Si-Al thin film anode material with superior cycle performance and rate capability for lithium ion batteries

被引：72

作者：

Chen, L. B. ^{[1
]}

Xie, J. Y. ^{[2
]}

Yu, H. C. ^{[1
]}

Wang, T. H. ^{[1
]}

机构：

[1] Hunan Univ, Micronano Technol Res Ctr, Changsha 410082, Hunan, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, Energy Sci & Technol Lab, Shanghai 200050, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2008年 / 53卷 / 28期

关键词：

Si-Al thin film; high rate capability; cycle performance; lithium ion battery; anode material;

D O I：

10.1016/j.electacta.2008.06.025

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

To improve the electrochemical performance of Si thin film, we have investigated the effect of the addition of At in the film. The Si-Al thin film were prepared by co-deposition from Si target embedded with At rods on Cu foil. The atomic ratio of Al in the film is 18.69% estimated by energy-dispersive spectroscopy. The XRD and TEM analysis revealed that the Si-Al thin film was a complete amorphous structure. The electrochemical performance of the Si-Al thin film as anode material for lithium ion battery was investigated by the cyclic voltammetry and charge/discharge tests. The Si-Al thin film delivered a high reversible capacity of 2257.8 mAh g(-1) and ail initial Coulombic efficiency of 85.9% at 0.05C rates. Compared with pure Si thin film with the same thickness, Si-Al thin film showed Superior rate capability and cycle performance. And the Li+ diffusion coefficient of Si-Al thin film is much higher than that of Si thin film. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：8149 / 8153

页数：5

共 26 条

[1] Design criteria for nanostructured Li-ion batteries [J].

Aifantis, K. E. ;

Hackney, S. A. ;

Dempsey, J. P. .

JOURNAL OF POWER SOURCES, 2007, 165 (02) :874-879

[2] Colossal reversible volume changes in lithium alloys [J].

Beaulieu, LY ;

Eberman, KW ;

Turner, RL ;

Krause, LJ ;

Dahn, JR .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2001, 4 (09) :A137-A140

[3] Spherical nanostructured Si/C composite prepared by spray drying technique for lithium ion batteries anode [J].

Chen, Libao ;

Xie, Xiaohua ;

Wang, Baofeng ;

Wang, Ke ;

Xie, Jingying .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2006, 131 (1-3) :186-190

[4] Mixed silicon-graphite composites as anode material for lithium ion batteries influence of preparation conditions on the properties of the material [J].

Dimov, N ;

Kugino, S ;

Yoshio, A .

JOURNAL OF POWER SOURCES, 2004, 136 (01) :108-114

[5] Electrochemical impedance study of Li-ion insertion into mesocarbon microbead single particle electrode Part II. Disordered carbon [J].

Dokko, K ;

Fujita, Y ;

Mohamedi, M ;

Umeda, M ;

Uchida, I ;

Selman, JR .

ELECTROCHIMICA ACTA, 2001, 47 (06) :933-938

[6]

Eftekhari A, 2008, NANOSTRUCTURED MAT E

[7] Aluminum negative electrode in lithium ion batteries [J].

Hamon, Y ;

Brousse, T ;

Jousse, F ;

Topart, P ;

Buvat, P ;

Schleich, DM .

JOURNAL OF POWER SOURCES, 2001, 97-8 :185-187

[8] Lithium Insertion in SiAg Powders Produced by Mechanical Alloying [J].

Hwang, Sung-Min ;

Lee, Heon-Young ;

Jang, Serk-Won ;

Lee, Sung-Man ;

Lee, Seung-Joo ;

Baik, Hong-Koo ;

Lee, Jai-Young .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2001, 4 (07) :A97-A100

[9] Electrochemical characteristics of a-Si thin film anode for Li-ion rechargeable batteries [J].

Lee, KL ;

Jung, JY ;

Lee, SW ;

Moon, HS ;

Park, JW .

JOURNAL OF POWER SOURCES, 2004, 129 (02) :270-274

[10] Silver alloying effect on the electrochemical behavior of Si-Zr thin film anodes [J].

Lee, KS ;

Kim, YL ;

Lee, SM .

JOURNAL OF POWER SOURCES, 2005, 146 (1-2) :464-468

← 1 2 3 →