Development and characterization of a novel silicon-based glassy composite as an anode material for Li-ion batteries

被引：15
|
作者：
Wang, Xiuyan [1 ]
Wen, Zhaoyin [1 ]
Liu, Yu [1 ]
Huang, Ying [1 ]
Wen, Ting-Lian [1 ]
机构：
[1] Chinese Acad Sci, CAS Key Lab Mat Energy Convers, Shanghai Inst Ceram, Shanghai 200050, Peoples R China
来源：
SOLID STATE IONICS | 2011年 / 192卷 / 01期
关键词：
Silicon-based composite; Anode; Glassy matrices; HEMM; Li-ion batteries; RECHARGEABLE LITHIUM BATTERIES; ELECTROCHEMICAL CHARACTERIZATION; NEGATIVE ELECTRODES; NANOSIZED SILICON; IN-SITU; TIN; OXIDES;
D O I：
10.1016/j.ssi.2010.03.008
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A novel silicon-based glassy composite anode material with high initial coulombic efficiency and long cycling performance for lithium-ion batteries was synthesized by a wet mechanochemical reduction method. The in Situ formed Si particles with size of 5-10 nm were uniformly distributed in the glassy matrices formed by B(2)O(3) and P(2)O(5). The as-prepared composite electrode revealed an initial charge and discharge capacity of 432.7 and 514.4 mAh g(-1) respectively, with an initial coulombic efficiency of 84%. After 100 cycles, the reversible capacity retention rate was still up to 97%, meaning a favorable cycling stability. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：330 / 334
页数：5
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