期刊
JOURNAL OF POWER SOURCES
卷 244, 期 -, 页码 521-526出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2013.02.049
关键词
Silicon; Anode; Binder; Lithium ion battery
资金
- National Research Foundation of Korea
- Korean Government (MEST) [NRF-2010-C1AAA001-2010-0028958]
- National Research Council of Science & Technology (NST), Republic of Korea [2E23964] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2012M1A2A2671792] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Si nanostructures with high surface area are prepared by Ag-assisted chemical etching, and then employed as an anode material for lithium ion batteries. The use of the surface-modified Si, which has four times higher surface area than its pristine counterpart, leads to the enhancement of electrochemical performance characteristics such as discharge capacity and coulombic efficiency. In order to optimize the electrode constituents, two different binders, poly-vinylidine difluoride (PVdF) and polyimide (PI), are evaluated on the basis of electrochemical and physical tests. In-situ dilatometer and nano-indentation studies during repeated charging and discharging cycles for the different binders reveal more stability and recuperative capability against physical stress with the PI binder than with the PVdF. The optimized active structure combined with the film-like binder plays an important role in enhancing the electrochemical performance. (C) 2013 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