Union Carbide Corporation

Eveready Battery Company, Inc.

William P Evans

Violeta Z Leger

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A process for treating a sulfur-containing cell by employing an oxidant, such as a hypochlorite, in conjunction with an alkaline hydrolysis solution, such as a sodium hydroxide solution, to react with the sulfur-containing products to produce sulfides and sulfites and then have the oxidant convert the sulfides and sulfites to soluble sulfates followed by neutralization of the solution with a suitable acid, such as sulfuric acid, to produce a solution safe for conventional disposal.

Process for neutralizing sulfur-containing cells

A process for producing iodide-treated manganese dioxide which displays reduced abnormal initial open circuit voltage and decreased undesirable degradative reactions with cell components when employed in electrochemical cells.

Iodide treatment of manganese dioxide

A tellurium-containing cathode for nonaqueous cells employing tellurium in the +4 oxidation state such as TeO.sub.2, Te.sub.2 MoO.sub.7, TeO.sub.2.xBi.sub.2 O.sub.3 wherein x is from 0 to about 8, Sb.sub.2 TeO.sub.5 and Sb.sub.2 TeO.sub.7.

Tellurium-containing cathodes for nonaqueous cells

A nonaqueous cell employing a manganese dioxide-containing solid cathode having a minor amount of an alkali metal or an alkaline earth metal additive such as Li.sub.2 SiO.sub.3, Li.sub.2 B.sub.4 O.sub.7, Li.sub.2 MoO.sub.4, Li.sub.3 PO.sub.4 or Li.sub.2 WO.sub.4 to suppress the build-up of internal impedance in the cell during storage and discharge that may occur with electrolyte degradation.

Alkali metal or alkaline earth metal compound additive for manganese

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 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.

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Rocky River, OH, United States of America

William P Evans