Patent ID: 7482099

Claim:
An electrolyte for a lithium battery, comprising: a non-aqueous organic solvent; a lithium salt; and an additive represented by Formula 1: wherein: X is selected from the group consisting of O, S, CR 2 , and NR, where R is selected form the group consisting of H, halogens and C 1 to C 8 alkyls, each of Y 1 and Y 2 is independently selected from the group consisting of O, S CR 2 , and NR, where R is selected from the group consisting of H, halogens, and C 1 to C 8 alkyls, Y 3 is selected from the group consisting of S, CR 2 , and NR, where R is selected from the group consisting of H, halogens, and C 1 to C 8 alkyls, and each of R a to R d is independently selected from the group consisting of H, halogens, C 1 to C 8 alkoxy groups, unsaturated C 2 C 8 alkyl groups and saturated C 1 to C 8 alkyl groups, wherein, if two or more of R a to R d are alkyl groups, such alkyl groups may optionally be combined to form cycles or heterocycles.