Work

Multifunctional phosphonium-based ionic liquid embedded polymer electrolyte for dual energy conversion and storage

Year: 2025

Type: article

Abstract: In the realm of green and sustainable energy use, solid electrolytes are recognized for their environmentally friendly and degradable properties. Simultaneously, significant efforts have been made to improve the ionic transport and interfacial stability of polymer electrolytes to facilitate the development of electrochemical devices. In this context, the influence of the phosphonium-based ionic liquid (PBILS), Tributylmethylphosphonium bis(trifluoromethane sulfonyl)imide, on the polyethylene oxide polymer electrolyte and its use in electrochemical applications is investigated. The optimized polymer electrolyte formulation, combined with 20 wt % ionic liquids, exhibits an ionic conductivity of approximately 7.17 × 10−4 S/cm at room temperature, along with a wide electrochemical stability window and remarkable thermal stability. The unique aspect of this work is the dual applicability of the PBIL-based polymer electrolyte, which was successfully used as a common electrolyte in both dye-sensitized solar cells (DSSCs) and electric double-layer capacitors (EDLCs). This dual functionality of the PBIL-based polymer electrolyte demonstrates its versatility, making it an exceptional candidate for energy storage and conversion systems.

Source: Journal of Science Advanced Materials and Devices

DOI: 10.1016/j.jsamd.2025.101084

Authors: Suneyana Rawat, Ram Chandra Singh, Monika Michalska, Serguei V. Savilov, Markus Diantoro, Pramod K. Singh

Institutions: Sharda University, VSB - Technical University of Ostrava, Lomonosov Moscow State University, State University of Malang

Language: English

Topic: Advanced Battery Materials and Technologies

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: gold

Estimated APC paid: $1,300