NANOSIZED SILICON/GRAPHITE COMPOSITE AS ANODE MATERIAL FOR Li-ION BATTERIES SYNTHESIZED BY A CHEMICAL REDUCTION METHOD
A nano-sized silicon/graphite (Si/G) composite is synthesized by the chemical reduction between silicon tetrachloride (SiCl4) and potassium-graphite (C8K) in dimethoxyethane (DME). X-ray diffraction (XRD) and transmission electron microscope (TEM) with X-ray energy-dispersive spectrometry are applied to observe the morphology and particle size of the synthesized composite materials. It is demonstrates that the in situ formed Si particles with size of about one hundred nanometers are uniformly distributed in the elastic single crystal graphite matrix. The as-prepared silicon/graphite composite anode reveals an initial reversible capacity of 473 mAh g-1 and after 200 cycles, still maintains at 536.2 mAh g-1.
XIUYAN WANG ZHAOYIN WEN YU LIU JINGCHAO ZHANG XIANGWEI WU
CAS Key Laboratory of Materials for Energy Conversion,Shanghai Institute of Ceramics, Chinese Academ CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Acade
国际会议
The 12th Asian Conference on Solid State Ionics(第十二届亚洲固态离子学会议暨第十五届中国固态离子学会议)
武汉
英文
696-703
2010-05-02（万方平台首次上网日期，不代表论文的发表时间）