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:
-
- Churchill Boro, PA
- Issue Date:
- Research Org.:
- Westinghouse Electric Corp., Pittsburgh, PA (United States)
- OSTI Identifier:
- 865727
- Patent Number(s):
- 4562124
- Assignee:
- Westinghouse Electric Corp. (Pittsburgh, PA)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
C - CHEMISTRY C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES C25B - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS
- 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}
}
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