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.

引用

页码：A85 / A87

页数：3

共 14 条

[11] Improved electrochemical performance of a LiFePO4-based composite cathode [J].