Compositions – Electrically conductive or emissive compositions – Metal compound containing
Patent
1998-03-17
1999-06-15
Kopec, Mark
Compositions
Electrically conductive or emissive compositions
Metal compound containing
2525202, 2525212, 4231795, 423593, 423594, 423598, 423599, 4292181, 429223, 429224, H01B 108, C01D 1502, H01M 436
Patent
active
059119209
ABSTRACT:
It is an object of the present invention to provide a manufacturing method for Li composite oxides employed as electrode materials for Li ion batteries which is capable of obtaining Li composite oxides having a stable composition using heat treatment at comparatively low temperatures.
An Li source compound and an M source compound (where M is one or more elements selected from a group containing Mn, Ni, Co, Fe, V, Ti, Sc, Y, and Al) having an element M in a composite with Li are mixed at predetermined proportions. A chemical reaction is caused by pulverizing and mixing this raw material mixture in an inert gas atmosphere. The pulverization, mixing, and reaction are continued until the raw material can no longer be detected. After pulverization and mixing, the raw material mixture is subjected to heat treatment by heating it to a temperature within a predetermined range.
REFERENCES:
patent: 4526855 (1985-07-01), Hartwig et al.
patent: 5700442 (1997-12-01), Bloch et al.
patent: 5780181 (1998-07-01), Idota et al.
Hasezaki Kazuhiro
Kamada Masatomo
Motomura Hikaru
Hamlin Derrick G.
Kopec Mark
Mitsubishi Heavy Industries Ltd.
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