METHOD OF MANUFACTURING MEMBRANE-ELECTRODE ASSEMBLY AND REINFORCED TYPE ELECTROLYTE MEMBRANE FOR POLYMER ELECTROLYTE FUEL CELL, AND MEMBRANE-ELECTRODE ASSEMBLY AND REINFORCED TYPE ELECTROLYTE MEMBRANE OBTAINED BY THE MANUFACTURING METHOD

摘要

PPROBLEM TO BE SOLVED: To obtain a membrane-electrode assembly of a polymer electrolyte fuel cell that has a high power generation efficiency by manufacturing the membrane electrode assembly A in the polymer electrolyte fuel cell in a state that no boarder exists between an electrolyte membrane 1 and an electrode catalyst layer 6. PSOLUTION: On a porous reinforced membrane 30, electrolyte particles 2, electrolyte particulates 3, and electrode catalyst particles 4 or their mixture 5 are coated to prepare a laminate 10A. The laminate 10A is heated between heat board plates 21, 22, to make the electrolyte particles 2 and the electrolyte particulates 3 melted, and the molten electrolyte is impregnated into the porous reinforced membrane 30 to make the reinforced type electrolyte membrane, and by the molten electrolyte, the reinforced electrolyte membrane and the electrode catalyst layer 6 including the electrode catalyst particles 4 are connected and integrated into a state that no boarder exists between the layers to make the membrane electrode assembly A1. PCOPYRIGHT: (C)2007,JPO&INPIT