Energy Storage Science and Technology ›› 2021, Vol. 10 ›› Issue (4): 1253-1260.doi: 10.19799/j.cnki.2095-4239.2021.0073

• Energy Storage Materials and Devices • Previous Articles     Next Articles

Research progress of transition metal oxides /C composite nanofibers fabricated by electrospinning in anode materials for lithium-ion batteries

Rui YANG(), Lili WANG(), Yiming MI, Ye LIU, Jianbao WU, Xinxin ZHAO   

  1. School of Mathematics Physics and Statistics, Shanghai University of Engineering Science, Shanghai 201620, China
  • Received:2021-03-02 Revised:2021-03-30 Online:2021-07-05 Published:2021-06-25
  • Contact: Lili WANG E-mail:1175765961@qq.com;llwang@sues.edu.cn

Abstract:

Transition metal oxides (TMOs) are considered to be one of the best choices to replace graphite as a negative electrode material for Li ion batteries because of the extremely high theoretical specific capacity of TMOs. However, during charging and discharging, excessive volume expansion and poor electrical conductivity limit its further development. Combining TMO materials with carbon materials can meet the demand for Li storage capacity and avoid excessive volume expansion during charging and discharging. After an investigation of recent literature, research results are summarized regarding the preparation of TMO/C hybrid nanofibers using an electrospinning technology as anode materials for Li ion batteries. The preparation process of TMO/C hybrid nanofibers with porous, core-shell, hollow, and hybrid structures, and the influence of these special structures on the performance of Li ion batteries, are introduced. Comprehensive analysis shows that nanofiber membranes with larger specific surface areas and rich pore structures provide additional active sites for chemical reactions during the charge and discharge cycle and establish a good conductive path for the rapid diffusion and charge transfer of Li ions. This can considerably improve the electrochemical performance of Li ion batteries. Finally, the current limitations and challenges in this field are discussed, and future development directions of TMO-based Li-ion battery anode materials are suggested. Prospective research directions could include the simplification of the preparation process, reduction in the cost of preparation, increase in preparation efficiency, and improvement in mass production. It will be important to discover more suitable materials to combine with TMOs to develop Li ion batteries with a more reasonable structure and improved performance.

Key words: TMO, electrospinning, nanofibers, ithium-ion batteries

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