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Vol. 17 (2025)

High-Entropy Electrode Materials: Synthesis, Properties and Outlook

https://doi.org/10.1007/s40820-024-01504-3
Dongxiao Li
College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
Chang Liu
School of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan 411104, People’s Republic of China
Shusheng Tao
College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
Jieming Cai
College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
Biao Zhong
College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
Jie Li
College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
Wentao Deng
College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
Hongshuai Hou
College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
Guoqiang Zou
College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
Xiaobo Ji
College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China

Corresponding Author: Guoqiang Zou

gq-zou@csu.edu.cn

Nano-Micro Letters, Vol. 17 (2025), Article Number: 22

Abstract

High-entropy materials represent a new category of high-performance materials, first proposed in 2004 and extensively investigated by researchers over the past two decades. The definition of high-entropy materials has continuously evolved. In the last ten years, the discovery of an increasing number of high-entropy materials has led to significant advancements in their utilization in energy storage, electrocatalysis, and related domains, accompanied by a rise in techniques for fabricating high-entropy electrode materials. Recently, the research emphasis has shifted from solely improving the performance of high-entropy materials toward exploring their reaction mechanisms and adopting cleaner preparation approaches. However, the current definition of high-entropy materials remains relatively vague, and the preparation method of high-entropy materials is based on the preparation method of single metal/low- or medium-entropy materials. It should be noted that not all methods applicable to single metal/low- or medium-entropy materials can be directly applied to high-entropy materials. In this review, the definition and development of high-entropy materials are briefly reviewed. Subsequently, the classification of high-entropy electrode materials is presented, followed by a discussion of their applications in energy storage and catalysis from the perspective of synthesis methods. Finally, an evaluation of the advantages and disadvantages of various synthesis methods in the production process of different high-entropy materials is provided, along with a proposal for potential future development directions for high-entropy materials.


Highlights:
1 The developmental history of high-entropy materials and the conceptual origin of “high entropy” is comprehensively reviewed.
2 The preparation methods of various high-entropy electrode materials are comprehensively reviewed.
3 The application properties of various high-entropy electrode materials in electrocatalysis and energy storage are comprehensively reviewed, with a prospective outlook on the future development of such materials.

Keywords

High-entropy Energy storage Electrode materials
Li, Dongxiao, Chang Liu, Shusheng Tao, Jieming Cai, Biao Zhong, Jie Li, Wentao Deng, Hongshuai Hou, Guoqiang Zou, and Xiaobo Ji. 2024. “High-Entropy Electrode Materials: Synthesis, Properties and Outlook”. Nano-Micro Letters 17 (September):22. https://doi.org/10.1007/s40820-024-01504-3.
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