%0 Journal Article %T 锂离子电池正极材料LiFePO4的合成及其改性 %A 吴一平 %A 张万友 %A 张俊喜 %A 徐娜 %A 林滨梅 %A 黄舒烨 %J - %D 2006 %X 采用共沉淀法合成了锂离子正极材料LiFePO4,考察了不同合成条件对材料结构及性能的影响.研究结果表明:通过碳包覆改性后,LiFePO4的容量可明显提高,SiO2的掺杂对LiFePO4的结构没有影响.同时讨论了上述两种改性方法对材料性能的影响机制.;Aseries of LiFePO4 materials are synthesized by co-precipitation method.The structuraland electrochemical performances of materials under different synthesis conditions are examined.Modified LiFePO4/C composites are synthesized by coating and doping,and examined by the suchmethods as XRD,SEM and constant current charge/discharge.The effects of modification areanatomized both qualitatively and quantitatively %U http://shdlxyxb.ijournals.cn/ch/reader/view_abstract.aspx?file_no=20060317&flag=1