| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell system capable of deciding whether a fuel cell is in a dry-up state or not in its early stages. <P>SOLUTION: The fuel cell system includes: the fuel cell 10 formed by stacking a plurality of cells 100 each having a membrane electrode assembly formed by assembling an anode and a cathode on both surfaces of an electrolyte membrane 101, a fuel gas passage 105 installed on the anode side of a pair of separators 104 between which the membrane electrode assembly is interposed, and an oxidant gas passage 106 installed on the cathode side; a dew-point detector or the like 16 detecting dew-point temperature or the like in the fuel gas passage 105; and an operation state deciding means 40 deciding whether the operation state of the fuel cell 10 is in a dry-up state or not. The dew-point detector or the like 16 is arranged in the vicinity of a portion corresponding to a portion 106a introducing oxidant gas into the oxidant gas passage in at least the fuel gas passage 105, and the operation state deciding means 40 decides that the operation state of the fuel cell 10 is in a dry-up state based on a detected value of the dew-point detector or the like 16. <P>COPYRIGHT: (C)2010,JPO&INPIT |
