Efficient Electrolyte to Improve the Surface Stability of Graphite Anodes and lithium ion rechargeable battery including thereof

摘要

The present invention relates to a lithium ion secondary battery electrolyte, characterized in that it comprises a compound represented by the formula (1), an organic solvent and a lithium salt, and when using the lithium ion secondary battery electrolyte of the present invention, lifespan at high temperature and room temperature It is possible to provide a lithium ion secondary battery having excellent performance which is improved and forms an excellent SEI layer even for a high capacity positive electrode material.