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1. (WO2018199265) NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION BATTERY

Pub. No.:    WO/2018/199265    International Application No.:    PCT/JP2018/017085
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Fri Apr 27 01:59:59 CEST 2018
IPC: H01M 4/38
H01M 4/134
H01M 4/36
H01M 4/62
Applicants: SEKISUI CHEMICAL CO., LTD.
積水化学工業株式会社
Inventors: SUN, Ren-de
孫 仁徳
NOZATO, Shoji
野里 省二
NAKASUGA, Akira
中壽賀 章
Title: NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION BATTERY
Abstract:
The present invention is a negative electrode active material for a lithium ion battery, the negative electrode active material having a coating layer that includes amorphous carbon on the surface thereof, wherein the amorphous carbon constituting the coating layer has a ratio of a peak derived from a sp2 component measured by 13C solid-state NMR to a peak derived from a sp3 component, of 1 or larger, and a ratio of a peak derived from an aromatic carbon having a bond with a hydroxy group to a peak derived from the sp2 component, of 0.2 or less.