Related Experiment Video
Updated: Jan 13, 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
13.4K
Interfacial Stability and Design Strategies for Halide Solid Electrolytes in High-Voltage All-Solid-State Sodium-Ion
Myeongcho Jang1,2, Eunji Kwon1, Chelin Jeon1
1Energy Storage Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea.
Small Methods
|January 8, 2026
Summary
All-solid-state sodium-ion batteries face challenges with halide solid electrolytes and high-voltage cathodes. New computational screening identifies protective coatings, enhancing interfacial stability for durable, high-energy energy storage.
Area of Science:
- Materials Science
- Electrochemistry
- Computational Chemistry
Background:
- All-solid-state sodium-ion batteries (ASSSIBs) using halide solid electrolytes (HSEs) show promise for high energy density.
- Interfacial stability between HSEs and high-voltage oxide cathodes is crucial but not fully understood.
Purpose of the Study:
- To evaluate the interfacial chemical compatibility between HSEs and high-voltage sodium cathode materials.
- To identify strategies for enhancing interfacial stability in ASSSIBs.
Main Methods:
- Mutual decomposition reaction energy calculations to assess interfacial chemical compatibility.
- High-throughput computational screening of 12,800 sodium-containing compounds to find suitable coating materials.
Main Results:
- Interfacial instability was revealed between HSEs and high-voltage cathodes, contradicting previous assumptions.
- Several effective coating materials were identified that suppress interfacial reaction driving forces.
Conclusions:
- Targeted interface design is necessary for stable ASSSIBs.
- Identified coatings promote stable solid electrolyte-cathode interfaces for high-voltage operation.
- This work provides a framework for developing durable, high-energy ASSSIBs.
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