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