LIQUID ELECTROLYTE FOR LITHIUM-SULFUR SECONDARY BATTERY AND LITHIUM-SULFUR SECONDARY BATTERY COMPRISING SAME

The present disclosure relates to an electrolyte solution for a lithium-sulfur secondary battery and a lithium-sulfur secondary battery comprising the same, more particularly to an electrolyte solution for a lithium-sulfur secondary battery containing a lithium salt and a non-aqueous solvent, wherein the non-aqueous solvent comprises an ether-based solvent and a nonsolvent, the ether-based solvent comprises a linear ether and a cyclic ether, and the nonsolvent comprises a compound having a specific structure.