| 改进固相法对LiFePO_4/C正极材料的优化合成 |
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| 引用本文： | 韩恩山,王晨旭,朱令之,宋芸聘,陈佳宁.改进固相法对LiFePO_4/C正极材料的优化合成[J].化工新型材料,2009,37(5). |
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| 作者姓名： | 韩恩山 王晨旭 朱令之 宋芸聘 陈佳宁 |
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| 作者单位： | 河北工业大学化工学院应用化学系,天津,300130 |
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| 摘 要： | 使用改进固相法,通过正交实验,考察了锂铁比、葡萄糖加入量,焙烧温度、焙烧时间四因素对LiFePO4正极材料电化学性能的影响.在优化LiFePO4合成条件下合成出具有优良电化学性能的LiFePO4/C正极材料,此方法避免使用球磨机,有利于工业化生产.使用XRD、SEM、循环伏安、交流阻抗对合成产物进行一系列性能分析,室温下0.1C倍率首次放电比容量139.6mAh/g,循环活化后容量上升并稳定至148mAh/g左右,30次循环后容量仍保持在147.4mAh/g.
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| 关 键 词： | 改进固相法 正交实验 电化学性能 |
Optimized synthesis of LiFePO_4/C cathode material via a changed solid state reaction |
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| Han Enshan,Wang Chenxu,Zhu Lingzhi,Song Yunpin,Chen Jianing.Optimized synthesis of LiFePO_4/C cathode material via a changed solid state reaction[J].New Chemical Materials,2009,37(5). |
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| Authors: | Han Enshan Wang Chenxu Zhu Lingzhi Song Yunpin Chen Jianing |
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| Affiliation: | Department of Applied Chemistry;School of Chemical Engineering and Technology;Hebei University of Technology;Tianjin 300130 |
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| Abstract: | The synthesis of LiFePO4 via a changed solid-state reaction was optimized with orthogonal tests.The influence of the factors on the electrochemical properties of the molar ratio of Li /Fe,the quality of glucose,sintering time,and sintering temperature was studied;LiFePO4/C with an excellent electrochemical performance was synthesized under the optimized conditions.Because of without using ball milling,this changed solid state reaction way was conducive to industrial production.The properties of optimized Li... |
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| Keywords: | LiFePO4/C |
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