High capacity Si/DC/MWCNTs nanocomposite anode materials for lithium ion batteries

被引：40

作者：

Zhou, Zhibin ^{[1
]}

Xu, Yunhua ^{[1
]}

Liu, Wengang ^{[1
]}

Niu, Libin ^{[1
]}

机构：

[1] Xian Univ Architecture & Technol, Sch Mat Sci & Engn, Xian 710055, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 493卷 / 1-2期

关键词：

Silicon; Multi-walled carbon nanotubes; Disordered carbon; Anode material; SILICON/CARBON COMPOSITE ANODE; CARBON NANOTUBES; SECONDARY BATTERIES; SHELL COMPOSITE; SI; INTERCALATION; ELECTRODES; INSERTION; CORE;

D O I：

10.1016/j.jallcom.2009.12.171

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Nanocomposites comprising nanocrystal silicon (Si), disordered carbon (DC), and multi-walled carbon nanotubes (MWCNTs) - denoted as Si/DC/MWCNTs - have been prepared by pyrolyzing the phenolformaldehyde resin (PFR) mixed with Si and MWCNTs. This nanocomposite anode material showed a discharge capacity of 1216 mAh/g in the first cycle, and a charge capacity of 711 mAh/g after 20 charge-discharge, much higher than that of Si/DC composite. It can be observed that Si particles wrapped in MWCNTs were homogeneously embedded into the matrix of the DC. The improved electrochemical performance is hypothesized to be mainly attributed to the morphology stability of the composite due to the excellent resiliency and distinct electric conductivity of the MWCNTs. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：636 / 639

页数：4

共 24 条

[1] Single-electrode Peltier heats of Li-Si alloy electrodes in LiCl-KCl eutectic melt
Amezawa, K
Yamamoto, N
Tomii, Y
Ito, Y
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1998, 145 (06) : 1986 - 1993
[2] BESENHARD JO, 1997, J POWER SOURCES, V68, P296
[3] 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
[4] Electrochemical storage of lithium multiwalled carbon nanotubes
Frackowiak, E
Gautier, S
Gaucher, H
Bonnamy, S
Beguin, F
[J]. CARBON, 1999, 37 (01) : 61 - 69
[5] Silicon/disordered carbon nanocomposites for lithium-ion battery anodes
Guo, ZP
Milin, E
Wang, JZ
Chen, J
Liu, HK
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2005, 152 (11) : A2211 - A2216
[6] Si-carbon core-shell composite anode in lithium secondary batteries
Jung, Yoon Seok
Lee, Kyu T.
Oh, Seung M.
[J]. ELECTROCHIMICA ACTA, 2007, 52 (24) : 7061 - 7067
[7] Lithium-ion batteries based on carbon-silicon-graphite composite anodes
Khomenko, Volodymyr G.
Barsukov, Viacheslav Z.
Doninger, Joseph E.
Barsukov, Igor V.
[J]. JOURNAL OF POWER SOURCES, 2007, 165 (02) : 598 - 608
[8] Carbon nanotubes (CNTs) as a buffer layer in silicon/CNTs composite electrodes for lithium secondary batteries
Kim, Taeahn
Mo, Y. H.
Nahm, K. S.
Oh, Seung M.
[J]. JOURNAL OF POWER SOURCES, 2006, 162 (02) : 1275 - 1281
[9] 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
[10] Electrochemical lithium intercalation into multiwall carbon nanotubes: a micro-Raman study
Maurin, G
Bousquet, C
Henn, F
Bernier, P
Almairac, R
Simon, B
[J]. SOLID STATE IONICS, 2000, 136 : 1295 - 1299

← 1 2 3 →