Patent ID: 8367259
Filing Date: 2013-02-05
Classification: H01M,Y02E

Abstract:
1. A fuel cell system, comprising: a fuel cell that generates an electric power using a fuel gas supplied to an anode thereof and air supplied to a cathode thereof; an exhaust mechanism that is connected to a downstream end of an anode gas flow channel and has an exhaust mode in which a substantially smaller amount of gas than the amount of fuel gas consumed in said anode gas flow channel is discharged to the outside of the system; output controlling means programmed to increase, based in part on a diffusion rate of an impurity in the anode gas flow channel, the output current value of the fuel cell to a predetermined value after a request to stop electric power generation by said fuel cell; and discharge controlling means programmed to set said exhaust mechanism in the exhaust mode before or when said output controlling means increases the output current value.