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High-Entropy Sulfides in Electrochemical Energy Storage: Evolution, Advanced Applications, and Future Prospects
Tong Yuan1, Qisheng Zang1, Hao Yu1
1Powder Metallurgy Research Institute, Central South University , Changsha410083, China.
Nano Letters
|August 12, 2026
Summary
High-entropy sulfides offer advanced energy storage by combining ionic conductivity and tunable structures. Optimal design balances structural frameworks with moderate entropy for enhanced stability and performance.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- High-entropy sulfides (HESs) merge high ionic conductivity of sulfides with high-entropy design for energy storage.
- HESs show potential in solid-state electrolytes, lithium-sulfur batteries, lithium/sodium-ion batteries, and supercapacitors.
Purpose of the Study:
- To systematically review the development of HESs in energy storage applications.
- To analyze the composition-structure-performance relationships in HESs.
- To provide guidance for future HES design and validation.
Main Methods:
- Literature review and critical examination of existing research on HESs.
- Analysis of structure-property relationships, focusing on ionic conductivity, cycle life, rate capability, and capacitance.
- Synthesis of insights on the roles of crystal structure and configurational entropy.
Main Results:
- Crystal structure is the primary determinant of performance windows for HESs.
- Configurational entropy enhances structural stability and transport homogeneity.
- Effective HES design involves combining favorable structures with moderate entropy and nanoscale engineering.
Conclusions:
- Maximizing entropy is not always the optimal strategy for HES development.
- A balanced approach integrating structural frameworks, moderate entropy, and nanoscale architectures is most effective.
- Further validation in practical full cells is crucial to confirm the intrinsic benefits of high-entropy effects.
Keywords:
High-entropy sulfideslithium/sodium-ion batterieslithium−sulfur batteriessolid-state electrolytessupercapacitorsMore Related Videos
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