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Title: Method of bonding a conductive layer on an electrode of an electrochemical cell

Abstract

A dense, electronically conductive interconnection layer is bonded onto a porous, tubular, electronically conductive air electrode structure, optionally supported by a ceramic support, by (A) providing an air electrode surface, (B) forming on a selected portion of the electrode surface, without the use of pressure, particles of LaCrO[sub 3] doped with an element selected from the group consisting of Sr, Mg, Ca, Ba, Co, and mixtures thereof, where the particles have a deposit on their surface comprising calcium oxide and chromium oxide; (C) heating the particles with the oxide surface deposit in an oxidizing atmosphere at from 1,300 C to 1,550 C, without the application of pressure, to provide a dense, sintered, interconnection material bonded to the air electrode, where calcium and chromium from the surface deposit are incorporated into the structure of the LaCrO[sub 3]. A solid electrolyte layer can be applied to the uncovered portion of the air electrode, and a fuel electrode can be applied to the solid electrolyte, to provide an electrochemical cell. 4 figs.

Inventors:
;
Issue Date:
Research Org.:
Westinghouse Electric Corp
OSTI Identifier:
7074419
Patent Number(s):
4861345 A
Application Number:
PPN: US 7-194065
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (United States) NETL; EDB-94-115728
DOE Contract Number:  
AC02-80ET17089
Resource Type:
Patent
Resource Relation:
Patent File Date: 13 May 1988
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; ELECTRIC CONDUCTORS; BONDING; ELECTRODES; SOLID ELECTROLYTE FUEL CELLS; BARIUM; CALCIUM; CHROMATES; COBALT; DOPED MATERIALS; IMPREGNATION; LANTHANUM COMPOUNDS; MAGNESIUM; SINTERING; STRONTIUM; ALKALINE EARTH METALS; CHROMIUM COMPOUNDS; DIRECT ENERGY CONVERTERS; ELECTROCHEMICAL CELLS; ELEMENTS; FABRICATION; FUEL CELLS; JOINING; MATERIALS; METALS; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; 300503* - Fuel Cells- Materials, Components, & Auxiliaries

Citation Formats

Bowker, J.C., and Singh, P. Method of bonding a conductive layer on an electrode of an electrochemical cell. United States: N. p., 1989. Web.
Bowker, J.C., & Singh, P. Method of bonding a conductive layer on an electrode of an electrochemical cell. United States.
Bowker, J.C., and Singh, P. Tue . "Method of bonding a conductive layer on an electrode of an electrochemical cell". United States.
@article{osti_7074419,
title = {Method of bonding a conductive layer on an electrode of an electrochemical cell},
author = {Bowker, J.C. and Singh, P.},
abstractNote = {A dense, electronically conductive interconnection layer is bonded onto a porous, tubular, electronically conductive air electrode structure, optionally supported by a ceramic support, by (A) providing an air electrode surface, (B) forming on a selected portion of the electrode surface, without the use of pressure, particles of LaCrO[sub 3] doped with an element selected from the group consisting of Sr, Mg, Ca, Ba, Co, and mixtures thereof, where the particles have a deposit on their surface comprising calcium oxide and chromium oxide; (C) heating the particles with the oxide surface deposit in an oxidizing atmosphere at from 1,300 C to 1,550 C, without the application of pressure, to provide a dense, sintered, interconnection material bonded to the air electrode, where calcium and chromium from the surface deposit are incorporated into the structure of the LaCrO[sub 3]. A solid electrolyte layer can be applied to the uncovered portion of the air electrode, and a fuel electrode can be applied to the solid electrolyte, to provide an electrochemical cell. 4 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {8}
}