标题：Effect of Iron Source and Temperature on Charge/Discharge Performance of LiFePO4
作者：Liu, Hongquan; Hao, Feixiang; Yao, Fenglin; Gu, Yijie; Chen, Yunbo
作者机构：[Liu, Hongquan; Hao, Feixiang; Yao, Fenglin; Gu, Yijie] Shandong Univ Sci & Technol, Coll Mat Sci & Engn, Qingdao 266590, Peoples R China.; [Chen, Y 更多
会议名称：6th Cross-Strait Conference on Advanced Engineering Materials
会议日期：NOV 08-11, 2011
来源：LATEST DEVELOPMENT OF APPLIED MATERIALS TECHNOLOGY
关键词：Lithium ion battery; Cathode material; LiFePO4; Iron source
摘要：LiFePO4 compound has been paid considerable attention as a promising positive electrode material. In this work, LiFePO4 compound was synthesized by the solid carbon thermal reduction reactions, where Fe2O3, Fe(OH)(3) and FeSO4 is used as the iron resource respectively. All the synthesized products are pure phases except that using FeSO4 as the iron resource. The SEM images show porous morphologies, but different iron resource samples show different degree of pore ratio. According to the results of charge/discharge curves, capacity of the sample prepared by Fe(OH)(3) as the iron resource shows superior to those of other samples. The result is attributed to more pores in the sample, which is benefit to electrolyte penetrating, short Li-ion diffusion distance.