Wide-temperature-range difunctional electrolyte and preparation method and application thereof

The invention discloses a wide-temperature-range difunctional electrolyte and a preparation method and application thereof, the preparation raw materials comprise an electrolyte solvent, an electrolyte salt and an additive, and the concentration of the electrolyte salt in a mixed solution of all the raw materials is 0.8 mol/L-1 mol/L. According to the wide-temperature-range difunctional electrolyte, the comprehensive performance of the wide-temperature-range electrolyte is improved, and the obtained difunctional electrolyte has high ionic conductivity in a wide temperature range, high chemical stability, a wide voltage window, high diaphragm wettability and smaller viscosity and has wide application prospects in the field of metal battery electrolytes. 本发明公开了一种宽温域双功能电解液及其制备方法和应用，制备原料包括：电解液溶剂、电解质盐及添加剂，电解质盐在所有原料的混合溶液中的浓度为0.8mol/L～1mol/L。本发明的宽温域双功能电解液改善了宽温域电解液的综合性能，得到的双功能电解液具有宽温度范围内的高离子电导率，高的化学稳定性，宽的电压窗口，高的隔膜浸润性，更小的黏度，在金属电池电解质领域具有广泛的应用前景。