Novel composites based on ultrafine silicon, carbonaceous matrix, and the introduced co-milling components as anode host materials for Li-ion batteries

被引：24

作者：

Liu, Y ^{[1
]}

Hanai, K ^{[1
]}

Matsumura, T ^{[1
]}

Imanishi, N ^{[1
]}

Hirano, A ^{[1
]}

Takeda, Y ^{[1
]}

机构：

[1] Mie Univ, Fac Engn, Dept Chem, Tsu, Mie 5148507, Japan

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2004年 / 7卷 / 12期

关键词：

D O I：

10.1149/1.1818021

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

We report studies of the electrochemical behavior of the Si-M-C (M could be TiN, TiB2, graphite) composites, which were prepared from ballmilling silicon with the relatively inactive components and further followed a pyrolyzed poly(vinyl chloride) process. As lithium hosts, these composites showed large capacities of ca. 900 mAh g(-1) and good capacity retention. Research reveals that both the high-energy mechanical milling step and pyrolysis reaction play a key role in alleviating the morphology stress arising from silicon during cycling. A possible capacity decay mechanism with respect to such anode systems has also been investigated and discussed. (C) 2004 The Electrochemical Society.

引用

页码：A492 / A495

页数：4

共 20 条

[1] Reaction of Li with alloy thin films studied by in situ AFM [J].