High‐Entropy Oxides for Rechargeable Batteries

• Published in: Advanced science Vol. 11; no. 25; pp. e2401034 - n/a
• Main Authors: Ran, Biao, Li, Huanxin, Cheng, Ruiqi, Yang, Zhaohui, Zhong, Yi, Qin, Yonghong, Yang, Chao, Fu, Chaopeng
• Format: Journal Article
• Language: English
• Published: Germany John Wiley and Sons Inc 01.07.2024; Wiley
• Subjects: configuration entropy;high‐entropy oxides;ionic conductivity;structural stability; Review; configuration entropy;high‐entropy oxides;ionic conductivity;structural stability
• ISSN: 2198-3844; 2198-3844
• DOI: 10.1002/advs.202401034

High‐entropy oxides (HEOs) have garnered significant attention within the realm of rechargeable batteries owing to their distinctive advantages, which encompass diverse structural attributes, customizable compositions, entropy‐driven stabilization effects, and remarkable superionic conductivity. Despite the brilliance of HEOs in energy conversion and storage applications, there is still lacking a comprehensive review for both entry‐level and experienced researchers, which succinctly encapsulates the present status and the challenges inherent to HEOs, spanning structural features, intrinsic properties, prevalent synthetic methodologies, and diversified applications in rechargeable batteries. Within this review, the endeavor is to distill the structural characteristics, ionic conductivity, and entropy stabilization effects, explore the practical applications of HEOs in the realm of rechargeable batteries (lithium‐ion, sodium‐ion, and lithium‐sulfur batteries), including anode and cathode materials, electrolytes, and electrocatalysts. The review seeks to furnish an overview of the evolving landscape of HEOs‐based cell component materials, shedding light on the progress made and the hurdles encountered, as well as serving as the guidance for HEOs compositions design and optimization strategy to enhance the reversible structural stability, electrical properties, and electrochemical performance of rechargeable batteries in the realm of energy storage and conversion. The review furnishes the evolving landscape of high‐entropy oxides (HEOs)‐based cell component materials, including anode, cathode, electrolytes, and electrocatalysts. This sheds light on the progress made and the hurdles encountered, guiding the HEOs compositions design and optimization to enhance the reversible structural stability and electrochemical performance of rechargeable batteries in the realm of energy storage and conversion.