Patent ID: 9728809
Date: 2017-08-08
CPC Classifications: B60K,B60Y,H01M,Y02E,Y02P,Y02T

Claim:
1. A nonaqueous electrolyte battery comprising: a positive electrode; a negative electrode containing a titanium-containing oxide; and a nonaqueous electrolyte consisting of (a) at least one compound selected from the group consisting of tris(trimethylsilyl)phosphate, tris(triethylsilyl) phosphate, tris(vinyldimethylsilyl) phosphate, bis(trimethylsilyl)methyl phosphate, bis(trimethylsilyl)ethyl phosphate, bis(trimethylsilyl)-n-propyl phosphate, bis(trimethylsilyl)-i-propyl phosphate, bis(trimethylsilyl)-n-butyl phosphate, bis(trimethylsilyl)trichloroethyl phosphate, bis(trimethylsilyl)trifluoroethyl phosphate, bis(trimethylsilyl)pentafluoropropyl phosphate, bis(trimethylsilyl)phenyl phosphate, dimethyltrimethylsilyl phosphate, diethyltrimethylsilyl phosphate, di-n-propyltrimethylsilyl phosphate, di-i-propyltrimethylsilyl phosphate, di-n-butyltrimethylsilyl phosphate, bis(trichloroethyl)trimethylsilyl phosphate, bis(trifluoroethyl)trimethylsilyl phosphate, bis(pentafluoropropyl)trimethylsilyl phosphate and diphenyltrimethylsilyl phosphate and (b) a sultone having an unsaturated hydrocarbon group, an organic solvent and an electrolyte dissolved in the organic solvent, wherein the organic solvent is at least one solvent selected from the group consisting of propylene carbonate, ethylene carbonate, vinylene carbonate, diethyl carbonate, dimethyl carbonate, methyl ethyl carbonate, tetrahydrofuran, 2-methyltetrahydrofuran, dioxolan, dimethoxyethane, diethoxyethane, γ-butyrolactone, acetonitrile and sulfolane, the concentration of (a) in the nonaqueous electrolyte is from 0.1 to 10% by weight, and the concentration of (b) in the nonaqueous electrolyte is from 0.1 to 2% by weight.