NON-AQUEOUS ELECTROLYTIC SOLUTION FOR BATTERY

摘要

PURPOSE: A non-aqueous electrolytic solution for battery is provided to prolong the life of battery without reducing an efficiency of charge and discharge of battery and performance at low temperature. CONSTITUTION: The non-aqueous electrolytic solution consisting of organic solution and lithium salt comprises phenyl sulfonyl compounds represented by formula 1. Wherein R and R' are H or alkyl group having 1 to 4 carbon atoms. The content of phenyl sulfonyl compounds is 0.1 to 5 wt.% based on total non-aqueous electrolytic solution. The organic solution is one and more selected from the group consisting of ethylene carbonate, propylene carbonate, γ-butyrolactone, dimethyl carbonate, diethyl carbonate, dipropyl carbonate, methyl propyl carbonate, methyl acetate, ethyl acetate, propyl acetate, methylpropionic acid, ethylpropionic acid and fluorobenzene.