Li—Ni composite oxide particles and process for producing the same, and non-aqueous electrolyte secondary battery

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United States of America Patent

PATENT NO 9764962
SERIAL NO

14111590

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Abstract

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The present invention provides lithium composite compound particles having good high-temperature storage property and excellent cycle characteristics as an active substance for a non-aqueous electrolyte secondary battery, and a secondary battery using the lithium composite compound particles. The Li—Ni composite oxide particles for a non-aqueous electrolyte secondary battery according to the present invention have a BET specific surface area of 0.05 to 0.8 m2/g; an atomic ratio (Ma/Ni) of a concentration of an amphoteric metal to a concentration of Ni on an outermost surface of the respective Li—Ni composite oxide particles is 2 to 6; and the concentration of the amphoteric metal on the outermost surface of the respective Li—Ni composite oxide particles is higher than a concentration of the amphoteric metal at a position spaced by 50 nm from the outermost surface toward a center of the respective Li—Ni composite oxide particles.

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Patent Owner(s)

  • TODA KOGYO CORP.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Imahashi, Taiki Kitakyushu, JP 6 65
Kikuya, Kazuhiko Kitakyushu, JP 11 161
Sadamura, Hideaki Sanyo Onoda, JP 35 346
Watanabe, Hiroyasu Kitakyushu, JP 21 121

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