Positive-electrode material for nonaqueous-electrolyte secondary battery, method for manufacturing the same, and nonaqueous-electrolyte secondary battery using said positive-electrode material

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United States of America Patent

PATENT NO 9991505
SERIAL NO

14379924

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Abstract

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Provided is a positive-electrode material for nonaqueous-electrolyte secondary batteries, the positive-electrode material being capable of achieving both high capacity and high output when used for a positive electrode for nonaqueous-electrolyte secondary batteries. Also, provided is a method for manufacturing the positive-electrode material for nonaqueous-electrolyte secondary batteries, wherein a lithium metal composite oxide powder is mixed with lithium tungstate, the lithium metal composite oxide powder being represented by a general formula LizNi1-x-yCoxMyO2 (wherein 0.10≤x≤0.35, 0≤y≤0.35, 0.97≤z≤1.20, and M is an addition element and at least one element selected from Mn, V, Mg, Mo, Nb, Ti, and Al) and comprising primary particles and secondary particles composed of aggregation of the primary particles.

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Patent Owner(s)

Patent OwnerAddress
SUMITOMO METAL MINING CO LTD11-3 SHIMBASHI 5-CHOME MINATO-KU TOKYO 105-8716

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hayashi, Tetsutaro Niihama, JP 26 39
Kokado, Rei Niihama, JP 10 150
Mori, Kensaku Niihama, JP 82 1017
Takagi, Masanori Niihama, JP 27 476

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