Patent ID: 7037624

Claim:
An electrolyte for a lithium battery, comprising: a non-aqueous organic solvent; a lithium salt; and an additive provided in an amount from 0.01 to 50 wt % selected from the group consisting of compounds represented by the following formula and combinations thereof, where each of Z 1 , Z 2 and Z 3 is independently selected from O and S, except that where Z 2 and Z 3 are O, then Z 1 is O, X is selected from the group consisting of NR where R is hydrogen or a C 1 to C 5 alkyl, S, O, SO 2 , and SO; and Y is selected from the group consisting of hydrogen, halogens, C 1 to C 5 alkyls, alkoxys, and C 6 to C 10 aryls.