ABSTRACT
Solid oxide fuel cells (SOFC’s), based on stabilized zirconia electrolyte, are currently under development for a variety of power generation applications. In addition to the zirconia electrolyte, the fuel cell employs doped lanthanum manganite as the cathode, nickel/zirconia cermet as the anode, and doped lanthanum chromite as the interconnect. Four common SOFC designs have been proposed: seal-less tubular, segmented-cell-in-series, monolithic, and flat-plate. Fabrication of each design requires different processing techniques for the ceramic structures. At present, the critical issues facing SOFC technology involve the development of suitable materials and fabrication processes. This paper reviews materials and fabrication processes used in the zirconia-based SOFC and discusses development trends.
