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.

引用

页码：A369 / A372

页数：4

共 15 条

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