| 摘要 |
PROBLEM TO BE SOLVED: To provide: a solid electrolyte fuel cell good in bondability between an electrode and a solid electrolyte in a high temperature operation, improved in output, and suppressed in breakage; and a fuel cell stack.SOLUTION: A solid electrolyte fuel cell comprises a support 1, an intermediate layer 2, an air electrode layer 3 and a solid electrolyte layer 4 which are laminated in the order. A cell having a structure where a fuel electrode layer is laminated on the electrolyte layer 4 and the electrolyte layer 4 is sandwiched with the air electrode layer 3 and the fuel electrode layer is constituted. The cell has the intermediate layer 2 between the support 1 and the electrode layer 3. The temperature change of the thermal expansion coefficient of the intermediate layer 2 is similar or same to the temperature change of the thermal expansion coefficient of the solid electrolyte layer 4. A fuel cell stack is obtained by stacking the solid electrolyte fuel cells. |
