Li2FeSiO4/C cathode material synthesized by template-assisted sol-gel process with Fe2O3 microsphere

被引：40

作者：

Qu, Long ^{[1
]}

Fang, Shaohua ^{[1
]}

Yang, Li ^{[1
]}

Hirano, Shin-ichi ^{[2
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Chem & Chem Technol, Shanghai 200240, Peoples R China

[2] Shanghai Jiao Tong Univ, Hirano Inst Mat Innovat, Shanghai 200240, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2012年 / 217卷

基金：

中国国家自然科学基金;

关键词：

Lithium-ion battery; Cathode materials; Li2FeSiO4; Fe2O3; microsphere; LITHIUM-ION BATTERIES; ELECTROCHEMICAL PERFORMANCE; NANOCOMPOSITE; TEMPERATURE; LIFEPO4; MN;

D O I：

10.1016/j.jpowsour.2012.05.093

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：

Fe2O3 microsphere is used as iron source and template to prepare Li2FeSiO4/C nanocomposite by a sol-gel method. The carbon content, structure, and morphology of the sample are characterized by carbon-sulfur inferred analysis (CSI). X-ray diffraction (XRD), scanning electron microscope (SEM), and transmission electron microscopy (TEM) techniques. The results show that the Li2FeSiO4/C owns pure phase and sphere-like morphology as a result of an agglomeration of nanoparticles with an average particle size of about 50 nm. The Li2FeSiO4/C exhibits stable cycle performance at different rates from 0.1 C to 2 C, and its capacity at 0.1 C rate can reach 160 mAh g(-1). (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：243 / 247

页数：5

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