| 摘要 |
A fuel cell stack FS formed by stacking unit cells C, and the unit cell C is formed by sandwiching a membrane electrode assembly 1 between a pair of separators 2 and 2 having depression parts 2B and protrusion parts 2A, wherein a cooling liquid flow space F is formed between the unit cells 2 and 2, a displacement absorption member 10, which absorbs displacement between the unit cells C, is disposed in the flow space F, the displacement absorption member 10 includes a spring function part 10B having a free end J and a fixed end K, and an intrusion prevention means 2A and 5, which prevents the free end J of the spring function part 10B from intruding into the depression part 2A, is provided. A displacement absorption function between the unit cells C is well maintained, while size reduction of the fuel cell stack is achieved. |
