ELECTROLYTE SOLUTION FOR SECONNDARY LITHIUM BATTERY AND SECONDARY LITHIUM BATTERY USING THE SAME

摘要

The present invention provides electrolyte for a lithium secondary battery and the lithium secondary battery including the same. The electrolyte for the lithium secondary battery contains lithium salt, a non-aqueous organic solvent, and an additive, and the additive contains at least one compound selected from a first compound denoted by chemical formula 1, and a second compound denoted by chemical formula 2. In the chemical formaul 1 and 2, X1-X4 and Y1-Y4 are independently oxygen (O), sulfur (S), selenium (Se), or tellurium (Te).