| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable to determine accurately deterioration status of a fuel cell. <P>SOLUTION: The control part 30 carries out a purging operation to a fuel cell stack 1 at the shutdown process of the system. Then, the control part 30, corresponding to the purging operation, estimates the residual water amount in a catalyst layer of the fuel battery cells, and based on the estimation result, determines deterioration status of the fuel battery cells ( more concretely, catalyst layer). <P>COPYRIGHT: (C)2009,JPO&INPIT |
