| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell stack preventing voltage drop when the gas flow direction is reversed, or gas flow rate is changed by switching a gas passage, during the operation of the fuel cell stack. <P>SOLUTION: The fuel cell stack is equipped with a first manifold, a second manifold, and each of the first manifold and the second manifold is equipped with a gas supply passage having a switching means and a gas exhaust passage, having a switching means. The fuel cell stack is equipped with the first manifold equipped with the gas supply passage, the second manifold equipped with the gas exhaust passage having the switching means at one end and the gas exhaust passage, equipped with the gas exhaust passage having the switching means at the other end, and a third manifold, equipped with the gas exhaust passage having the switching means. <P>COPYRIGHT: (C)2007,JPO&INPIT |
