ELECTROLYTE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Disclosed is an electrolyte solution for a lithium secondary battery, which is capable of not only operating at a low temperature by lowering resistance, but also securing the stable lifetime characteristics of the battery, and increasing the discharging capacity at a low temperature, and a lithium secondary battery comprising the same. The electrolyte solution for the lithium secondary battery comprises a first solvent comprising a glyme-based compound; a second solvent comprising a conjugated heterocyclic compound; a third solvent comprising a non-conjugated cyclic ether-based compound; and lithium salt.