POLYELECTROLYTE FILM, AND FILM ELECTRODE JUNCTION BODY AND FUEL CELL USING THE SAME

摘要

PPROBLEM TO BE SOLVED: To provide a means for ensuring a mechanical strength (in particular, size stability in swelling) of a polyelectrolyte film. PSOLUTION: A polyelectrolyte film includes a first electrolyte layer including a first ion-conducting electrolyte and a second electrolyte layer disposed on both surfaces of the first electrolyte layer. Then, the second electrolyte layer contains a second ion-conducting electrolyte that is different from the first ion-conducting electrolyte and has water insolubility. Furthermore, the first electrolyte layer is disposed in an enclosed region formed by the two second electrolyte layers. PCOPYRIGHT: (C)2011,JPO&INPIT