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

Bowker, Jeffrey C; Singh, Prabhakar

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

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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:

Bowker, Jeffrey C ^[1]; Singh, Prabhakar ^[2]

Richland Township, Allegheny County, PA
Pittsburgh, PA

Issue Date:: 1989-01-01

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

OSTI Identifier:: 867089

Patent Number(s):: 4861345

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

Patent Classifications (CPCs):: C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL

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

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C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL
C23C16/0272 - {Deposition of sub-layers, e.g. to promote the adhesion of the main coating}
C23C16/40 - Oxides

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
H01M4/8885 - {Sintering or firing}
H01M8/0215 - Glass
H01M8/0219 - {Chromium complex oxides}

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
Y10T29/49108 - Electric battery cell making
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; 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. 
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                    Bowker, Jeffrey C, & Singh, Prabhakar. Method of bonding a conductive layer on an electrode of an electrochemical cell.  United States.

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                    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.

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@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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