Preparation and electrochemical properties of LiFePO4/C composite withnetwork structure for lithium ion batteries
来源期刊：中国有色金属学报(英文版)2007年第5期
论文作者：陈晗 于文志 韩绍昌 徐仲榆
文章页码：951 - 951
Key words：LiFePO4/C composite; lithium ion batteries; electrochemical properties; network structure
Abstract: The bare LiFePO4 and LiFePO4/C composites with network structure were prepared by solid-state reaction. The crystalline structures, morphologies and specific surface areas of the materials were investigated by X-ray diffractometry(XRD), scanning electron microscopy(SEM) and multi-point brunauer emmett and teller(BET) method. The results show that the LiFePO4/C composite with the best network structure is obtained by adding 10% phenolic resin carbon. Its electronic conductivity increases to 2.86×10-2 S/cm. It possesses the highest specific surface area of 115.65 m2/g, which exhibits the highest discharge specific capacity of 164.33 mA？h/g at C/10 rate and 149.12 mA？h/g at 1 C rate. The discharge capacity is completely recovered when C/10 rate is applied again.
基金信息：the National Natural Science Foundation of China
the Applied Basic Research of Hunan Province, China
