What question did this study set out to answer?

This research aims to develop a safer and more reliable hybrid electrolyte for sodium-ion batteries.

February 14, 2026Batteries0 citationsOpen Access

Hybrid Ionic Liquid–Organic Electrolyte Technologies for Sodium-Ion Batteries

DADaniela Ariaudo ARAntonio Rinaldi RARodolfo Araneo

Key Points

This research aims to develop a safer and more reliable hybrid electrolyte for sodium-ion batteries.
Developed a formulation based on EMIFSI ionic liquid and Diglyme cosolvent.
Qualified the hybrid electrolyte's thermal properties, ion transport properties, and electrochemical stability.
Evaluated performance in sodium-ion battery systems.
Improved conductivity of the hybrid electrolyte without compromising safety.
Maintained strong electrochemical stability in the ionic liquid-based formulation.
Showed effective ion transport properties in the sodium-ion battery setup.

Abstract

An innovative ionic liquid–organic hybrid electrolyte technology was developed to obtain safer and more reliable sodium-ion battery (SIB) systems. The formulation is based on the 1-ethyl-3-methyl-imidazolium bis(flurosulfonyl)imide (EMIFSI) ionic liquid combined with the Diglyme cosolvent, which showed good performance in SIBs. The hybrid electrolyte formulation was qualified in terms of thermal and ion transport properties and electrochemical stability. The results, reported and discussed in the present manuscript, showed how it is feasible to improve conductivity without decreasing the safety and electrochemical stability of ionic liquid-based electrolytes.

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