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投稿时间:2006-07-04
投稿时间:2006-07-04
中文摘要: 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.
中文关键词: 锂离子电池 橄榄石型 LiFePO4 正极材料 改性
Abstract: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.
文章编号:20060317 中图分类号: 文献标志码:
基金项目:教育部科技研究项目(205055);中国航天科工集团支撑技术基金(DLO1-2004);上海市重点学科建设基金(P1304)
引用文本:
徐娜,黄舒烨,林滨梅,等.锂离子电池正极材料LiFePO4的合成及其改性[J].上海电力大学学报,2006,22(3):269-272.
XUNa,HUANG Shu-ye,LIN Bin-mei,et al.Modification Study on LiFePO4 Used as Cathode Materials for Lithium-ion Batteries[J].Journal of Shanghai University of Electric Power,2006,22(3):269-272.
徐娜,黄舒烨,林滨梅,等.锂离子电池正极材料LiFePO4的合成及其改性[J].上海电力大学学报,2006,22(3):269-272.
XUNa,HUANG Shu-ye,LIN Bin-mei,et al.Modification Study on LiFePO4 Used as Cathode Materials for Lithium-ion Batteries[J].Journal of Shanghai University of Electric Power,2006,22(3):269-272.