离子液体/聚合物电解质在双电层电容器中的应用

Application of ionic liquid/polymer electrolytes in the electric double layer capacitors

以P(VDF-HFP)为基体,与离子液体1-乙基-3-甲基咪唑钅翁四氟硼酸盐(EMIBF4)和1-丁基-3-甲基咪唑钅翁六氟磷酸盐(BMIPF6)制备出离子液体/聚合物电解质凝胶膜,并组装了活性炭电极双电层电容器(EDLC)。基于EMIBF4/P(VDF-HFP)和BMIPF6/P(VDF-HFP)聚合物电解质(质量比2∶1)的双电层电容器,比电容分别为38.5 F/g和20.9 F/g。基于EMIBF4/P(VDF-HFP)的双电层电容器显示了优良的电化学性能。

Ionic liquid/polymer electrolyte gel membranes were prepared by P（VDF-HFP） as matrix with ionic liquids 1-ethyl-3- methylimidazolium tetrafluoroborate （EMIPF4） and 1-butyl-3-methylimidazolium hexafluorophasphate （BMIPF6）. Electric double layer capacitors （EDLC） were assembled. The specific capacitance of EDLC based on EMIBF4/P（VDF-HFP） and BMIPF6/P （VDF-HFP） （mass ratio 2：1）were 38.5 F/g, 20.9 F/g, respectively. The EDLC based on EMIBFg/ P（VDF-HFP） showed excellent electrochemical performance.