Solid polymer membrane for fuel cell with polyamine imbibed...

H - Electricity – 01 – M

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H01M 8/10 (2006.01) B01D 67/00 (2006.01) B01D 69/14 (2006.01) B01D 71/32 (2006.01) B01J 35/06 (2006.01) C08J 5/22 (2006.01) H01M 4/86 (2006.01) H01M 4/88 (2006.01)

Patent

CA 2462814

The present invention provides for a solid polymer electrolyte membrane having a fluorinated ionomer having imbibed therein a non-fluorinated, non-ionomeric polymer, wherein the fluorinated ionomer comprises at least 6 mole % of monomer units having a fluorinated pendant group with a terminal ionic group, and wherein the non-ionomeric polymer is selected from the group consisting of a polyamine, a polyvinyl amine, and derivatives thereof. The invention also provides a catalyst coated membrane and a fuel cell having this solid polymer electrolyte membrane.

L'invention concerne une membrane électrolytique polymère solide présentant un ionomère fluoré imbibé d'un polymère non fluoré, non ionomère; le ionomère fluoré comprenant au moins 6 % molaire d'unités monomères qui présentent un groupe latéral fluoré possédant un groupe ionique terminal; le polymère non ionomère étant sélectionné dans le groupe comprenant une polyamine, une polyvinyl amine, et des dérivés de celles-ci. L'invention concerne également une membrane revêtue d'un catalyseur et un pile à combustible présentant ladite membrane électrolytique polymère solide.

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