Polymer electrolyte membrane with functionalized nanoparticles

Details Polymer electrolyte membrane with functionalized nanoparticles Polymer electrolyte membrane with functionalized nanoparticles

H - Electricity

01

M

H01M 8/10 (2006.01)

Patent

CA 2679868

The present invention relates to a polymer electrolyte membrane for fuel cells, comprising a polymer matrix made of at least one basic polymer and one or more dosing agents, wherein particles comprising ionogenic groups and having an average particle diameter in the nano range are embedded in the polymer matrix, and the particles comprising ionogenic groups are distributed homogeneously in the polymer matrix in a concentration of less than 50% relative to the mass of the polymer matrix. The invention further relates to the production and use of said polymer electrolyte membranes, in particular in high-temperature fuel cells.

L'invention concerne une membrane polyélectrolyte pour piles à combustible, comprenant une matrice polymère formée d'au moins un polymère basique et d'un ou de plusieurs agents dopants, caractérisée en ce que des particules renfermant des groupes ionogènes, présentant un diamètre moyen de particules d'ordre nanométrique sont encastrées dans la matrice polymère, et en ce que les particules renfermant des groupes ionogènes sont réparties de façon homogène dans la matrice polymère, à une concentration inférieure à 50%, par rapport à la masse de la matrice polymère. L'invention concerne en outre la production de ladite membrane, ainsi que son utilisation, en particulier pour des piles à combustible à haute température.

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