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金属学报  2007, Vol. 43 Issue (5): 515-520     
  论文 本期目录 | 过刊浏览 |
电沉积制备的两种形貌Sn薄膜锂离子嵌入电极性能的比较
李昌明;黄启明;张仁元;李伟善;赵灵智;胡社军
A comparative study on the performances of thin film and granular tin as Li ion insertion electrodes prepared by electrodeposition
Chang-Ming LI;;;;
引用本文:

李昌明; 黄启明; 张仁元; 李伟善; 赵灵智; 胡社军 . 电沉积制备的两种形貌Sn薄膜锂离子嵌入电极性能的比较[J]. 金属学报, 2007, 43(5): 515-520 .
, , , , , . A comparative study on the performances of thin film and granular tin as Li ion insertion electrodes prepared by electrodeposition[J]. Acta Metall Sin, 2007, 43(5): 515-520 .

全文: PDF(441 KB)  
摘要: 用电沉积方法直接在铜集流体上分别制备出锂离子电池负极材料锡薄膜电极和锡颗粒电极。用X射线衍射、扫描电镜、循环伏安及充放电实验研究比较了二电极的性能。结果表明,在氟硼酸盐溶液中使用以醛类为主的复合添加剂,在静止条件下制得锡薄膜电极,搅拌条件下制得锡颗粒电极;锡薄膜电极比锡颗粒电极具有较优的初始嵌锂容量和循环稳定性:薄膜电极首次放电比容量达到了787mAh/g,40次循环时放电比容量仍保持630 mAh/g;而颗粒状电极首次放电比容量只有576 mAh/g,至20次循环时,放电比容量降到了150mAh/g。
关键词 电沉积锂离子电池负极材料    
Abstract:Thin film and granular tin electrodes as negative materials for lithium-ion batteries were prepared by electrodeposition onto copper foil collector. Their performances were studied with X-ray diffraction(XRD), scanning electron microscopy (SEM), cyclic voltammetry and charging-discharge experiments. The granular tin electrode and the film tin electrode can be prepared in fluoborate solution containing additives under stirred and unstirred condition, respectively. The thin film tin electrode shows its better discharge capacity and cyclic stability than the granular tin electrode: the discharge capacity of the film tin electrode is 787mAh/g for the first cycle and keeps 630 mAh/g after 40 cycles; but that of the granular tin electrode is only 576 mAh/g for the first cycle and keeps only 150mAh/g after 20 cycles.
Key wordsElectrodeposition    Tin    Lithium ion battery    Anode materials
收稿日期: 2006-09-01     
ZTFLH:  TM911  
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