Composite carbonate and method for producing the same

Details Composite carbonate and method for producing the same Composite carbonate and method for producing the same

2011-03-01

2011-03-01

Kopec, Mark (Department: 1761)

Compositions

Electrically conductive or emissive compositions

Metal compound containing

C423S420200

Reexamination Certificate

active

07897069

ABSTRACT:
The present invention provides a nickel atom-, manganese atom- and cobalt atom-containing composite carbonate that is high in specific surface area and large in tap density, and useful as a raw material for producing a lithium nickel manganese cobalt composite oxide to be used in a positive electrode active material for use in a lithium secondary battery, and provides a method for industrially advantageously producing the composite carbonate. The composite carbonate includes nickel atoms, manganese atoms and cobalt atoms, and has an average particle size of 5 μm or more and less than 20 μm, a BET specific surface area of 40 to 80 m2/g and a tap density of 1.7 g/ml or more.

REFERENCES:
patent: 2008/0219911 (2008-09-01), Sun et al.
patent: 2009/0226811 (2009-09-01), Nakaoka
patent: 2010/0117025 (2010-05-01), Takeuchi et al.
patent: 2001-148249 (2001-05-01), None
patent: 2006-117517 (2006-05-01), None

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