Electrochemical performance of LiFePO4 cathode material coated with multi-wall carbon nanotubes

被引：43
|
作者：
Xu, Jing [1 ]
Chen, Gang [1 ]
Li, Xin [1 ]
机构：
[1] Harbin Inst Technol, Dept Appl Chem, Harbin 150001, Peoples R China
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2009年 / 118卷 / 01期
基金：
美国国家科学基金会;
关键词：
Chemical synthesis; Electrical properties; Ceramics; HYDROTHERMAL SYNTHESIS; IRON;
D O I：
10.1016/j.matchemphys.2009.07.019
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
LiFePO4 coated with multi-wall carbon nanotubes (MWCNTs) materials have been prepared through a hydrothermal route followed by heat treatment The samples of pure LiFePO4 and LiFePO4-MWCNTs have been characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM). charge-discharge experiments, cyclic voltammetry(CV) and alternating current(AC) impedance spectroscopy. The LiFePO4-MWCNTs samples show higher discharge capacity and better cycle performance than as-prepared LiFePO4. LiFePO4-MWCNTs (5wt %) exhibited an initial discharge capacity of 160.3 mAh g(-1) at 0.3 C, and the capacity fading is only 0.4% after 50 cycles. (c) 2009 Elsevier B.V. All rights reserved
引用
收藏
页码：9 / 11
页数：3
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