摘要
A novel porous Si/S-doped carbon composite was prepared by a magnesiothermic reaction of mesoporous SiO 2 , subsequently coating with a sulfur-containing polymer-poly(3,4-ethylene dioxythiophene), and a post-carbonization process. The as-prepared Si composite was homogeneously coated with disordered S-doped carbon with 2.6 wt.% S in the composite and retained a high surface area of 58.8 m 2 g −1 . The Si/S-doped carbon composite exhibited superior electrochemical performance and long cycle life as an anode material in lithium ion cells, showing a stable reversible capacity of 450 mAh g −1 even at a high current rate of 6,000 mA g −1 .
危险品化学品经营许可证（带存储）