skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

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/ /minus/ 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:
;
Publication Date:
Research Org.:
Argonne National Lab., IL (USA); Combustion Engineering, Inc., Stamford, CT (USA)
OSTI Identifier:
6166306
Patent Number(s):
PATENTS-US-A7184476
Application Number:
ON: DE89009605
Assignee:
Dept. of Energy TIC; ERA-14-022341; EDB-89-062461
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; LANTHANUM COMPOUNDS; CHEMICAL VAPOR DEPOSITION; SOLID ELECTROLYTES; FABRICATION; ZIRCONIUM OXIDES; DESIGN; ELECTROCHEMISTRY; INVENTIONS; CHALCOGENIDES; CHEMICAL COATING; CHEMISTRY; DEPOSITION; ELECTROLYTES; OXIDES; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; SURFACE COATING; TRANSITION ELEMENT COMPOUNDS; ZIRCONIUM COMPOUNDS; 300501* - Fuel Cells- Design & Development

Citation Formats

Riley, B., and Szreders, B.E. Fabrication of solid oxide fuel cell by electrochemical vapor deposition. United States: N. p., 1988. Web.
Riley, B., & Szreders, B.E. Fabrication of solid oxide fuel cell by electrochemical vapor deposition. United States.
Riley, B., and Szreders, B.E. Tue . "Fabrication of solid oxide fuel cell by electrochemical vapor deposition". United States.
@article{osti_6166306,
title = {Fabrication of solid oxide fuel cell by electrochemical vapor deposition},
author = {Riley, B. and Szreders, B.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/ /minus/ 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 = {1988},
month = {4}
}