Cooling and wetting polymer-electrolyte fuel cells

Details Cooling and wetting polymer-electrolyte fuel cells Cooling and wetting polymer-electrolyte fuel cells

H - Electricity

01

M

H01M 8/04 (2006.01)

Patent

CA 2286701

A polymer-electrolyte fuel cell (1) using air as oxidizing agent, under low overpressure, and different combustion gases, in particular hydrogen, is cooled by feeding liquid water directly into the gas passages (5, 9) of the combustion air and possibly of the combustible gas. The water introduced into the gas passages also serves to wet the solid polymer electrolyte (4).

Une pile à combustible à polyélectrolyte (1) utilisant l'air comme agent d'oxydation, sous faible surpression, et différents gaz de combustion, en particulier l'hydrogène, est refroidie par alimentation d'eau liquide directement dans les arrivées de gaz (5, 9) de l'air de combustion et, éventuellement, du gaz de combustion. L'eau introduite dans les arrivées de gaz sert à même temps à l'humidification du polyélectrolyte solide (4).

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