Chem. J. Chinese Universities ›› 2023, Vol. 44 ›› Issue (1): 20220453.doi: 10.7503/cjcu20220453

• Article • Previous Articles     Next Articles

Synthesis and Lithium-ion Battery Performance of Hollow Multishelled CoFe2O4

BI Ruyi1,2, ZHAO Jilu2, WANG Jiangyan2,3(), YU Ranbo1(), WANG Dan2,3()   

  1. 1.Department of Physical Chemistry,School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China
    2.State Key Laboratory of Biochemical Engineering,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China
    3.School of Chemical Engineering,University of Chinese Academy of Sciences,Beijing 100049,China
  • Received:2022-06-29 Online:2023-01-10 Published:2022-07-28
  • Contact: WANG Jiangyan, YU Ranbo, WANG Dan E-mail:jywang@ipe.ac.cn;ranboyu@ustb.edu.cn;danwang@ipe.ac.cn
  • Supported by:
    the National Natural Science Foundation of China(21820102002);the Cooperation Fund of the Institute of Clean Energy Innovation, Chinese Academy of Sciences(DNL202020);the National Key R&D Program of China(2021YFC2902500)

Abstract:

Binary transition metal oxides have attracted significant attention as high-performance lithium ion battery electrode materials, due to their excellent electrochemical activities. However, the poor cycling stability of the material limits its practical application. In this study, we synthesized CoFe2O4 hollow multishelled structure(HoMS) material by sequential templating approach, and characterized its morphology and structure. In addition, the relationship between shell structure and battery performance is well studied. It is demonstrated that double-shelled core CoFe2O4 HoMS has the highest discharge capacity(1354.4 mA·h/g), excellent rate performance and cycle stability. The outstanding electrochemical performance is mainly attributed to its unique structural advantages and optimal cavity volume occupancy, which enables it to maintain good structure stability and beneficial electrochemical properties during the repeated cycling.

Key words: Hollow multishelled structure, CoFe2O4, Lithium-ion battery, Specific capacity, Cycling stability

CLC Number: 

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