Long-Term SOFC Stability with Coated Ferritic Stainless Steel Interconnect

January 25, 2005

Conference Paper

Long-Term SOFC Stability with Coated Ferritic Stainless Steel Interconnect

Abstract

This study details long-term performance data for anode-supported thin-film YSZ-based SOFCs utilizing a ferritic stainless steel cathode current collector (Crofer22 APU) coated with a protective (Mn,Co)3O4 spinel to prevent Cr volatilization. Two standard cathode compositions, La(Sr)FeO3 and La(Sr)MnO3, were considered. The coating proved effective in blocking Cr migration, which resulted in long-term stability of the manganite cathode. In contrast the ferrite cathode indicated degradation that could not be attributed to Cr poisoning.

Revised: May 22, 2009 | Published: January 25, 2005

Citation

Simner S.P., M.D. Anderson, G. Xia, Z. Yang, and J.W. Stevenson. 2005. Long-Term SOFC Stability with Coated Ferritic Stainless Steel Interconnect. In Ceramic Engineering and Science Proceedings. 2005, 26, 83-90. Westerville, Ohio:American Ceramic Society, Inc. PNNL-SA-43773.