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Updated: Jan 17, 2026
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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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Non-flammable electrolytes for high-safety sodium-ion batteries
Sicheng Miao1, Ya You1, Zhi Wang1
1College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan 430072, China. fangyj@whu.edu.cn.
Chemical Society Reviews
|September 17, 2025
Summary
Developing non-flammable electrolytes is crucial for safer sodium-ion batteries (SIBs). This review covers advancements in liquid and solid-state electrolytes, addressing safety concerns for wider SIB adoption.
Area of Science:
- Electrochemistry
- Materials Science
- Energy Storage
Background:
- Sodium-ion batteries (SIBs) offer cost-effective energy storage but face safety challenges due to flammable liquid electrolytes.
- Battery safety incidents are linked to electrolyte properties, necessitating the development of non-flammable alternatives.
- Overcoming flammability issues is key to enabling the widespread application of SIB technology.
Purpose of the Study:
- To review recent advancements in non-flammable electrolytes for sodium-ion batteries.
- To discuss flame-retardant mechanisms and guide the design of safer electrolytes.
- To outline future research directions for intrinsically safe SIBs.
Main Methods:
- Summarization of SIB electrolyte systems.
- Discussion of flame-retardant mechanisms in solvents.
- Review of non-flammable liquid electrolytes (organic, aqueous, ionic liquids) and solid-state electrolytes (inorganic, polymer, composite).
Main Results:
- Comprehensive overview of various non-flammable electrolyte types for SIBs.
- Analysis of flame-retardant strategies for electrolyte design.
- Identification of progress and challenges in developing safe SIB electrolytes.
Conclusions:
- Non-flammable electrolytes are critical for enhancing the safety of sodium-ion batteries.
- Significant progress has been made in liquid and solid-state non-flammable electrolytes.
- Further research is needed to address remaining challenges and achieve intrinsically safe SIBs.
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