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Updated: Jul 1, 2026

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
Published on: August 12, 2013
Ion Conduction Dynamics, Characterization, and Application of Ionic Liquid Tributyl Methyl Phosphonium Iodide
Suneyana Rawat1, Monika Michalska2, Pramod K Singh1
1Centre of Excellence in Solar Cells & Renewable Energy, Department of Physics and Environmental Science, SSES, Sharda University, Greater Noida 201310, India.
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The increasing demand for high-performance energy storage devices has stimulated interest in advanced electrolyte materials. Among them, ionic liquids (ILs) 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 (PEO) doped with tributylmethylphosphonium iodide (TMPI) and ammonium iodide (NH4I), 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.
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