Lithium manganese oxy-fluorides for li-ion rechargeable battery

Details Lithium manganese oxy-fluorides for li-ion rechargeable battery Lithium manganese oxy-fluorides for li-ion rechargeable battery

1996-09-06

1997-10-07

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

423464, 423599, H01M 450, C01G 4512

Patent

active

056746458

ABSTRACT:
The cycling stability and capacity of li-ion rechargeable batteries are improved by the use of lithium manganese oxy-fluoride electrode component intercalation materials having the general formula, Li.sub.1+x M.sub.y Mn.sub.2-x-y O.sub.4-z F.sub.z, where M is a transition metal, e.g., Co, Cr, or Fe, and x.ltoreq.0.4, y.ltoreq.0.3, and 0.05.ltoreq.z.ltoreq.1.0.

REFERENCES:
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patent: 5370949 (1994-12-01), Davidson et al.
patent: 5425932 (1995-06-01), Tarascon
patent: 5460904 (1995-10-01), Gozdz et al.
patent: 5514496 (1996-05-01), Mishima et al.
Tarascon et al., "The Spinel Phase of LiMn.sub.2 O.sub.4 s a Cathode in Secondary Lithium Cells", J. Electrochem. Soc., vol. 138, No. 10, pp. 2859-2864, Oct. 1991.

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