Single cell for a solid oxide fuel cell
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United States of America Patent
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Jun 26, 2007
Grant Date -
Nov 17, 2005
app pub date -
Dec 10, 2004
filing date -
May 11, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A single cell for SOFC operating at low temperatures, is provided, including a first solid electrolyte with oxide ion conductivity at 800.degree. C. of 0.015 S/cm or more and bending strength of 600 MPa or more, a fuel electrode and bonded to one side of the first electrolyte, comprised of a cermet of a catalyst and a second solid electrolyte with a conductivity of 0.08 S/cm or more, and an air electrode bonded to the other side of the first electrolyte comprised of a compound of first perovskite type oxide with a third solid electrolyte. The electrodes are coated with fuel and air electrode contact layers, respectively.
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