Method of doping interconnections for electrochemical cells

Pal, Uday B; Singhal, Subhash C; Moon, David M; Folser, George R

Title: Method of doping interconnections for electrochemical cells

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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 » « less

Inventors:

Pal, Uday B ^[1]; Singhal, Subhash C ^[2]; Moon, David M ^[3]; Folser, George R ^[4]

Monroeville, PA
Murrysville, PA
Pittsburgh, PA
Lower Burrell, PA

Issue Date:: 1990-01-01

Research Org.:: Westinghouse Electric Corp., Pittsburgh, PA (United States)

OSTI Identifier:: 867249

Patent Number(s):: 4895576

Assignee:: Westinghouse Electric Corp. (Pittsburgh, PA)

Patent Classifications (CPCs):: H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY

C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL

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H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
H01M8/243 - Grouping of unit cells of tubular or cylindrical configuration
H01M8/12 - operating at high temperature, e.g. with stabilised ZrO2 electrolyte

C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL
C23C16/08 - from metal halides

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Y02E60/50 - Fuel cells

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T29/49115 - including coating or impregnating

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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.

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                    Pal, Uday B, Singhal, Subhash C, Moon, David M, & Folser, George R. Method of doping interconnections for electrochemical cells.  United States.

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                    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.

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@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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