Fuel electrode material, a fuel electrode, and a solid oxide fuel cell

A powder fuel electrode material for a fuel electrode of a solid oxide fuel cell, the powder fuel electrode material consisting essentially of a mixture of:

• a nickel-based powder material comprising at least one of nickel and nickel oxide;
• and
• at least one of titanium oxide (IV) and a titanium source capable of changing into titanium oxide (IV) by heat treatment in air mixed into the nickel-based material powder;
• wherein the powder fuel electrode material further contains a solid electrolyte exhibiting oxide ion conductivity, which comprises one of stabilized zirconia containing one or more oxide materials selected from the groups consisting of Sc2O3, Y2O3, CeO2, CaO, MgO, a ceria solid solution containing at least one of Sm2O3, Gd2O3 and Y2O3, and Bi2O3, mixed into the powder fuel electrode material after the at least one of titanium oxide (IV) and the titanium source is mixed into the nickel-based powder material;
• and
• wherein the powder fuel electrode material contains 35 to 70 wt % of the solid electrolyte with respect to nickel oxide.