Polymer electrolyte fuel cell

Details Polymer electrolyte fuel cell Polymer electrolyte fuel cell

H - Electricity

01

M

H01M 8/02 (2006.01) H01M 2/14 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2391587

A polymer electrolyte fuel cell comprising a cell having a solid polymer film, separators disposed on both sides of the cell so as to interpose the cell therebetween, and diffusion layers disposed between the cell and the separators and each having a substrate comprising an electrically conductive porous material and a slurry layer disposed on the substrate, wherein at least a part of each diffusion layer is provided with a gas barrier for.preventing the permeation of gas in a direction parallel to the major surface of the diffusion layer.

L'invention concerne une batterie de piles à combustible de type polymère solide, comprenant une pile dotée d'un film polymère solide, de séparateurs prenant ladite pile en sandwich, et de couches de diffusion placées entre la pile et les séparateurs respectifs. Chaque couche de diffusion comprend un substrat constitué d'un matériau conducteur poreux, une couche de bouillie formée sur ledit substrat, et une barrière gazeuse formée sur au moins une partie de couche de diffusion afin d'inhiber une perméation gazeuse vers le côté principal.

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