阴极
材料科学
离子
钠
纳米技术
化学
冶金
物理化学
有机化学
作者
Xudong Gao,Xiaoyu Zhang,Xiangyu Liu,Yinfeng Tian,Qing-Qing Cai,Min Jia,Xiaoyu Zhang
标识
DOI:10.1002/smtd.202300152
摘要
In recent years, layered oxides have been extensively studied as promising cathode materials for sodium ion batteries. However, layered oxides undergo complex phase transitions during charge-discharge process, which adversely affects the electrochemical performance. High-entropy layered oxides as a unique design concept can effectively improve the cycling performance of cathode materials by virtue of the 2D ion migration channels between the layers. Based on the concepts of high-entropy and layered oxides, this paper reviews the research status of high-entropy layered oxides in the field of sodium-ion batteries, focusing on the connection between high-entropy and layered oxide phase transitions during electrochemical charging and discharging. Finally, the advantages of layered cathode materials based high-entropy are summarized, and the opportunities and challenges of future high-entropy layered materials are proposed.
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