The present disclosure relates to a fuel cell system including a fuel cell stack, a humidifier configured to humidify air, which is to be supplied to the fuel cell stack, by means of moist air discharged from the fuel cell stack, a cleaning water supply li...

To provide a solid oxide fuel cell in which the reformer is compact but is capable of supplying an appropriate quantity of fuel. The present invention is a solid oxide fuel cell (1) for generating electricity using fuel reformed by a reformer (20) and air,...