Synthesis of LiFePO4/C cathode materials by carbothermal reduction method using two kinds of Fe3+ precursors

摘要：

LiFePO4/C cathode materials were synthesized by carbothermal reduction method using FePO4 and citrate ferric (FeC6H5O7·5H2O) as Fe3+ precursors. The samples were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), X-ray photoelectron spectrometry (XPS) and charge-discharge test. The results showed that both the crystallization degree and particle size increased markedly with the increase of synthesis temperature. Among the synthesized cathode materials, LiFePO4/C prepared at 650 ℃showed the best electrochemical properties with an initial discharge specific capacity of 138 mAh·g-1 at 0.2 C, 128 mAh-g-1 at 0.5 C and 116 mAh·g-1 at 1.0 C, respectively.

作者: M E Zhong Z T Zhou

作者单位: College of Materials Science and Engineering,South China University of Technology,Guangzhou 510640,China

会议类型: 国际会议

会议名称: The 8th China International Nanoscience and Technology Symposium(2009第八届中国国际纳米科技湘潭研讨会Cinsts09)

会议地点: 湖南湘潭

会议语种:英文

页码: 1-5

在线出版日期: 2009-10-23（万方平台首次上网日期，不代表论文的发表时间）