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1. (WO2017022734) NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, LITHIUM ION SECONDARY BATTERY COMPRISING SAME, AND METHOD FOR PRODUCING NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY

Pub. No.:    WO/2017/022734    International Application No.:    PCT/JP2016/072570
Publication Date: Fri Feb 10 00:59:59 CET 2017 International Filing Date: Wed Aug 03 01:59:59 CEST 2016
IPC: H01M 4/133
H01M 4/13
H01M 4/134
H01M 4/1393
H01M 4/1395
H01M 4/36
H01M 4/38
H01M 4/48
H01M 4/587
H01M 4/62
H01M 10/052
H01M 10/0566
Applicants: MITSUI CHEMICALS, INC.
三井化学株式会社
SHIN-ETSU CHEMICAL CO., LTD.
信越化学工業株式会社
Inventors: NISHIURA, Katsunori
西浦 克典
SARUYAMA, Masaki
猿山 雅亮
SAKATA, Yoshihiro
坂田 佳広
ONISHI, Hitoshi
大西 仁志
EDA, Akira
江田 昭
OHASHI, Ken
大橋 健
FURUYA, Masahiro
古屋 昌浩
HIROSE, Takakazu
廣瀬 貴一
YOSHIKAWA, Hiroki
吉川 博樹
Title: NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, LITHIUM ION SECONDARY BATTERY COMPRISING SAME, AND METHOD FOR PRODUCING NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY
Abstract:
The present invention addresses the problem of providing: a negative electrode that is for a lithium ion secondary battery, that has high initial charge/discharge efficiency, and that has high energy density; a lithium ion secondary battery comprising the negative electrode for a lithium ion secondary battery; and a method for producing the negative electrode for a lithium ion battery that makes it possible to efficiently pre-dope an alkali earth metal or an alkali metal such as lithium. In order to solve this problem, this negative electrode for a lithium ion secondary battery comprises a negative electrode mixture layer containing at least: an alloy material (A) comprising tin or silicon capable of occluding lithium; carbon particles (B); an imide bond-containing polymer (C); and a polycyclic aromatic compound (D). The amount of the imide bond-containing polymer (C) within the negative electrode mixture layer is 3-13 mass%.