| 摘要 |
The present invention provides a lithium secondary battery comprising: a positive electrode including a positive electrode active material; and an electrolyte including a solvent and additives, wherein the positive electrode active material includes a transition metal oxide containing lithium, and the solvent includes hydrofluoroether. In addition, the additives include at least one selected from the group consisting of first additives represented by chemical formula 1, second additives represented by chemical formula 2, third additives represented by chemical formula 3, and forth additives represented by chemical formula 4. The lithium secondary battery of the present invention is capable of simultaneously improving cycle life characteristics and high temperature storage characteristics. |
