Method of electrode fabrication for solid oxide electrochemical cells
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. 5 figs.
- Research Organization:
- Westinghouse Electric Corp., Pittsburgh, PA (United States)
- DOE Contract Number:
- AC02-80ET17089
- Assignee:
- Westinghouse Electric Corp., Pittsburgh, PA (United States)
- Patent Number(s):
- US 4971830; A
- Application Number:
- PPN: US 7-473528
- OSTI ID:
- 7169207
- Resource Relation:
- Patent File Date: 1 Feb 1990
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
CERMETS
FABRICATION
ELECTRODES
SOLID ELECTROLYTE FUEL CELLS
DOPED MATERIALS
IMPREGNATION
SINTERING
ZIRCONIUM OXIDES
CHALCOGENIDES
COMPOSITE MATERIALS
DIRECT ENERGY CONVERTERS
ELECTROCHEMICAL CELLS
FUEL CELLS
MATERIALS
OXIDES
OXYGEN COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
250903* - Energy Storage- Batteries- Materials
Components
& Auxiliaries
360201 - Ceramics
Cermets
& Refractories- Preparation & Fabrication