High-concentration water system/organic mixed electrolyte for wide-temperature-range non-combustible super capacitor and application of high-concentration water system/organic mixed electrolyte

The invention discloses a wide-temperature-range non-combustible super-capacitor high-concentration water system/organic mixed electrolyte which comprises electrolyte salt, water and ethylene glycol, and the mass fraction of an organic solvent in the total solvent is 10-75%. The invention also discloses an application of the wide-temperature-range and non-combustible super capacitor high-concentration water system/organic mixed electrolyte in a super capacitor. According to the electrolyte provided by the invention, by optimizing the components of the electrolyte, the working temperature range of the aqueous/organic mixed electrolyte is effectively widened, and meanwhile, the non-combustible characteristic of the aqueous electrolyte is kept. 本发明公开了一种宽温域、不可燃超级电容高浓度水系/有机混合电解液，所述电解液包括电解质盐、水和乙二醇，所述有机溶剂在总溶剂中的质量分数为10-75％之间。本发明还公开了上述宽温域、不可燃超级电容高浓度水系/有机混合电解液在超级电容器中的应用。本发明提供的电解液通过对电解液组分进行优化，有效拓宽水系/有机混合电解液的工作温度温度范围的同时，保持了水系电解液不可燃的特征。