Copper vanadium bronz intercalation electrodes for lithium secon

Details Copper vanadium bronz intercalation electrodes for lithium secon Copper vanadium bronz intercalation electrodes for lithium secon

1992-02-20

1993-07-06

Chaudhuri, Olik

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

423593, H01M 618

Patent

active

052252973

ABSTRACT:
Copper vanadium bronzes suitable for use in positive intercalation electrodes in lithium secondary batteries are prepared by partial oxidative removal of copper ions from .beta.- and .epsilon.-Cu.sub.y V.sub.2 O.sub.5 bronzes. A preferred one of the resulting electrode materials is capable of intercalating up to about 1.4 Li per vanadium to yield a theoretical energy density of about 1200 Wh/Kg.

REFERENCES:
".omega.-Li.sub.x V.sub.2 O.sub.5 --a new electrode material for rechargeable lithium batteries", C. Delmas et al., Journal of Power Sources, 34 (1991), 113-118.
"On the Preparation and Characterization of a New Polymorph of V.sub.2 O.sub.5 ", J. M. Cocciantelli et al., Journal of Solid State Chemistry (1991), 497-502.
"Crystal chemistry of electrochemically inserted Li.sub.x V.sub.2 O.sub.5 ", J. M. Cocciantelli et al., Journal of Power Source, 34 (1991), 103-111.
"Rechargeable Copper Vanadate Cathodes for Lithium Cell", Yoji Sakurai et al., Journal of the Electrochemical Society, 135 (1988), 32-36.

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