期刊
MATERIALS CHEMISTRY AND PHYSICS
卷 121, 期 3, 页码 519-522出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2010.02.017
关键词
Nanostructures; Etching; Electrochemical techniques; Electrochemical properties
资金
- Chinese National Nature Science Foundation
Silicon nanowire array films were prepared by metal catalytic etching method and applied as anode materials for rechargeable lithium-ion batteries. The films completely consisted of silicon nanowires that were single crystals. Aluminum films were plated on the backs of the silicon nanowire films and then annealed in an argon atmosphere to improve electronic contact and conduction. In addition to easy preparation and low cost, the silicon nanowire film electrodes exhibited large lithium storage capacity and good cycling performance. The first discharge and charge capacities were 3653 mAh g(-1) and 2409 mAh g(-1), respectively, at a rate of 150 mA g(-1) between 2 and 0.02 V. A stable reversible capacity of about 1000 mAh g(-1) was maintained after 30 cycles. The good properties were ascribed to the silicon nanowires which better accommodated the large volume change during lithium-ion intercalation and de-intercalation. (C) 2010 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据