ACID/BASE/INORGANIC POLYELECTROLYTE TYPE COMPOSITE MEMBRANE FOR FUEL CELL AND METHOD FOR PRODUCING THE SAME

摘要

Provided are a polyelectrolyte composite membrane for a fuel cell which lowers the penetration of a fuel material by modifying the surface of an ion conductive polymer electrolyte membrane, and a method for preparing the polyelectrolyte composite membrane. The polyelectrolyte composite membrane is an acid/base/inorganic polyelectrolyte membrane comprising an acidic polyelectrolyte membrane, a basic polymer and an inorganic material. Preferably the basic polymer is selected from the group consisting of polybenzimidazole, polyethyleneimine, polyaniline, poly(4-vinyl pyridine) and polypyrrole; and the inorganic material comprises zirconium phosphate or zirconium phosphate derivatives, and the zirconium phosphate or the zirconium phosphate derivatives has an alpha or gamma-form.