A fuel cell including an electrolyte layer and a hydrogen...

Details A fuel cell including an electrolyte layer and a hydrogen... A fuel cell including an electrolyte layer and a hydrogen...

H - Electricity

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H01M 8/10 (2006.01) H01M 4/86 (2006.01) H01M 4/88 (2006.01) H01M 4/92 (2006.01) H01M 4/94 (2006.01) H01M 8/02 (2006.01)

Patent

CA 2548479

A fuel cell of the invention has a hydrogen permeable metal layer, which is formed on a plane of an electrolyte layer that has proton conductivity and includes a hydrogen permeable metal. The fuel cell includes a higher temperature zone and a lower temperature zone that has a lower temperature than the higher temperature zone. The hydrogen permeable metal layer includes a lower temperature area A corresponding to the lower temperature zone and a higher temperature area B corresponding to the higher temperature zone. The lower temperature area A and the higher temperature area B have different settings of composition and/or layout of components. This arrangement effectively prevents potential deterioration of cell performance due to an uneven distribution of internal temperature of the fuel cell including the hydrogen permeable metal layer.

Cette invention se rapporte à une pile à combustible qui comprend une couche de métal perméable à l'hydrogène, formée sur un plan d'une couche électrolytique qui est conductrice de protons et qui contient un métal perméable à l'hydrogène. Cette pile à combustible comporte une zone de température supérieure et une zone de température inférieure dont la température est plus basse que celle de la zone de température supérieure. La couche de métal perméable à l'hydrogène présente une surface de température inférieure (A) correspondant à la zone de température inférieure et une surface de température supérieure (B) correspondant à la zone de température supérieure. La surface de température inférieure (A) et la surface de température supérieure (B) ont des réglages différents de composition et/ou d'implantation des composants. Cet agencement empêche efficacement toute détérioration potentielle des performances de la pile due à une distribution inégale de la température interne de la pile à combustible contenant la couche de métal perméable à l'hydrogène.

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