Fuel cell with internal reformer and method for its operation

H - Electricity – 01 – M

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H01M 8/06 (2006.01) H01M 8/10 (2006.01) H01M 8/04 (2006.01)

Patent

CA 2385622

A fuel cell which can be a direct methanol fuel cell or a hydrogen fuel cell according to the operating methods. An internal reformer layer is introduced into each fuel cell unit. The reforming reaction takes place at said reformer layer when the pressure and/or temperature is/are sufficiently high. The fuel being methanol/water is converted to hydrogen during said reaction. The arrangement of the reformer-catalyst layer within the cell guarantees that the heat of the anode is used for reforming and that the anode is cooled by means of the endothermic reforming reaction.

Une pile à combustible qui peut fonctionner comme une pile à combustible directe à méthanol et comme une pile à combustible à hydrogène. A cet effet, une couche de reformeur interne est introduite dans chaque ensemble pile à combustible, couche sur laquelle, lorsque la pression et/ou la température sont suffisamment élevées, la réaction de reformage se produit, le combustible méthanol/eau étant converti en hydrogène. Le fait que la couche de catalyseur reformeur est placée à l'intérieur de la pile garantit que la chaleur de l'anode est utilisée pour le reformage, et, inversement, que l'anode est refroidie par la réaction de reformage endothermique.

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