Download PDF

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Publication number
CN105428078A
CN105428078A CN201510969480.7A CN201510969480A CN105428078A CN 105428078 A CN105428078 A CN 105428078A CN 201510969480 A CN201510969480 A CN 201510969480A CN 105428078 A CN105428078 A CN 105428078A
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CN
China
Prior art keywords
explosion
valve
ultracapacitor
valve structure
proof
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
Application number
CN201510969480.7A
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Chinese (zh)
Inventor
茅国云
刘永环
颜亮亮
黄廷立
吴明霞
虞嘉菲
安仲勋
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Shanghai Aowei Technology Development Co Ltd
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Shanghai Aowei Technology Development Co Ltd
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Application filed by Shanghai Aowei Technology Development Co Ltd filed Critical Shanghai Aowei Technology Development Co Ltd
Priority to CN201510969480.7A priority Critical patent/CN105428078A/en
Priority to PCT/CN2016/074567 priority patent/WO2017107303A1/en
Publication of CN105428078A publication Critical patent/CN105428078A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/14Arrangements or processes for adjusting or protecting hybrid or EDL capacitors
    • H01G11/18Arrangements or processes for adjusting or protecting hybrid or EDL capacitors against thermal overloads, e.g. heating, cooling or ventilating
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/78Cases; Housings; Encapsulations; Mountings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/84Processes for the manufacture of hybrid or EDL capacitors, or components thereof
    • 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
    • Y02E60/13Energy storage using capacitors

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)
  • Gas Exhaust Devices For Batteries (AREA)

Abstract

The invention relates to the technical field of electronic components, in particular to a novel integrated anti-explosion valve structure for a super capacitor and a fabrication method of the novel integrated anti-explosion valve structure. The novel integrated anti-explosion valve structure comprises a polar cap, a filling hole, an anti-explosion valve, an anti-explosion membrane and a seal ring, wherein a round hoe is processed in the polar cap; the round hole is shared by the filling hole and the anti-explosion valve; the round hole can play filling and decompressing roles; and the anti-explosion membrane is arranged on a valve cover of the anti-explosion valve. Compared with the prior art, the novel integrated anti-explosion valve structure for the super capacitor has the advantages that (1) the round hole is shared by the filling hole and the anti-explosion valve, and the round hole can play filling and decompressing roles, so that the design of the polar cap is simplified by the integrated structure and the manufacturing cost is saved; (2) the anti-explosion level is controllable and good in consistency by adjusting the thickness of the anti-explosion membrane; and (3) the novel integrated anti-explosion valve structure is wide in application range, applicable to the super capacitor, applicable to a power lithium ion battery, applicable to a cylindrical structure and applicable to a monocoque structure of a square and the like.

Description

A kind of novel all-in-one ultracapacitor anti-explosion valve structure and preparation method thereof
[technical field]
The present invention relates to technical field of electronic components, specifically a kind of novel all-in-one ultracapacitor anti-explosion valve structure and preparation method thereof.
[background technology]
Ultracapacitor is a kind of novel energy-storing device with high-specific-power, long-life, relatively high-energy-density.Important application is had in fields such as electronic product, new-energy automobile, new forms of energy (solar energy, wind energy)/intelligent grid energy storage.Cylindrical supercapacitor has higher energy density and lower internal resistance, has unique advantage in traffic application.
At present, the duricrust encapsulating structure of most of ultracapacitor, in order to avoid in use temperature is too high, causes air pressure inside excessive and causes monomer to explode, all on the position that monomer surface is suitable, as processing on housing or on polar cap has the position of certain weak degree.When capacitor arrangement air pressure inside acquires a certain degree, weak part ftractures and rushes down pressure, thus avoids bringing larger danger.But, in practical operation, be difficult to the precision ensureing the processing of shell weak part, be difficult to guarantee that capacitor bursts at a suitable temperature, thus do not have object that is explosion-proof and minimizing harm., explosion-proof valve and liquid-entering hole are incorporated at present on a polar cap, share a liquid injection hole and remain rare, accurately can control anti-explosion valve structure, the explosion-proof pressure and the explosion-proof consistency that reach different stage are still difficult meanwhile.
[summary of the invention]
The present invention be directed to the structure of most of cylindrical supercapacitor, avoid in use internal temperature too high, air pressure inside is caused to have too greatly the danger of blast, cause the problem of certain hidden danger to the fail safe of product, a kind of easy to process, easy to use, explosion-proof pressure is adjustable controlled novel all-in-one ultracapacitor anti-explosion valve structure and preparation method thereof is provided.
To achieve these goals, design a kind of novel all-in-one ultracapacitor anti-explosion valve structure, comprise polar cap, liquid injection hole, explosion-proof valve, rupture pressure disc and sealing ring, polar cap processes a circular hole, liquid injection hole and explosion-proof valve share described circular hole, circular hole can do fluid injection and pressure release multiple action, and the valve gap of described explosion-proof valve is provided with rupture pressure disc.
Explosion-proof valve can do the valve gap sealed, and can provide explosion-proof again.
Explosion-proof valve and circular hole junction are provided with sealing ring.
The valve gap outermost end of explosion-proof valve is provided with a barb structure, protects and security protection rupture pressure disc.
Integration ultracapacitor anti-explosion valve structure can be applied to cylindrical or square duricrust.
Integration ultracapacitor anti-explosion valve structure, by the thickness 10-50um of adjustment rupture pressure disc, adjusts the explosion-proof pressure of 5-20Kg.
A manufacture method for novel all-in-one ultracapacitor anti-explosion valve structure, these manufacture method concrete steps are as follows:
A. on the polar cap of ultracapacitor, a circular hole is processed, as liquid injection hole and relief hole;
B. electrolyte is injected by liquid injection hole;
C. with explosion-proof valve and sealing ring, liquid injection hole is sealed, prevent electrolyte from spilling the infiltration with water;
D. weak circular rupture pressure disc on the valve gap of explosion-proof valve, according to PV=nRT equation, the design of different battery cores and applying working condition, calculates the pressure that ultracapacitor inside is born, accurately the rupture pressure disc of processing different-thickness;
E. in the outermost end installing barb structure of valve gap, prevent external force in transport, use procedure from causing rupture pressure disc and damage and reduce the injury brought to external world after rupture pressure disc is opened.
Compared with the existing technology, its advantage is in the present invention:
1. liquid injection hole and explosion-proof valve share circular hole, and circular hole can do fluid injection and pressure release multiple action, and the design of polar cap of the designs simplification of this integration, saves manufacturing cost;
2. rupture pressure disc thickness is controlled, and the temperature when ultracapacitor inside raises, and when air pressure increases to a certain degree, air pressure overcomes the rupture pressure disc of valve gap outer end, plays the effect of pressure release, cooling, and this design makes explosion proof ratings controlled, and consistency is good;
3. applied widely, be not only applicable to ultracapacitor, be used in lithium ion battery simultaneously, be not only applicable to cylindrical, be applicable to square other monocoques such as grade simultaneously;
4. there is a barb structure in valve gap outermost end, prevent in transport, external force causes damage to rupture pressure disc in use procedure, rupture pressure disc harm to external world when going out can being slowed down simultaneously.
[accompanying drawing explanation]
Fig. 1 is structural representation of the present invention;
In figure: 1. polar cap 2. liquid injection hole 3. explosion-proof valve 4. rupture pressure disc 5. sealing ring.
[embodiment]
Below in conjunction with accompanying drawing, the invention will be further described, and this structure and principle are very clearly concerning the people of this specialty.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Object of the present invention is mainly for the structure of most of cylindrical supercapacitor, in order to avoid in use internal temperature is too high, air pressure inside is caused to have too greatly the danger of blast, selection most at present processes weak part on column structure, make its can capacitor internal energy be not too time pressure release, reduce harm and loss.But, in real process, be difficult to accomplish accurate pressure release, monomer or in advance explosion or explosion-proof object can not be played, cause certain hidden danger to the fail safe of product.This invention simplifies the structure of cylinder blanket, the thickness of explosion-proof valve can accurately control (10-50 μm), and then accurately can control explosion-proof pressure, and on polar cap, process the circular hole of suitable size, this circular hole can do fluid injection and pressure release multiple action.Explosion-proof valve both can do the valve gap sealed, and can provide accurate explosion-proof again, and feature is on valve gap, be integrated with the circular rupture pressure disc of a protruding weakness.According to PV=nRT equation, according to different designs and applying working condition, the pressure that whole monomer inside can be born can be calculated, accurately can process the rupture pressure disc of different-thickness.Different explosion-prooves can be played like this, reach different explosion proof ratings, there is good explosion-proof consistency, simultaneously, a barb structure is had in valve gap outermost end, can preventing in transport, external force causes damage to rupture pressure disc in use procedure, rupture pressure disc harm to external world when going out can being slowed down simultaneously.
See Fig. 1, in this explosion-proof valve, polar cap, liquid injection hole, explosion-proof valve concentrate on a polar cap, and liquid injection hole and explosion-proof valve share a hole, and this is that a kind of structure is simplified, simple structural design.When injecting electrolyte, liquid injection hole plays fluid injection effect, is sealed by liquid injection hole afterwards with explosion-proof valve and sealing ring, prevents electrolyte from spilling the infiltration with water.In use, because monomer temperature raises, monomer air pressure inside can be caused to promote, and the explosion-proof valve film on explosion-proof valve can break through by now too high pressure, monomer internal pressure is released in time, plays the object of pressure release and cooling.This rupture pressure disc thickness according to different battery core design and use operating modes, can be produced the rupture pressure disc (10-50um) of different-thickness, accurately can accomplish the explosion-proof pressure of 5-20Kg.
The manufacture method concrete steps of this ultracapacitor anti-explosion valve structure are as follows:
A. on polar cap, a circular hole is processed, as liquid injection hole and relief hole;
B. electrolyte is injected by liquid injection hole;
C. with explosion-proof valve and sealing ring, liquid injection hole is sealed, prevent electrolyte from spilling the infiltration with water;
D. weak circular rupture pressure disc on the valve gap of explosion-proof valve, according to PV=nRT equation, the design of different battery cores and applying working condition, calculates the pressure that ultracapacitor inside is born, accurately the rupture pressure disc of processing different-thickness;
E. in the outermost end installing barb structure of valve gap, prevent external force in transport, use procedure from causing rupture pressure disc and damage and reduce the injury brought to external world after rupture pressure disc is opened.

Claims (7)

1. a novel all-in-one ultracapacitor anti-explosion valve structure, comprise polar cap, liquid injection hole, explosion-proof valve, rupture pressure disc and sealing ring, it is characterized in that processing a circular hole on polar cap, liquid injection hole and explosion-proof valve share described circular hole, circular hole can do fluid injection and pressure release multiple action, and the valve gap of described explosion-proof valve is provided with rupture pressure disc.
2. a kind of novel all-in-one ultracapacitor anti-explosion valve structure as claimed in claim 1, is characterized in that explosion-proof valve can do the valve gap sealed, can provide explosion-proof again.
3. a kind of novel all-in-one ultracapacitor anti-explosion valve structure as claimed in claim 1, is characterized in that explosion-proof valve and circular hole junction are provided with sealing ring.
4. a kind of novel all-in-one ultracapacitor anti-explosion valve structure as claimed in claim 1, is characterized in that the valve gap outermost end of explosion-proof valve is provided with a barb structure, protects and security protection rupture pressure disc.
5. a kind of novel all-in-one ultracapacitor anti-explosion valve structure as claimed in claim 1, is characterized in that integrated ultracapacitor anti-explosion valve structure can be applied to cylindrical or square duricrust.
6. a kind of novel all-in-one ultracapacitor anti-explosion valve structure as claimed in claim 1, is characterized in that the thickness 10-50um of integrated ultracapacitor anti-explosion valve structure by adjustment rupture pressure disc, adjusts the explosion-proof pressure of 5-20Kg.
7. a manufacture method for novel all-in-one ultracapacitor anti-explosion valve structure as claimed in claim 1, is characterized in that these manufacture method concrete steps are as follows:
A. on the polar cap of ultracapacitor, a circular hole is processed, as liquid injection hole and relief hole;
B. electrolyte is injected by liquid injection hole;
C. with explosion-proof valve and sealing ring, liquid injection hole is sealed, prevent electrolyte from spilling the infiltration with water;
D. weak circular rupture pressure disc on the valve gap of explosion-proof valve, according to PV=nRT equation, the design of different battery cores and applying working condition, calculates the pressure that ultracapacitor inside is born, accurately the rupture pressure disc of processing different-thickness;
E. in valve gap outermost end installing barb structure, prevent external force in transport, use procedure from causing rupture pressure disc and damage and reduce the injury brought to external world after rupture pressure disc is opened.
CN201510969480.7A 2015-12-21 2015-12-21 Novel integrated anti-explosion valve structure for super capacitor and fabrication method of novel integrated anti-explosion valve structure Pending CN105428078A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201510969480.7A CN105428078A (en) 2015-12-21 2015-12-21 Novel integrated anti-explosion valve structure for super capacitor and fabrication method of novel integrated anti-explosion valve structure
PCT/CN2016/074567 WO2017107303A1 (en) 2015-12-21 2016-02-25 Novel integrated anti-explosion valve structure for super capacitor and method for making same

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CN201510969480.7A CN105428078A (en) 2015-12-21 2015-12-21 Novel integrated anti-explosion valve structure for super capacitor and fabrication method of novel integrated anti-explosion valve structure

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117691297A (en) * 2024-02-04 2024-03-12 蜂巢能源科技股份有限公司 Explosion-proof valve and battery

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109390504A (en) * 2018-12-13 2019-02-26 江西安驰新能源科技有限公司 A kind of lithium ion battery cover board
CN111128554A (en) * 2020-01-16 2020-05-08 丰宾电子(深圳)有限公司 Anti-splashing cover cap and anti-splashing capacitor

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JPH02260626A (en) * 1989-03-31 1990-10-23 Hitachi Condenser Co Ltd Electrolytic capacitor
CN201332025Y (en) * 2008-11-18 2009-10-21 中国船舶重工集团公司第七一二研究所 Super capacitor
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CN202134409U (en) * 2011-06-10 2012-02-01 北京集星联合电子科技有限公司 Super capacitor packaged pressure releasing explosion-proof valve
CN203488706U (en) * 2012-08-09 2014-03-19 Nok株式会社 Explosion-proof valve
CN203644571U (en) * 2013-12-27 2014-06-11 亚欧益盟科技(北京)有限公司 Super capacitor sealing device

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CN101937979A (en) * 2010-04-02 2011-01-05 奇瑞汽车股份有限公司 Explosion-proof membrane for lithium ion power battery and manufacturing method thereof
CN102931432A (en) * 2012-12-06 2013-02-13 上海航天电源技术有限责任公司 Self-balancing lithium ion battery
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JPH02260626A (en) * 1989-03-31 1990-10-23 Hitachi Condenser Co Ltd Electrolytic capacitor
CN201332025Y (en) * 2008-11-18 2009-10-21 中国船舶重工集团公司第七一二研究所 Super capacitor
CN101964409A (en) * 2010-09-01 2011-02-02 朝阳立塬新能源有限公司 Explosion-proof structure of energy-storing device
CN202134409U (en) * 2011-06-10 2012-02-01 北京集星联合电子科技有限公司 Super capacitor packaged pressure releasing explosion-proof valve
CN203488706U (en) * 2012-08-09 2014-03-19 Nok株式会社 Explosion-proof valve
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117691297A (en) * 2024-02-04 2024-03-12 蜂巢能源科技股份有限公司 Explosion-proof valve and battery
CN117691297B (en) * 2024-02-04 2024-04-19 蜂巢能源科技股份有限公司 Explosion-proof valve of battery and battery

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