| 摘要 |
The present invention relates to an electrolyte additive, and electrolyte and lithium secondary battery comprising the electrolyte additive. The additive has the structure of chemical formula 1, when it is applied as an electrolyte additive, it can improve discharging capacity of the lithium secondary battery, and cycle life time characteristic remarkably. In the chemical formula 1, R1- R4, X1, X2, l, m, n, p and q are defined in the detailed statement. |
