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Updated: Jan 6, 2026
11:04
Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
Published on: December 20, 2016
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Anion amphiprotic ionic liquids as protic electrolyte matrices allowing sodium metal plating
Piotr Jankowski1, Karolina Matuszek2, Marcel Treskow3
1Department of Physics, Chalmers University of Technology, Gothenburg, Sweden and Department of Energy Conversion and Storage, Technical University of Denmark, Kgs. Lyngby, Denmark. pioja@dtu.dk and Faculty of Chemistry, Warsaw University of Technology, 00-664 Warsaw, Poland.
Chemical Communications (Cambridge, England)
|October 3, 2019
Summary
Anion amphiprotic ionic liquid electrolytes show promise for sodium-ion batteries. These electrolytes offer good electrochemical stability and transport properties, enabling viable sodium-ion battery performance.
Area of Science:
- Electrochemistry
- Materials Science
- Energy Storage
Background:
- Sodium-ion batteries (SIBs) are an emerging alternative to lithium-ion batteries (LIBs).
- Electrolyte development is crucial for advancing SIB technology.
- Existing LIB knowledge requires adaptation for SIB electrolyte systems.
Purpose of the Study:
- To investigate anion amphiprotic ionic liquids (AAILs) as electrolytes for SIBs.
- To evaluate the electrochemical stability and transport properties of novel AAIL electrolytes.
- To assess the performance of SIBs utilizing these AAIL electrolytes.
Main Methods:
- Synthesis and characterization of two AAILs with trifluoromethylsulfonylamide (TFSAm) and inorganic HSO4- anions.
- Doping AAILs with NaTFSI salt.
- Electrochemical stability window determination.
- Ionic conductivity and ion-ion interaction studies.
- Sodium-ion battery performance evaluation using stripping/plating tests against sodium metal.
Main Results:
- The studied AAILs demonstrated electrochemical stability suitable for SIB applications.
- Transport properties, including ionic conductivity, were analyzed.
- Ion-ion interactions within the electrolytes were investigated.
- Stripping/plating tests indicated promising sodium-ion battery performance.
Conclusions:
- Anion amphiprotic ionic liquids are viable electrolyte candidates for sodium-ion batteries.
- These electrolytes offer a balance of electrochemical stability and ion transport.
- Further research into AAILs can contribute to the development of next-generation SIBs.
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