Spherical nanostructured Si/C composite prepared by spray drying technique for lithium ion batteries anode

被引:49
作者
Chen, Libao
Xie, Xiaohua
Wang, Baofeng
Wang, Ke
Xie, Jingying [1 ]
机构
[1] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, Energy Sci & Technol Lab, Shanghai 200050, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
[3] Shanghai Jiao Tong Univ, Dept Chem Engn, Shanghai 200240, Peoples R China
来源
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 2006年 / 131卷 / 1-3期
关键词
Si/C composite; spherical; nanostructure; spray drying technique; lithium ion battery; anode;
D O I
10.1016/j.mseb.2006.04.029
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Spherical nanostructured Si/C composite was prepared by spray drying technique, followed by heat treatment, in which nanosized silicon and fine graphite particles were homogeneously embedded in carbon matrix pyrolyzed by phenol formaldehyde resin. Cyclic voltammetry tests showed two pairs of redox peaks corresponding to lithiation and delithiation of Si/C composite. The Si/C composite exhibited a reversible capacity of 635 mAh g(-1) and good cycle performance used in. lithium ion batteries. To improve cycle performance of this Si/C composite further, the carbon-coated Si/C composite was synthesized by the second spray drying and heat treatment processing. The cycle performance of carbon-coated Si/C composite was improved significantly, which was attributed to the formation of stable SEI passivation layers on the outer surface of carbon shell which protected the bared silicon from exposing to electrolyte directly. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:186 / 190
页数:5
相关论文
共 23 条
  • [11] The crystal structural evolution of nano-Si anode caused by lithium insertion and extraction at room temperature
    Li, H
    Huang, XJ
    Chen, LQ
    Zhou, GW
    Zhang, Z
    Yu, DP
    Mo, YJ
    Pei, N
    [J]. SOLID STATE IONICS, 2000, 135 (1-4) : 181 - 191
  • [12] Electrochemically-driven solid-state amorphization in lithium-silicon alloys and implications for lithium storage
    Limthongkul, P
    Jang, YI
    Dudney, NJ
    Chiang, YM
    [J]. ACTA MATERIALIA, 2003, 51 (04) : 1103 - 1113
  • [13] Morphology-stable silicon-based composite for Li-intercalation
    Liu, Y
    Hanai, K
    Yang, J
    Imanishi, N
    Hirano, A
    Takeda, Y
    [J]. SOLID STATE IONICS, 2004, 168 (1-2) : 61 - 68
  • [14] Nanocomposites of silicon/titanium carbide synthesized using high-energy mechanical milling for use as anodes in lithium-ion batteries
    Patel, P
    Kim, IS
    Kumta, PN
    [J]. MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2005, 116 (03): : 347 - 352
  • [15] Failure modes of silicon powder negative electrode in lithium secondary batteries
    Ryu, JH
    Kim, JW
    Sung, YE
    Oh, SM
    [J]. ELECTROCHEMICAL AND SOLID STATE LETTERS, 2004, 7 (10) : A306 - A309
  • [16] WANG BF, 2004, J CERAM SOC JPN, V112, pS649
  • [17] Characterization of nanocrystalline Si-MCMB composite anode materials
    Wang, GX
    Yao, J
    Liu, HK
    [J]. ELECTROCHEMICAL AND SOLID STATE LETTERS, 2004, 7 (08) : A250 - A253
  • [18] Nanostructured Si-C composite anodes for lithium-ion batteries
    Wang, GX
    Ahn, JH
    Yao, J
    Bewlay, S
    Liu, HK
    [J]. ELECTROCHEMISTRY COMMUNICATIONS, 2004, 6 (07) : 689 - 692
  • [19] High capacity silicon/carbon composite anode materials for lithium ion batteries
    Wen, ZS
    Yang, J
    Wang, BF
    Wang, K
    Liu, Y
    [J]. ELECTROCHEMISTRY COMMUNICATIONS, 2003, 5 (02) : 165 - 168
  • [20] Ag-enhanced SEI formation on Si particles for lithium batteries
    Wu, XD
    Wang, ZX
    Chen, LQ
    Huang, XJ
    [J]. ELECTROCHEMISTRY COMMUNICATIONS, 2003, 5 (11) : 935 - 939