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Title: Air electrode material for high temperature electrochemical cells

Abstract

Disclosed is a solid solution with a perovskite-like crystal structure having the general formula La.sub.1-x-w (M.sub.L).sub.x (Ce).sub.w (M.sub.S1).sub.1-y (M.sub.S2).sub.y O.sub.3 where M.sub.L is Ca, Sr, Ba, or mixtures thereof, M.sub.S1 is Mn, Cr, or mixtures thereof and M.sub.S2 is Ni, Fe, Co, Ti, Al, In, Sn, Mg, Y, Nb, Ta, or mixtures thereof, w is about 0.05 to about 0.25, x+w is about 0.1 to about 0.7, and y is 0 to about 0.5. In the formula, M.sub.L is preferably Ca, w is preferably 0.1 to 0.2, x+w is preferably 0.4 to 0.7, and y is preferably 0. The solid solution can be used in an electrochemical cell where it more closely matches the thermal expansion characteristics of the support tube and electrolyte of the cell.

Inventors:
 [1]
  1. (Churchill Boro, PA)
Issue Date:
Research Org.:
WESTINGHOUSE ELECTRIC CORP
OSTI Identifier:
865727
Patent Number(s):
4562124
Assignee:
Westinghouse Electric Corp. (Pittsburgh, PA) NETL
DOE Contract Number:  
AC02-80ET17089
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
air; electrode; material; temperature; electrochemical; cells; disclosed; solid; solution; perovskite-like; crystal; structure; formula; 1-x-w; s1; 1-y; s2; sr; mixtures; mn; mg; nb; 05; 25; preferably; cell; closely; matches; thermal; expansion; characteristics; support; tube; electrolyte; temperature electrochemical; closely matches; support tube; air electrode; electrochemical cells; thermal expansion; electrochemical cell; electrode material; crystal structure; solid solution; perovskite-like crystal; closely match; /429/252/501/

Citation Formats

Ruka, Roswell J. Air electrode material for high temperature electrochemical cells. United States: N. p., 1985. Web.
Ruka, Roswell J. Air electrode material for high temperature electrochemical cells. United States.
Ruka, Roswell J. Tue . "Air electrode material for high temperature electrochemical cells". United States. https://www.osti.gov/servlets/purl/865727.
@article{osti_865727,
title = {Air electrode material for high temperature electrochemical cells},
author = {Ruka, Roswell J.},
abstractNote = {Disclosed is a solid solution with a perovskite-like crystal structure having the general formula La.sub.1-x-w (M.sub.L).sub.x (Ce).sub.w (M.sub.S1).sub.1-y (M.sub.S2).sub.y O.sub.3 where M.sub.L is Ca, Sr, Ba, or mixtures thereof, M.sub.S1 is Mn, Cr, or mixtures thereof and M.sub.S2 is Ni, Fe, Co, Ti, Al, In, Sn, Mg, Y, Nb, Ta, or mixtures thereof, w is about 0.05 to about 0.25, x+w is about 0.1 to about 0.7, and y is 0 to about 0.5. In the formula, M.sub.L is preferably Ca, w is preferably 0.1 to 0.2, x+w is preferably 0.4 to 0.7, and y is preferably 0. The solid solution can be used in an electrochemical cell where it more closely matches the thermal expansion characteristics of the support tube and electrolyte of the cell.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {1}
}

Patent:

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