Inorganic Chemicals Industry ›› 2022, Vol. 54 ›› Issue (5): 1-10.doi: 10.19964/j.issn.1006-4990.2021-0629

• Reviews and Special Topics •     Next Articles

Research progress on Na3V2(PO43 cathode materials for sodium ion batteries

DONG Peng1,2(),ZHOU Yingjie1,2,HOU Minjie1,2,YANG Dongrong1,2,DAI Yongnian1,2,3,LIANG Feng1,2,3()   

  1. 1.The National Engineering Laboratory for Vacuum Metallurgy,Kunming University of Science and Technology,Kunming 650093,China
    2.Key Laboratory for Nonferrous Vacuum Metallurgy of Yunnan Province,Kunming University of Science and Technology
    3.State Key Laboratory of Complex Nonferrous Metal Resources Clear Utilization,Kunming University of Science and Technology
  • Received:2021-10-20 Online:2022-05-10 Published:2022-05-31
  • Contact: LIANG Feng E-mail:2033813980@qq.com;liangfeng@kust.edu.cn

Abstract:

As a new generation of rechargeable sodium ion battery(SIBs) cathode material,Na3V2(PO43(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 large?scale 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.

Key words: Na3V2(PO43, sodium ion batteries, cathode material, reversible capacity, electronic conductivity

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