| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain an activation effect caused by reduction of a platinum catalyst of a cathode in all cells when supply of an oxidant is stopped in a fuel cell controlled at constant voltage. <P>SOLUTION: In a state supplying fuel during the operation of a stack, supply of the oxidant is temporarily suspended, and set voltage of the constant voltage control is lowered simultaneously with or immediately before the suspension of the supply of the oxidant. <P>COPYRIGHT: (C)2008,JPO&INPIT |
