Preparation and electrochemical properties of LiFePO4/C composite cathodes for lithium-ion batteries

Bulletin of materials science

Han Chen¹  Wen-Zhi Yu¹  Shao-Chang Han¹  Chang-Ling Fan¹  Hong-Zhi Bo¹  Zhong-Yu Xu¹ 

[1] The Institute of New Carbon Materials, Hunan University, Changsha, Hunan 410082, P.R. China$$The Institute of New Carbon Materials, Hunan University, Changsha, Hunan 410082, P.R. ChinaThe Institute of New Carbon Materials, Hunan University, Changsha, Hunan 410082, P.R. China$$

关键词: Lithium-ion batteries;    LiFePO4;    cathode material;    composite.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Three kinds of LiFePO₄/C composites for lithium-ion batteries were prepared by solid-state reaction. The crystalline structure, morphology and specific surface area of the composites were investigated by X-ray diffraction, scanning electron microscopy and multi-point Brunauer, Emmett and Teller. The results showed that the samples were all well-ordered olivine structures. A network structure, LiFePO₄/C composite, was obtained using phenolic resin as carbon source. It possessed the highest specific surface area of 115.65 m²/g, exhibited the highest discharge capacity of 164.89 and 149.12 mAh/g at 0.1 C and 1 C rates, respectively. The discharge capacity was completely recovered when 0.1 C rate was applied again.

【 授权许可】

Unknown