中国物理B ›› 2022, Vol. 31 ›› Issue (3): 38203-038203.doi: 10.1088/1674-1056/ac21be

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Lithium ion batteries cathode material: V2O5

Baohe Yuan(袁保合), Xiang Yuan(袁祥), Binger Zhang(张冰儿), Zheng An(安政), Shijun Luo(罗世钧), and Lulu Chen(陈露露)   

  1. North China University of Water Resources and Electric Power, Zhengzhou 450011, China
  • 收稿日期:2021-07-10 修回日期:2021-08-19 接受日期:2021-08-27 出版日期:2022-02-22 发布日期:2022-02-17
  • 通讯作者: Baohe Yuan, Lulu Chen E-mail:yuanbaohe@ncwu.edu.cn;chenlulu@ncwu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 51702097 and U1804125) and the Key Scientific and Technological Research Projects of Henan Province, China (Grant No. 202102210222).

Lithium ion batteries cathode material: V2O5

Baohe Yuan(袁保合), Xiang Yuan(袁祥), Binger Zhang(张冰儿), Zheng An(安政), Shijun Luo(罗世钧), and Lulu Chen(陈露露)   

  1. North China University of Water Resources and Electric Power, Zhengzhou 450011, China
  • Received:2021-07-10 Revised:2021-08-19 Accepted:2021-08-27 Online:2022-02-22 Published:2022-02-17
  • Contact: Baohe Yuan, Lulu Chen E-mail:yuanbaohe@ncwu.edu.cn;chenlulu@ncwu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 51702097 and U1804125) and the Key Scientific and Technological Research Projects of Henan Province, China (Grant No. 202102210222).

摘要: Among all the known electrode materials, vanadium pentoxide (V2O5) has high reversible capacity. It is a very valuable material for research of the complexity, rich structure and morphology. However, it also has some disadvantages, such as poor cycle stability, low discharge voltage, low conductivity and Li+ diffusion coefficient. In this regard, researchers have carried out a lot of research, such as using various methods to improve the nanostructures, introducing heterostructures, introducing point defects or cation doping in the crystal structure, etc. The electrochemical performance of V2O5 has been significantly improved in reversible capacity, high-rate capacity and long-term cycle stability. In this paper, V2O5 based nanostructure with different chemical composition are briefly introduced, and it covers V2O5 nanomaterials with different morphology, including 1D nanorods, nanobelts, nanotubes, 2D leaf like nanosheets and other nanosheets, and 3D hollow structures, porous nanostructures, porous eggshell microsphere structures. The composite nanomaterials of V2O5 and different carbonaceous supports are also introduced. Finally, the V2O5 composite materials doped with cations are discussed. The electrochemical performance of V2O5 based electrode can be improved effectively by obtaining appropriate nanostructure and optimized chemical composition.

关键词: lithium ion battery, V2O5 nanostructures, electrochemical properties, nanotubes and nanowires

Abstract: Among all the known electrode materials, vanadium pentoxide (V2O5) has high reversible capacity. It is a very valuable material for research of the complexity, rich structure and morphology. However, it also has some disadvantages, such as poor cycle stability, low discharge voltage, low conductivity and Li+ diffusion coefficient. In this regard, researchers have carried out a lot of research, such as using various methods to improve the nanostructures, introducing heterostructures, introducing point defects or cation doping in the crystal structure, etc. The electrochemical performance of V2O5 has been significantly improved in reversible capacity, high-rate capacity and long-term cycle stability. In this paper, V2O5 based nanostructure with different chemical composition are briefly introduced, and it covers V2O5 nanomaterials with different morphology, including 1D nanorods, nanobelts, nanotubes, 2D leaf like nanosheets and other nanosheets, and 3D hollow structures, porous nanostructures, porous eggshell microsphere structures. The composite nanomaterials of V2O5 and different carbonaceous supports are also introduced. Finally, the V2O5 composite materials doped with cations are discussed. The electrochemical performance of V2O5 based electrode can be improved effectively by obtaining appropriate nanostructure and optimized chemical composition.

Key words: lithium ion battery, V2O5 nanostructures, electrochemical properties, nanotubes and nanowires

中图分类号:  (Lithium-ion batteries)

  • 82.47.Aa
79.60.Jv (Interfaces; heterostructures; nanostructures) 65.40.gk (Electrochemical properties)