Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Include electrolyte chemically specified and method
Patent
1985-01-08
1985-10-01
Le Fevour, Charles F.
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Include electrolyte chemically specified and method
501 55, 501 73, 501103, 501153, 501154, H01M 618
Patent
active
045446148
ABSTRACT:
An ionically conductive glass is disclosed for use as electrolyte in a high temperature electrochemical cell, particularly a cell with sodium anode and sulfur cathode. The glass includes the constituents Na.sub.2 O, ZrO.sub.2, Al.sub.2 O.sub.3 and SiO.sub.2 in selected proportions to be a single phase solid solution substantially free of crystalline regions and undissolved constituents. Other advantageous properties are an ionic conductivity in excess of 2.times.10.sup.-3 (ohm-cm).sup.-1 at 300.degree. C. and a glass transition temperature in excess of 500.degree. C.
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Development of a Sodium-Sulfur Battery Suitable for Use by Elec. Utilities & for Vehicular Propulsion", U.S. DOE 1982, pp. 3-10, 32, 102-106.
Solid Electrolytes: Fundamentals & Applications Sym., 166 Meeting Elec. Soc., N.O. LA, Oct. 1984, "Invest. of Sod.-Ion Cond. Fluids in Na.sub.2 O-ZrO.sub.2 -Al.sub.2 O.sub.3 -SiO.sub.2 ".
"Glass Electrolytes for Sodium/Sulfur Cells, 6th DOE Electrochem. Contractor's Review, Jun. 1984, pp. 26-28.
Kucera Gene H.
Roche Michael F.
Fisher Robert J.
Glenn Hugh W.
Hightower Judson R.
Le Fevour Charles F.
The United States of America as represented by the United States
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