High-voltage fast-charging lithium ion battery electrolyte containing methyl trifluoroacrylate

The invention discloses a high-voltage fast-charging lithium ion battery electrolyte containing trifluoromethyl acrylate. The electrolyte is prepared from the following components in percentage by mass: 10-15% of lithium salt, 0.5-50% of trifluoromethyl acrylate, 30-85% of an organic solvent and 0.1-5% of a functional additive. The electrolyte prepared by the invention has high thermal stability and chemical stability, and after the electrolyte is applied to a high-voltage fast-charging lithium battery, the cycle life, the fast-charging performance and the storage life of the battery can be improved. 本发明公开了一种含三氟丙烯酸甲酯的高电压快充锂离子电池电解液，由以下质量百分比的组分制成：锂盐10-15％、三氟丙烯酸甲酯0.5-50％、有机溶剂30-85％、功能添加剂0.1-5％。本发明制得的电解液具有高热稳定性和化学稳定性，将其应用于高电压快充锂电池后，能够提高电池循环寿命、快充性能和储存寿命。