| 摘要 |
PURPOSE: A non-aqueous electrolyte is provided to improve charging/discharging cycle life time of a lithium secondary battery, restraining decomposition on an electrode surface of electrolyte, and to have excellent electrolyte-decomposition retraining effect even in high voltage condition. CONSTITUTION: A non-aqueous electrolyte comprises ionizable lithium salt, organic solvent, and mercapto silane compound in chemical formula 1. In chemical formula 1, R^1 is a vinyl group, an allyl group, a phenyl group, a benzyl group, or halogen-substituted or non-substituted C1-10 alkylene group, or a C3-8 cyclic alkyl group-branched linear C1-10 alkylene group. R^2, R^3, and R^4 is respectively and independently a vinyl group, phenyl group, or halogen-substituted or non-substituted C1-10 alkyl group, halogen, hydrogen, or a C3-8 cyclic alkyl group. |
