SYSTEM AND METHOD FOR RECOVERING PERFORMANCE OF FUEL CELL

摘要

A method for recovering performance of a degraded polymer electrolyte fuel cell stack through electrode reversal. In detail, oxide films formed on the surface of platinum of a cathode is removed through an electrode reversal process that creates a potential difference between an anode and the cathode by supplying air to the anode instead of hydrogen and supplying a fuel to the cathode instead of air, thus rapidly recovering the performance of a degraded polymer electrolyte fuel cell stack.

主权项

1. A method for recovering performance of a fuel cell stack, the method comprising:
creating a potential difference between an anode and a cathode by supplying air to the anode of the fuel cell stack instead of hydrogen and supplying a fuel to the cathode instead of air; supplying coolant to the anode and the cathode so that droplets are retained in the fuel cell stack; and shutting down the fuel cell stack for a predetermined time.