FUEL CELL SYSTEM

摘要

A fuel cell system including a plurality of single-cell units (30), each of which include an electrolyte membrane (31) disposed between an anode (33) and a cathode (32) and which generate electric power by a reaction of a fuel gas in the anode and an oxidizer gas in the cathode, and a fuel cell (1) in- which the plurality of single-cell units are stacked. A plurality of voltage measurement devices (22) measure the voltages of the single-cell units, respectively. A control unit (20) determines the humidification state of the fuel cell based on the voltage of a second single-cell unit wherein when the voltage of the second single-cell is equal to or lower than an insufficient-humidification-determining voltage which is higher than the predetermined voltage the control unit determines that humidification of the fuel cell is insufficent, disposed in the vicinity of a first single-cell unit, the first single-cell unit having a voltage that is equal to or lower than a predetermined voltage.