| 流变相法制备LiFe_(1-x)Mg_xPO_4/C正极材料 |
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| 引用本文： | 赖春艳,李慧,李蔚萍.流变相法制备LiFe_(1-x)Mg_xPO_4/C正极材料[J].上海电力学院学报,2010,26(1):49-52. |
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| 作者姓名： | 赖春艳 李慧 李蔚萍 |
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| 作者单位： | 上海电力学院,能源与环境工程学院,上海200090 |
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| 基金项目： | 上海市自然科学基金(07ZR14042);;上海市教委优秀青年教师资助项目(B01672) |
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| 摘 要： | 通过Mg+金属掺杂及流变相制备方法来改善橄榄石结构的LiFePO4的电化学性能.研究了不同掺杂量和不同制备方法对材料结构性能和电化学性能的影响.SEM,XRD,以及电化学测试结果表明,Mg掺杂可以较大程度提高材料电化学性能;0.1 C倍率下首次充电容量达到140.7 mAh/g.利用流变相法制备的材料粒度更小,其电化学性能得到进一步提高,0.1 C时放电比容量达到了147.5 mAh/g.
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| 关 键 词： | 流变相法 Mg掺杂 锂离子电池 正极材料 |
| 收稿时间： | 2009/6/30 0:00:00 |
Preparation of LiFe1-x Mgx PO4/C Cathode Material by Rheological Phase Method |
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| LAI Chun-yan,LI Hui and LI Wei-ping.Preparation of LiFe1-x Mgx PO4/C Cathode Material by Rheological Phase Method[J].Journal of Shanghai University of Electric Power,2010,26(1):49-52. |
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| Authors: | LAI Chun-yan LI Hui and LI Wei-ping |
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| Affiliation: | School of Thermal Power and Environmental Engineering;Shanghai University of Electric Power;Shanghai 200090;China |
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| Abstract: | Mg-doped and the rheological phase method are applied to improve the electrochemical performances of LiFePO4.The effect of different doping content and different preparation method on the properties of LiFePO4 are studied.The effect of temperature and content of Mg doping on the structure and chemical performance of LiFePO4 are researched.The results of SEM,XRD and electrochemical performances indicate that Mg doping can improve the electrochemical performance obviously,the discharge capacity of LiFe1-xMgxP... |
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| Keywords: | rheological phase method Mg-doping Lithium-ion battery cathode material |
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