CATHODE MATERIAL FOR A FUEL CELL, CATHODE INCLUDING THE CATHODE MATERIAL, AND A SOLID OXIDE FUEL CELL INCLUDING THE CATHODE MATERIAL

摘要

A cathode material for a fuel cell, the cathode material including a first metal oxide having a perovskite crystal structure, and a second metal oxide including cerium and at least two lanthanide elements, the lanthanide elements having an average ionic radius of about 0.90 to about 1.02 Å.