| 摘要 |
PROBLEM TO BE SOLVED: To properly seal a fuel cell body during non-use of a power supply, and protect a precious metal catalyst from being poisoned with carbon monoxide contained in residual gases. SOLUTION: A cutoff film 22 as a sealing means to internally seal a fuel cell body 6 is provided at the fuel gas inlet 2, the oxidant gas inlet 3, the fuel gas outlet 4 and the oxidant gas outlet 5 thereof, and the fuel cell body 6 is internally provided with a carbon monoxide combustion burner 14 as a carbon monoxide removal means. According to this construction, respective inlets and outlets are sealed with the cutoff film 22 during the non-use of a power supply, and carbon monoxide contained in residual gases is removed via the carbon monoxide combustion burner 14. thereby protecting a cell characteristic against deterioration. |
