Characterization of ceria-based SOFCs

Technical Report · Tue Dec 31 04:00:00 EST 1996

DOI:https://doi.org/10.2172/460187· OSTI ID:460187

Doshi, R.; Routbort, J.; Krumpelt, M. ^[1]

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1. Argonne National Lab., IL (United States)

Solid Oxide Fuel Cells (SOFCs) operating at low temperatures (500-700{degrees}C) offer many advantages over the conventional zirconia-based fuel cells operating at higher temperatures. Reduced operating temperatures result in: (1) Application of metallic interconnects with reduced oxidation problems (2) Reduced time for start-up and lower energy consumption to reach operating temperatures (3) Increased thermal cycle ability for the cell structure due to lower thermal stresses of expansion mismatches. While this type of fuel cell may be applied to stationary applications, mobile applications require the ability for rapid start-up and frequent thermal cycling. Ceria-based fuel cells are currently being developed in the U.K. at Imperial College, Netherlands at ECN, and U.S.A. at Ceramatec. The cells in each case are made from a doped ceria electrolyte and a La{sub 1-x}Sr{sub x}Co{sub 1-y}Fe{sub y}O{sub 3} cathode.

• Research Organization: Fuel Cell Seminar Organizing Committee (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 460187
• Report Number(s): CONF-961107--Absts.; ON: TI97001494
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
36 MATERIALS SCIENCE
CERIUM OXIDES
COBALT OXIDES
CURRENT DENSITY
DOPED MATERIALS
ELECTRICAL PROPERTIES
IRON OXIDES
LANTHANUM OXIDES
SOLID ELECTROLYTE FUEL CELLS
STRONTIUM OXIDES