METHOD FOR LOWERING FUEL CELL CATHODE ACTIVATING OVERVOLTAGE

摘要

PROBLEM TO BE SOLVED: To provide a method for lowering a fuel cell cathode activating overvoltage, which can boost PEFC cell voltage by lowering the cathode activating overvoltage. SOLUTION: A high-molecular compound having high oxygen solubility is included in a cathode catalyst layer of a solid polymer fuel cell, so that oxygen concentration in the cathode catalyst surface is increased and the cathode reaction overvoltage therein is lowered.