Method of producing cathode active material for non-aqueous elec

Details Method of producing cathode active material for non-aqueous elec Method of producing cathode active material for non-aqueous elec

1996-02-27

1998-06-23

Langel, Wayne

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

423594, 423599, C01G 4512, C01G 5100, C01G 5300

Patent

active

057701733

ABSTRACT:
In producing a cathode active material for a non-aqueous electrolyte secondary battery, an hydroxide or an oxyhydroxide of a 3d transition metal, e.g., MnOOH is exposed to an atmosphere of saturated water vapor containing alkali metal ions in a water mist preferably in a pressurized condition, so that the water mist substitutes the alkali metal ions for protons contained in the hydroxide or the oxyhydroxide.

REFERENCES:
patent: 2042814 (1936-06-01), Vadner
patent: 4277360 (1981-07-01), Mellors et al.
patent: 4959282 (1990-09-01), Dahn et al.
patent: 5180574 (1993-01-01), von Sacken
patent: 5266299 (1993-11-01), Tarascon
patent: 5630993 (1997-05-01), Amatucci et al.
Tsutomu Ohzuku et al.; "LiMnO.sub.2 as Cathode for Secondary Lithium Cell"; Chemistry Express, vol. 7, No. 3, Kinki Chemical Society, Japan; pp. 193-196 (1992).

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