Lithium ion battery electrolyte and lithium ion battery containing electrolyte

摘要: The invention provides a lithium ion battery electrolyte and containing the electrolyte. includes salt, multi-element organic solvent, film-forming additive, an SEI film shape modifier impregnating salt is formed by selecting mixing at least two of hexafluorophosphate, tetrafluoroborate, difluoroborate, imidodisulfuryl fluoride bis(oxalate)borate, concentration in 0.75-1.5 mol/L. batteryis long cycle life, good high-temperature storage performance life 55 DEG C, excellent low-temperature performance, meets requirements for various performances power batteries actual running process electric buses.