| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell that is safe and of a long life by maintaining the surrounding of a positive electrode (hydrogen electrode) and a negative electrode in non-active state at starting and shut-down in the polymer electrolyte fuel cell in the applicable field such as vehicle use in which starting and shut-down are repeated incessantly. <P>SOLUTION: The fuel cell system comprises a fuel cell stack containing one or more fuel cell shells, an electric load that can be connected to the fuel cell selectively and electrically, a switch that operates on and off so as to electrically connect or intercept the electric load with the fuel cell stack, and a control unit that generates a control signal for making on and off the above switch and, when the fuel cell stack is shut down, generates a control signal for making on the switch so that the electricity generated in the fuel cell stack may be consumed by the above electric load. <P>COPYRIGHT: (C)2004,JPO |
