Electrolyte membrane and fuel cell

H - Electricity – 01 – M

Patent

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Details

H01M 8/02 (2006.01) C08J 9/36 (2006.01) C08L 23/00 (2006.01) H01B 1/06 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2560377

[PROBLEMS] To provide, in an electrolyte film for a fuel cell having a structure wherein the inside of pores of a porous substrate is filled with an electrolytic polymer, an electrolyte film exhibiting fuel cell performance capabilities at the highest level among those films having the same film thickness and the same porosity of a substrate and having the same amount of an electrolyte packed in the porous substrate. [MEANS FOR SOLVING PROBLEMS] A polymer electrolyte film wherein pores of a porous substrate are filled with an electrolytic polymer, characterized in that it exhibits a ratio of the maximum value to the minimum value (the maximum value/the minimum value) of the ion conductivity in the range of 1 to 1.5, when the ion conductivity is measured in the plane direction.

[PROBLEMES] Fournir, dans un film électrolyte pour une cellule d'essence ayant une structure dans laquelle l'intérieur des pores d'un substrat poreux est rempli d'un polymère électrolytique, un film électrolyte affichant des performances de cellule d'essence au plus haut niveau parmi les films ayant la même épaisseur de film et la même porosité qu'un substrat et ayant la même quantité d'un électrolyte dans le substrat poreux. [MOYEN DE RESOUDRE LES PROBLEMES] Un film électrolyte polymère dans lequel les pores d'un substrat poreux sont remplis d'un polymère électrolytique, caractérisé par le fait qu'il affiche un rapport de la valeur maximale à la valeur minimale (la valeur maximale/la valeur minimale) de la conductivité des ions dans la gamme de 1 à 1,5, lorsque la conductivité des ions est mesurée dans la direction plane.

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