| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel cell capable of preventing a separator from cracking securing an area where the separator is in contact with MEA, and keeping the fuel cell compact. SOLUTION: (1) This fuel cell has an anode side separator 18A1 having a fuel gas passage 27 on its one surface and a coolant passage 26 on the other, and a cathode side separator 18A2 having an oxidizing gas passage 28 on its one surface and the coolant passage 26 on the other. In this fuel cell, the withstand pressure of the cathode side separator 18A2 is adjusted to be bigger than that of the anode side separator 18A1 . (2) The thickness th of the anode side separator 18A1 at the bottom surface of the fluid passage is made mutually different from the thickness ta of the cathode side separator 18A2 at the bottom surface of the fluid passage. (3) They are set to ta<th. |
