<p>In the present study, Zn<sup>2+</sup>-ion-conducting polymer electrolyte (PE) films were synthesized using PVDF-co-HFP, PEO, Zinc Trifluoromethanesulfonate, and addition of ionic liquid. The film exhibited high ionic conductivity (<i>σ</i><sub>rt</sub> ~ 3.20 × 10<sup>–4</sup> S·cm<sup>−1</sup>) at room temperature, low activation energy (<i>E</i><sub><i>a</i></sub> ~ 0.21&#xa0;eV), and a high ionic transference number (<i>t</i><sub>ion</sub> ~ 0.99). Electrochemical property studies including cyclic voltammetry, open circuit potential, and charge–discharge analysis were performed for the fabricated cells with the synthesized PEs, Zn and V<sub>2</sub>O<sub>5</sub>-based electrodes. The cell achieved a maximum specific capacitance of 46.43 F·g<sup>−1</sup>. X-ray Diffraction, FESEM and DSC analyses supported the observed electrical and electrochemical behavior. These results various confirm the suitability of ionic liquid-incorporated PE films for hybrid supercapacitor applications.</p> Graphical abstract <p></p>

错误:搜索内容不能为空,请输入英文关键词
错误:关键词超出字数限制,请精简
高级检索

Investigation of Zn2+-ion-conducting polymer electrolytes incorporated with room temperature ionic liquid using Zn-V2O5-based electrodes for energy storage applications

  • Suleman Kujur,
  • Y. K. Mahipal,
  • Niranjan Kumar

摘要

In the present study, Zn2+-ion-conducting polymer electrolyte (PE) films were synthesized using PVDF-co-HFP, PEO, Zinc Trifluoromethanesulfonate, and addition of ionic liquid. The film exhibited high ionic conductivity (σrt ~ 3.20 × 10–4 S·cm−1) at room temperature, low activation energy (Ea ~ 0.21 eV), and a high ionic transference number (tion ~ 0.99). Electrochemical property studies including cyclic voltammetry, open circuit potential, and charge–discharge analysis were performed for the fabricated cells with the synthesized PEs, Zn and V2O5-based electrodes. The cell achieved a maximum specific capacitance of 46.43 F·g−1. X-ray Diffraction, FESEM and DSC analyses supported the observed electrical and electrochemical behavior. These results various confirm the suitability of ionic liquid-incorporated PE films for hybrid supercapacitor applications.

Graphical abstract