Gas diffusion layer for fuel cell

H - Electricity – 01 – M

Patent

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Details

H01M 4/86 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2760631

Disclosed is a gas diffusion layer to be used for a fuel cell wherein the gas diffusion layer is provided with a means capable of further improving cell startability in a low-temperature environment (startability at a degree below zero). Specifically disclosed is a gas diffusion layer for a fuel cell wherein the pore volume of micropores is 2.0×10-4 cm3/cm2 or more.

L'invention concerne une couche de diffusion de gaz utilisée pour une pile à combustible; la couche de diffusion de gaz est dotée d'un moyen capable d'améliorer encore l'aptitude au démarrage de la pile dans un environnement basse température (aptitude au démarrage au-dessous de zéro degré). Plus précisément, l'invention concerne une couche de diffusion de gaz pour une pile à combustible dans laquelle le volume des micropores est d'au moins 2,0×10-4 cm3/cm2.

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