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Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

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A Poly(ionic liquid) Gel Electrolyte for Efficient all Solid Electrochemical Double-Layer Capacitor.

M Taghavikish¹, S Subianto¹, Y Gu²

¹University of South Australia, Mawson Lakes Campus, Adelaide, South Australia, Australia.

Scientific Reports

|July 21, 2018

Summary

This summary is machine-generated.

Researchers developed a novel polyionic liquid gel electrolyte for flexible electronics. This new material offers stability and good mechanical properties, making it suitable for solid-state, flexible supercapacitors.

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Area of Science:

Materials Science
Electrochemistry
Polymer Science

Background:

Polyionic liquid based gels are crucial for flexible electronics like wearable devices and biosensors.
Existing methods often involve post-polymerization impregnation, which can be less efficient.

Purpose of the Study:

To develop a novel supported liquid gel electrolyte using in-situ ionic liquid entrapment during polymerization.
To create a stable and mechanically robust gel electrolyte for advanced electronic applications.

Main Methods:

Synthesized a chemically crosslinked polyionic liquid gel electrolyte (PIL) using 2-hydroxyethylmethacrylate (HEMA) and a polymerizable ionic liquid (DVIMBr).
Utilized an ionic liquid (1-butyl-3-methylimidazolium hexafluorophosphate) as the polymerization solvent for in-situ entrapment.
Characterized the material using thermal analysis, infrared spectroscopy, and dynamic mechanical analysis.

Main Results:

The developed polyionic liquid gel electrolyte demonstrated good thermal stability and mechanical properties.
In-situ entrapment of ionic liquid was achieved during polymerization and crosslinking.
Electrochemical analysis confirmed suitability for solid-state, flexible supercapacitors.

Conclusions:

The novel supported liquid gel electrolyte offers a promising alternative for flexible electronic devices.
The in-situ polymerization method enhances ionic liquid entrapment and material performance.
The material is well-suited for next-generation solid-state, flexible supercapacitors.