Himani Chaudhary, Pramod K. Singh, Markus Diantoro
A solid polymer electrolyte based on chitosan was developed through solution casting, incorporating 1-propyl-1-methylpyrrolidinium bis(trifluoromethane sulfonylimide) ([PMP][TFSI]) ionic liquid (IL) as plasticizer and sodium iodide (NaI) as the salt. The formation of polymer–ion interactions was confirmed by Fourier-transform infrared (FTIR) spectroscopy. X-ray diffraction (XRD) and polarized optical microscopy (POM) have been used to carry out surface crystallinity and features. Thermal properties have been carried out using differential scanning calorimetry (DSC). Electrical characterization has been carried out using impedance spectroscopy, whereas ionic transference number (tion) was carried out using Wagner polarization method. Using maximum conducting IL-doped polymer electrolyte film sandwiched between two carbon electrodes, we have fabricated electric double-layer capacitor that shows a notable performance, which is confirmed by galvanostatic charge–discharge and cyclic voltammetry. © 2025 Wiley-VCH GmbH.
Center of Excellence for Solar Cell and Renewable Energy, Sharda School of Basic Sciences and Research, Sharda University, Uttar Pradesh, Greater Noida, India; Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Malang, Indonesia
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