Electrochemical characteristics of a-Si thin film anode for Li-ion rechargeable batteries

被引:191
作者
Lee, KL
Jung, JY
Lee, SW
Moon, HS
Park, JW
机构
[1] Hanyang Univ, Div Engn & Mat Sci, Seoul 133791, South Korea
[2] Res Ctr Energy Convers & Storage, Seoul 151742, South Korea
关键词
Li-ion rechargeable battery; anode; silicon; thin film; micro battery;
D O I
10.1016/j.jpowsour.2003.10.013
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
Deposition of an amorphous Si (a-Si) thin film anode was carried out by a radio-frequency (rf) magnetron sputtering. In order to avoid mechanical disintegration of the Si electrodes, the Si was deposited on two types of Cu foil: normal Cu foil and Cu foil with a rough surface. The surface of the Cu foil was roughened with sandpaper. The properties of Si film were observed by FESEM, Raman, XRD, AFM, CLSM and electrochemical performance was evaluated. It was believed that the rough foil helped the active Si material to maintain the electronic contact with the current collector during charging and discharging.(C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:270 / 274
页数:5
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