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1. (WO2018181369) NONAQUEOUS ELECTROLYTE SOLUTION FOR BATTERIES, AND LITHIUM SECONDARY BATTERY

Pub. No.:    WO/2018/181369    International Application No.:    PCT/JP2018/012525
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Wed Mar 28 01:59:59 CEST 2018
IPC: H01M 10/0567
H01M 4/38
H01M 4/48
H01M 4/58
H01M 10/052
H01M 10/0568
H01M 10/058
H01G 11/62
H01G 11/64
Applicants: MITSUI CHEMICALS, INC.
三井化学株式会社
Inventors: FUJIYAMA, Satoko
藤山 聡子
SUGAWARA, Kei
菅原 敬
ONISHI, Hitoshi
大西 仁志
Title: NONAQUEOUS ELECTROLYTE SOLUTION FOR BATTERIES, AND LITHIUM SECONDARY BATTERY
Abstract:
A nonaqueous electrolyte solution for batteries, which contains additive A that is a compound (A), additive B that is at least one substance selected from the group consisting of lithium monofluorophosphate and lithium difluorophosphate, additive C that is a compound (C), and an electrolyte that is a lithium salt other than additive A, additive B and additive B. In the formulae, R1 represents a C1-6 hydrocarbon group that is substituted by F, a C1-6 hydrocarbon oxy group that is substituted by F, or F; M represents B or P; X represents a halogen; R represents a C1-10 alkylene group, a C1-10 haloalkylene group, a C6-20 arylene group or a C6-20 haloarylene group (and R may contain a substituent or a heteroatom in the structure); m represents a number of 1-3; n represents a number of 0-4; and q represents 0 or 1.