Author:
Wu Pengfei,Shi Benyang,Tu Huibin,Guo Changqing,Liu Anhua,Yan Guan,Yu Zhaoju
Abstract
AbstractSevere volume expansion and inherently poor lithium ion transmission are two major problems of silicon anodes. To address these issues, we proposed a pomegranate-type Si/C composite anode with highly dispersed tiny silicon particles as the core assisted by small amount of SiC. Skillfully exploiting the high heat from magnesiothermic reduction, SiC can assist the good dispersion of silicon and provide good interface compatibility and chemical stability. The silicon anchored to the carbon shell provides multipoint contact mode, that together with the carbon shell frame, significantly promoting the transfer of dual charge. Besides, the pomegranate-type microcluster structure also improves the tap density of the electrode, reduces the direct contact area between active material and electrolyte, and enhances the electrochemical performance.
Publisher
Springer Science and Business Media LLC
Subject
Ceramics and Composites,Electronic, Optical and Magnetic Materials
Cited by
33 articles.
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