Fuel cell and separator for fuel cell

H - Electricity – 01 – M

Patent

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Details

H01M 8/04 (2006.01) H01M 4/86 (2006.01) H01M 8/24 (2006.01)

Patent

CA 2549668

A unit cell of a fuel cell includes a membrane electrode assembly and an anode side metal separator and a cathode side metal separator sandwiching the membrane electrode assembly. A plurality of first supply holes and a plurality of second supply holes extend through a channel unit of the anode side metal separator, and the channel unit connects a fuel gas supply passage and a fuel gas flow field. A fuel gas from the fuel gas supply passage flows into the first supply holes, and flows through an inlet connection channel. The fuel gas flows into the second supply holes connected to an end of the inlet connection channel. The fuel gas flows toward the side of the membrane electrode assembly, and then, the fuel gas is supplied to an anode.

L'invention porte sur une cellule de pile à combustible comprenant un ensemble électrode membranaire et un séparateur de métal côté anode, ainsi qu'un séparateur de métal côté cathode entourant l'électrode membranaire. Une pluralité d'orifices d'alimentation primaires et d'orifices d'alimentation secondaires passent dans une unité de canal du séparateur de métal côté anode et l'unité de canal est reliée à un passage d'alimentation en gaz combustible et à un champ de flux de gaz combustible. Un gaz combustible provenant du passage d'alimentation en gaz combustible passe dans les orifices d'alimentation primaires et circule dans un canal d'amenée des gaz. Le gaz combustible circule dans les orifices d'alimentation secondaires reliés à une extrémité du canal d'amenée des gaz. Il se dirige vers le côté de l'ensemble électrode membranaire et, enfin, parvient à une anode.

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