Nano-sized lithium manganese oxide dispersed on carbon nanotubes for energy storage applications

被引：44

作者：

Ma, Sang-Bok ^{[2
]}

Nam, Kyung-Wan ^{[3
]}

Yoon, Won-Sub ^{[1
]}

Bak, Seong-Min ^{[2
]}

Yang, Xiao-Qing ^{[3
]}

Cho, Byung-Won ^{[4
]}

Kim, Kwang-Bum ^{[2
]}

机构：

[1] Kookmin Univ, Sch Adv Mat Engn, Seoul 136702, South Korea

[2] Yonsei Univ, Dept Mat Sci & Engn, Seoul 120749, South Korea

[3] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA

[4] Korea Inst Sci & Technol, Battery Res Ctr, Seoul 136791, South Korea

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2009年 / 11卷 / 08期

关键词：

Batteries; Carbon nanotube; Lithium manganese oxide; Nanocomposite; Nanoparticle; ELECTROCHEMICAL CHARACTERIZATION; HYDROTHERMAL SYNTHESIS; ELECTRODES; BATTERIES; INSERTION;

D O I：

10.1016/j.elecom.2009.05.058

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Nano-sized lithium manganese oxide (LMO) dispersed on carbon nanotubes (CNT) has been synthesized successfully via a microwave-assisted hydrothermal reaction at 200 degrees C for 30 min using MnO2-coated CNT and an aqueous LiOH solution. The initial specific capacity is 99.4 mAh/g at a 1.6 C-rate, and is maintained at 99.1 mAh/g even at a 16 C-rate. The initial specific capacity is also maintained up to the 50th cycle to give 97% capacity retention. The LMO/CNT nanocomposite shows excellent power performance and good structural reversibility as an electrode material in energy storage systems, such as lithium-ion batteries and electrochemical capacitors. This synthetic strategy opens a new avenue for the effective and facile synthesis of lithium transition metal oxide/CNT nanocomposite. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1575 / 1578

页数：4

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