| 摘要 |
<P>PROBLEM TO BE SOLVED: To reliably absorb thermal displacement caused by rapid temperature rise of a fuel cell and prevent deformation of a stack as much as possible. <P>SOLUTION: A fuel cell stack 10 comprises a first separator 28a. The first separator 28a comprises: a first sandwich portion 88 that sandwiches a membrane electrode assembly 26; a fuel gas supply portion 84 where a fuel gas supply communication hole 34 is formed in a stacked direction; and a first bridging portion 86. A second separator 28b comprises: a second sandwich portion 94 that sandwiches the membrane electrode assembly 26; an oxidant gas supply portion 90 where an oxidant gas supply communication hole 62 is formed; and a second bridging portion 92. The fuel gas supply portion 84, the oxidant gas supply portion 90, the first sandwich portion 88, and the second sandwich portion 94 are provided with a first displacement absorbing mechanism 96, a second displacement absorbing mechanism 98, a third displacement absorbing mechanism 130, and a fourth displacement absorbing mechanism 132, respectively, all for absorbing displacement caused in the fuel cell stack 10. <P>COPYRIGHT: (C)2012,JPO&INPIT |
