Air-stability of sodium-based layered-oxide cathode materials

查看全文 作　　者：Hu-Rong [1,2,3]Yao;Lituo [1,4]Zheng;Sen [2,5]Xin;Yu-Guo [2,5]Guo

机构地区：[1]Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials,College of Physics and Energy,Fujian Normal University,Fuzhou,350117,China;[2]CAS Key Laboratory of Molecular Nanostructure and Nanotechnology,Institute of Chemistry,Chinese Academy of Sciences(CAS),Beijing,100190,China;[3]Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering,Fuzhou,350117,China;[4]University of Chinese Academy of Sciences,Beijing,100049,China;[5]C Innovation Laboratory,Contemporary Amperex Technology Ltd.(CATL),Ningde,352100,China

出　　处：《Science China Chemistry》索引2022年第65卷第6期,共12页

基　　金：supported by the National Natural Science Foundation of China (22179021);the Basic Science Center Project of National Natural Science Foundation of China (51788104);the Natural Science Foundation of Fujian Province (2019J01284);21C Innovation Laboratory Contemporary Amperex Technology Ltd (21C-OP-202011)。 摘　　要：Sodium-ion batteries have the potential to be an alternative to lithium-ion batteries especially for applications such as large-scale grid energy storage. The development of suitable cathode materials is crucial to the commercialization of sodium-ion batteries.Sodium-based layered-type transition metal oxides are promising candidates as cathode materials as they offer decent energy density and are easy to be synthesized. Unfortunately, most layered oxides suffer from poor air-stability, which greatly increases the cost of manufacturing and handling. The air-sensitivity severely limits the development and commercial application of sodium-ion batteries. A review that summarizes the latest understanding and solutions of air-sensitivity is desired. In this review,the background and fundamentals of sodium-based layered-type cathode materials are presented, followed by a discussion on the latest research on air-sensitivity of these materials. The mechanism is complex and involves multiple chemical and physical reactions. Various strategies are shown to alleviate some of the corresponding problems and promote the feasible application of sodium-ion batteries, followed by an outlook on current and future research directions of air-stable cathode materials. It is believed that this review will provide insights for researchers to develop practically relevant materials for sodium-ion batteries. 关键词：sodium-ion batteries layered oxide cathodes air-sensitivity mechanism and strategies

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Air-stability of sodium-based layered-oxide cathode materials

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