METHOD FOR REDUCING DETERIORATION OF FUEL CELL

摘要

PROBLEM TO BE SOLVED: To provide a method for reducing catalyst dissolution in a cathode of a membrane electrode assembly fuel cell.SOLUTION: A method for reducing catalyst dissolution in a cathode of a membrane electrode assembly fuel cell comprises the steps of: (a) preparing a membrane electrode assembly containing an anode, a cathode, and a polymer electrolyte membrane interposed between the anode and the cathode; (b) assembling a fuel cell by using the membrane electrode assembly; (c) applying fluid containing oxidant to the cathode of the membrane electrode assembly; (d) applying fluid containing fuel to the anode of the membrane electrode assembly; and (e) supplying a sufficient amount of reducing agent to the cathode to maintain average open circuit voltage of the cathode at less than about 0.98 V.SELECTED DRAWING: Figure 1