Patent ID: 8445142

Claim:
A lithium battery comprising: a cathode; an anode; and an organic electrolytic solution comprising: a lithium salt; an organic solvent; and a compound represented by Formula 1: wherein Z1 and Z2 each independently comprise a cyano group, an isocyano group, a substituted or unsubstituted dicyanoethylphosphino group, or a substituted or unsubstituted dialkoxyphosphoryloxy group, R1, R2, R3 and R4, which are the same or different, each independently comprise a hydrogen atom, a nitro group, an amino group, a hydroxy group, a halogen atom, a cyano group, a carboxyl group, a substituted or unsubstituted C1-C20 alkyl group, a substituted or unsubstituted C2-C20 alkenyl group, a substituted or unsubstituted C2-C20 alkynyl group, a substituted or unsubstituted C1-C20 alkoxy group, a substituted or unsubstituted C2-C20 alkoxycarbonyl group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C1-C20 heteroalkyl group, a substituted or unsubstituted C3-C20 heteroaryl group, a substituted or unsubstituted C2-C20 alkylcarbonyl group, a substituted or unsubstituted C7-C30 arylcarbonyl group, or a substituted or unsubstituted C4-C30 heteroarylcarbonyl group.