Method for producing lithium composite metal oxide, lithium composite metal oxide, and nonaqueous electrolyte secondary battery

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United States of America Patent

PATENT NO 9822015
APP PUB NO 20120244413A1
SERIAL NO

13513885

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Abstract

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The present invention provides a method of producing a lithium mixed metal oxide, a lithium mixed metal oxide and a nonaqueous electrolyte secondary battery. The method includes a step of calcining a mixture of one or more compounds of M wherein M is one or more elements selected from the group consisting of nickel, cobalt and manganese, and a lithium compound, in the presence of one or more inactive fluxes selected from the group consisting of a fluoride of A, a chloride of A, a carbonate of A, a sulfate of A, a nitrate of A, a phosphate of A, a hydroxide of A, a molybdate of A and a tungstate of A, wherein A is one or more elements selected from the group consisting of Na, K, Rb, Cs, Ca, Mg, Sr and Ba. The lithium mixed metal oxide contains nickel, cobalt and manganese, has a BET specific surface area of from 3 m2/g to 15 m2/g, and has an average particle diameter within a range of 0.1 μm or more to less than 1 μm, the diameter determined by a laser diffraction scattering method.

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Patent Owner(s)

Patent OwnerAddress
SUMITOMO CHEMICAL COMPANY LIMITED2-7-1 NIHONBASHI CHUO-KU TOKYO 103-6020

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Imanari, Yuichiro Tsukuba, JP 33 292
Nakane, Kenji Tsukuba, JP 29 301
Pitteloud, Cedric Saint-Louis, FR 10 89
Shimano, Satoshi Tsukuba, JP 19 55
Takamori, Kenji Tsukuba, JP 26 126

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