Improved polymer electrolyte membranes from mixed dispersions

Details Improved polymer electrolyte membranes from mixed dispersions Improved polymer electrolyte membranes from mixed dispersions

H - Electricity

01

M

H01M 8/10 (2006.01) C08J 5/22 (2006.01)

Patent

CA 2375463

A polymer electrolyte membrane is provided comprising an intimate mixture of an ionomeric polymer and a structural film-forming polymer. A method of making the polymer electrolyte membrane is also provided, comprising the step of coalescing at least one of an ionomeric polymer and a structural film-forming polymer in a mixture of the two resulting from a mixed dispersion and optionally crosslinking one or both. The polymers used may be fluoropolymers and the ionomeric polymer may contain pendent sulfonic acid groups.

L'invention concerne une membrane d'électrolyte polymère contenant un mélange intime d'un polymère ionomère et d'un polymère feuillogène structurel. Cette invention concerne également un procédé de fabrication de la membrane d'électrolyte polymère, consistant à faire fondre au moins un polymère ionomère et un polymère feuillogène structurel dans un mélange des deux résultant d'une dispersion mélangée, et à réticuler facultativement un composé ou les deux. Les polymères utilisés peuvent être des fluoropolymères, et le polymère ionomère peut contenir des groupes d'acides sulfoniques pendants.

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