Versatile synthesis of carbon-rich LiFePO4 enhancing its electrochemical properties

被引：49
作者：
Bauer, EM [1 ]
Bellitto, C
Pasquali, M
Prosini, PP
Righini, G
机构：
[1] CNR, Ist Struttura Mat, I-00016 Rome, Italy
[2] Univ Roma La Sapienza, Fac Ingn, Dipartimento ICMMPM, Rome, Italy
[3] ENEA, Idrocomb, CR Casaccia, I-00060 Rome, Italy
来源：
ELECTROCHEMICAL AND SOLID STATE LETTERS | 2004年 / 7卷 / 04期
关键词：
D O I：
10.1149/1.1651393
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
LiFePO4/C composites were prepared from thermal decomposition of Fe(II) organophosphonates Fe[(RPO3)(H2O)] (R = methyl or phenyl group! in the presence of Li2CO3 at high temperature and under inert atmosphere. The compounds were characterized by chemical analysis, thermogravimetric analysis and differential scanning colorimetry, X-ray powder diffraction, and scanning electron microscopy. Electrodes were fabricated for the electrochemical characterization. The cathode material obtained from Fe[C6H5PO3(H2O)] showed a specific energy evaluated at C/10 rate of about 550 Wh kg(-1). The specific power calculated at 30C rate in excess at 14,000 W kg(-1), while the specific energy was about 28% of the theoretical one. No capacity fading was observed upon cycling. (C) 2004 The Electrochemical Society.
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页码：A85 / A87
页数：3
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