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Updated: Jan 14, 2026
06:44
From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
Published on: March 24, 2018
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Ultrahigh Ionic Conductivity in Halide Electrolytes Enabled by Anion Framework Flexibility Engineering
Rui Li1,2,3, Shenhao Wen1,2, Kaiqi Xu3,4
1Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, Guangdong, P. R. China.
Journal of the American Chemical Society
|January 12, 2026
Summary
Researchers enhanced chloride solid electrolytes for better all-solid-state batteries by increasing anion framework flexibility. This strategy boosts ionic conductivity and improves battery performance, paving the way for advanced energy storage solutions.
Area of Science:
- Materials Science
- Electrochemistry
- Solid-State Chemistry
Background:
- Chloride-based solid electrolytes offer stability for all-solid-state batteries.
- Limited ionic conductivity in chlorides hinders their widespread application.
- Restricted ion transport is often caused by close-packed anion frameworks.
Purpose of the Study:
- To enhance anion framework flexibility in chloride electrolytes.
- To improve ionic conductivity for fast ion diffusion.
- To develop high-performance solid-state batteries.
Main Methods:
- Incorporating high-valent, electronegative cations to lower anion charge.
- Reducing lithium content to modify the framework.
- Utilizing computational modeling to understand ion transport mechanisms.
- Experimental validation of tailored chloride electrolytes.
Main Results:
- Achieved ionic conductivities up to 10.3 mS cm-1 at room temperature.
- Demonstrated enhanced anion framework flexibility with intensified libration and rotation.
- Solid-state batteries showed outstanding rate capacity and cycling stability (82.5% capacity after 20,000 cycles at 4C).
Conclusions:
- Lowering anion charge and increasing framework flexibility is an effective strategy for designing fast ion conductors.
- The study provides new insights into ion transport in chloride electrolytes.
- Developed chloride electrolytes offer a promising pathway for next-generation all-solid-state batteries.
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