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Title: Fabrication of solid oxide fuel cell by electrochemical vapor deposition

Abstract

In a high temperature solid oxide fuel cell (SOFC), the deposition of an impervious high density thin layer of electrically conductive interconnector material, such as magnesium doped lanthanum chromite, and of an electrolyte material, such as yttria stabilized zirconia, onto a porous support/air electrode substrate surface is carried out at high temperatures (approximately 1100.degree.-1300.degree. C.) by a process of electrochemical vapor deposition. In this process, the mixed chlorides of the specific metals involved react in the gaseous state with water vapor resulting in the deposit of an impervious thin oxide layer on the support tube/air electrode substrate of between 20-50 microns in thickness. An internal heater, such as a heat pipe, is placed within the support tube/air electrode substrate and induces a uniform temperature profile therein so as to afford precise and uniform oxide deposition kinetics in an arrangement which is particularly adapted for large scale, commercial fabrication of SOFCs.

Inventors:
 [1];  [2]
  1. (Willimantic, CT)
  2. (Oakdale, CT)
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
866965
Patent Number(s):
US 4831965
Assignee:
United States of America as represented by United States (Washington, DC) ANL
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
fabrication; solid; oxide; fuel; cell; electrochemical; vapor; deposition; temperature; sofc; impervious; density; layer; electrically; conductive; interconnector; material; magnesium; doped; lanthanum; chromite; electrolyte; yttria; stabilized; zirconia; porous; support; air; electrode; substrate; surface; carried; temperatures; approximately; 1100; degree; -1300; process; mixed; chlorides; specific; metals; involved; react; gaseous; water; resulting; deposit; tube; 20-50; microns; thickness; internal; heater; heat; pipe; placed; induces; uniform; profile; therein; afford; precise; kinetics; arrangement; particularly; adapted; scale; commercial; sofcs; yttria stabilized; electrode substrate; fuel cell; support tube; temperature profile; particularly adapted; temperature solid; air electrode; water vapor; chemical vapor; heat pipe; electrically conductive; oxide fuel; solid oxide; vapor deposition; substrate surface; oxide layer; porous support; stabilized zirconia; doped lanthanum; lanthanum chromite; electrolyte material; uniform temperature; vapor resulting; electrochemical vapor; internal heat; oxide deposition; specific metal; conductive interconnect; /118/

Citation Formats

Brian, Riley, and Szreders, Bernard E. Fabrication of solid oxide fuel cell by electrochemical vapor deposition. United States: N. p., 1989. Web.
Brian, Riley, & Szreders, Bernard E. Fabrication of solid oxide fuel cell by electrochemical vapor deposition. United States.
Brian, Riley, and Szreders, Bernard E. Sun . "Fabrication of solid oxide fuel cell by electrochemical vapor deposition". United States. https://www.osti.gov/servlets/purl/866965.
@article{osti_866965,
title = {Fabrication of solid oxide fuel cell by electrochemical vapor deposition},
author = {Brian, Riley and Szreders, Bernard E.},
abstractNote = {In a high temperature solid oxide fuel cell (SOFC), the deposition of an impervious high density thin layer of electrically conductive interconnector material, such as magnesium doped lanthanum chromite, and of an electrolyte material, such as yttria stabilized zirconia, onto a porous support/air electrode substrate surface is carried out at high temperatures (approximately 1100.degree.-1300.degree. C.) by a process of electrochemical vapor deposition. In this process, the mixed chlorides of the specific metals involved react in the gaseous state with water vapor resulting in the deposit of an impervious thin oxide layer on the support tube/air electrode substrate of between 20-50 microns in thickness. An internal heater, such as a heat pipe, is placed within the support tube/air electrode substrate and induces a uniform temperature profile therein so as to afford precise and uniform oxide deposition kinetics in an arrangement which is particularly adapted for large scale, commercial fabrication of SOFCs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {1}
}

Patent:

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