Union Carbide Corporation

Eveready Battery Company, Inc.

Violeta Z Leger

William P Evans

George E Blomgren

Jack W Marple

The invention relates to a nonaqueous electrolyte for cells such as Li/FeS.sub.2 cells, comprising a solute, such as LiCF.sub.3 SO.sub.3, dissolved in a mixture of a major amount of dioxolane (i.e. 40-53 volume percent), a minor amount of propylene carbonate (i.e. 8-18 volume percent) and dimethoxyethane (i.e. 32-40 volume percent).

Nonaqueous electrolyte

An electrolyte for nonaqueous cells containing a solvent comprising at least one diether containing the sequence O.sub.1 C.sub.1 C.sub.2 O.sub.2 wherein two or three contiguous atoms are part of a five-, six- or seven-member ring system having as the remaining ring atoms carbon, or carbon and hetero atoms, with a methyl group bonded to an oxygen atom O.sub.1 and/or O.sub.2 when said oxygen atom is not included in the ring structure.

Organic electrolyte for nonaqueous cells

A nonaqueous cell comprising an active metal anode such as lithium, a manganese dioxide-containing cathode which contains less than 1 weight percent water in the manganese dioxide and a liquid organic electrolyte comprising lithium trifluoromethane sulfonate (LiCF.sub.3 SO.sub.3) dissolved in propylene carbonate (PC) and dimethoxyethane (DME).

Nonaqueous cells employing heat-treated MnO.sub.2 cathodes and a

A sulfide-containing cathode for nonaqueous cells such as AgBiS.sub.2, Co.sub.2 Bi.sub.2 S.sub.5, CoBi.sub.2 S.sub.4 and FeSb.sub.2 S.sub.4.

Sulfide-containing cathode for nonaqueous cells

A solid cathode for nonaqueous cells comprising complex metal sulfides such as PbFeS.sub.2, Co.sub.0.5 Fe.sub.1.5 S.sub.2, Co.sub.1.5 Fe.sub.0.5 S.sub.2 and CoFeS.sub.2.

Complex metal sulfide cathodes for nonaqueous cells

A nonaqueous cell employing an anode such as lithium, a liquid organic electrolyte and a cathode comprising manganese dioxide and a poly-carbon fluoride such as (C.sub.2 F).sub.n or (CF.sub.x).sub.n in which x is greater than 0 up to about 1.1.

Nonaqueous cell having a MNO.sub.2 /poly-carbon fluoride cathode

A solid cathode material comprising the reaction product of metallic bismuth, metallic sulfur and metallic iron or metallic lead for use in nonaqueous electrochemical cell systems using active anodes, such as lithium, and organic electrolytes, such as electrolytes based on 3-methyl-2-oxazolidone in conjunction with a cosolvent and a selected solute.

Cathode comprising the reaction product of bismuth, sulfur and lead or

A solid cathode material comprising the thermal reaction product of bismuth trioxide and molybdenum trioxide for use in nonaqueous electrochemical cell systems using active metal anodes, such as lithium, and organic electrolytes, such as electrolytes based on 3-methyl-2-oxazolidone in conjunction with a cosolvent and a selected solute.

Nonaqueous cell with cathode comprising the reaction product of bismuth

A solid cathode material for electrochemical cell systems comprising the thermal reaction product of bismuth trioxide and tungsten trioxide.

Cathode comprising the reaction product of Bi.sub.2 O.sub.3 and WO.sub.3

A nonaqueous cell employing an anode of aluminum, magnesium, calcium or their alloys in which at least the surface of the anode is amalgamated, a solid cathode and an electrolyte comprising a salt such as lithium or ammonium salt dissolved in an aprotic alkylated amide solvent.

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North Olmsted, OH, United States of America

Violeta Z Leger