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Overview of Intermediate-Temperature Solid Oxide Fuel Cells

  • Harumi Yokokawa
Chapter
Part of the Fuel Cells and Hydrogen Energy book series (FCHY)

The first breakthrough in solid oxide fuel cell (SOFC) technology was achieved by Westinghouse Power Corporation (WHPC; currently Siemens Power Generation Corporation) [1] in the late 1980s in their efforts in establishing tubular SOFCs with the following technologically important points: 1. Optimizing the materials [yttrium-stabilized zirconia (YSZ) for the electrolyte, lanthanum strontium manganite for the cathode, nickel for the anode, and lanthanum magnesium chromite for the interconnect]. 2. Adopting an excellent processing technology of electrochemical vapor deposition (EVD) [2] that has extraordinary advantages in fabricating dense films on porous materials or in anchoring nickel on YSZ. 3. Adopting a sealless tubular stack design to avoid usage of sealant materials. 4. Aiming for stationary applications. This breakthrough leveraged up the development of the SOFC stacks/systems from the R&D stage to a more realistic stage with specifically targeted market sectors. The long operation life was successfully demonstrated, and also the high conversion efficiency from natural gas to electricity was demonstrated as 47% Lower Heating Value (LHV) for stationary 100-kW SOFC systems and as 52% for combined SOFC-gas turbine systems.

Keywords

Oxide Scale Solid Oxide Fuel Cell Lower Heating Value Sulfur Poisoning Lanthanum Strontium Manganite 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.Energy Technology Research Institute, National Institute of Advanced Industrial Science and Technology, Higashi 1-1-1, AIST Central No.5TsukubaJapan

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