| 摘要 |
PROBLEM TO BE SOLVED: To reduce ion conduction resistance of polymer electrolyte and substance forming an interface with the polymer electrolyte (e.g. catalyst) in a solid polymer fuel cell and to acquire high generating efficiency. SOLUTION: The surface of the substance forming the interface with the polymer electrolyte (e.g. substance to support a material 3 having catalytic activity on a carbon black particle surface 1) is made hydrophilic by plasma irradiation and maceration in aqueous solution including hydrogen peroxide or mineral acid, and a section contributing to the ionic conduction of the polymer electrolyte (e.g. a phase 2a of sulfonic acid group) is directed in the invention. |
