ACTIVATION OF SOLID OXIDE FUEL CELL ELECTRODE SURFACES

摘要

A solid oxide fuel cell that is capable of increased power density is disclosed. A ceramic electrolyte comprising at least one surface, wherein at least a portion of at least one surface is substantially free of segregated impurities is also disclosed. A solid oxide fuel cell comprising an anode and a cathode, each comprising an active surface, and an electrolyte having a surface, wherein at least a portion of each of the cathode active surface, the anode active surface, and the electrolyte surface are substantially free of segregated impurities is also disclosed. Methods for removing at least a portion of a segregated impurity from a solid oxide fuel cell either prior to or during assembly, or after a period of fuel cell operation are also disclosed.