COMPOSITE CATHODE FOR USE IN SOLID OXIDE FUEL CELL DEVICES

摘要

Disclosed are composite electrodes for use in a solid oxide fuel cell devices. The electrodes are comprised of a sintered mixture of lanthanum strontium ferrite phase and yttria stabilized zirconia phase. The lanthanum strontium ferrite phase has the general formula (LaxSry)i±δ(FeaMnbCoc)O3; wherein 1.O≧x≧0.65; 0.35≧y≧0.0; x+y=1.0, δ=0-0.1, a+b+c=1, and a>0.6. Also disclosed are methods of making the composite electrodes and solid oxide fuel cell devices comprising same.