摘要
层状氧化物由于其高理论容量和易于合成的特点,在钠离子电池(SIB)领域得到了广泛关注。然而,层状氧化物中层间滑移引起的复杂相变导致了较差的循环稳定性,限制了其进一步应用。高熵策略赋予了层状氧化物稳定的局部结构、坚固的骨架结构和多功能性,被视为改性钠离子层状正极材料的有效手段。本文分别从合成方法和结构设计2个方面结合本课题组近年来的研究及国内外的重要文献,综述了钠离子高熵层状氧化物正极材料的最新研究成果,深入探讨了合成方法(固相法、溶胶-凝胶法、水热法及共沉淀法)和结构设计(P2、O3、P2/O3、P2/P3和P3/O3型)对钠离子高熵层状氧化物结构及储钠性能的影响。最后,对高熵层状氧化物在SIB领域的发展进行了展望。
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.
作者
娄荣湛
康巧玲
白震超
李冬云
徐扬
王睿
陆轻铱
LOU Rongzhan;KANG Qiaoling;BAI Zhenchao;LI Dongyun;XU Yang;WANG Rui;LU Qingyi(College of Materials and Chemistry,China Jiliang University,Hangzhou 310018,China;School of Chemistry and Chemical Engineering,Nanjing University,Nanjing 210023,China)
出处
《无机化学学报》
北大核心
2025年第12期2411-2428,共18页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金青年科学基金项目(C类)(No.52503328)
浙江省大学生科技创新活动计划(新苗人才计划)项目(No.2025R409A013)资助。
关键词
钠离子电池
高熵层状氧化物
合成方法
结构设计
sodium‑ion batteries
high‑entropy layered oxides
synthesis methods
structural design
