Facile synthesis of Si/TiO2 (anatase) core-shell nanostructured anodes for rechargeable Li-ion batteries

被引：29
|
作者：
Hwa, Yoon
Kim, Won-Sik [1 ]
Yu, Byeong-Chul [1 ]
Kim, Jae-Hun [2 ]
Hong, Seong-Hyeon [1 ]
Sohn, Hun-Joon [1 ]
机构：
[1] Seoul Natl Univ, Dept Mat Sci & Engn, Seoul 151744, South Korea
[2] Kookmin Univ, Sch Adv Mat Engn, Seoul 136702, South Korea
来源：
JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2014年 / 712卷
基金：
新加坡国家研究基金会;
关键词：
Lithium ion battery; Anode; Anatase; Silicon; Core-shell structure; ELECTROCHEMICAL PROPERTIES; LITHIUM BATTERIES; PARTICLE-SIZE; HIGH-CAPACITY; TIO2; ANATASE; ELECTRODE; CAPABILITY; NANOWIRES; DIFFUSION; INSERTION;
D O I：
10.1016/j.jelechem.2013.11.023
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A nano-Si/TiO2 core-shell nanostructured electrode was synthesized using sol-gel method. The TiO2 shells were made with 10-nm thickness, and were structurally stable upon the intercalation/deintercalation of Li+, improve the cyclability of the Si electrode during cycling. The nano-Si/TiO2 core-shell nanostructured electrode showed a reversible capacity of ca. 1250 mA h g(-1) over 50 cycles. The reaction mechanism between the nano-Si/TiO2 core-shell nanostructured electrode and Li was investigated by ex situ analyses. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：202 / 206
页数：5
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