| abstract |
The invention relates to a proton-conducting membrane, a process for its production and its use. The proton-conductive, flexible electrolytic membrane for a fuel cell, which is impermeable to the reaction components of the fuel cell reaction, comprises a permeable, flexible, perforated polymer fiber carrier, the carrier being permeated with a proton-conducting material which is suitable for selectively conducting protons through the membrane. DOLLAR A The membrane according to the invention represents a new class of solid proton-conducting membranes. The basis is a porous and flexible carrier which has polymer fibers, preferably a polymer fleece. This is infiltrated with a proton-conducting material, the membrane is then dried and the proton-conducting material is solidified into a proton-conducting material, preferably a proton-conducting gel, so that a permeable, proton-conducting membrane is obtained in the end. The electrolyte membrane remains flexible and can easily be used as a membrane in a fuel cell. |