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., Pittsburgh, PA (United States)
- OSTI Identifier:
- 7074419
- Patent Number(s):
- 4861345
- Application Number:
- PPN: US 7-194065
- Assignee:
- Westinghouse Electric Corp., Pittsburgh, PA (United States)
- 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 = {Tue Aug 29 00:00:00 EDT 1989},
month = {Tue Aug 29 00:00:00 EDT 1989}
}