Lithium ion secondary battery

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United States of America Patent

PATENT NO 10629953
APP PUB NO 20170125844A1
SERIAL NO

15298407

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Abstract

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Provided is a lithium ion secondary battery including: a positive electrode having a positive electrode active material layer disposed on a positive electrode current collector; a negative electrode having a negative electrode active material layer disposed on a negative electrode current collector; a separator; and an electrolyte solution. The positive electrode active material layer includes a positive electrode active material containing lithium nickel composite oxide. The electrolyte solution contains a disulfonic acid compound as an additive. A mass of the disulfonic acid compound adsorbed on the positive electrode is 1.0 g/m2 or less per unit surface area of the lithium nickel composite oxide.

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Patent Owner(s)

Patent OwnerAddress
ENVISION AESC JAPAN LTDZAMA-SHI KANAGAWA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nakagawa, Takashi Zama, JP 352 3216

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