Patent ID: 7517612

Claim:
An electrolytic solution for a lithium-sulfur battery, comprising: a lithium salt; an organic solvent; and a compound represented by Formula (I): wherein R 1 is selected from the group consisting of a hydrogen atom, a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C1-C30 alkoxy group, a substituted or unsubstituted C6-C30 aryl group, and a substituted or unsubstituted C8-C30 aralkenyl group; R 2 represents a group of Formula II or III; wherein R 3 , R 4 , R 5 , R 6 , R 7 and R 8 are independently a hydrogen atom, a C1-C5 linear or branched alkyl group, or a C1-C5 linear or branched alkoxy group; and X is an integer of 2 to 5.