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电化学（中英文） ›› 2012, Vol. 18 ›› Issue (4): 318-321.  doi: 10.61558/2993-074X.2924

• 化学电源近期研究专辑（武汉大学 杨汉西教授主编） • 上一篇    下一篇

球磨微波法制备Li3V2(PO4)3/C及其电化学性能表征

 唐致远1*, 毛文峰1, 闫继1, 袁威1, 张新河2   

  1. 1. 天津大学化工学院，天津 300072；2. 迈科科技有限公司，广东 东莞 523800
  • 收稿日期:2011-11-24 修回日期:2012-03-10 出版日期:2012-08-28 发布日期:2012-03-15
  • 通讯作者: 唐致远 E-mail:zytang@tju.edu.cn
  • 基金资助:

    国家自然科学基金(No.20973124)和广东省重大科技专项（No.2009A080208001）资助

Synthesis and Electrochemical Characterization of Li3V2(PO4)3/C Cathode Material by Ball-Milling Assisted Microwave Method

 TANG  Zhi-Yuan1*, MAO  Wen-Feng1, YAN  Ji1, YUAN  Wei1, ZHANG  Xin-He2   

  1. 1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; 2. McNair Technology Co. Ltd，Dongguan 523800, Guangdong, China
  • Received:2011-11-24 Revised:2012-03-10 Published:2012-08-28 Online:2012-03-15
  • Contact: TANG Zhi-Yuan E-mail:zytang@tju.edu.cn

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摘要： 采用球磨微波法合成锂离子电池正极材料Li3V2(PO4)3/C，并研究了微波辐射时间对样品电化学性能的影响. 结果表明，640 W微波辐射18 min合成的材料，其结晶度高、粒径小而均匀. 该电极5C倍率下首次放电比容量达101.3 mAh?g-1，300周期循环，其放电比容量仍保持100.8 mAh?g-1，展示出良好的应用前景.

关键词: 锂离子电池, Li3V2(PO4)3/C, 微波合成

Abstract: The cathode materials of Li3V2(PO4)3/C were successfully synthesized by ball-milling assisted microwave method and the microwave irradiation time was also optimized. It is found that the Li3V2(PO4)3/C material obtained at a microwave power of 640 W for 18 min showed the best electrochemical performance with the initial reversible capacity of 101.3 mAh.g-1 and the remained 100.8 mAh.g-1 at 5C rate after 300 cycles. This excellent electrochemical capability may be resulted from good crystallinity, smaller and uniform particle size of the material, showing a great promise for battery applications.

Key words: Lithium-ion battery, Li3V2(PO4)3/C, microwave synthesis

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