Advanced Energy Technologies LLC

Nippon Telegraph and Telephone Corporation

Kunio Moriya

Goro Yamauchi

Shin-Ichi Tobishima

Fred Laman

An anode material for use in lithium based electrical cells is described. The anode material comprises a fine and uniform dispersion of second phase particles in lithium. The particles have an average particle size from about 0.5 .mu.M to about 40 .mu.M and are present at a concentration ranging from about 0.1 At % to about 10 At %. The anode material exhibits a reduction in dentrite and mossy Li formation, while maintaining the necessary mechanical properties of the material for easy working. The new anode demonstrates excellent cell performance and thermal stability.

Electrochemical cell comprising dispersion alloy anode

The present invention provides an electrolyte for use in a secondary lithium battery comprising (i) vanadium oxide-based cathode active material having a molar ratio of oxygen to vanadium between two and three, (ii) an anode active material selected from the group consisting of lithium, lithium ion dischargeable alloys, lithium ion dischargeable intercalation or insertion compounds, and (iii) an electrolyte solution of lithium salt(s) dissolved in a mixed organic solvent. The organic solvent is a mixture of three kinds of solvents, namely ethylene carbonate (EC), propylene carbonate (PC) and 2-methyltetrahydrofuran (2MeTHF) in the following ratio:

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Vancouver, Canada

Kunio Moriya