Effect of Carbon Sources on the Morphology of LiFePO4 Cathode Materials for Lithium Ion Batteries

被引：16

作者：

Bai, Y. -M. ^{[1
]}

Chen, H. ^{[2
]}

Han, Sh. -Ch. ^{[1
]}

机构：

[1] Hunan Univ, Coll Mat Sci & Engn, Changsha 410082, Hunan, Peoples R China

[2] Hunan Univ Technol, Coll Met, Zhuzhou 412000, Peoples R China

来源：

RUSSIAN JOURNAL OF ELECTROCHEMISTRY | 2011年 / 47卷 / 01期

关键词：

lithium-ion batteries; cathode materials; lithium-iron phosphate; carbon; ELECTROCHEMICAL PROPERTIES; COATED LIFEPO4; SECONDARY BATTERIES; COMPOSITE CATHODES; PERFORMANCE; PHOSPHATE; IRON;

D O I：

10.1134/S1023193511010034

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The LiFePO4 materials were prepared by incorporating conductive carbon from pyrolysising three different carbon sources (acetylene black, glucose and phonetic resin). The morphology LiFePO4/C was investigated by the SEM. Results revealed that the carbon precursor has much effect on the morphology of the samples. The carbon coated LiFePO4 showed much better performance in terms of the discharge capacity and rate capability than the bare LiFePO4. Among the carbon coated LiFePO4, the particles coated with phonetic resin residual carbon exhibited better electrochemical properties than others and a proper mechanism was proposed.

引用

页码：84 / 88

页数：5

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