Synthesis of LiFePO4/C cathode materials by carbothermal reduction method using two kinds of Fe3+ precursors

被引：3
作者：
Zhong, M. E. [1 ]
Zhou, Z. T. [1 ]
机构：
[1] S China Univ Technol, Coll Mat Sci & Engn, Guangzhou 510640, Peoples R China
来源：
8TH CHINA INTERNATIONAL NANOSCIENCE AND TECHNOLOGY SYMPOSIUM (CINSTS09) | 2009年 / 188卷
关键词：
CARBON-COATED LIFEPO4; ELECTROCHEMICAL PROPERTIES; LOW-COST; COMPOSITE; BATTERIES; CAPACITY;
D O I：
10.1088/1742-6596/188/1/012012
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
LiFePO4/C cathode materials were synthesized by carbothermal reduction method using FePO4 and citrate ferric (FeC6H5O7 center dot 5H(2)O) as Fe3+ precursors. The samples were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), X-ray photoelectron spectrometry (XPS) and charge-discharge test. The results showed that both the crystallization degree and particle size increased markedly with the increase of synthesis temperature. Among the synthesized cathode materials, LiFePO4/C prepared at 650 C showed the best electrochemical properties with an initial discharge specific capacity of 138 mAh.g(-1) at 0.2 C, 128 mAh.g(-1) at 0.5 C and 116 rnAh.g(-1) at 1.0 C, respectively.
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页数：5
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