, Volume 25, Issue 1, pp 241–251 | Cite as

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

  • Xinge Wen
  • Tao Dong
  • Ao Liu
  • Shuohang Zheng
  • Shimou Chen
  • Yifan HanEmail author
  • Suojiang ZhangEmail author
Original Paper


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.


Polymeric ionic liquid Solid-state electrolyte Supercapacitor High conductivity 


Funding information

This work was supported financially by the National Key R&D Program of China (No. 2017YFB0102000), the National Natural Science Foundation of China (91534109, 51561145020), Key Research Program of Frontier Sciences, CAS(QYZDY-SSW-JSC011), CAS/SAFEA International Partnership Program for Creative Research Teams (20140491518), and Science and Technology Open Cooperation Project of Henan province (No. 17210110019).


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.School of Chemical Engineering and EnergyZhengzhou UniversityZhengzhouChina
  2. 2.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 EngineeringChinese Academy of SciencesBeijingChina

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