钠离子电池正极材料Na_(3)V_(2)(PO_(4))_(3)研究进展  

Research progress on Na_(3)V_(2)(PO_(4))_(3) cathode materials for sodium ion batteries

作　　者：东鹏 周英杰 侯敏杰 杨冬荣 戴永年[1,2,3] 梁风[1,2,3] DONG Peng;ZHOU Yingjie;HOU Minjie;YANG Dongrong;DAI Yongnian;LIANG Feng(The National Engineering Laboratory for Vacuum Metallurgy,Kunming University of Science and Technology,Kunming 650093,China;Key Laboratory for Nonferrous Vacuum Metallurgy of Yunnan Province,Kunming University of Science and Technology;State Key Laboratory of Complex Nonferrous Metal Resources Clear Utilization,Kunming University of Science and Technology)

机构地区：[1]昆明理工大学真空冶金国家工程实验室,云南昆明650093 [2]昆明理工大学云南省有色金属真空冶金重点实验室 [3]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

出　　处：《无机盐工业》2022年第5期1-10,共10页Inorganic Chemicals Industry

基　　金：国家自然科学基金项目(11765010);国家重点研发计划项目(2019YFC1907900);云南省科技厅应用基础研究计划项目(202001AW070004);云南省院士自由探索基金资助项目(202005AA160008);资源化学教育部重点实验室资助项目(KLRC_ME2001)。

摘　　要：作为新一代可充电钠离子电池(SIBs)正极材料,Na_(3)V_(2)(PO_(4))_(3)(NVP)具有理论容量大、化学稳定性好、使用寿命长、天然丰度高、价格低廉等优点,因此,受到了广泛的关注。综述了近年来NVP正极材料的储钠机理、制备方法和改性研究的最新进展。基于固有的晶体结构和离子迁移机制,总结了NVP正极材料的储钠机理。评价了不同制备方法对NVP正极材料的形貌、粒度分布、结晶度等的影响规律。此外,针对NVP正极材料严重的体积效应、电子导电率低、界面兼容性差等问题,总结了主流的改性方法。最后,展望了NVP正极材料在未来大规模储能领域的应用前景,阐述了其在电子导电率低以及体积效应等方面的挑战,并指明了在可控制备NVP以及开发高压电解液等方面的潜在研究方向。As a new generation of rechargeable sodium ion battery(SIBs)cathode material,Na_(3)V_(2)(PO_(4))_(3)(NVP)has attracted extensive attention due to its advantages of large theoretical capacity,good chemical stability,long service life,high natural abundance and low price.The latest advances in sodium storage mechanism,preparation methods and modification of NVP cathode materials were reviewed.Based on the inherent crystal structure and ion migration mechanism,the sodium storage mechanism of NVP cathode material was summarized.The effect law of different preparation methods on the morphology,particle size distribution,and crystallinity of NVP cathode materials was evaluated.In addition,the main modification methods of NVP cathode materials were summarized for serious volume effect,low electronic conductivity,poor interface compatibility and other problems.Finally,the future application prospects of NVP cathode materials in largescale energy storage were prospected,the challenges of low electronic conductivity and volume effect were discussed.The potential research directions in controllable preparation of NVP and development of high pressure electrolyte were pointed out.

关 键 词：Na_(3)V_(2)(PO_(4))_(3) 钠离子电池 正极材料 可逆容量 电导率 

分 类 号：TQ131.12[化学工程—无机化工]