| 共沉淀法制备锂离子电池正极材料LiFePO4 |
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| 引用本文： | 钟参云,田彦文,曲涛. 共沉淀法制备锂离子电池正极材料LiFePO4[J]. 材料与冶金学报, 2005, 4(4): 272-274,285 |
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| 作者姓名： | 钟参云 田彦文 曲涛 |
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| 作者单位： | 东北大学,材料与冶金学院,辽宁,沈阳,110004;东北大学,材料与冶金学院,辽宁,沈阳,110004;东北大学,材料与冶金学院,辽宁,沈阳,110004 |
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| 摘 要： | 采用共沉淀法制备橄榄石结构的LiFePO4锂离子电池正极材料,通过X射线衍射(XRD)、透射电镜(TEM)、循环伏安(CV)和恒电流充放电测试等方法对其结构、表观形貌及电化学性能进行了分析研究.结果表明,该方法制备的LiFePO4为均一的橄榄石型晶体结构,颗粒微细;低倍率下充放电测试比容量可达126.3 mA·h/g;循环性能良好,充放电100次循环后,容量损失率仅为9.4%.
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| 关 键 词： | 锂离子电池 LiFePO4 共沉淀法 |
| 文章编号： | 1671-6620（2005）04-0272-04 |
| 收稿时间： | 2005-03-30 |
| 修稿时间： | 2005-03-30 |
Preparation of cathode material of LiFePO4 for lithium-ion battery by co-precipitation method |
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| ZHONG Can-yun,TIAN Yan-wen,QU Tao. Preparation of cathode material of LiFePO4 for lithium-ion battery by co-precipitation method[J]. Journal of Materials and Metallurgy, 2005, 4(4): 272-274,285 |
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| Authors: | ZHONG Can-yun TIAN Yan-wen QU Tao |
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| Abstract: | Cathode material of olivine LiFePO_4 for lithium-ion battery was prepared by co-precipitation method.The structure,morphology of particles and electrochemical performance of the samples were investigated by X-ray diffraction,transmission electron microscope,cyclic voltammetry and constant current charge-discharge test.The results show that LiFePO_4 prepared by this method are fine powders with single olivine phase;the specific discharge capacity is 126.3 mAh/g at a low discharging rate;the circulation performance is good with only 9.4% capacity fading after 100 discharge-charge circles.. |
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| Keywords: | Lithium-ion battery LiFePO4 co-precipitation |
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