Characterization of Nanocrystalline Si-MCMB Composite Anode Materials

Authors

G. X. Wang, University of WollongongFollow
J. Yao, University of WollongongFollow
Hua-Kun Liu, University of WollongongFollow

RIS ID

11331

Publication Details

This article was originally published as Wang, GX, Yao, J and Liu, HK, Characterization of Nanocrystalline Si-MCMB Composite Anode Materials, Electrochemical and Solid-State Letters, 7(8), 2004, A250-A253. Copyright The Electrochemical Society. Original journal available here.

Abstract

Nanocrystalline Si-mesocarbon microbeads ~MCMB! composite anode materials were prepared by ballmilling. Scanning electron microscopic observation showed that the spherical shape of MCMB particles can be retained via moderate ballmilling. Ballmilling conditions have an impact on the capacity and cyclability of nanocrystalline Si-MCMB composites. The optimized Si-MCMB composite anode demonstrated a reversible capacity of 1066 mAh/g with good cyclability. A reaction model has been proposed to explain the reaction mechanisms of lithium insertion and extraction in the Si-MCMB electrode.