| 摘要 |
The present invention relates to a lithium secondary battery containing a cathode, an anode and a nonaqueous electrolyte having a lithium salt. The anode contains the compound of chemical formula 1 as an anode active material, and the electrolyte contains an additive that interacts with the compound of chemical formula 1 to reduce recovery capacity due to storage at high temperature, thereby providing a lithium secondary battery with an improved high temperature performance. The anode active material contains a compound represented by LiaNixMnyCozO2 (0.8<=a<1.2, 0.7<=x<1, 0<y<0.3 and 0<z<0.3). LiaNixMnyCozO2 (1) |
