| 摘要 |
PROBLEM TO BE SOLVED: To provide a solid oxide fuel cell capable of suppressing the occurrence of separation in an interface between an air electrode active layer and an air electrode collector layer.SOLUTION: A solid oxide fuel cell 10 comprises an air electrode 50, a fuel electrode 20, and a solid electrolyte layer 30. The air electrode 50 has an air electrode collector layer 51 and an air electrode active layer 52. The air electrode collector layer 51 contains, as its main constituent, a perovskite type composite oxide represented by a general formula ABOand including at least La in an A site and including at least Ni, Fe, and Cu in a B site. The air electrode active layer 52 contains, as its main constituent, a perovskite type composite oxide represented by a general formula ABOand including at least one of La and Sr in the A site. The air electrode collector layer 51 contains, in an interface region 51a within a prescribed distance Da from an interface P, a perovskite type composite oxide represented by a general formula ABOand including at least La and Sr in the A site and including at least Ni, Fe, and Cu in the B site. |
