An Sn-Fe/carbon nanocomposite as an alternative anode material for rechargeable lithium batteries

被引：55

作者：

Yoon, Sukeun ^{[1
]}

Lee, Jae-Myung ^{[1
]}

Kim, Hansu ^{[2
]}

Im, Dongmin ^{[2
]}

Doo, Seok-Gwang ^{[2
]}

Sohn, Hun-Joon ^{[1
]}

机构：

[1] Seoul Natl Univ, Dept Mat Sci & Engn, Res Ctr Energy Convers & Storage, Seoul 151742, South Korea

[2] Samsung Adv Inst Technol, Mat Lab, Yongin 449712, Gyeounggi Do, South Korea

来源：

ELECTROCHIMICA ACTA | 2009年 / 54卷 / 10期

关键词：

Lithium-ion batteries; Anode; Sn composite; EXAFS; ALLOYED SN-FE(-C) POWDERS; LI-ION BATTERIES; ELECTRODES; CAPACITY;

D O I：

10.1016/j.electacta.2008.11.060

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Sn-Fe/carbon nanocomposites were synthesized by the mechanochemical treatment of Sn with various amounts of an Fe/C composite through the pyrolysis of Fe(III) acetylacetonate. The composites were then evaluated as alternative anode materials for rechargeable lithium batteries. Based on the obtained ex situ X-ray diffraction (XRD) data, X-ray absorption spectroscopy (XAS) results, and differential capacity plots (DCPs), a reaction mechanism was suggested. It was found that increasing the amounts of the SnFe phase and pyrolyzed carbon in the composite improved its electrochemical characteristics in terms of its capacity retention. (C) 2008 Elsevier Ltd. All rights reserved.

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页码：2699 / 2705

页数：7

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