US Patent 8034491 Organic electrolytic solution and lithium battery employing the same

An organic electrolytic solution is provided. The electrolytic solution comprises a lithium salt, an organic solvent comprising a first solvent having a high dielectric constant and a second solvent having a low boiling point, and a surfactant having a hydrophilic segment with two ends, each end being connected to a hydrophobic segment. The organic electrolytic solution effectively prevents the electrolytic solution from contacting the anode of the lithium battery to thereby suppress a side reaction on the surface of the anode. This enhances charge/discharge efficiency, lifespan and reliability of the battery.