Combustion Engineering, Inc.

James E Brule

David N Palmer

James K O'Neill

A nonaqueous electrolyte for a lithium battery containing an ionizable lithium salt as the solute and a dipolar aprotic organic solvent therefore is improved by incorporating into the electrolyte 1,4-diazabicyclo [2.2.2] octane as an energy density enhancing additive in an amount from about 2% by weight to about 8% by weight.

Electrolyte additive

A cathode active material, which is especially useful as the cathode in a lithium high energy density nonaqueous cell operating on the principle of intercalation, has the general formula Li.sub.x M.sub.y M'.sub.z O.sub.2-n F.sub.n where M is selected from the group consisting of metallic ions having a valence of +1 other than lithium and metallic radicals having a valence of +1; M' is selected from the group consisting of Fe, Co and Ni; x is 0.01 to 0.99 and y is 0.99 to 0.01, respectively; z is 0.8 to 1.2; and n is zero to 0.1.

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South Windsor, CT, United States of America

James E Brule