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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 26 is bonded onto a porous, tubular, electronically conductive air electrode structure 16, optionally supported by a ceramic support 22, by (A) providing an air electrode surface, (B) forming on a selected portion of the electrode surface 24, 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.degree. C. to 1,550.degree. C., without the application of pressure, to provide a dense, sintered, interconnection material 26 bonded to the air electrode 16, where calcium and chromium from the surface deposit are incorporated into the structure of the LaCrO.sub.3. A solid electrolyte layer 18 can be applied to the uncovered portion of the air electrode, and a fuel electrode 20 can be applied to the solid electrolyte, to provide an electrochemical cell 10.

Inventors:
 [1];  [2]
  1. Richland Township, Allegheny County, PA
  2. Pittsburgh, PA
Publication Date:
Research Org.:
Westinghouse Electric Corp., Pittsburgh, PA (United States)
OSTI Identifier:
867089
Patent Number(s):
US 4861345
Assignee:
Westinghouse Electric Corp. (Pittsburgh, PA)
DOE Contract Number:  
AC02-80ET17089
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; bonding; conductive; layer; electrode; electrochemical; cell; dense; electronically; interconnection; 26; bonded; porous; tubular; air; structure; 16; optionally; supported; ceramic; support; 22; providing; surface; forming; selected; portion; 24; pressure; particles; lacro; doped; element; consisting; sr; mg; mixtures; deposit; comprising; calcium; oxide; chromium; heating; oxidizing; atmosphere; 300; degree; 550; application; provide; sintered; material; incorporated; solid; electrolyte; 18; applied; uncovered; fuel; 20; 10; interconnection layer; oxide surface; electrolyte layer; ceramic support; calcium oxide; electrode structure; air electrode; electrochemical cell; solid electrolyte; element selected; electronically conductive; fuel electrode; electrode surface; conductive layer; interconnection material; chromium oxide; conductive interconnection; selected portion; oxidizing atmosphere; uncovered portion; surface deposit; surface comprising; comprising calcium; optionally supported; conductive interconnect; conductive air; /29/429/

Citation Formats

Bowker, Jeffrey C, and Singh, Prabhakar. Method of bonding a conductive layer on an electrode of an electrochemical cell. United States: N. p., 1989. Web.
Bowker, Jeffrey C, & Singh, Prabhakar. Method of bonding a conductive layer on an electrode of an electrochemical cell. United States.
Bowker, Jeffrey C, and Singh, Prabhakar. Sun . "Method of bonding a conductive layer on an electrode of an electrochemical cell". United States. https://www.osti.gov/servlets/purl/867089.
@article{osti_867089,
title = {Method of bonding a conductive layer on an electrode of an electrochemical cell},
author = {Bowker, Jeffrey C and Singh, Prabhakar},
abstractNote = {A dense, electronically conductive interconnection layer 26 is bonded onto a porous, tubular, electronically conductive air electrode structure 16, optionally supported by a ceramic support 22, by (A) providing an air electrode surface, (B) forming on a selected portion of the electrode surface 24, 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.degree. C. to 1,550.degree. C., without the application of pressure, to provide a dense, sintered, interconnection material 26 bonded to the air electrode 16, where calcium and chromium from the surface deposit are incorporated into the structure of the LaCrO.sub.3. A solid electrolyte layer 18 can be applied to the uncovered portion of the air electrode, and a fuel electrode 20 can be applied to the solid electrolyte, to provide an electrochemical cell 10.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {1}
}

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