Electrolyte membrane-electrode assembly and method for...

H - Electricity – 01 – M

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H01M 8/02 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2610424

The present invention is to provide an electrolyte membrane-electrode assembly which enables to effectively suppress corrosion of a cathode catalyst on start/stop, and decomposition of an electrolyte on OCV retention. The present invention is to provide an electrolyte membrane-electrode assembly which comprises a polymer electrolyte membrane, a cathode catalytic layer located at one side of the polymer electrolyte membrane, an anode catalytic layer located at the other side of the polymer electrolyte membrane, and a first gasket layer formed at the end part of the cathode catalytic layer so that area of the effective anode catalytic layer is made larger than area of the effective cathode catalytic layer.

La présente invention concerne un ensemble d'électrode à membrane électrolyte qui permet de supprimer efficacement la corrosion d'un catalyseur de cathode au démarrage/à l'arrêt, et la décomposition d'un électrolyte par rétention OCV. La présente invention concerne un ensemble d'électrode à membrane électrolyte qui comprend une membrane électrolyte polymère, une couche catalytique de cathode située sur un côté de la membrane électrolyte polymère, une couche catalytique d'anode située sur l'autre côté de la membrane électrolyte polymère, et une première couche de joint d'étanchéité placée à l'extrémité de la couche catalytique de cathode de sorte que l'aire effective de la couche catalytique d'anode soit plus large que l'aire effective de la couche catalytique de cathode.

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