SOLID OXIDE CELL

A solid oxide cell includes a fuel electrode, an air electrode, and an electrolyte disposed between the fuel electrode and the air electrode, in which the fuel electrode includes an electron-conductive needle-shaped particle, and the needle-shaped particle includes an Fe-Ni-based alloy. A length of a major axis of the needle-shaped particle may be at least 1.5 times a length of a minor axis of the needle-shaped particle.