Chemistry of inorganic compounds – Oxygen or compound thereof – Metal containing
Patent
1993-05-19
1995-06-20
Bos, Steven
Chemistry of inorganic compounds
Oxygen or compound thereof
Metal containing
429224, C01G 4512, H01M 450
Patent
active
054259320
ABSTRACT:
Lithium intercalation compounds suitable for use in high capacity secondary battery electrodes are prepared by reacting together at a temperature in the range of about 800.degree. to 900.degree. C. lithium and manganese compounds in a stoichiometric ratio resulting in a Li.sub.x Mn.sub.2 O.sub.4 compound wherein x is within the range of about 1.00 to 1.20. The resulting compound is annealed at a temperature in excess of about 800.degree. C. and cooled to at least about 500.degree. C. at the rate less than about 10.degree. C. per hour before being finally cooled to ambient working temperature. Intercalation electrodes comprising these lithiated compounds are used in secondary batteries to yield stable, extended capacities in excess of 110 AHr/Kg.
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Bell Communications Research Inc.
Bos Steven
Suchyta Leonard C.
White Lionel N.
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