Method of electrode fabrication for solid oxide electrochemical cells

Patent · Mon Jan 01 00:00:00 EST 1990

OSTI ID:867612

Jensen, Russell R ^[1]

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1. Murrysville, PA

A process for fabricating cermet electrodes for solid oxide electrochemical cells by sintering is disclosed. First, a porous metal electrode is fabricated on a solid oxide cell, such as a fuel cell by, for example, sintering, and is then infiltrated with a high volume fraction stabilized zirconia suspension. A second sintering step is used to sinter the infiltrated zirconia to a high density in order to more securely attach the electrode to the solid oxide electrolyte of the cell. High performance fuel electrodes can be obtained with this process. Further electrode performance enhancement may be achieved if stabilized zirconia doped with cerium oxide, chromium oxide, titanium oxide, and/or praseodymium oxide for electronic conduction is used.

• Research Organization: Westinghouse Electric Corp., Pittsburgh, PA (United States)
• DOE Contract Number: AC02-80ET17089
• Assignee: Westinghouse Electric Corp. (Pittsburgh, PA)
• Patent Number(s): US 4971830
• OSTI ID: 867612
• Country of Publication: United States
• Language: English

Related Subjects

method
electrode
fabrication
solid
oxide
electrochemical
cells
process
fabricating
cermet
electrodes
sintering
disclosed
porous
metal
fabricated
cell
fuel
example
infiltrated
volume
fraction
stabilized
zirconia
suspension
step
sinter
density
securely
attach
electrolyte
performance
obtained
enhancement
achieved
doped
cerium
chromium
titanium
praseodymium
electronic
conduction
volume fraction
cermet electrodes
cermet electrode
fuel cell
cerium oxide
oxide electrochemical
porous metal
metal electrode
electrochemical cells
electrochemical cell
solid oxide
oxide electrolyte
fuel electrode
titanium oxide
stabilized zirconia
chromium oxide
praseodymium oxide
performance fuel
performance enhancement
fuel electrodes
electrode fabrication
securely attach
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