Lithium-based active materials and preparation thereof

Details Lithium-based active materials and preparation thereof Lithium-based active materials and preparation thereof

2005-04-26

2005-04-26

Chaney, Carol (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C429S218100, C429S221000, C429S231950

Reexamination Certificate

active

06884544

ABSTRACT:
The invention provides novel active material represented by the general formula LiaMI1-yMIIyPO4, wherein MI is selected from the group consisting of Fe, Ni, Mn, V, Sn, Ti, Cr, and mixtures thereof; MII is selected from the group consisting of Zn, Cd, and a mixture thereof; a is about 1; and 0<y<1, which, upon electrochemical interaction, releases lithium ions, and is capable of reversibly cycling lithium ions. The invention provides a rechargeable lithium battery which comprises an electrode formed from the novel active material, wherein MI is selected from the group consisting of Fe, Co, Ni, Mn, Cu, V, Sn, Ti, Cr, and mixtures thereof. Methods for making the novel active material and methods for using such a material in electrochemical cells are also provided.

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