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1. WO2007142364 - PROCESS FOR PRODUCING MEMBRANE/ELECTRODE ASSEMBLY FOR POLYMER ELECTROLYTE FUEL CELLS

Publication Number WO/2007/142364
Publication Date 13.12.2007
International Application No. PCT/JP2007/062062
International Filing Date 08.06.2007
IPC
H01M 8/10 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
10Fuel cells with solid electrolytes
H01M 4/86 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
H01M 4/88 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
88Processes of manufacture
H01M 4/92 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
90Selection of catalytic material
92Metals of platinum group
CPC
H01M 2008/1095
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
10Fuel cells with solid electrolytes
1095Fuel cells with polymeric electrolytes
H01M 4/8605
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
8605Porous electrodes
H01M 4/8807
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
88Processes of manufacture
8803Supports for the deposition of the catalytic active composition
8807Gas diffusion layers
H01M 4/881
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
88Processes of manufacture
8803Supports for the deposition of the catalytic active composition
881Electrolytic membranes
H01M 4/8828
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
88Processes of manufacture
8825Methods for deposition of the catalytic active composition
8828Coating with slurry or ink
H01M 4/8896
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
88Processes of manufacture
8878Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
8896Pressing, rolling, calendering
Applicants
  • ASAHI GLASS COMPANY, LIMITED [JP]/[JP] (AllExceptUS)
  • PANASONIC CORPORATION [JP]/[JP] (AllExceptUS)
  • SHIMODA, Hiroshi [JP]/[JP] (UsOnly)
  • WAKABAYASHI, Hirokazu [JP]/[JP] (UsOnly)
  • KINOSHITA, Shinji [JP]/[JP] (UsOnly)
  • TANUMA, Toshihiro [JP]/[JP] (UsOnly)
  • NAKAGAWA, Hideki [JP]/[JP] (UsOnly)
Inventors
  • SHIMODA, Hiroshi
  • WAKABAYASHI, Hirokazu
  • KINOSHITA, Shinji
  • TANUMA, Toshihiro
  • NAKAGAWA, Hideki
Agents
  • SENMYO, Kenji
Priority Data
2006-16106309.06.2006JP
2007-01250823.01.2007JP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PROCESS FOR PRODUCING MEMBRANE/ELECTRODE ASSEMBLY FOR POLYMER ELECTROLYTE FUEL CELLS
(FR) PROCÉDÉ DE FABRICATION D'UN ENSEMBLE MEMBRANE/ÉLECTRODE POUR DES PILES À COMBUSTIBLE À ÉLECTROLYTE POLYMÈRE
Abstract
(EN)
A process is provided whereby a membrane/electrode assembly for polymer electrolyte fuel cells whereby a high output voltage is obtainable within a wide range of current densities. A process for producing a membrane/electrode assembly 1 comprising a first electrode 10 having a first catalyst layer 12 and a first gas diffusion layer 14, a second electrode 20 having a second catalyst layer 22 and a second gas diffusion layer 24, and an electrolyte membrane 30, wherein the first gas diffusion layer 14, a first intermediate having the first catalyst layer 12 formed on the surface of the electrolyte membrane 30 by coating followed by annealing, and a second intermediate having the second catalyst layer 22 formed on the surface of the second gas diffusion layer 24 by coating, are bonded, so that the first catalyst layer 12 is located between the first gas diffusion layer 14 and the electrolyte membrane 30, and the second catalyst layer 22 is located between the second gas diffusion layer 24 and the electrolyte membrane 30.
(FR)
L'invention propose un procédé de fabrication d'un ensemble de membrane/électrode pour des piles à combustible à électrolyte polymère dans lesquelles une tension de sortie élevée peut être obtenue à l'intérieur d'une large plage de densités de courant. L'invention concerne un procédé de fabrication d'un ensemble membrane/électrode 1 comportant une première électrode 10 ayant une première couche de catalyseur 12 et une première couche 14 de diffusion des gaz, une seconde électrode 20 ayant une seconde couche de catalyseur 22 et une seconde couche 24 de diffusion des gaz, et une membrane d'électrolyte 30. La première couche 14 de diffusion desgaz, un premier intermédiaire comportant la première couche de catalyseur 12 formée sur la surface de la membrane d'électrolyte 30 par application d'un revêtement suivi d'un recuit et la second intermédiaire comportant la seconde couche de catalyseur 22 formée sur la surface de la seconde couche 24 de diffusion des gaz par application en revêtement sont liées, de telle sorte que la première couche de catalyseur 12 est située entre la première couche 14 de diffusion des gaz et la membrane d'électrolyte 30, et la seconde couche de catalyseur 22 est située entre la seconde couche 24 de diffusion des gaz et la membrane d'électrolyte 30.
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