Amorphous silicon anode for lithium-ion rechargeable batteries

被引:223
|
作者
Jung, HJ [1 ]
Park, M [1 ]
Yoon, YG [1 ]
Kim, GB [1 ]
Joo, SK [1 ]
机构
[1] Seoul Natl Univ, Sch Mat Sci & Engn, Seoul 151744, South Korea
关键词
lithium-ion batteries; anode; silicon; thin film; cycling performance;
D O I
10.1016/S0378-7753(02)00707-3
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
Amorphous silicon is investigated as a negative electrode (anode) material for lithium-ion batteries. A thin (500 Angstrom) film of amorphous silicon is cycled versus a lithium electrode. A maximum discharge capacity of 4 Ah g(-1) is observed by cycling over a voltage window of 0-3 V, but capacity fading is rapid after 20 cycles. This capacity fading can be overcome, to more than 400 cycles, by changing the lower voltage limit to 0.2 V In this situation, the discharge capacity is about 400 mAh g(-1). (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:346 / 351
页数:6
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