SOLID POLYMER FUEL CELL AND METHOD FOR ACTIVATING SAME

摘要

A solid polymer fuel cell has a catalyst layer including a nanohorn aggregate as a catalyst carrier, catalyst metal supported on the catalyst carrier, and a polymer electrolyte coating the catalyst carrier. Voltage higher than the open circuit voltage of the solid polymer fuel cell is applied to the catalyst layer so as to increase triphasic interfaces at which the reaction gas reduced at the catalyst layer, the catalyst metal, and the polymer electrolyte meet.