钠离子电池正极材料氟磷酸钒钠的掺杂改性研究  

Doping Modification of Sodium Vanadium Fluorophosphate as Cathode Material for Sodium Ion Batteries

作　　者：胡芳诚 胡均贤[1,2,3,4] 田阳 王东[1,2,3] 马廷壮[1,2,3] 王立鹏名[1,2,3] Fangcheng Hu;Junxian Hu;Yang Tian;Dong Wang;Tingzhuang Ma;Lipeng Wang(Key Laboratory for Nonferrous Vacuum Metallurgy of Yunnan Province,Kunming University of Science and Technology,Kunming 650093,China;National Engineering Research Center of Vacuum Metallurgy,Kunming University of Science and Technology,Kunming 650093,China;Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology,Kunming 650093,China;State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization,Kunming University of Science and Technology,Kunming 650093,China)

机构地区：[1]昆明理工大学云南省有色金属真空冶金重点实验室,昆明650093 [2]昆明理工大学真空冶金国家工程研究中心,昆明650093 [3]昆明理工大学冶金与能源工程学院,昆明650093 [4]昆明理工大学省部共建复杂有色金属资源清洁利用国家重点实验室,昆明650093

出　　处：《化学进展》2025年第3期439-454,共16页Progress in Chemistry

基　　金：云南省有色金属真空冶金顶尖团队(No.202305AS350012);云南省基础研究计划项目(Nos.202301BE070001-014,202301AT070150)资助。

摘　　要：钠离子电池倍率性能优异,高低温性能稳定,钠资源丰富且成本低,在大规模储能和低速电动车领域具有良好的应用前景。正极材料决定着钠离子电池的工作电压与循环性能,是直接影响钠离子电池整体性能的核心组成部分。其中,Na_(3)V_(2)(PO_(4))_(2)F_(3)(NVPF)具有优异的结构稳定性和高工作电位,但离子扩散速度慢和电子电导率低,需要通过元素掺杂等改性手段进一步提升性能。本文介绍了NVPF的背景、晶体结构和制备方法;详细总结了在NVPF材料的钠位、钒位、阴离子位等不同掺杂位点进行掺杂的改性进展;并分析了掺杂在NVPF材料中优化颗粒尺寸、增强晶格稳定性、改变晶格间距提升钠离子扩散速度、提高电子电导率的作用机理。本文从后续研究的角度出发,对NVPF材料的制备、掺杂位点以及作用效果进行了总结,并对掺杂改性发展前景进行展望。With excellent multiplication performance,stable high and low-temperature performance,abundant sodium resources and low cost,sodium-ion batteries have good application prospects in the field of large-scale energy storage and low-speed electric vehicles.The cathode material determines the working voltage and cycling performance of sodium-ion batteries,and is the core component that directly affects the overall performance of sodium-ion batteries.Among them,Na_(3)V_(2)(PO_(4))_(2)F_(3)(NVPF)has excellent structural stability and high working potential,but slow ion diffusion and low electronic conductivity,which need to be further improved by elemental doping and other modification means.This paper has introduced the background,crystal structure and preparation method of NVPF.Has summarized in detail the modification progress of doping at different doping sites,such as sodium,vanadium,and anionic sites in NVPF materials.The mechanisms of doping in NVPF materials were analyzed,which can optimize the particle size,enhance the lattice stability,change the lattice spacing to enhance the diffusion rate of sodium ions,and increase the electronic conductivity.Based on the above,this paper summarized the preparation,doping sites and effects of NVPF materials from the perspective of subsequent research,and have also looked ahead to the future prospects of doping modification.

关 键 词：钠离子电池 氟磷酸钒钠 制备方法 掺杂位点 作用机理 

分 类 号：TM912[电气工程—电力电子与电力传动] O614.112[理学—无机化学]