Organic electrolytic solution and lithium battery employing the same

An organic electrolytic solution, comprising:

• a lithium salt;
• an organic solvent;
• a radical initiator represented by Formula 1 below;
• and
• a polymerizable monomer represented by Formula 2 below:
• R1—N2+X− <Formula 1>
• wherein R1 is a substituted or unsubstituted C1-20 alkyl group, a substituted or unsubstituted C6-20 aryl group, or a substituted or unsubstituted C7-20 alkylaryl group,
• X− is at least one anion selected from the group consisting of BF4−, Cl−, PF6−, ClO4−, HSO4−, CF3SO3−, C2F5SO3−, (CF3SO2)3C−, (C2F5SO2)3C−, (CF3SO2)2N−, and (CF2F5SO2)2N−, and mixtures thereof, and
• wherein R2, R3, and R4 are each independently hydrogen, a halogen group, a halogenated C1-4 alkyl group, a C1-6 alkylcarbonyl group, a C1-6 alkoxycarbonyl group, a nitro group, or a halogenated benzyl group.