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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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An excellent rechargeable PP14TFSI ionic liquid dual-ion battery
Jiaxin Fan1, Zhixiong Zhang, Yinhua Liu
1School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China. cewhyuan@scut.edu.cn.
Chemical Communications (Cambridge, England)
|June 14, 2017
Summary
A novel ionic liquid dual-ion battery demonstrates exceptional performance with a high operating voltage and remarkable stability over 600 cycles. This advancement offers a promising new direction for high-performance energy storage solutions.
Area of Science:
- Electrochemistry
- Materials Science
- Energy Storage
Background:
- Developing advanced electrolytes is crucial for next-generation batteries.
- Ionic liquids offer unique properties for electrochemical applications.
- Dual-ion batteries present a promising architecture for high energy density.
Purpose of the Study:
- To develop and characterize an ionic liquid dual-ion battery.
- To evaluate the electrochemical performance and stability of the new system.
Main Methods:
- Synthesis and characterization of 1-butyl-1-methylpiperidinium bis(trifluoromethylsulfonyl)imide ionic liquid electrolyte.
- Fabrication and electrochemical testing of the dual-ion battery.
Main Results:
- The battery achieved a high discharge plateau starting at 4.4 V.
- A specific capacity of 82 mA h g-1 was observed.
- An ultrawide operating potential window of 1.0-5.0 V was established.
- Superior cycling stability with ~100% capacity retention over 600 cycles was demonstrated.
Conclusions:
- The developed ionic liquid electrolyte enables high-performance dual-ion battery operation.
- The system exhibits excellent voltage stability and long cycle life.
- This work highlights the potential of ionic liquids in advanced battery technologies.
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