Patent ID: 9520605
Filing Date: 2016-12-13
CPC Classification: H01M,Y02E,Y02T

Claim Text:
1. A fuel cell system comprising: a fuel cell including a membrane-electrode assembly in which electrodes, each having a catalyst layer, are arranged on both surfaces of a polymer electrolyte membrane; and a control apparatus programmed to control an output voltage of the fuel cell; wherein, if a target voltage of the fuel cell is set so as to be equal to or higher than a catalyst dissolution voltage at which a catalyst in the catalyst layer is dissolved and an amount of an oxide film formed on the catalyst layer is estimated to be less than a first predetermined amount, the control apparatus programmed to control the output voltage of the fuel cell so as to be equal to an oxide film formation voltage, being lower than the catalyst dissolution voltage, until the amount of the oxide film is estimated to be equal to or greater than the first predetermined amount, and then programmed to control the output voltage so as to be equal to the target voltage.