摘要
由于对可再生能源和清洁能源需求的空前增长,以及锂资源的短缺和分布不均,钠离子电池作为有竞争力的替代品越来越受到关注.钠离子层状氧化物材料,特别是锰层状氧化物材料,如P2-Na_(x)MnO_(2),P′2-Na_(x)MnO_(2),P2-Na_(0.67)Ni_(0.33)Mn_(0.67O2),O3-NaNi_(0.5)Mn_(0.5O2)等,具有结构简单、易于合成的优点,因此表现出较高的商业化生产可行性.然而,这些材料普遍面临的挑战是不可逆相变引起的不良循环性能.元素掺杂是抑制不可逆相变,改善材料性能的有效策略.本文综述了锰基层状氧化物材料中元素掺杂的研究进展,并探讨了元素掺杂对晶体结构和结构演化的影响.
Due to unprecedented growing demand for renewable and clean energy,as well as the shortage and uneven distribution of lithium resources,sodium-ion batteries(SIBs)are attracting increasing attention as a competitive alternative for lithium-ion batteries.Sodium ion layered oxide materials,particularly manganese-based layered oxide materials,including P2-Na_(x)MnO_(2),P′2-Na_(x)MnO_(2),P2-Na_(0.67)Ni_(0.33)Mn_(0.67O2),and O3-NaNi_(0.5)Mn_(0.5O2),have shown high feasibility for commercialization due to their simple structures and facile synthetic methods.However,a general challenge for these materials is the poor cycling performance caused by irreversible phase transitions.Elemental doping is an effective strategy to suppress the irreversible phase transitions and improve the performance.In this paper,we review the recent progress of elemental doping in manganese-based layered oxides and explore the effects of elemental doping on crystal structure and structural evolution of manganese-based layered oxide cathode materials.
作者
江浩然
钱广东
刘瑞
刘伟迪
陈亚楠
胡文彬
Haoran Jiang;Guangdong Qian;Rui Liu;Wei-Di Liu;Yanan Chen;Wenbin Hu(School of Materials Science and Engineering,Tianjin University,Tianjin 300072,China;School of Materials Science and Engineering,Shandong University of Science and Technology,Qingdao 266590,China;Australian Institute for Bioengineering and Nanotechnology,The University of Queensland,Brisbane,Queensland 4072,Australia)
基金
supported by the National Natural Science Foundation of China(22109091 and 91963113).
作者简介
Haoran Jiang obtained a Bachelor’s degree from Qingdao University of Science and Technology.She is currently a Master candidate of materials science and engineering at Tianjin University.Her research direction is energy storage SIBs;Corresponding author:陈亚楠,email:yananchen@tju.edu.cn。
