Proton-conducting electrolyte membrane with low methanol...

Details Proton-conducting electrolyte membrane with low methanol... Proton-conducting electrolyte membrane with low methanol...

C - Chemistry, Metallurgy

08

J

C08J 7/16 (2006.01) C08J 5/22 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2478530

The invention relates to a proton conducting electrolyte membrane obtained by means of a method comprising the following steps; A) swelling a polymer film with a liquid comprising sulphonic acid containing vinyl and B) polymerisation of the sulphonic acid containing vinyl present in the liquid used in step A). The inventive membrane can be applied in a varied manner on account of the excellent chemical and thermal properties thereof and is particularly suitable for use as a polymer-electrolyte-membrane (PEM) in PEM-fuel cells.

Membrane électrolytique conductrice de protons qui peut être obtenue par un procédé consistant (A) à faire gonfler une feuille polymère à l'aide d'un liquide contenant de l'acide sulfonique renfermant du vinyle et (B) à polymériser l'acide sulfonique renfermant du vinyle présent dans le liquide utilisé à l'étape (A). En raison de ses excellentes propriétés chimiques et thermiques, la membrane selon la présente invention peut être utilisée dans de nombreuses applications et convient particulièrement en tant que membrane polymère (PEM) dans les piles à combustibles PEM.

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