A new solid-state electrolyte based on polymeric ionic liquid for high-performance supercapacitor

被引：0
作者：
Xinge Wen
Tao Dong
Ao Liu
Shuohang Zheng
Shimou Chen
Yifan Han
Suojiang Zhang
机构：
[1] Zhengzhou University,School of Chemical Engineering and Energy
[2] Chinese Academy of Sciences,Beijing Key Laboratory of Ionic Liquids Clean Process, State Key Laboratory of Multiphase Complex Systems, CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering
来源：
Ionics | 2019年 / 25卷
关键词：
Polymeric ionic liquid; Solid-state electrolyte; Supercapacitor; High conductivity;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
As a polymer host, one polymeric ionic liquid poly(methyl methacrylate-1-vinyl-3-ethyl-imidazolium bis(trifluoromethylsulfonyl) imide) (abbr. P(MMA-co-VEImTFSI)) was successfully synthesized and characterized. Four poly(vinylidene fluoride-co-hexafluoropropylene) (abbr. PVDF-HFP)-based polymer electrolytes were prepared by blending 0, 5,15, and 25 wt% P(MMA-co-VEImTFSI). The electrochemical performances of the prepared electrolytes were studied carefully. The results revealed that increasing the polymeric ionic liquid content, the ionic conductivity of the polymer electrolytes could be enhanced and it obeyed the Arrhenius rule. The highest ionic conductivity of the polymer electrolytes was up to 2.09 × 10−3 S cm−1 at room temperature. The polymer with 25 wt% polymeric ionic liquid showed an excellent electrochemical performance for supercapacitor electrolyte. After 2000 cycles, the retention of capacitance in P(MMA-co-VEImTFSI)-based polymer electrolyte was above 80%. It implied that the present P(MMA-co-VEImTFSI) polymeric ionic liquid was a decent component candidate in the high-performance polymer electrolytes.
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页码：241 / 251
页数：10
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