Metal-supported solid oxide fuel cells provide significant advantages over conventional ceramic cells, including low materials cost, ruggedness, and tolerance to rapid thermal cycling and redox cycling. Various metal-supported cell designs have been developed, utilizing a range of electrolyte, electrode, and support materials prepared by various fabrication and deposition techniques. This paper reviews the current state of metal-supported cell technology and suggests opportunities for further development. (C) 2010 Elsevier B.V. All rights reserved.