Ion Conduction Dynamics, Characterization, and Application of Ionic Liquid Tributyl Methyl Phosphonium Iodide (TMPI)-Doped Polyethylene Oxide Polymer Electrolyte

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Suneyana Rawat, Monika Michalska, Pramod K. Singh, Karol Strzałkowski, Nisha Pal, Markus Diantoro, Diksha Singh, Ram Chandra Singh

2025 Polymers Vol. 17 Issue 14 Article Cited by 1 Quartile

Abstract

The increasing demand for high-performance energy storage devices has stimulated interest in advanced electrolyte materials. Among them, ionic liquids ((Formula presented.)) stand out for their thermal stability, wide electrochemical windows, and good ionic conductivity. When doped into polymeric matrices, these ionic liquids form hybrid polymeric electrolytes that synergize the benefits of both liquid and solid electrolytes. This study explores a polymeric electrolyte based on polyethylene oxide ((Formula presented.)) doped with tributylmethylphosphonium iodide (Formula presented.) and ammonium iodide ((Formula presented.)), focusing on its synthesis, structural and electrical properties, and performance in energy storage devices such as dye-sensitized solar cells and supercapacitors. Strategies to improve its ionic conductivity, mechanical and chemical stability, and electrode compatibility are also discussed, along with future directions in this field. © 2025 by the authors.

Affiliations

Centre of Excellence in Solar Cells & Renewable Energy, Department of Physics and Environmental Science, SSES, Sharda University, Greater Noida, 201310, India; Department of Chemistry and Physico-Chemical Processes, Faculty of Materials Science and Technology, VŠB-Technical University of Ostrava, 17. listopadu 2172/15, Ostrava-Poruba, 708 00, Czech Republic; Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, Torun, 87-100, Poland; Department of Physics, Faculty of Mathematics and Natural Science, Universitas Negeri Malang, Semarang 5, Malang, 65145, Indonesia