Vanadium oxide cathode active material and method of making same

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode

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429191, 429192, 205 50, 205 57, H01M 402

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active

053668308

ABSTRACT:
The present invention provides a lithium battery comprising a cathode active material having as its major component amorphous V.sub.2 O.sub.5. The amorphous V.sub.2 O.sub.5 is prepared by electrochemically reacting crystalline vanadium pentoxide (V.sub.2 O.sub.5) with lithium in a cell to a voltage sufficient to transform crystalline vanadium pentoxide to amorphous vanadium pentoxide. Preferably, the electrochemical reaction is conducted in a V.sub.2 O.sub.5 --Li cell of about 1.5 V at a relatively constant current in a range of about 0.05 milliamps per cm.sup.2 to about 0.5 milliamps per cm.sup.2.

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Gabano, "Lithium Batteries" pp: 266-268 (month N/A).
Venkatasetty, "Lithium Battery Technology" 1984 pp: 66-67 (month N/A).

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