Preparation and electrochemical property of Si/CNT/C composite

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  • 1.Faculty of Metallurgy and Energy Engineering,Kunming University of Science and Technology,Kunming 650093;
    2.National and Local Joint Engineering Laboratory for Lithium-ion Batteries and Materials Preparation Technology,Kunming University of Science and Technology, Kunming 650093;
    3.Key Laboratory of Advanced Battery Materials of Yunnan Province, Kunming University of Science and Technology,Kunming 650093;
    4.Hefei Guoxuan Gaoke Power Energy Co.,Ltd.,Hefei 230011

Online published: 2020-10-20

Abstract

Silicon anode is considered as one of the most potential candidate materials for lithium ion batteries due to its high theoretical specific capacity and low lithium potential.However,the commercial application of silicon negative electrode is seriously hindered because of its poor conductivity and remarkable volume effect.Multi-wall carbon nanotubes (MWCNTs) with high electrical conductivity and mechanical strength were used to construct Si/CNT/C composites with 3D conductive network by a simple and easy-to-operate ball milling method.Base on a series of analyses,it indicated that the ball-milled nano-silicon in Si/CNT/C was evenly distributed,had a stable conductive network,and exhibited excellent electrochemical performance.Therefore,the Si/CNT/C prepared by this method had potential commercial applications.

Cite this article

Meng Qi, Zhang Yingjie, Dong Peng, Zhang Yiyong, Li Kun . Preparation and electrochemical property of Si/CNT/C composite[J]. New Chemical Materials, 2020 , 48(10) : 101 -105 . DOI: 10.19817/j.cnki.issn 1006-3536.2020.10.022

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