An ion-conducting membrane for electrochemical applications is based on aromatic polyimide or copolyimide polymers. An ion-conducting membrane for electrochemical applications is based on aromatic polyimide or copolyimide polymers comprising units of formu...

A proton conducting membrane for electrochemical applications, especially for fuel cells, from a polymer based on a polymer with an aromatic ring but not a vinyl polymer, where the polymer with the aromatic ring has phosphonic acid groups, which are covale...

Inorganically modified membrane consists of an organic sulfonated polymer and an inorganic phase made of oxides of silicon, organically modified silicon, titanium and/or zirconium. The oxides can be partially replaced by phosphates.