WO2005004274A1 - Electrode a membrane integree de dispositif electrochimique et procede de production de cette electrode - Google Patents

Electrode a membrane integree de dispositif electrochimique et procede de production de cette electrode Download PDF

Info

Publication number
WO2005004274A1
WO2005004274A1 PCT/CN2003/000527 CN0300527W WO2005004274A1 WO 2005004274 A1 WO2005004274 A1 WO 2005004274A1 CN 0300527 W CN0300527 W CN 0300527W WO 2005004274 A1 WO2005004274 A1 WO 2005004274A1
Authority
WO
WIPO (PCT)
Prior art keywords
membrane electrode
electrochemical device
porous conductive
integrated membrane
conductive substrate
Prior art date
Application number
PCT/CN2003/000527
Other languages
English (en)
Chinese (zh)
Inventor
Nianfang Wan
Gang Wang
Original Assignee
Xu, Gang
Li, Sanyou
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 Xu, Gang, Li, Sanyou filed Critical Xu, Gang
Priority to PCT/CN2003/000527 priority Critical patent/WO2005004274A1/fr
Priority to CNB038267020A priority patent/CN100373678C/zh
Priority to AU2003304303A priority patent/AU2003304303A1/en
Publication of WO2005004274A1 publication Critical patent/WO2005004274A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0289—Means for holding the electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8803—Supports for the deposition of the catalytic active composition
    • H01M4/8807—Gas diffusion layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • 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
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the invention relates to an integrated membrane electrode which can be used in electrochemical devices such as fuel cells, electrolytic cells, electrochemical synthesis and the like and a method for manufacturing the same.
  • an ion exchange membrane is used as a solid electrolyte, and a catalytic layer having a catalytic activity is sandwiched between two sides of the ion exchange membrane to form a catalytic electrode.
  • electrochemical devices include fuel cells that directly convert the chemical energy of fuel into electrical energy, water or chlor-alkali electrolytic cells, and electrochemical synthesis reactors.
  • ion-conducting polymer membrane As an ion-conducting polymer membrane, it should have ion-selective permeability. Generally, in fuel cells and solid polymer water electrolysis, ion-exchange membranes mainly play the role of transferring protons between the anode and the cathode, and are called proton exchange membranes. In the chlor-alkali industry, the ion-exchange membrane should have the function of sodium ion permeability and chlorine ion impermeability. In addition, the ion conductive polymer film must have good ionic conductivity to reduce internal resistance, high enough mechanical strength and structural strength, and it is also a substrate for a separator material and an electrode active material.
  • a proton exchange membrane fuel cell is generally composed of a proton exchange membrane, a catalytic layer and a gas diffusion layer on both sides thereof, and a bipolar plate with a gas conducting channel.
  • the proton exchange membrane is used as the electrolyte, and the cathode and anode catalytic layers in direct contact with the membrane and the outer gas diffusion layer are provided on both sides of the membrane.
  • the proton exchange membrane, the catalytic layer, and the gas diffusion layers on both sides thereof are generally referred to as a membrane electrode.
  • the catalyst with electrochemical catalytic activity contained in the cathode and anode is generally a precious metal element such as platinum, which may be a simple substance, an alloy or a mixture of oxides thereof.
  • the catalyst is small particles of 1 to 10 nm, which are deposited on a carrier powder with a conductive function, highly dispersed, and have a high specific surface area.
  • a binder such as Polytetrafluoroethylene emulsion, which also plays a hydrophobic role at the same time, or add ion exchange resin emulsion to form a proton channel, thereby forming a three-phase channel of protons, gases, and electrons in the active reaction center inside the catalytic layer.
  • solid polymer water electrolysis For other electrochemical devices such as solid polymer water electrolysis, it has a similar membrane electrode structure.
  • solid polymer water electrolysis it generally consists of an ion exchange membrane, a catalytic layer, and a current collecting plate.
  • the electrochemical device including many layered components such as a membrane electrode, a gas diffusion layer, and an electrode plate, in order to reduce the interface contact resistance between the catalytic layer, the proton exchange membrane, the gas diffusion layer, and the electrode plate, and improve the electron conductivity As well as water and heat transmission, a larger pressure must be applied to tightly laminate each layer, which adds some auxiliary devices and increases the complexity of assembly.
  • the ion exchange membrane is a flexible substance, which is inconvenient to use and assemble.
  • An object of the present invention is to provide an integrated membrane electrode for an electrochemical device, which can be used in electrochemical devices such as fuel cells, electrolytic cells, and electrochemical synthesis.
  • the membrane electrode has lower material cost, higher mechanical strength and dimensional stability, reduces the number of component layers, facilitates assembly and use, and simplifies the complexity of the device.
  • the object of the present invention is also to provide a method for manufacturing an integrated membrane electrode for an electrochemical device, which can use lower cost materials to produce a high mechanical strength and dimensional stability, and has a simple structure and convenient assembly. And the use of integrated membrane electrodes.
  • the present invention provides an integrated membrane electrode for an electrochemical device, which is characterized in that it includes at least a polymer substrate having a high porosity or a microporous structure as a supporting frame inside the membrane. Porous conductive substrates for supporting and conducting current to external circuits are provided on both sides of the polymer substrate. An ion exchange resin is filled in the polymer substrate, and the ion exchange resin completely fills all micropores of the polymer substrate.
  • a dense, air-impermeable film is formed, which is in close contact with the porous conductive substrates on both sides, and is covered or partially covered and bonded as a whole, and is laminated on at least the outer sides of the two porous conductive substrates.
  • a first catalytic layer is incorporated.
  • the present invention also provides a method for manufacturing the above-mentioned integrated membrane electrode for an electrochemical device.
  • a polymer substrate having a high porosity or a microporous structure is used as the internal support skeleton of the film.
  • a porous conductive substrate is provided on both sides for supporting and conducting current to the external circuit.
  • the ion exchange resin solution is poured onto the polymer substrate. After the solvent evaporates, the ion exchange resin completely fills all the micropores of the polymer substrate to form a dense and dense
  • a gas-permeable membrane, which is in close contact with the porous conductive substrate, is covered or partially covered and bonded as a whole, and a first catalytic layer is compounded on the outside of the porous conductive substrate on both sides.
  • the present invention also provides another integrated membrane electrode for an electrochemical device that can achieve the purpose of the present invention, which at least includes a polymer substrate having a high porosity or a microporous structure as a film internal support skeleton, the polymer substrate A porous conductive substrate for supporting and conducting current to an external circuit is provided on both sides of the substrate. Each surface of the porous conductive substrate is compounded with a catalytic layer. An ion exchange resin is filled in the polymer substrate. The ion exchange resin is completely It is filled with all the micropores of the polymer substrate to form a dense airtight film, and it is in close contact with the porous conductive substrate on both sides, and is covered or partially covered and bonded as a whole.
  • the present invention also provides a method for manufacturing the above-mentioned integrated membrane electrode for an electrochemical device.
  • a polymer substrate having a high porosity or a pore structure is used as the internal support skeleton of the film.
  • a porous conductive substrate for supporting and conducting current to an external circuit is provided on both sides, a second catalytic layer is compounded on the surfaces of the two porous conductive substrates, and an ion exchange resin solution is poured onto the polymer substrate. After the solvent evaporates, the ion exchange resin It is completely filled with all the micropores of the polymer substrate to form a dense airtight film, and it is in close contact with the porous conductive substrate, and is covered or partially covered and bonded as a whole.
  • the porous conductive substrate may be any good conductor that conducts electrons, and has a thickness of 0.01 mm-1.0 mm, and the opening ratio accounts for 10% to 901 ⁇ 2 of the total area of the substrate.
  • the shape of the openings may be circular or rectangular. And polygons.
  • a second catalytic layer can be compounded on the surface of the porous conductive substrate by coating or deposition.
  • the second catalytic layer can be a precious metal element such as platinum, can be a simple substance, an alloy, or some other precious metal oxides or mixtures with electrochemical catalytic activity. Noble metal oxide. This precious metal layer also has a high resistance to acid corrosion for the porous conductive substrate, which makes it more common in the working environment. Life.
  • the polymer substrate may be expanded polytetrafluoroethylene with a microporous structure.
  • the resin material capable of ion exchange may be a polymer having a proton passing capacity, including a perfluorosulfonic acid resin, a perfluorocarboxylic acid resin, a styrene-based polymer, polyvinyl alcohol, divinylbenzene, and a metal salt.
  • the method of compounding the first catalytic layer includes hot pressing, bonding, coating, deposition drying, chemical plating, vapor deposition, sputtering, and the like.
  • the first catalytic layer is made of platinum or a platinum alloy, and other noble metal oxides or mixed noble metal oxides with catalytic activity as catalysts. These catalysts can be attached to a carrier carbon or conductive powder, and at least one polymer is used as the catalyst.
  • the adhesive also contains a pore-forming agent, and is formed of a conductive porous material.
  • the pore-forming agent includes ammonium nitrate, ammonium oxalate, lithium carbonate, sodium chloride, sodium carbonate, ammonium carbonate, ammonium bicarbonate, zinc oxide, and the pores formed as gas channels.
  • the polymer adhesive may be a polytetrafluoroethylene material having a hydrophobic property, or an ion exchange resin material having a hydrophilic property.
  • an ion exchange resin layer containing a pore-forming agent may be further deposited on the outer side thereof.
  • the deposited ion-exchange resin layer containing a pore former can completely cover the conductive substrate.
  • the ion-exchange resin layer containing the pore-forming agent forms a pore-like channel penetrating the outside.
  • the effect of the present invention is that, firstly, the membrane is directly infused with an ion exchange resin, so that the membrane electrode has a really low cost.
  • the polymer substrate is used as the internal support skeleton of the membrane, and the porous conductive substrate is used as the external support of the membrane, so that the membrane electrode has high mechanical strength and dimensional stability.
  • an integrated composite ion exchange membrane membrane electrode is formed, which reduces the number of component layers and facilitates assembly and use.
  • the current can be conducted to the external circuit through the conductive substrate.
  • the battery does not need to apply large pressure to reduce the interface contact resistance and improve the conductivity of the electrons as well as the hydrothermal transmission, which simplifies the complexity of the device.
  • a three-dimensional three-dimensional reaction region can be formed on each side of the porous conductive substrate.
  • FIG. 1 is a structural cross-sectional view of a membrane electrode according to Embodiment 1 of the present invention.
  • FIG. 2 is a cross-sectional view of another membrane electrode structure according to Embodiment 1 of the present invention.
  • FIG. 3 is a schematic structural diagram of still another membrane electrode according to Embodiment 1 of the present invention.
  • FIG. 4 is an enlarged view of the microstructure of the polytetrafluoroethylene used in the polymer substrate of the present invention
  • FIG. 5 is an enlarged view of the structure of the porous conductive substrate of the present invention
  • FIG. 6 Schematic diagram of the manufacturing process of the membrane electrode structure shown in Figure 1;
  • FIG. 7 is a schematic diagram of a manufacturing process of the membrane electrode structure shown in FIG. 2;
  • FIG. 8 is a schematic diagram of a manufacturing process of the membrane electrode structure shown in FIG. 3;
  • FIG. 9 is a sectional view of a membrane electrode structure according to Embodiment 1 of the present invention.
  • FIG. 10 is a cross-sectional view of another membrane electrode structure according to Embodiment 2 of the present invention.
  • FIG. 1 1 is a schematic view of a manufacturing process of the membrane electrode structure shown in FIG. 9;
  • FIG. 12 is a schematic diagram of the manufacturing process of the membrane electrode structure shown in FIG. 10. detailed description
  • the present invention provides an integrated membrane electrode for an electrochemical device, which at least includes a polymer substrate 1 having a high porosity or a microporous structure as a support frame inside the film, and the polymer substrate 1
  • a porous conductive substrate 2 for supporting and conducting current to an external circuit is provided on both sides of the polymer substrate.
  • An ion exchange resin is filled in the polymer substrate 2, and the ion exchange resin completely fills all the micropores of the polymer substrate 1.
  • a dense, air-impermeable film 11 is formed and is in close contact with the porous conductive substrate 2 on both sides.
  • the first catalytic layer 4 is compounded by covering or partially covering and bonding together, and at least two outer sides of the porous conductive substrate are compounded.
  • the present invention also provides a manufacturing method for manufacturing the above-mentioned integrated membrane electrode for an electrochemical device, which uses a polymer substrate 1 having a high porosity or a microporous structure as a supporting frame inside the membrane. On both sides of the polymer substrate 1, a porous conductive substrate 2 for supporting and conducting electric current to an external circuit is provided. An ion exchange resin solution is poured onto the polymer substrate 1.
  • the ion exchange resin is completely Fill all the micropores of the polymer substrate 1 to form a dense, air-impermeable film 11 and make intimate contact with the porous conductive substrate 2 and cover or partially cover and bond together as a whole, and at least two of the porous conductive substrate 2 The outside is compounded with a first catalytic layer 4.
  • the membrane electrode of the present invention is directly infused with an ion exchange resin to form a membrane 11 to form a shield exchange membrane, the membrane electrode has a lower cost.
  • the polymer substrate 1 is used as the inner supporting framework of the membrane 11 and the porous conductive substrate 2 is used as the outer supporting body of the membrane 11, so that the membrane electrode has high mechanical strength and dimensional stability.
  • an integrated composite ion exchange membrane membrane electrode can be formed, reducing the number of component layers and facilitating assembly and use. It can conduct current to the external circuit through the conductive substrate 1.
  • the battery does not need to apply large pressure to reduce the interface contact resistance and improve the electron conductivity and water-heat transmission, which simplifies the complexity of the device.
  • the method in this embodiment specifically includes the following steps:
  • A making a porous conductive substrate 2 and a polymer substrate 1 having a high porosity or a microporous structure
  • a dense, air-impermeable film 11 is formed, which is in close contact with the porous conductive substrate 2 and is covered or partially covered and bonded as a whole;
  • a first catalytic layer 4 is compounded on the outside of the two porous conductive substrates 2.
  • the first catalytic layer 4 includes a catalyst, an adhesive, and a pore-forming agent. Further, the above-mentioned first catalytic layer 4 may be filled in the pores 21 of the porous conductive substrate 2, and a thin layer may be covered on the outer side surface of the porous conductive substrate 2 to further enhance the passage of the first catalytic layer 4. Catalysis of reactive substances.
  • the first catalytic layer 4 is made of platinum or a platinum alloy, and other noble metal oxides or mixed noble metal oxides having a catalytic activity as a catalyst, and these catalysts can be attached to a carrier carbon or a conductive powder. And at least one kind of polymer is used as an adhesive, and a pore-forming agent is also contained, thereby forming a conductive porous material.
  • the pore former may be ammonium nitrate, ammonium oxalate, lithium carbonate, sodium chloride, sodium carbonate, ammonium carbonate, ammonium bicarbonate, or zinc oxide.
  • the polymer adhesive may be a polytetrafluoroethylene material with a hydrophobic property, or an ion exchange resin material with a hydrophilic property. When it is a hydrophilic ion exchange resin material, the three-phase three-phase interface of proton, gas, and electrons of the internal active reaction center is actually formed in the first catalytic layer 4, thereby forming a three-dimensional three-phase reaction region. .
  • a second catalytic layer 3 may be compounded on each surface of the porous conductive substrate 2 on the polymer substrate 1 side according to actual needs. Or an anti-corrosive layer formed by anti-acid corrosion surface treatment. As shown in FIG. 7, after the porous conductive substrate 1 is manufactured, a second catalytic layer 3 is compounded on each surface of the porous conductive substrate 1 or an acid-resistant surface treatment is performed thereon.
  • each surface of the porous conductive substrate 2 on both sides of the polymer substrate 1 is compounded with a second catalytic layer 3 or processed.
  • Anti-corrosion coating formed by surface treatment.
  • the type of the catalyst of the second catalytic layer 3 may be different from the type of the catalyst of the first catalytic layer 4, so as to form different catalytic effects on the reactants passing through.
  • the thickness of the porous conductive substrate described in the present invention may be 0. Olmm-1. Omm.
  • the open porosity of the porous conductive substrate 2 should account for 10% to 90% of the total area of the substrate. The higher the open porosity, the better the effect.
  • the shape of the openings of the porous conductive substrate 2 may be circular, rectangular or multilateral. Shape or other various shapes, as long as micropores are formed to allow the reactive substance to pass through, there is no particular limitation on the shape. As shown in FIG. 5, it is a schematic diagram of a porous conductive substrate 2 with a rectangular opening.
  • the second catalytic layer 3 uses noble metal elements such as platinum, iridium, ruthenium, and osmium as a catalyst, and may be a simple substance, an alloy, or some other precious metal oxide or mixed precious metal oxide having electrochemical catalytic activity.
  • noble metal elements such as platinum, iridium, ruthenium, and osmium as a catalyst, and may be a simple substance, an alloy, or some other precious metal oxide or mixed precious metal oxide having electrochemical catalytic activity.
  • the polymer substrate may be expanded polytetrafluoroethylene having a microporous structure, with a thickness of 1 micrometer to 300 micrometers and a pore diameter of 0.01 to 10 micrometers, and the volume of open cells accounts for the total volume The proportion is not less than 50%.
  • the ion exchange resin material described in the present invention may be a perfluorosulfonic acid resin or a perfluorocarboxylic acid resin or a styrene-based polymer or a polyvinyl alcohol or divinylbenzene or a metal salt having a shield passing ability.
  • the solvent in which the ion exchange resin is dissolved may be water or various alcohols having 2 to 4 carbons and a mixture thereof.
  • the method of the composite catalytic layer may be hot pressing, bonding, coating, deposition drying, chemical plating, vapor deposition, or sputtering.
  • Example 2
  • the basic structure of this embodiment is the same as that of Embodiment 1. They all include at least a polymer substrate 1 having a high porosity or a microporous structure as a supporting frame of the film.
  • a porous conductive substrate 2 is provided on both sides for supporting and conducting current to an external circuit.
  • the polymer substrate 1 is filled with an ion exchange resin, and the ion exchange resin completely fills all the micropores of the polymer substrate 1 to form a dense body.
  • the air-impermeable film 11 is in close contact with the porous conductive substrate 2 on both sides, and is covered or partially covered and bonded as a whole.
  • the second electrode catalytic layer 3 is formed on the surfaces of two porous conductive substrates 2 to form a membrane electrode catalytic layer.
  • the manufacturing of the above-mentioned integrated membrane electrode for an electrochemical device is manufactured.
  • the method is to use a polymer substrate 1 having a high porosity or a microporous structure as a support frame inside the membrane, and provide porous conductive substrates on both sides of the polymer substrate 1 for supporting and conducting current to an external circuit.
  • the second catalytic layer 3 is compounded on the surfaces of two porous conductive substrates, and an ion exchange resin solution is poured onto the polymer substrate 1. After the solvent is volatilized, the ion exchange resin completely fills all the pores of the polymer substrate 1 to form a dense.
  • the air-impermeable film 11 is in close contact with the porous conductive substrate 2 and is covered or partially covered and bonded together.
  • the method for manufacturing a membrane electrode as shown in FIG. 11 may specifically include the following steps:
  • Step A and B are sequentially performed. Step A or step B may be performed first, or step A and step B may be performed simultaneously, which does not affect the structure of the fabricated membrane electrode.
  • an ion exchange containing a pore-forming agent may be further compounded on the outside of the porous conductive substrate 2.
  • the resin layer 5 is formed with a pore-shaped channel penetrating to the outside after the pore-forming agent is removed to form a membrane electrode structure as shown in FIG. 10.
  • the ion-exchange resin containing the pore-forming agent can fill the pores of the porous conductive substrate 2 and completely cover the porous conductive substrate 2 to enhance the contact area with the reaction substance and enhance the electrode reaction effect.

Abstract

La présente invention concerne une électrode à membrane intégrée de dispositif électrochimique et un procédé de production de cette électrode. Cette électrode à membrane comprend au moins un substrat polymère qui possède une porosité élevée ou une structure microporeuse sous forme de structure de support intérieure de la membrane. Deux feuilles électriquement conductrices poreuses utilisées pour supporter la membrane et conduire le courant vers le circuit externe sont situées de chaque côté du substrat polymère, respectivement. Une résine à échange d'ions est injectée dans le substrat polymère, tous les micropores de ce substrat polymère étant complètement remplis avec cette résine à échange d'ions de façon à former une membrane dense. Cette membrane est imperméable au gaz et en contact étroit avec les feuilles électriquement conductrices poreuses situées des deux côtés de cette membrane, cette membrane et ces deux feuilles étant liées ensemble de façons à former un ensemble intégré et, au moins une première couche de catalyseur est située à l'extérieur de chaque feuille électriquement conductrice poreuse. Grâce à cette électrode à membrane intégrée, on obtient des réductions de coûts, une meilleure résistance de la machine et une dimension stabilisée. La structure de cette électrode à membrane est facile à assembler et à utiliser.
PCT/CN2003/000527 2003-07-03 2003-07-03 Electrode a membrane integree de dispositif electrochimique et procede de production de cette electrode WO2005004274A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/CN2003/000527 WO2005004274A1 (fr) 2003-07-03 2003-07-03 Electrode a membrane integree de dispositif electrochimique et procede de production de cette electrode
CNB038267020A CN100373678C (zh) 2003-07-03 2003-07-03 电化学装置用一体化膜电极及其制造方法
AU2003304303A AU2003304303A1 (en) 2003-07-03 2003-07-03 Integrative membrane electrode for an electrochemical device and production method of the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2003/000527 WO2005004274A1 (fr) 2003-07-03 2003-07-03 Electrode a membrane integree de dispositif electrochimique et procede de production de cette electrode

Publications (1)

Publication Number Publication Date
WO2005004274A1 true WO2005004274A1 (fr) 2005-01-13

Family

ID=33557721

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2003/000527 WO2005004274A1 (fr) 2003-07-03 2003-07-03 Electrode a membrane integree de dispositif electrochimique et procede de production de cette electrode

Country Status (3)

Country Link
CN (1) CN100373678C (fr)
AU (1) AU2003304303A1 (fr)
WO (1) WO2005004274A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100777082B1 (ko) * 2005-08-30 2007-11-28 주식회사 엘지생활건강 올리고뉴클레오타이드를 포함하는 피지분비 억제용 화장료조성물

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109802154A (zh) * 2018-12-03 2019-05-24 一汽解放汽车有限公司 以扩散层作集电极的燃料电池
CN109742427A (zh) * 2018-12-03 2019-05-10 一汽解放汽车有限公司 以膜电极作集电极的燃料电池
CN111346622B (zh) * 2018-12-24 2023-05-09 内蒙古蒙牛乳业（集团）股份有限公司 色谱填料及其制备方法和用途

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5176966A (en) * 1990-11-19 1993-01-05 Ballard Power Systems Inc. Fuel cell membrane electrode and seal assembly
US5252410A (en) * 1991-09-13 1993-10-12 Ballard Power Systems Inc. Lightweight fuel cell membrane electrode assembly with integral reactant flow passages
US5284718A (en) * 1991-09-27 1994-02-08 Ballard Power Systems Inc. Fuel cell membrane electrode and seal assembly
CN1275250A (zh) * 1997-10-10 2000-11-29 美国3M公司 制备膜电极的方法
WO2001061774A1 (fr) * 2000-02-17 2001-08-23 Nedstack Holding B.V. Membrane echangeuse d'ions renforcee
US20020064593A1 (en) * 2000-10-12 2002-05-30 Joachim Kohler Process for producing a membrane electrode assembly for fuel cells
EP1263066A2 (fr) * 2001-05-25 2002-12-04 Ballard Power Systems Inc. Membrane échangeuse d'ions composite

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5176966A (en) * 1990-11-19 1993-01-05 Ballard Power Systems Inc. Fuel cell membrane electrode and seal assembly
US5252410A (en) * 1991-09-13 1993-10-12 Ballard Power Systems Inc. Lightweight fuel cell membrane electrode assembly with integral reactant flow passages
US5284718A (en) * 1991-09-27 1994-02-08 Ballard Power Systems Inc. Fuel cell membrane electrode and seal assembly
CN1275250A (zh) * 1997-10-10 2000-11-29 美国3M公司 制备膜电极的方法
WO2001061774A1 (fr) * 2000-02-17 2001-08-23 Nedstack Holding B.V. Membrane echangeuse d'ions renforcee
US20020064593A1 (en) * 2000-10-12 2002-05-30 Joachim Kohler Process for producing a membrane electrode assembly for fuel cells
EP1263066A2 (fr) * 2001-05-25 2002-12-04 Ballard Power Systems Inc. Membrane échangeuse d'ions composite

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100777082B1 (ko) * 2005-08-30 2007-11-28 주식회사 엘지생활건강 올리고뉴클레오타이드를 포함하는 피지분비 억제용 화장료조성물

Also Published As

Publication number Publication date
AU2003304303A8 (en) 2005-01-21
AU2003304303A1 (en) 2005-01-21
CN1788381A (zh) 2006-06-14
CN100373678C (zh) 2008-03-05

Similar Documents

Publication Publication Date Title
US8343321B2 (en) Membrane electrode unit for the electrolysis of water
CA2532945C (fr) Unite membrane-electrodes pour electrolyse de l'eau
US20090047559A1 (en) Fuel cell electrode catalyst with improved noble metal utilization efficiency, method for manufacturing the same, and solid polymer fuel cell comprising the same
US6391487B1 (en) Gas diffusion electrode, method for manufacturing the same, and fuel cell with such electrode
US9373850B2 (en) Process for preparing a catalytic material
JP2001345106A (ja) 燃料電池用電極およびその製造方法
WO2017130903A1 (fr) Pile à combustible de type à oxyde solide
JP2014531513A (ja) ガス拡散電極
US20090023032A1 (en) Electrode for fuel cell, electrolyte-dispersed solution for forming electrode, method of producing the solution, and polymer electrolyte fuel cell
JP2020528199A (ja) 多機能電極添加剤
JP2010505222A (ja) ガス拡散電極用構造体
WO2005057698A1 (fr) Pile a combustible
JP4919005B2 (ja) 燃料電池用電極の製造方法
JP2000299119A (ja) 触媒層の製造方法
JP2001118583A (ja) 燃料電池電極およびその製造方法
WO2005004274A1 (fr) Electrode a membrane integree de dispositif electrochimique et procede de production de cette electrode
JP2006196452A (ja) 電極
JP5023591B2 (ja) 燃料電池用の膜・電極接合体
JPH08148151A (ja) 燃料電池用電極及びその製造方法
JP3965666B2 (ja) ガス拡散電極およびその製造方法
JP2001093544A (ja) 燃料電池用電極、その製造方法並びに燃料電池
JP2000235859A (ja) ガス拡散電極及びそれを備えた燃料電池
JPH05315000A (ja) 高分子固体電解質型燃料電池
KR100355392B1 (ko) 다층 구조의 이온 전도성 고분자막을 채용한 연료전지
JP2006059618A (ja) 固体高分子形燃料電池

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 20038267020

Country of ref document: CN

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP