Energy Storage Science and Technology ›› 2020, Vol. 9 ›› Issue (6): 1614-1628.doi: 10.19799/j.cnki.2095-4239.2020.0163

• Energy Storage Materials and Devices • Previous Articles     Next Articles

Research progress of specific capacity improvements of silicon-based anodes in lithium-ion batteries

Chenlu YU(), Xiaohua TIAN, Zhejuan ZHANG(), Zhuo SUN   

  1. School of Physics and Electronic Science, East China Normal University, Shanghai 200214, China
  • Received:2020-04-30 Revised:2020-05-25 Online:2020-11-05 Published:2020-10-28
  • Contact: Zhejuan ZHANG E-mail:614724850@qq.com;zjzhang@phy.ecnu.edu.cn

Abstract:

Optimizing the initial coulombic efficiency and cycling stability of anode materials is important to improve the specific capacity of lithium-ion batteries. Acknowledgedly, silicon-carbon composite material has been regarded as the most promising candidate for the next generation of lithium- ion batteries. In this paper, to the point of higher specific capacity, the structure design of secondary particles of silicon-based carbon anode material is detailed. Meanwhile, the up-to-date achievements and bottlenecks in secondary particles design, pre-lithiation strategies and binder explorations of silicon-based anodes are systematically reviewed, given their importance in electrochemical performance promotion and specific capacity upliftment. Based on many basic scientific issues and critical technologies for specific capacity of silicon-based anodes, the suitable design of structure, process and selection of binder are recommended to the achieve in higher power and better stability of anodes on lithium-ion batteries.

Key words: lithium-ion batteries, silicon-based anodes, initial coulombic efficiency, structure of secondary particles, pre-lithiation, binder

CLC Number: