Preparation method of novel ionic liquid electrolyte

The invention discloses a preparation method of a novel ionic liquid electrolyte. The preparation method comprises the following steps: drying ionic liquid brominated 1-butyl-3-methylimidazole, PVDF-HFP and LiBrO4 to control the water content in the ionic liquid brominated 1-butyl-3-methylimidazole, the PVDF-HFP and the LiBrO4; dissolving PVDF-HFP in a solvent to form a uniform solution; adding different amounts of ionic liquid and LiBrO4 to obtain clear viscous liquid; and drying to remove the solvent to obtain the novel ionic liquid electrolyte. Compared with the prior art, the electrolyte has safe flammability, excellent mechanical properties and excellent electrochemical properties. 本发明公开了一种新型离子液体电解液的制备方法，将离子液体溴化1-丁基-3甲基咪唑、PVDF-HFP和LiBrO4干燥控制其中的水含量；PVDF-HFP溶于溶剂形成均一溶液；加入不同量离子液体和LiBrO4，得到澄清的粘性液体；干燥除去溶剂得到新型离子液体电解液。本发明与现有技术相比，电解质具有安全的可燃性能、优异的力学性能，且优异的电化学性能。