Method for producing a solid oxide fuel cell and solid oxide fuel cell

A fuel gas passage, and the fuel gas flow field fuel electrode layer comprising an iron group element and ceramics provided around the, and the solid electrolyte layer provided around the fuel electrode layer, the solid electrolyte a solid oxide fuel cell having an air electrode layer provided on the periphery of the layer, the fuel gas is supplied from one side of the fuel gas flow passage, provided on the other side of the fuel gas channel temperature of the solid oxide fuel cell is discharged from the opening in a high-temperature state close to the generator temperature, suppressing the rate of oxidation expansion of the fuel electrode layer caused when the oxidant gas flowing from the opening provided by, it was subjected to inflation speed reduction process, a solid oxide fuel cell air flow into the fuel electrode side due to the operation stop of the fuel cell can be prevented electrolyte cracks and cell damage even if due it has become possible.