| 摘要 |
A fuel cell (20) comprising a fuel electrode (21), an air electrode (23), and a solid electrolyte layer (22) arranged between the fuel electrode (21) and the air electrode (23). A solid electrolyte layer (22) has a zirconia-based material as the main component thereof. A first intensity ratio (R1) for tetragonal zirconia relative to cubic zirconia in a Raman spectrum of a center section (22A) of the solid electrolyte layer (22) is larger than a second intensity ratio (R2) for tetragonal zirconia relative to cubic zirconia in a Raman spectrum of the outer rim (22B). |
