Ordered CoO/CMK-3 nanocomposites as the anode materials for lithium-ion batteries

被引：96

作者：

Zhang, Haijiao ^{[1
,2
]}

Tao, Haihua ^{[1
]}

Jiang, Yong ^{[1
]}

Jiao, Zheng ^{[1
,2
]}

Wu, Minghong ^{[1
]}

Zhao, Bing ^{[1
]}

机构：

[1] Shanghai Univ, Sch Environm & Chem Engn, Shanghai Appl Radiat Inst, Shanghai 200444, Peoples R China

[2] Shanghai Univ, Inst Nanochem & Nanobiol, Shanghai 200444, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2010年 / 195卷 / 09期

基金：

上海市自然科学基金;

关键词：

Cobalt monoxide; Mesoporous carbon; Anode materials; Lithium-ion batteries; MESOPOROUS CARBON CMK-3; SECONDARY BATTERIES; MICROPOROUS CARBON; DISORDERED CARBON; PERFORMANCE; STORAGE; OXIDE; MICROSTRUCTURE; SPHERES;

D O I：

10.1016/j.jpowsour.2009.11.003

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：

A novel ordered mesoporous carbon hybrid composite, CoO/CMK-3, is prepared by an infusing method using Co(NO3)(2)center dot 6H(2)O as the cobalt source. The products are characterized by X-ray diffraction, transmission electron microscopy and N-2 adsorption-desorption analysis techniques. It is observed that the CoO nanoparticles are loaded in the channels of mesoporous carbon. The mesopore structure of CMK-3 is destroyed gradually with increasing of the Coo content. The electrochemical properties of samples as the anode materials for lithium-ion batteries are studied by galvanostatic method. The results show that the CoO/CMK-3 composites have higher reversible capacities (more than 700 mAh g(-1)) and better cycle performance in comparison with the pure mesoporous carbon (CMK-3). Based on the above results, a mechanism is proposed to explain the reason of such a substantial improvement of electrochemical performance in the CoO/CMK-3 composites. (c) 2009 Elsevier B.V. All rights reserved.

引用

页码：2950 / 2955

页数：6

共 21 条

[1] A disordered carbon as a novel anode material in lithium-ion cells [J].