| 摘要 |
An electrolyte for a lithium ion secondary battery and a lithium ion secondary battery comprising the electrolyte. The electrolyte comprises a non-aqueous organic solvent, a lithium salt, and at least one aromatic phosphate compound. Exothermic reactions are generally inhibited in the battery upon overcharge or during high-temperature storage to prevent an increase in the temperature of the battery, resulting in an improvement in safety. In addition, the battery generally exhibits good swelling stability during high-temperature storage as well as improved cycle life characteristics. The electrolyte can further comprise an ethylene carbonate-based compound. The presence of the ethylene carbonate-based compound generally leads to further improvements in the overcharge safety, high-temperature safety and cycle life characteristics of the battery. |
