固体氧化物燃料电池20中，Ni和含Y 2 O 3的燃料极集电层11，和多孔中间层12，包括Ni和含Y氧化物和Y4Zr3O12，Y具有Ni和氧离子传导性 和燃料电极活性层13包含含氧化物。 其中，燃料极集电层中间层和所述阳极活性层是共烧。 Y的中间层12的固相含量大于Y的阳极集电层11的固相的含量比Y的燃料电极活性层13的固相的含量越低，和更高。 中间层的厚度为194.1Myuemu以下。 减小的中间层的孔隙率小于48.1％。

The solid oxide fuel cell 20 includes a fuel-electrode current-collecting layer 11 containing Ni and _Y 2 _{O 3,} a porous intermediate layer 12 containing Ni and Y-containing oxide and _Y 4 _Zr 3 _{O 12,} Ni and a fuel-electrode active layer 13 including the Y-containing oxide having oxygen ion conductivity and. The fuel electrode current-collecting layer intermediate layer and the fuel-electrode active layer is co-fired. The content of Y in the solid phase of the intermediate layer 12 is lower than the content of Y in the solid phase of the fuel-electrode current-collecting layer 11, and higher than the content of Y in the solid phase of the fuel-electrode active layer 13. The thickness of the intermediate layer is less than or equal to 194.1μm. The porosity of the reduced intermediate layer is less than or equal to 48.1%.