EVALUATION METHOD AND EVALUATION DEVICE FOR CHEMICAL DEGRADATION OF FUEL-CELL POLYMER ELECTROLYTE MEMBRANE

摘要

PPROBLEM TO BE SOLVED: To provide an evaluation method and an evaluation device for a fuel-cell polymer electrolyte membrane that allow accurate evaluation of chemical degradation properties of a fuel-cell polymer electrolyte membrane under conditions close to the use environment of a fuel cell. PSOLUTION: The evaluation method for a fuel-cell polymer electrolyte membrane is used for measuring emission intensity due to reaction between radicals and a polymer electrolyte membrane. The radicals are generated as follows. At least an electrode catalyst is in contact with and fixed onto at least one face of a polymer electrolyte membrane. An oxidant is brought into contact with one face of the polymer electrolyte membrane. Fuel is brought into contact with the other face of the polymer electrolyte membrane. The evaluation device for a fuel-cell polymer electrolyte membrane is used for measuring emission intensity due to reaction between radicals, generated by the following means, and a polymer electrolyte membrane. The device is provided with a means for bringing an oxidant into contact with one face of a polymer electrolyte membrane, in which an electrode catalyst is in contact with and fixed onto at least its one face, and a means for bringing fuel into contact with the other face of the polymer electrolyte membrane. PCOPYRIGHT: (C)2008,JPO&INPIT