POLYELECTROLYTE MATERIAL, POLYELECTROLYTE MEMBRANE USING IT, MEMBRANE ELECTRODE COMPLEX, AND POLYELECTROLYTE FUEL CELL

摘要

PPROBLEM TO BE SOLVED: To provide a polyelectrolyte material which has low fuel crossover and good adhesion to electrodes; and to provide a polyelectrolyte membrane, a membrane electrode complex, and a polyelectrolyte fuel cell which realize high-power output and high enery capacity. PSOLUTION: The polyelectrolyte material is composed of hydrocarbon polymer containing at least ionic groups. The polymer has characteristics of enough flexibility in a moisture state and enough smallness of swelling in fuel. The polyelectrolyte membrane, the membrane electrode complex, and the polyelectrolyte fuel cell of this invention are comprised of this polyelectrolyte material. PCOPYRIGHT: (C)2006,JPO&NCIPI