Citation: Rongzhan LOU, Qiaoling KANG, Zhenchao BAI, Dongyun LI, Yang XU, Rui WANG, Qingyi LU. Research progress of sodium ion high entropy layered oxide cathode[J]. Chinese Journal of Inorganic Chemistry, ;2025, 41(12): 2411-2428. doi: 10.11862/CJIC.20250142 shu

Research progress of sodium ion high entropy layered oxide cathode

1.
College of Materials and Chemistry, China Jiliang University, Hangzhou 310018, China
2.
School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China

Corresponding author: Qiaoling KANG, kangqiaoling@cjlu.edu.cn
Received Date: 25 April 2025
Revised Date: 20 October 2025

Figures(11)

Layered oxides have received extensive attention in the field of sodium-ion battery (SIB) due to their high theoretical capacity and ease of synthesis. However, the complex phase transitions caused by interlayer slip in layered oxides result in poor cycling stability, which limits their further application. The high-entropy strategy, which provides stable local structures, robust framework structures, and multifunctionality, is regarded as an effective means to modify sodium-ion layered cathode materials. This paper, by combining the research of our group in recent years and important domestic and international literature, reviews the latest research achievements of sodium-ion high-entropy layered oxide cathode materials from two aspects: synthesis methods and structure design. It deeply discusses the effects of synthesis methods (solid-phase method, sol-gel method, hydrothermal method, and coprecipitation method) and structure design (P2, O3, P2/O3, P2/P3, and P3/O3 types) on the structure and sodium storage performance of sodium-ion high-entropy layered oxides. Finally, the development of sodium-ion high-entropy layered oxides in the SIB field is prospectively discussed.
- sodium-ion batteries,
- high-entropy layered oxides,
- synthesis methods,
- structural design
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沈阳化工大学材料科学与工程学院沈阳 110142