Fuel cell having stack structure

Details Fuel cell having stack structure Fuel cell having stack structure

H - Electricity

01

M

H01M 8/24 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2486216

A fuel cell having a stack structure is provided. The fuel cell includes plural unit cells each of which includes an anode and a cathode which are provided on both sides of a predetermined electrolyte membrane, and a catalytic layer which is provided in at least one of the anode and the cathode, and which supports a catalyst for promoting an anode reaction or a cathode reaction, the plural unit cells being stacked to form a stack structure. In the fuel cell, the plural unit cells include a unit cell including a catalyst layer supporting a catalyst which is different from catalysts supported by catalyst layers of other unit cells in at least one of type, weight, and specific surface area.

La présente concerne une pile à combustible à structure d'empilement. La pile à combustible comprend une pluralité de cellules unitaires, dont chacune se compose d'une anode et d'une cathode sur chaque côté d'une membrane électrolyte prédéterminée, puis d'une couche catalytique présente sur au moins un des anodes ou une des cathodes, formant un catalyseur pour la production d'une réaction de l'anode ou de cathode, la pluralité des cellules unitaires étant par ailleurs dans une structure d'empilement. Dans cette pile à combustible, la pluralité de cellules unitaires comprend une cellule renfermant un catalyseur qui diffère des catalyseurs formés par les couches catalytiques d'autres cellules unitaires au moins sur les plants du genre, du poids et de la surface spécifique.

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