Abstract: Embodiments of the present application provide an electrolyte and a lithium ion battery including the same. The electrolyte comprises a trinitrile compound of general formula (I), wherein R11, R12, and R13 are each independently selected from alkylene groups having 0 to 8 carbon atoms, and R11, R12, and R13 are not 0 simultaneously; and fluorosulfonyl silane acetate. The present application improves the cycle performance, rate performance and floating charge performance of lithium ion batteries by using the trinitrile compound and fluorosulfonyl silane acetate in combination.

Abstract: Embodiments of the present application provide an electrolyte and a lithium ion battery including the same. The electrolyte comprises a trinitrile compound of general formula (I), wherein R11, R12, and R13 are each independently selected from alkylene groups having 0 to 8 carbon atoms, and R11, R12, and R13 are not 0 simultaneously; and fluorosulfonyl silane acetate. The present application improves the cycle performance, rate performance and floating charge performance of lithium ion batteries by using the trinitrile compound and fluorosulfonyl silane acetate in combination.

Abstract: The present application provides an electrolytic solution, comprising: a carbonate compound of the formula (I), wherein R1, R2, R3 and R4 are each independently selected from hydrogen or halogen, and at least one of R1, R2, R3 and R4 is halogen; a carbonate compound of the formula (II), wherein R5 and R6 are each independently selected from hydrogen, halogen, (C1-C10)alkyl, (C1-C10)haloalkyl, (C1-C10)alkoxy or (C1-C10)haloalkoxy, and at least one of R5 and R6 is (C1-C10)haloalkyl or (C1-C10)haloalkoxy; and a nitrile compound, the nitrile compound being selected from the group consisting of a dinitrile compound of the formula (III), a dinitrile compound of the formula (IV), a trinitrile compound of the formula (V), and a combination thereof: where x is a positive integer from 1 to 10, and y is a positive integer from 2 to 10.