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Title: Method of doping interconnections for electrochemical cells

Abstract

A dense, electronically conductive interconnection layer 26 is bonded on a porous, tubular, electronically conductive air electrode structure 16, optionally supported by a ceramic support 22, by (A) forming a layer of oxide particles of at least one of the metals Ca, Sr, Co, Ba or Mg on a part 24 of a first surface of the air electrode 16, (B) heating the electrode structure, (C) applying a halide vapor containing at least lanthanum halide and chromium halide to the first surface and applying a source of oxygen to a second opposite surface of the air electrode so that they contact at said first surface, to cause a reaction of the oxygen and halide and cause a dense lanthanum-chromium oxide structure to grow, from the first electrode surface, between and around the oxide particles, where the metal oxide particles get incoporated into the lanthanum-chromium oxide structure as it grows thicker with time, and the metal ions in the oxide particles diffuse into the bulk of the lanthamum-chromium oxide structure, to provide a dense, top, interconnection layer 26 on top of the air electrode 16. A solid electrolyte layer 18 can be applied to the uncovered portion of the air electrode,more » and a fuel electrode 20 can be applied to the solid electrolyte, to provide an electrochemical cell 10.« less

Inventors:
 [1];  [2];  [3];  [4]
  1. (Monroeville, PA)
  2. (Murrysville, PA)
  3. (Pittsburgh, PA)
  4. (Lower Burrell, PA)
Issue Date:
Research Org.:
WESTINGHOUSE ELECTRIC CORP
OSTI Identifier:
867249
Patent Number(s):
4895576
Assignee:
Westinghouse Electric Corp. (Pittsburgh, PA) OSTI
DOE Contract Number:  
AC02-80ET17089
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; doping; interconnections; electrochemical; cells; dense; electronically; conductive; interconnection; layer; 26; bonded; porous; tubular; air; electrode; structure; 16; optionally; supported; ceramic; support; 22; forming; oxide; particles; metals; sr; mg; 24; surface; heating; applying; halide; vapor; containing; lanthanum; chromium; source; oxygen; opposite; contact; reaction; lanthanum-chromium; grow; metal; incoporated; grows; thicker; time; diffuse; bulk; lanthamum-chromium; provide; top; solid; electrolyte; 18; applied; uncovered; portion; fuel; 20; cell; 10; halide vapor; vapor containing; interconnection layer; electrolyte layer; ceramic support; electrode structure; air electrode; electrochemical cells; metal oxide; electrochemical cell; solid electrolyte; oxide particles; electronically conductive; fuel electrode; electrode surface; chromium oxide; conductive interconnection; opposite surface; uncovered portion; optionally supported; oxide particle; site surface; conductive interconnect; conductive air; /29/427/429/

Citation Formats

Pal, Uday B., Singhal, Subhash C., Moon, David M., and Folser, George R. Method of doping interconnections for electrochemical cells. United States: N. p., 1990. Web.
Pal, Uday B., Singhal, Subhash C., Moon, David M., & Folser, George R. Method of doping interconnections for electrochemical cells. United States.
Pal, Uday B., Singhal, Subhash C., Moon, David M., and Folser, George R. Mon . "Method of doping interconnections for electrochemical cells". United States. https://www.osti.gov/servlets/purl/867249.
@article{osti_867249,
title = {Method of doping interconnections for electrochemical cells},
author = {Pal, Uday B. and Singhal, Subhash C. and Moon, David M. and Folser, George R.},
abstractNote = {A dense, electronically conductive interconnection layer 26 is bonded on a porous, tubular, electronically conductive air electrode structure 16, optionally supported by a ceramic support 22, by (A) forming a layer of oxide particles of at least one of the metals Ca, Sr, Co, Ba or Mg on a part 24 of a first surface of the air electrode 16, (B) heating the electrode structure, (C) applying a halide vapor containing at least lanthanum halide and chromium halide to the first surface and applying a source of oxygen to a second opposite surface of the air electrode so that they contact at said first surface, to cause a reaction of the oxygen and halide and cause a dense lanthanum-chromium oxide structure to grow, from the first electrode surface, between and around the oxide particles, where the metal oxide particles get incoporated into the lanthanum-chromium oxide structure as it grows thicker with time, and the metal ions in the oxide particles diffuse into the bulk of the lanthamum-chromium oxide structure, to provide a dense, top, interconnection layer 26 on top of the air electrode 16. 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 = {1990},
month = {1}
}

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