Polymer electrolyte fuel cell

H - Electricity – 01 – M

Patent

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Details

H01M 8/02 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2534431

Durability of a solid polymer fuel cell is improved by improving oxidation resistance and durability of the electrolyte membrane with a low-cost method. A solid polymer fuel cell comprising a membrane electrode assembly wherein an electrode is joined to each side of a solid polymer electrolyte membrane is characterized in that a phosphate containing at least one metal element selected from rare earth elements, Ti, Fe, Al and Bi is fixed to at least one of the solid polymer electrolyte membrane and electrodes.

Selon l'invention, la durabilité d'une cellule électrochimique à polymère solide est augmentée par amélioration de la résistance à l'oxydation et de la durabilité de la membrane électrolytique au moyen d'un procédé économique. Une cellule électrochimique à polymère solide comportant un ensemble d'électrodes à membrane, dans lequel une électrode est reliée à chaque côté d'une membrane électrolytique à polymère solide, est caractérisée en ce qu'un phosphate contenant au moins un élément métallique, choisi parmi les éléments des terres rares Ti, Fe, Al et Bi, est fixé à la membrane électrolytique à polymère solide et/ou aux électrodes.

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