Silicon/carbon composites as anode materials for Li-ion batteries

被引：119
作者：
Liu, Y [1 ]
Hanai, K
Yang, J
Imanishi, N
Hirano, A
Takeda, Y
机构：
[1] Mie Univ, Fac Engn, Dept Chem, Tsu, Mie 5148507, Japan
[2] Shanghai Jiao Tong Univ, Dept Chem Engn, Shanghai 200240, Peoples R China
来源：
ELECTROCHEMICAL AND SOLID STATE LETTERS | 2004年 / 7卷 / 10期
关键词：
D O I：
10.1149/1.1795031
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A silicon/carbon composite has been synthesized by two poly(vinylchloride) (PVC) pyrolysis reactions, combined with an intervening high-energy mechanical milling (HEMM) step. As lithium storage host, the composite demonstrates high initial coulombic efficiency of 82% and a large capacity at ca. 900 mAh g(-1) over 40 cycles. Controlling Li-insertion level at 600 mAh g(-1) can greatly extend the cycles to over 100. Another composite prepared by ballmilling a mixture of graphite and silicon and followed by a PVC pyrolysis process also shows both good capacity and capacity retention. (C) 2004 The Electrochemical Society.
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页码：A369 / A372
页数：4
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