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

被引:69
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
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
收藏
页码:8149 / 8153
页数:5
相关论文
共 26 条
  • [1] Design criteria for nanostructured Li-ion batteries
    Aifantis, K. E.
    Hackney, S. A.
    Dempsey, J. P.
    [J]. JOURNAL OF POWER SOURCES, 2007, 165 (02) : 874 - 879
  • [2] Colossal reversible volume changes in lithium alloys
    Beaulieu, LY
    Eberman, KW
    Turner, RL
    Krause, LJ
    Dahn, JR
    [J]. 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
    Chen, Libao
    Xie, Xiaohua
    Wang, Baofeng
    Wang, Ke
    Xie, Jingying
    [J]. 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
    Dimov, N
    Kugino, S
    Yoshio, A
    [J]. 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
    Dokko, K
    Fujita, Y
    Mohamedi, M
    Umeda, M
    Uchida, I
    Selman, JR
    [J]. ELECTROCHIMICA ACTA, 2001, 47 (06) : 933 - 938
  • [6] Eftekhari A, 2008, NANOSTRUCTURED MAT E
  • [7] Aluminum negative electrode in lithium ion batteries
    Hamon, Y
    Brousse, T
    Jousse, F
    Topart, P
    Buvat, P
    Schleich, DM
    [J]. JOURNAL OF POWER SOURCES, 2001, 97-8 : 185 - 187
  • [8] Lithium Insertion in SiAg Powders Produced by Mechanical Alloying
    Hwang, Sung-Min
    Lee, Heon-Young
    Jang, Serk-Won
    Lee, Sung-Man
    Lee, Seung-Joo
    Baik, Hong-Koo
    Lee, Jai-Young
    [J]. ELECTROCHEMICAL AND SOLID STATE LETTERS, 2001, 4 (07) : A97 - A100
  • [9] Electrochemical characteristics of a-Si thin film anode for Li-ion rechargeable batteries
    Lee, KL
    Jung, JY
    Lee, SW
    Moon, HS
    Park, JW
    [J]. JOURNAL OF POWER SOURCES, 2004, 129 (02) : 270 - 274
  • [10] Silver alloying effect on the electrochemical behavior of Si-Zr thin film anodes
    Lee, KS
    Kim, YL
    Lee, SM
    [J]. JOURNAL OF POWER SOURCES, 2005, 146 (1-2) : 464 - 468