Preparation of Microporous Si-O-C Composite Material and Its Lithium Storage Capability

被引:29
作者
Fukui, Hiroshi [1 ,2 ]
Ohsuka, Hisashi [2 ]
Hino, Takakazu [2 ]
Kanamura, Kiyoshi [1 ]
机构
[1] Tokyo Metropolitan Univ, Grad Sch Engn, Dept Appl Chem, Tokyo 1920397, Japan
[2] Dow Corning Toray Co Ltd, Ichihara, Chiba 2990108, Japan
关键词
PITCH-POLYSILANE BLENDS; ANODE MATERIALS; ION BATTERIES; PRECURSORS;
D O I
10.1246/cl.2009.86
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A microporous Si-O-C composite material was prepared by pyrolysis of a blend of polysilane, (Ph2Si)(0.85)(PhSi)(0.15) (1) and polystyrene (1:1 in weight) at 1000 degrees C. This material electrochemically performed well, offering a capacity of more than 600 mA h g(-1) and a good cycle life. Our Li-7 NMR analysis confirmed the possibility of several electrochemical active sites for lithium storage in this new composite material.
引用
收藏
页码:86 / 87
页数:2
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