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Title: Solid oxide fuel cells, and air electrode and electrical interconnection materials therefor

Abstract

In one aspect of the invention, an air electrode material for a solid oxide fuel cell comprises Y.sub.1-a Q.sub.a MnO.sub.3, where "Q" is selected from the group consisting of Ca and Sr or mixtures thereof and "a" is from 0.1 to 0.8. Preferably, "a" is from 0.4 to 0.7. In another aspect of the invention, an electrical interconnection material for a solid oxide fuel cell comprises Y.sub.1-b Ca.sub.b Cr.sub.1-c Al.sub.c O.sub.3, where "b" is from 0.1 to 0.6 and "c" is from 0 to 9.3. Preferably, "b" is from 0.3 to 0.5 and "c" is from 0.05 to 0.1. A composite solid oxide electrochemical fuel cell incorporating these materials comprises: a solid oxide air electrode and an adjacent solid oxide electrical interconnection which commonly include the cation Y, the air electrode comprising Y.sub.1-a Q.sub.a MnO.sub.3, where "Q" is selected from the group consisting of Ca and Sr or mixtures thereof and "a" is from 0.1 to 0.8, the electrical interconnection comprising Y.sub.1-b Ca.sub.b Cr.sub.1-c Al.sub.c O.sub.3, where "b" is from 0.1 to 0.6 and "c" is from 0.0 to 0.3; a yttrium stabilized solid electrolyte comprising (1-d)ZrO.sub.2 -(d)Y.sub.2 O.sub.3 where "d" is from 0.06 to 0.5; and a solid fuelmore » electrode comprising X-ZrO.sub.2, where "X" is an elemental metal.« less

Inventors:
 [1]
  1. Richland, WA
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
OSTI Identifier:
868452
Patent Number(s):
US 5143801
Assignee:
Battelle Memorial Institute (Richland, WA)
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
solid; oxide; fuel; cells; air; electrode; electrical; interconnection; materials; aspect; material; cell; comprises; 1-a; mno; selected; consisting; sr; mixtures; preferably; 1-b; 1-c; 05; composite; electrochemical; incorporating; adjacent; commonly; cation; comprising; yttrium; stabilized; electrolyte; 1-d; zro; 06; x-zro; elemental; metal; electrochemical fuel; cell incorporating; fuel cell; electrolyte comprising; electrical interconnection; solid fuel; oxide electrochemical; cell comprises; air electrode; fuel cells; solid electrolyte; oxide fuel; solid oxide; electrode material; fuel electrode; interconnection material; electrode comprising; elemental metal; materials comprises; composite solid; materials comprise; oxide electric; chemical fuel; interconnection materials; electrical interconnect; /429/

Citation Formats

Bates, J Lambert. Solid oxide fuel cells, and air electrode and electrical interconnection materials therefor. United States: N. p., 1992. Web.
Bates, J Lambert. Solid oxide fuel cells, and air electrode and electrical interconnection materials therefor. United States.
Bates, J Lambert. Wed . "Solid oxide fuel cells, and air electrode and electrical interconnection materials therefor". United States. https://www.osti.gov/servlets/purl/868452.
@article{osti_868452,
title = {Solid oxide fuel cells, and air electrode and electrical interconnection materials therefor},
author = {Bates, J Lambert},
abstractNote = {In one aspect of the invention, an air electrode material for a solid oxide fuel cell comprises Y.sub.1-a Q.sub.a MnO.sub.3, where "Q" is selected from the group consisting of Ca and Sr or mixtures thereof and "a" is from 0.1 to 0.8. Preferably, "a" is from 0.4 to 0.7. In another aspect of the invention, an electrical interconnection material for a solid oxide fuel cell comprises Y.sub.1-b Ca.sub.b Cr.sub.1-c Al.sub.c O.sub.3, where "b" is from 0.1 to 0.6 and "c" is from 0 to 9.3. Preferably, "b" is from 0.3 to 0.5 and "c" is from 0.05 to 0.1. A composite solid oxide electrochemical fuel cell incorporating these materials comprises: a solid oxide air electrode and an adjacent solid oxide electrical interconnection which commonly include the cation Y, the air electrode comprising Y.sub.1-a Q.sub.a MnO.sub.3, where "Q" is selected from the group consisting of Ca and Sr or mixtures thereof and "a" is from 0.1 to 0.8, the electrical interconnection comprising Y.sub.1-b Ca.sub.b Cr.sub.1-c Al.sub.c O.sub.3, where "b" is from 0.1 to 0.6 and "c" is from 0.0 to 0.3; a yttrium stabilized solid electrolyte comprising (1-d)ZrO.sub.2 -(d)Y.sub.2 O.sub.3 where "d" is from 0.06 to 0.5; and a solid fuel electrode comprising X-ZrO.sub.2, where "X" is an elemental metal.},
doi = {},
url = {https://www.osti.gov/biblio/868452}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {1}
}

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