| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell system correctly determining deterioration of an electrolyte film. <P>SOLUTION: A voltage of the power generated by a power generating fuel cell stack is detected by re-circulating exhaust fuel gas exhausted from an anode through a circulation flow passage, and by making pressure at a cathode higher than the pressure at an anode. In the case the detected voltage is lower than a prescribed voltage, the voltage of generated power is detected by increasing flow volume of hydrogen and air, and in the case the above detected voltage is lower than a prescribed voltage, it is determined that the electrolyte is deteriorated. <P>COPYRIGHT: (C)2007,JPO&INPIT |
