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Mn^(2+)掺杂及碳包覆对磷酸亚铁锂的影响 被引量：2

Effect of doping manganese and carbon coating on the performance of Li-ion cathode materials LiFePO_4
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摘要 以醋酸锰为Mn源,葡萄糖为C源,采用高温固相法合成磷酸亚铁锂,对磷酸亚铁锂进行了Fe位掺杂和表面的包覆碳研究。用XRD、恒流充放电研究了材料的结构和电化学性能。结果表明:掺杂及包覆后的材料仍然具有橄榄石型晶体结构,并且掺杂及包覆碳后材料的初始容量和循环性能都得到了改善,表现出了良好的循环性能和高倍率性能。 Doping and coated research in Fe-site for LiFePO4 which was prepared by solid phase method with manganese acetate as Mn source and sugar as carbon source was studied.The structure and electrochemical performance of the materia1s were characterized by XRD,ga1vanostatic charge-discharge methods.The resu1ts showed that the materia1s after coating and doping were still o1ivine-type,and the initial capability and cycled performance were all enhanced by coating and doping,the excellent electrochemical reversibility and cycling stability are shown.
作者 王守伟 乔庆东 李琪 孙悦
机构地区 辽宁石油化工大学石油化工学院
出处 《化工科技》 CAS 2010年第4期16-19,共4页 Science & Technology in Chemical Industry
基金 辽宁省自然科学基金项目(20082187) 辽宁省教育厅科技攻关项目(2008379)
关键词 锂离子电池 正极材料 LIFEPO4 掺杂 碳包覆 Lithium ion batteries Cathode materials Lithium iron phosphate Doping Carbon coating
分类号 TM912.9 [电气工程—电力电子与电力传动]
  • 相关文献

参考文献11

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二级参考文献27

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共引文献33

同被引文献21

  • 1王高军,苏光耀,李朝晖,王毅,刘军喜,高德淑.Li_(1+x)V_3O_8的中热固相法合成及其电化学性能[J].电源技术,2005,29(6):349-352. 被引量：6
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二级引证文献8

化工科技
2010年 第4期

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