ADDITIVE MIXTURE FOR THE ELECTROLYTE OF LITHIUM ION SECONDARY BATTERIES AND ELECTROLYTE OF LITHIUM ION SECONDARY BATTERIES COMPRISING SAID ADDITIVE MIXTURE

摘要

Disclosed herewith are an additive mixture for the electrolyte of lithium ion secondary batteries and electrolyte of lithium ion secondary batteries comprising the said additive mixture. The additive mixture comprises biphenyl based compound 0.5-95.4 wt%, cyclohexyl benzene based compound 0.1-93.8 wt%, vinylene carbonate 0.4-93.2 wt%, t-alkyl benzene based compound 0.5-96.5 wt%, and phenyl vinyl sulfone 0.5-95.8% based on total weight of the additive mixture.