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选择亲水型甲基烷基咪唑四氟硼酸盐和憎水型甲基烷基咪唑二(三氟甲基磺酰)亚胺盐两个系列的离子液体作为电解液,系统研究了纯离子液体及离子液体/混合有机溶剂EC-DMC-DEC(1:1:1,质量比)体系的电化学性能.实验发现:对于纯离子液体,在较低的温度范围内(298~323K),电导率与温度的关系符合Arrhenius方程,在更广的温度范围内,四氟硼酸盐系列离子液体符合VTF方程,而二(三氟甲基磺酰)亚胺盐系列有偏差.两个系列的离子液体的电化学窗口都在4V左右.对于离子液体/有机溶剂混合体系,随着浓度的增加,电导率有一最大值出现.
Hydrophilic methyl alkyl imidazole tetrafluoroborate and hydrophobic methyl alkyl imidazolium bis (trifluoromethylsulfonyl) imide were chosen as the electrolyte. The effects of pure ion (1: 1: 1, mass ratio) system of liquid and ionic liquid / mixed organic solvent.It was found that for the pure ionic liquids in the lower temperature range (298 ~ 323K) Conductivity and temperature are in accordance with the Arrhenius equation and the tetrafluoroborate series ionic liquids comply with the VTF equation over the wider temperature range while the bis (trifluoromethylsulfonyl) imide series is biased. Two series Of the ionic liquids have an electrochemical window of about 4 V. For the ionic liquid / organic solvent mixture, as the concentration increases, there is a maximum of conductivity.