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Title: Method of electrode fabrication for solid oxide electrochemical cells

Abstract

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.

Inventors:
Publication Date:
Research Org.:
Westinghouse Electric Corp., Pittsburgh, PA (United States)
OSTI Identifier:
7169207
Patent Number(s):
US 4971830; A
Application Number:
PPN: US 7-473528
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (United States)
DOE Contract Number:  
AC02-80ET17089
Resource Type:
Patent
Resource Relation:
Patent File Date: 1 Feb 1990
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 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

Citation Formats

Jensen, R R. Method of electrode fabrication for solid oxide electrochemical cells. United States: N. p., 1990. Web.
Jensen, R R. Method of electrode fabrication for solid oxide electrochemical cells. United States.
Jensen, R R. Tue . "Method of electrode fabrication for solid oxide electrochemical cells". United States.
@article{osti_7169207,
title = {Method of electrode fabrication for solid oxide electrochemical cells},
author = {Jensen, R R},
abstractNote = {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.},
doi = {},
url = {https://www.osti.gov/biblio/7169207}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {11}
}