WO2009001947A1 - Soupape de régulation de pression de pièces électroniques, et pièces électroniques utilisant la soupape - Google Patents

Soupape de régulation de pression de pièces électroniques, et pièces électroniques utilisant la soupape Download PDF

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Publication number
WO2009001947A1
WO2009001947A1 PCT/JP2008/061783 JP2008061783W WO2009001947A1 WO 2009001947 A1 WO2009001947 A1 WO 2009001947A1 JP 2008061783 W JP2008061783 W JP 2008061783W WO 2009001947 A1 WO2009001947 A1 WO 2009001947A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
container
pressure
regulating valve
pressure regulating
Prior art date
Application number
PCT/JP2008/061783
Other languages
English (en)
Japanese (ja)
Inventor
Atsushi Ogiue
Suguru Ito
Takao Imamura
Original Assignee
Rubycon Corporation
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rubycon Corporation filed Critical Rubycon Corporation
Priority to JP2009520658A priority Critical patent/JP5489714B2/ja
Priority to CN200880018692.5A priority patent/CN101682010B/zh
Publication of WO2009001947A1 publication Critical patent/WO2009001947A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/004—Details
    • H01G9/08—Housing; Encapsulation
    • H01G9/12—Vents or other means allowing expansion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/14—Arrangements or processes for adjusting or protecting hybrid or EDL capacitors
    • H01G11/18—Arrangements or processes for adjusting or protecting hybrid or EDL capacitors against thermal overloads, e.g. heating, cooling or ventilating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/78—Cases; Housings; Encapsulations; Mountings
    • 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
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/14—Arrangements or processes for adjusting or protecting hybrid or EDL capacitors
    • 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
    • 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
    • Y02E60/13—Energy storage using capacitors

Definitions

  • the present invention relates to a pressure control valve for adjusting the pressure in an electronic component container, and an electronic component using the same.
  • An electric double layer capacitor is formed by winding or laminating two electrodes coated with activated carbon on aluminum foil, a current collector, facing each other and separating paper (separate).
  • This electrochemical device is impregnated with an aqueous electrolyte solution or organic solvent electrolyte solution, housed in a bottomed cylindrical container, and the opening is closed with a sealing member to produce an electric double layer capacity.
  • This type of electric double-layer capacity sealing member has been provided with a pressure control valve to release the pressure in the container when the pressure in the container exceeds a certain level.
  • Various forms of pressure control valves have been proposed.
  • Japanese Patent Application Laid-Open No. 2 00 0-2 1 6 0 6 8 describes a sealing plug used in an electric double layer capacity.
  • the sealing plug 1 shown in FIG. 3 has two cylindrical members 9 a and 9 b that are located on the same center line and have different radii, and are connected with a taper member 10 interposed therebetween. It has been done.
  • a gas-permeable membrane 8 made of polytetrafluoroethylene and made of a water-repellent and microporous membrane that does not allow gas to pass through and is not allowed to pass through is fused to the tip of a cylindrical member 9b having a small radius.
  • a hole 7 a into which the gas that has passed through the gas permeable membrane 8 flows is formed at the center of the cylindrical member 9 b and the taper member 10. Further, at the center of the cylindrical member 9a having a radius larger than that of the cylindrical member 9b, there is formed a hole 7b that communicates with the hole 7a and is larger than the hole 7a.
  • Valve 2 is installed. The support member 3 of the relief valve 2 is fixed to the side wall of the hole 7 b, but the support member 3 freely diffuses gas in the space above and below it. be able to.
  • the relief valve 2 is activated when the pressure inside the air hole 7 a is less than the elastic force of the spring 4. Without airtight inside.
  • the pressure inside the hole 7a exceeds the elastic force of the spring 4
  • the spring 4 contracts and the gas flows out through the hole 7b.
  • the gas permeable membrane 8 is provided, so that the electrolyte does not permeate and only the gas permeates. Therefore, long-term reliability can be ensured.
  • Japanese Laid-Open Patent Publication No. 2000-193-9837 describes a pressure release valve provided on a sealing plate of a pressure vessel of an electric or electronic component such as a battery or a capacitor.
  • the pressure release valve 8 shown in FIG. 2 includes a valve seat 3 b in which a valve hole 3 a is opened on the inner periphery of the pressure vessel sealing plate 3, and the sealing plate 3 3 from the outer periphery of the valve seat 3 b. And a valve mounting recess 3c in which the valve body 8A is disposed on the inner periphery.
  • the valve body 8 A includes a fixed plate 10 locked to the valve mounting recess 3 c, and is provided integrally with the fixed plate 10 and is brought into close contact with the valve seat 3 b with a predetermined surface pressure. It consists of a seal lip 20 that opens by a predetermined internal pressure. A ventilation path is formed between the valve mounting recess 3 c and the fixed plate 10.
  • the pressure relief valve 8 has a case (pressure vessel) inner space S 1 whose internal pressure is less than the set valve opening pressure, so the tip lip of the seal lip 20 2 2 is in a closed state in close contact with the valve seat 3 b, preventing entry of water vapor and foreign matter from the outside.
  • the valve opening force is limited for some reason.
  • the tip lip portion 2 2 of the seal lip 20 moves away from the valve seat 3 b and opens, and the internal pressure of the case internal space S 1 It is released to the outside atmosphere through slits ⁇ 1 2.
  • the function of the capacitor or battery due to the heat is prevented from being deteriorated.
  • the object of the present invention is to solve the above-mentioned problems of the prior art and to release the gas generated in the container from the normal state, thereby preventing the deformation of the container and allowing the solvent component of the electrolyte to permeate. It is to provide a new pressure control valve for electronic components that can ensure long-term reliability by suppressing it.
  • Another object of the present invention is to provide an electronic component equipped with such a pressure control valve.
  • the pressure regulating valve of the present invention is disposed in a gas flow path that leads from the inside of the container to the outside in an electronic component having an electrochemical element and a sealed container that accommodates the element, and is used for adjusting the pressure in the container.
  • an opening / closing member that opens and closes the pressure control valve by allowing the gas permeable member to move in two directions due to an increase and a subsequent decrease in the gas pressure in the container; It is characterized by including.
  • the gas permeable member can be composed of a porous material supporting member and a gas selective permeable membrane supported by the porous material supporting member.
  • a gas selective permeable membrane supported by the porous material supporting member.
  • the opening / closing member includes a fixing member for fixing the opening / closing member at a predetermined position in the gas flow path, and a spring member which is manufactured integrally with the fixing member and allows the gas permeable member to move by an elastic action.
  • a fixing member for fixing the opening / closing member at a predetermined position in the gas flow path
  • a spring member which is manufactured integrally with the fixing member and allows the gas permeable member to move by an elastic action.
  • the fixing member and the spring member may be composed of separate parts. A separately prepared fixing member and spring member may be integrated.
  • the fixing member preferably facilitates its flow when a large amount of gas is released.
  • the fixing member can have, for example, a ring shape.
  • the pressure regulating valve of the present invention preferably includes a seal member for closing the gas flow path by contacting the gas permeable member.
  • the pressure regulating valve of the present invention preferably includes a gas-liquid separation membrane on the upstream side of the gas permeable member with respect to the gas flow direction from the inside of the container to the outside.
  • the gas-liquid separation membrane may be disposed at the gas inlet of the gas flow path, or may be disposed in contact with the seal member on the side opposite to the gas permeable member.
  • the electronic component of the present invention is an electronic component equipped with the pressure control valve of the present invention, such as a battery, an electrolytic capacitor, or an electric double layer capacitor.
  • FIG. 1 is a schematic view for explaining a pressure regulating valve of the present invention.
  • FIG. 2 is a schematic diagram illustrating a gas permeable member used in the pressure control valve of the present invention.
  • FIG. 3 is a view for explaining the gas flowing out of the container by the operation of the pressure control valve of the present invention.
  • FIGS. 4A to 4C are perspective views illustrating an example of an opening / closing member used in the pressure regulating valve of the present invention.
  • FIG. 5 is a diagram for explaining an example of the arrangement of the gas-liquid separation membrane used in the pressure control valve of the present invention.
  • FIG. 6 is a schematic diagram for explaining an electric double layer capacity as an example of an electronic component equipped with the pressure control valve of the present invention.
  • FIG. 7 is a diagram showing the dimensions of the fixing member portion of the opening / closing member used in Example 1.
  • FIG. 8 is a view showing a conventional silicone rubber explosion-proof valve used in Comparative Example 2.
  • the pressure regulating valve of the present invention is used for regulating the pressure in a container in an electronic component having an electrochemical element and a sealed container containing the element together with an electrolyte.
  • Examples of electronic components include batteries, electrolytic capacitors, and electric double layer capacitors that require the pressure in the container to be higher than a predetermined value due to gas generation.
  • a battery a positive electrode plate and a negative electrode plate as electrochemical elements are accommodated in a sealed container filled with an electrolytic solution.
  • gas hydrogen, oxygen
  • the pressure in the container is released to reduce the pressure in the container.
  • electrolytic capacitors and electric double-layer capacitors an electrochemical element formed by winding or laminating anode and cathode foils facing each other with separator paper (separated) is impregnated with electrolyte solution and sealed container Housed inside. Even in electrolytic capacitors and electric double layer capacitors, when the pressure in the container is increased by the gas generated by electrolysis of the water in the electrolyte, the gas in the container is released by the pressure control valve, Can reduce the pressure.
  • the pressure control valve of the present invention will be described by taking a pressure control valve used in an electric double layer capacity as an example.
  • the pressure control valve of the present invention is disposed in the gas flow path 3 which is a through hole formed in the sealing member 2 disposed in the opening of the container 1 as shown in FIG. Is done.
  • the pressure regulating valve according to the present invention is a gas permeable member disposed in the gas flow path 3.
  • an internal space 1 a of the container 1 is electrically impregnated with an electrolyte.
  • a chemical element constituted by a pair of electrodes (anode, cathode) wound or laminated with separator paper and impregnated with electrolyte
  • the electrochemical element is connected to a U-node for passing through the sealing member 2 and electrically connecting from each electrode to the outside.
  • the gas permeable member 4 includes a support member 11 made of a porous material disposed on the side in contact with the opening / closing member 5, and hydrogen, carbon dioxide, etc. generated in the container. Further, it can be formed by a gas selective permeable membrane 12 that selectively permeates the gas present in the container.
  • the porous material support member 1 1 supports the gas permselective membrane 1 2, and the gas permeated through it passes through the gas flow path 3 (Fig. 1) and flows out of the container 1 (Fig. 1).
  • Support member 1 1 can be made of a ceramic material such as alumina or a metal material such as stainless steel.
  • the “porous material” may be any material that can support the thin gas permselective membrane 12 and has pores that reach from one side to the other side.
  • a ceramic sintered body or a metal sintered body having such pores, or a ceramic plate, a metal plate, a resin plate having an opening penetrating from one side to the other side, etc. be able to.
  • the “porous material” in the present invention may be one provided with a large number of small-diameter holes, or one provided with at least one large-diameter hole or opening.
  • the gas permselective membrane 1 2 is made of a material that selectively permeates the gas in the container.
  • Polysilazane can be mentioned as such a material. Polysilazane can pass the gas in the container while preventing the electrolyte used in the multilayer capacitor from passing therethrough. 'For this reason, when the pressure in the container is increased by the generated gas, the gas in the container can be released efficiently, and the permeation of the electrolyte that has been a problem can be suppressed. It is possible to extend the service life of electric double-layer capacitors.
  • Another material that can be used as the gas-selective membrane 1 2 is a silicone-modified fluoroelastomer.
  • This silicone-modified fluoroelastomer can pass the gas in the container while suppressing the passage of the electrolyte used in the electric double layer capacitor, and from the outside. Intrusion of moisture can be suppressed.
  • Electronic components especially electrolytic capacitors and electric double-layer capacitors
  • problems such as deterioration of electrolyte components and gas generation due to reaction with electrode foil due to the ingress of moisture from the outside, resulting in deterioration of electrical characteristics. It will be communicated.
  • the characteristic deterioration due to the ingress of moisture is severe. Therefore, silicone modified at least part of the gas selective permeable membrane 1 2
  • silicone modified at least part of the gas selective permeable membrane 1 2 By using a fluorine elastomer, it is possible to prevent moisture from the outside from entering the container and to prevent deterioration of the electrical characteristics of the capacitor.
  • a typical example of a silicone-modified fluoroelastomer having the above properties that can be used as a gas selective permeable membrane in the present invention is SIFEL (registered trademark) available from Shin-Etsu Chemical Co., Ltd.
  • S I F E L registered trademark
  • the gas permselective membrane 12 is composed of a laminate of a polysilazane film and a silicone-modified fluorine elastomer film.
  • Polysilazane can prevent the permeation of the electrolyte used in the multilayer capacitor, but has little effect on preventing moisture from entering from the outside.
  • the silane modified fluorine elastomer is excellent in preventing moisture from entering from the outside, while the permeation preventing effect of the electrolyte is not as good as that of polysilazane.
  • a polysilazane film and a silicone-modified fluorine elastomer film together, it is possible to prevent water from entering from the outside and effectively prevent liquid loss. As a result, deterioration of the characteristics of the capacitor due to moisture absorption can be prevented, and a longer-life electric double layer capacitor can be realized by suppressing the permeation of the electrolyte from the inside.
  • the gas permeable member considering the strength and gas permeability, the gas permeable member
  • the thickness of the support member 11 of 4 is 0.1 to 2 mm, preferably 0.5 to 1
  • the thickness of the gas selective permeation membrane 12 of polysilazane can be about 0.001 to: L mm, preferably about 0.01 to 0.1 mm.
  • the thickness of the gas-selective membrane of the silicone-modified fluorine elastomer is about 0.05 to 2 mm, preferably about 0.1 to l mm, considering the water permeability and gas permeability. can do.
  • the opening / closing member 5 (FIG. 1) in the pressure control valve of the present invention is composed of a fixing member 5a and a spring member 5b.
  • the fixing member 5 a is fixedly disposed at a predetermined position in the gas flow path 3.
  • the fixing member 5 a extends from the main body 5 a ′ and the main body 5 a ′, and engages with the recess provided in the sealing member 2, thereby engaging the fixing member 5 a with the sealing member 2.
  • the fixing member 5a has a structure that can easily and quickly release a large amount of gas flowing when the valve is released due to the pressure increase in the container to the outside.
  • it is possible to use a fixing member provided with one or more through-holes for example, a ring-shaped fixing member that allows gas to pass through the central portion.
  • a groove such as a slit may be provided along the gas flow direction, for example, on the outer periphery of the main body 5 a ′.
  • the panel member 5 b comes into contact with the gas permeable member 4 and normally closes the gas flow path 3 with the gas permeable member 4, and when the pressure in the container 1 reaches a predetermined value, FIG. As shown in Fig. 5, the permeation member 4 is pushed up by the action of the pressure to open the gas flow path 3 and act to cause the gas to flow out from the inside of the container.
  • the panel member 5b is preferably formed integrally with the fixing member 5a. By combining the fixing member 5a and the panel member 5b, it becomes easier to manage the parts, improve the manufacturing yield, and reduce the cost of the parts. it can. Examples of the opening / closing member 5 in which the fixing member 5a and the panel member 5b are integrated are shown in FIGS. 4A, 4B, and 4C. In some cases, the fixing member 5 a and the spring part Material 5b may be composed of separate parts. The parts of the fixing member 5a and the parts of the panel member 5b may be integrated together.
  • the gas permeable member 4 By combining the gas permeable member 4 with the opening / closing member 5 according to the present invention, it becomes possible to release the gas in the container to the outside through the permeable member, as the pressure in the container is normally increased. Can be kept below a predetermined pressure. When the pressure inside the container exceeds the specified level (when there is an abnormality such as sudden gas generation), the gas permeable member 4 rises to allow a large amount of gas to pass, thereby reducing the pressure inside the container. If the inside of the container drops below a predetermined pressure, the valve can be closed by the panel member 5b.
  • the gas flow path 3 can be closed by the gas permeable member 4 by using the seal member 6 as shown in FIG.
  • the seal member 6 is in close contact with the gas permeable member 4 in a normal time when the pressure in the container 1 is kept below a predetermined value, to ensure sealing and to evaporate the electrolyte component in the container or to the container. Intrusion of outside air can be prevented. In this case, the gas in the container is released through the gas permeable member.
  • the material of the seal member 6 is preferably ethylene-propylene-gen rubber (EPM or EPDM), butyl rubber, silicone, fluorine rubber, or fluorine-modified rubber.
  • gas-liquid separation membrane In the pressure control valve of the present invention, even when a large amount of gas is released outside the container due to its operation (opening of the gas flow path due to pressure increase in the container), the electrolyte is lost accompanying the gas.
  • a gas-liquid separation membrane can be used.
  • the gas-liquid separation membrane is located in front of the gas permeable member in the gas flow direction from the inside of the container to the outside (opposite of the open / close member) so that the liquid in the container does not reach the gas permeable member even when a large amount of gas is released. Side).
  • gas-liquid separation membranes include polytetrafluoroethylene (PT)
  • FE Polyethylene
  • PVDF Polyvinylidene Fluoride
  • PFA Polyfluoroethylene Polyfluoroalkyl Vinyl Ether Copolymer
  • Polyacrylonitrile Poly S
  • Poly A porous film having a thickness of about 0.1 to 1 mm made of a material such as “mi” can be used. Such a film can be easily fixed using an adhesive or the like.
  • Figure 1 shows the gas-liquid separation membrane 7 placed at the gas inlet to the gas flow path 3.
  • the gas-liquid separation membrane 7 may be disposed in contact with the seal member 6 on the opposite side to the gas permeable member 4.
  • the gas-liquid separation membrane 7 may be bonded to the seal member 6 or may be bonded to a shelf (a portion corresponding to the valve seat) 2 1 provided on the sealing member 2.
  • the sealing plate (equivalent to the sealing member 2) is sealed in the metal case with the capacitor element connected to the terminal, and then the through-hole (gas It is possible to impregnate the element with the electrolyte from the flow path 3), and then place each component of the pressure control valve in the through hole.
  • the electrolyte can be impregnated with a fixed amount of electrolyte, and the time during which the electrolyte is exposed to the outside air can be shortened to suppress deterioration of the electrolyte and improve the life of the capacitor. be able to.
  • the electrolyte since the electrolyte is not wasted, it is advantageous in terms of product cost.
  • the pressure regulating valve of the present invention has an electrochemical element and a sealed container that accommodates the element together with an electrolytic solution, and releases the gas generated in the container so that the inside of the container does not exceed a predetermined pressure. It can be used in batteries, electrolytic capacitors, electric double layer capacitors, etc. that need to be adjusted. As an example, FIG. 6 shows an electric double layer capacity equipped with the pressure control valve of the present invention.
  • the electric double layer capacitor in this figure is an electrolytic A liquid-impregnated element (capacitor element formed by winding or laminating an anode foil and a cathode foil with a separator paper between them) 3 1, and a bottomed cylindrical container 3 2 that accommodates the element, It is composed of a resin sealing plate 33 that closes the opening, and includes terminals (leads) 3 4 and 3 5 for electrically connecting the anode and the cathode to the outside.
  • the sealing plate 33 is provided with a through hole 36, and the pressure regulating valve of the present invention is provided in the through hole (shaded portion 37 in FIG. 6).
  • a gas permeable member with a diameter of 7 mm made of a porous alumina membrane (average pore size 1 m, thickness l mm) and a polysilazane membrane was used.
  • the opening and closing member with the structure shown in Fig. 4B (made of 0.15 mm thick stainless steel (SUS304-CSP-H) material, the fixing member with the dimensions shown in Fig.7, and the container A panel member designed to open the valve by operating at an internal pressure of about 0.2 MPa was used.
  • a gas permeable member (total thickness l mm) made by overlaying a polysilazane layer (thickness 0.2 mm, manufactured by Shin-Etsu Chemical Co., Ltd.) on the polysilazane layer of the gas permeable member of Example 1 is used. did. The same opening / closing member as in Example 1 was used.
  • a gas-impermeable polyacetal resin plate (thickness l mm) was used as the gas-permeable member.
  • the same opening / closing member as in Example 1 was used.
  • Comparative Example 2 A conventional silicone rubber explosion-proof valve with the structure schematically shown in Fig. 8.
  • a cylindrical non-aqueous electric double layer capacitor having a diameter of 51 mm and a length of 13 ⁇ mm was prepared.
  • a fluororubber ring seal member is placed in the opening of the sealing plate, a gas permeable member is placed thereon, and a fixing member is further placed thereon to allow gas permeation.
  • a pressure regulating valve was fabricated by fixing the member 3—.
  • a charge / discharge test was conducted on the electric double layer capacitors of Examples 1 and 2 and Comparative Example 1. Specifically, using a charge / discharge tester (manufactured by ASU ELECTRONICS Co., Ltd.), charge the battery with a constant current of 2 OA as the charge / discharge profile. After the voltage between terminals reaches 2.5 V, 2.5 V Constant voltage charge was performed for 30 minutes, and 2 OA constant current discharge was performed. The internal resistance was calculated using the discharge curve obtained in this way.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Gas Exhaust Devices For Batteries (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)

Abstract

La présente invention concerne, dans des pièces électroniques qui comprennent un élément électrochimique et un contenant fermé destiné à contenir l'élément, une soupape de régulation de pression qui est agencée dans un passage d'écoulement de gaz (3) qui mène de la partie intérieure à la partie extérieure du contenant (1), pour réguler la pression dans le contenant (1). La soupape de régulation de pression comprend (a) un élément de pénétration de gaz (4) destiné à faire pénétrer des gaz dans le contenant (1) de façon sélective, et (b) un élément de marche/arrêt (5) destiné à rendre l'élément de pénétration de gaz (4) mobile dans deux directions par l'augmentation et la chute subséquente de la pression de gaz dans le contenant, pour ainsi ouvrir/fermer la soupape de régulation de pression. La soupape de régulation de pression peut en outre comprendre un film de séparation gaz-liquide (7) destiné à empêcher la sortie du liquide, qui pourrait autrement être transporté par les gaz et sortir. La soupape de régulation de pression peut être utilisée de façon solidaire pour les pièces électroniques telles qu'une batterie, un condensateur électrolytique ou un condensateur à double couche électrique, qui peut maintenir une fiabilité prolongée en supprimant la pénétration du composant de solvant électrolyte destiné à être transporté par les gaz.
PCT/JP2008/061783 2007-06-22 2008-06-23 Soupape de régulation de pression de pièces électroniques, et pièces électroniques utilisant la soupape WO2009001947A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009520658A JP5489714B2 (ja) 2007-06-22 2008-06-23 電子部品用圧力調節弁及びこれを用いた電子部品
CN200880018692.5A CN101682010B (zh) 2007-06-22 2008-06-23 电子零件用压力调节阀以及使用它的电子零件

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-165498 2007-06-22
JP2007165498 2007-06-22

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WO2009001947A1 true WO2009001947A1 (fr) 2008-12-31

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JP (1) JP5489714B2 (fr)
CN (1) CN101682010B (fr)
WO (1) WO2009001947A1 (fr)

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WO2012126758A1 (fr) * 2011-03-22 2012-09-27 Sb Limotive Company Ltd. Élément de compensation de pression, boîtier présentant un élément de compensation de pression, accumulateurs aux ions de lithium ainsi que véhicule automobile
JP2013168293A (ja) * 2012-02-16 2013-08-29 Automotive Energy Supply Corp バッテリパックの防爆弁
JP2014209524A (ja) * 2013-03-22 2014-11-06 日本ケミコン株式会社 蓄電デバイス
WO2015005089A1 (fr) 2013-07-09 2015-01-15 日東電工株式会社 Élément d'évent, procédé de production d'élément d'évent et contenant présentant des propriétés de ventilation
WO2015133616A1 (fr) * 2014-03-06 2015-09-11 日東電工株式会社 Élément perméable aux gaz et récipient perméable à l'air
KR20160130420A (ko) 2014-03-06 2016-11-11 닛토덴코 가부시키가이샤 기체 투과 부재 및 통기성 용기
KR20160130419A (ko) 2014-03-06 2016-11-11 닛토덴코 가부시키가이샤 기체 투과 부재 및 통기성 용기
KR20160131038A (ko) 2014-03-06 2016-11-15 닛토덴코 가부시키가이샤 통기성 용기용 덮개, 통기성 용기 및 통기성 용기용 덮개의 제조 방법
JP2017045658A (ja) * 2015-08-27 2017-03-02 株式会社豊田自動織機 蓄電装置
JP2018525805A (ja) * 2015-07-28 2018-09-06 ビメッド テクニク アレトラー サナイ ベ ティジャーレット エー． エス． 圧力調整装置
WO2020067130A1 (fr) * 2018-09-25 2020-04-02 大日本印刷株式会社 Dispositif de vanne pour dispositif de stockage d'énergie et dispositif de stockage d'énergie
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JP2020053387A (ja) * 2019-06-12 2020-04-02 大日本印刷株式会社 蓄電デバイス用弁装置及び蓄電デバイス
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WO2015005089A1 (fr) 2013-07-09 2015-01-15 日東電工株式会社 Élément d'évent, procédé de production d'élément d'évent et contenant présentant des propriétés de ventilation
EP3115102A4 (fr) * 2014-03-06 2017-11-01 Nitto Denko Corporation Élément perméable aux gaz et récipient perméable à l'air
KR20160130418A (ko) 2014-03-06 2016-11-11 닛토덴코 가부시키가이샤 기체 투과 부재 및 통기성 용기
KR20160130420A (ko) 2014-03-06 2016-11-11 닛토덴코 가부시키가이샤 기체 투과 부재 및 통기성 용기
KR20160130419A (ko) 2014-03-06 2016-11-11 닛토덴코 가부시키가이샤 기체 투과 부재 및 통기성 용기
KR20160131038A (ko) 2014-03-06 2016-11-15 닛토덴코 가부시키가이샤 통기성 용기용 덮개, 통기성 용기 및 통기성 용기용 덮개의 제조 방법
JP2015181153A (ja) * 2014-03-06 2015-10-15 日東電工株式会社 気体透過部材及び通気性容器
WO2015133616A1 (fr) * 2014-03-06 2015-09-11 日東電工株式会社 Élément perméable aux gaz et récipient perméable à l'air
JP2018525805A (ja) * 2015-07-28 2018-09-06 ビメッド テクニク アレトラー サナイ ベ ティジャーレット エー． エス． 圧力調整装置
JP2017045658A (ja) * 2015-08-27 2017-03-02 株式会社豊田自動織機 蓄電装置
US11355813B2 (en) 2018-06-18 2022-06-07 Lg Energy Solution, Ltd. Venting device and method for manufacturing the same
EP3664188A4 (fr) * 2018-06-18 2020-11-04 Lg Chem, Ltd. Dispositif de ventilation et son procédé de fabrication
US11881591B2 (en) 2018-06-18 2024-01-23 Lg Energy Solution, Ltd. Venting device and method for manufacturing the same
JP2020053179A (ja) * 2018-09-25 2020-04-02 大日本印刷株式会社 蓄電デバイス用弁装置及び蓄電デバイス
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JP7205136B2 (ja) 2018-09-25 2023-01-17 大日本印刷株式会社 蓄電デバイス用弁装置及び蓄電デバイス
JP2020053381A (ja) * 2018-10-18 2020-04-02 大日本印刷株式会社 蓄電デバイス用弁装置及び蓄電デバイス
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EP3965219A4 (fr) * 2020-07-10 2022-03-09 Contemporary Amperex Technology Co., Limited Mécanisme de décompression, boîtier de batterie, cellule de batterie, batterie, procédé de préparation et dispositif
CN114788082A (zh) * 2020-07-10 2022-07-22 宁德时代新能源科技股份有限公司 泄压机构、电池盒、电池单体、电池、制备方法和装置
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JP2022018110A (ja) * 2020-07-14 2022-01-26 ▲東▼莞▲東▼▲陽▼光科研▲発▼有限公司 圧力解放弁およびそれを備えた電解コンデンサ
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