The Preparation and Characterization of LiFe0.98Mn0.02PO4/C by Spray-drying and Low Temperature Reduction Route

摘要：

　　The LiFe0.98Mn0.02PO4/C was synthesized by spray-drying and low temperature reduction route using FePO4·2H2O as precursor,which was prepared by a simple co-precipitation method.The LiFe0.98Mn0.02PO4/C sample was characterized by X-ray diffraction (XRD),scanning electron microscope (SEM) and electrochemical measurements.The XRD analysis and SEM images show that sample has the good ordered structure and spherical particle.The charge-discharge tests demonstrate that the powder has the better electrochemical properties,with an initial discharge capacity of 162.1 mAh·g-1 and 155.8 mAh·g-1 at current density of 0.1 C and 1C,respectively.The capacity retention reaches 99.4% after 100 cycles at 1C.

关键词： LiFePO4/C Mn doping Spray-drying Low temperature reduction

作者: Jia-feng ZHANG Bao ZHANG Xue-yi GUO He-zhang CHEN Jian-long WANG Chao SHEN Jun-chao ZHENG

作者单位: School of Metallurgical Science and Engineering, Central South University, Changsha 410083, Hunan, China

会议类型: 国际会议

会议名称: 2012 International Conference on Chemical Engineering,Metallurgical Engineering and Metallic Materials(2012化工、冶金和金属材料国际会议(CMMM2012))

会议地点: 昆明

会议语种:英文

页码: 525-528

在线出版日期: 2012-10-12（万方平台首次上网日期，不代表论文的发表时间）