Patent ID: 8357473

Claim:
A fuel cell system, comprising: a controller; and a fuel cell connected to the controller and adapted to generate an electric power by power generation via electrically chemically reacting a fuel gas supplied via a fuel gas passage with an oxidizer gas supplied via an oxidizer gas passage, wherein, after the fuel cell system is instructed to stop, the controller is configured to cause the following operations: switching to a power generation condition for increasing a takeout quantity of a moisture generated in the fuel cell after the fuel cell system is instructed to stop, continuing the power generation of the fuel cell for a first predetermined time under the power generation condition for increasing the takeout quantity of the moisture generated in the fuel cell after the switching to the power generation condition after the fuel cell system is instructed to stop, stopping the power generation, wherein the stopping of the power generation is performed after the continuing of the power generation of the fuel cell, and purging one of the oxidizer gas passage of the fuel cell and a combination of the oxidizer gas passage and the fuel gas passage of the fuel cell for a second predetermined time, wherein the purging is performed after the stopping of the power generation.