Fuel cell with nitrogen suppression

Details Fuel cell with nitrogen suppression Fuel cell with nitrogen suppression

H - Electricity

01

M

H01M 8/04 (2006.01)

Patent

CA 2693961

The invention provides a fuel cell, which includes: an electrolyte (23); an anode (22) that is placed on one side of the electrolyte (23) and has a fuel gas consumption surface on which fuel gas is consumed; a cathode (24) that is placed on the other side of the electrolyte (23); and a fuel gas passage (225n) having a first passage (14h) for distributing fuel gas to previously set regions on the fuel gas supply surface, a second passage (22) for supplying the distributed fuel gas to the regions, and a fuel gas supply portion (21n) for supplying fuel gas from the first passage (14h) to the second pas- sage (22). The fuel cell consumes most of the supplied fuel gas in the regions on the fuel gas consumption surface. A fuel gas passage (225n) has a fuel gas leakage suppression portion (14hg, 52n) for suppressing leakage of fuel gas between the first passage (14h) and the second passage (22).

L'invention concerne une pile à combustible comprenant : un électrolyte (23); une anode (22) qui est placée sur un côté de l'électrolyte (23) et a une surface de consommation de gaz combustible sur laquelle du gaz combustible est consommé; une cathode (24) placée sur l'autre côté de l'électrolyte (23); et un passage de gaz combustible (225n) ayant un premier passage (14h) pour distribuer du gaz combustible vers des régions précédemment établies sur la surface d'alimentation en gaz combustible, un second passage (22) pour amener le gaz combustible distribué vers les régions, et une partie d'alimentation en gaz combustible (21n) pour amener du gaz combustible du premier passage (14h) au second passage (22). La pile à combustible consomme la majeure partie du gaz combustible fourni dans les régions sur la surface de consommation de gaz combustible. Un passage de gaz combustible (225n) comprend une partie de suppression de fuite de gaz combustible (14hg, 52n) pour supprimer une fuite de gaz combustible entre le premier passage (14h) et le second passage (22).

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