| abstract |
The present invention relates to a compound, an electrolyte and a lithium ion battery, wherein the general structural formula of the compound is shown in formula (1) or formula (2), Wherein, R 1 and R 2 are independently H, halogen, CN, NO 2 , alkyl, haloalkyl, phosphate or polyether group; or, R 1 and R 2 are combined together to form a ring; R 3 , R4 is independently H, halogen, CN, NO2, alkyl, haloalkyl, phosphate or polyether ; alternatively, R3 and R4 are combined together to form a ring. In the present invention, by adding the compound represented by formula (1) or formula (2) to the electrolyte, the compound can effectively inhibit the occurrence of side reactions in the electrolyte, maintain the stability of the electrode, and improve the charge-discharge cycle performance and high temperature of the full battery. performance. |