ELECTRODE/ELECTROLYTE INTERFACES IN SOLID OXIDE FUEL CELLS

摘要

A solid oxide fuel cell (SOFC) with reduced electrical resistance and greater vacancy density control is provided. The SOFC includes an interfacial layer deposited, preferably by atomic layer deposition (ALD), between an electrode layer and an electrolyte layer. The interfacial layer includes an ion-conductive material. By use of ALD, the interfacial layer can have a very small thickness and can include layered structures of alternating materials. The interfacial layer can also include doping gradient structures of doped ion- conductive materials. Ultra-thin film platinum layers for high current density and cermet layers at the electrode/electrolyte interface are also provided.