Oxide Ion Conductors for Solid Oxide Fuel Cells

  • Osamu Yamamoto
  • Takayuki Kawahara
  • Kazushige Kohno
  • Yasuo Takeda
  • Nobuyuki Imanshi
Conference paper


This paper reviews the electrical properties of the stabilized zirconia with high mechanical strength and toughness. These oxide ion conductors are attractive for the electrolyte of the self-supported planar type solid oxide fuel cells(SOFC). The electrical conductivity of the tetragonal stabilized zirconia(TZP), which has high bending strength of 1200MPa, was measured to be 6.5x10−2S/cm at 1,000°C. The electrical and mechanical properties of the composites of cubic stabilized zirconia and alumina were examined. The 20 weight% Al2O3 and 80 weight% stabilized zirconia with 8 mole% Y2O3 showed improved mechanical strength and only slight decrease in electrical conductivity.


Solid Oxide Fuel Cell High Mechanical Strength High Ionic Conductivity Tetragonal Zirconia Temperature Solid Oxide Fuel Cell 
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Copyright information

© Springer Science+Business Media New York 1991

Authors and Affiliations

  • Osamu Yamamoto
    • 1
  • Takayuki Kawahara
    • 1
  • Kazushige Kohno
    • 1
  • Yasuo Takeda
    • 1
  • Nobuyuki Imanshi
    • 1
  1. 1.Department of Chemistry, Faculty of EngineeringTSU514 Japan

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