Patent ID: 9276275
Filing Date: 2016-03-01
CPC Classification: H01M,Y02E

Claim Text:
1. A fuel cell system comprising: a fuel cell having an anode passage through which fuel gas is supplied to an anode and a cathode passage through which oxidant gas is supplied to a cathode; a fuel gas inlet passage through which the fuel gas is injected into the fuel cell; a fuel off-gas outlet passage through which fuel off-gas is discharged from the fuel cell; a fuel-gas-pressure-adjusting-and-supplying unit which is disposed on the fuel gas inlet passage and is configured to adjust a pressure of the fuel gas to supply the fuel gas to the anode passage; an anode-passage-gas-replacement-determining unit which is configured to determine, at start-up of the fuel cell, whether or not inner gas of the anode passage is replaced with the oxidant gas; and a high-pressure-fuel-gas-supply-controlling unit which is configured to control a supply of the fuel gas to the anode passage while setting a target pressure of the fuel gas supplied to the anode passage by using the fuel-gas-pressure-adjusting-and-supplying unit to be higher than a pressure when the inner gas of the anode passage is not replaced with the oxidant gas if the anode-passage-gas-replacement-determining unit determines at start-up of the fuel cell that the inner gas of the anode passage is replaced with the oxidant gas.