Polyionic Liquid-based Gel Polymer Electrolytes for Energy Storage Device Applications

Submission Deadline: 31 July 2026 View: 608 Submit to Special Issue

Guest Editor(s)

Prof. Dr. Subhratanu Bhattacharya

Email: subhratanu_b@klyuniv.ac.in

Affiliation: Department of Physics, University of Kalyani, Nadia, India

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Research Interests: Ionogel; Crystallization Kinetics; Supercapacitors; Lithium Battery electrolytes; Conducting polymer

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Summary

Poly(ionic liquid)-based gel polymer electrolytes (PIL-GPEs) represent a transformative class of ion-conducting materials that combine the superior ionic conductivity, wide electrochemical windows, non-volatility, and safety of ionic liquids with the mechanical robustness and processability of polymer networks. These hybrid systems are rapidly advancing energy storage technologies—supercapacitors, lithium/sodium-ion batteries, and flexible/wearable devices—by overcoming limitations of traditional liquid electrolytes (leakage, flammability) and solid polymers (low conductivity, poor interfaces).

Recent breakthroughs in polymerizable ionic liquids, crosslinked PIL architectures, hybrid ionogels, and multifunctional designs have yielded PIL-GPEs with ionic conductivities exceeding 10⁻³ S cm⁻¹, stability windows >4–5 V, self-healing properties, and exceptional device performance: >200 F g⁻¹ in supercapacitors, stable cycling in high-voltage batteries, and flexibility for next-gen electronics. Yet, challenges persist in optimizing ion mobility vs. mechanical strength, scaling synthesis, ensuring long-term stability, and tailoring for diverse chemistries (Li⁺, Na⁺, multivalent ions).

 

This special issue invites original research and reviews on PIL-GPEs for energy storage, emphasizing:

    1. Novel PIL monomers, crosslinking strategies, and hybrid formulations

    2. Structure–property relationships (conductivity, stability, rheology)

    3. Device-level demonstrations (supercapacitors, batteries, hybrid systems)

    4. Scalable fabrication, in-situ polymerization, and flexible/wearable applications

    5. Mechanistic studies (ion dynamics, interfacial phenomena, degradation)

    6. Sustainable/safe alternatives to conventional electrolytes

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Keywords

Polyionic Liquid-based Gel Polymer Electrolytes; PIL-GPEs; PIL monomers; bio-based hydrogels; sustainable polymer materials; supercapacitors; stimuli-responsive hydrogels; flexible/wearable applications

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