Transition metal composite hydroxide capable of serving as precursor of positive electrode active material for nonaqueous electrolyte secondary batteries

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United States of America Patent

PATENT NO 10038189
SERIAL NO

15144096

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Abstract

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A transition metal composite hydroxide can be used as a precursor to allow a lithium transition metal composite oxide having a small and highly uniform particle diameter to be obtained. A method also is provided for producing a transition metal composite hydroxide represented by a general formula (1) MxWsAt(OH)2+α, coated with a compound containing the additive element, and serving as a precursor of a positive electrode active material for nonaqueous electrolyte secondary batteries. The method includes producing a composite hydroxide particle, forming nuclei, growing a formed nucleus; and forming a coating material containing a metal oxide or hydroxide on the surfaces of composite hydroxide particles obtained through the upstream step.

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Patent Owner(s)

  • SUMITOMO METAL MINING CO. LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fukui, Atsushi Niihama, JP 269 2271
Toya, Hiroyuki Niihama, JP 52 527

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