| 磷酸铁锂与镍钴锰酸锂复合材料的电化学性能 |
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| 引用本文： | 彭南发,许炼,朱华丽,徐明,陈召勇.磷酸铁锂与镍钴锰酸锂复合材料的电化学性能[J].电源技术,2017,41(4). |
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| 作者姓名： | 彭南发 许炼 朱华丽 徐明 陈召勇 |
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| 作者单位： | 长沙理工大学材料科学与工程学院,湖南长沙,410114 |
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| 基金项目： | 国家自然科学基金，湖南省自然科学基金，湖南省科技计划项目，湖南省教育厅科学研究项目，长沙理工大学大学生创新性实验计划项目 |
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| 摘 要： | 对磷酸铁锂与镍钴锰酸锂复合正极材料的合成和电化学性能进行了研究。将磷酸铁锂与镍钴锰酸锂按照一定的质量比混合后得到复合正极材料。该复合材料结合了磷酸铁锂和镍钴锰酸锂的优点,表现出了优异的电化学性能。利用X射线衍射(XRD)、扫描电子显微镜(SEM)、充放电测试和交流阻抗等表征方法对复合正极材料进行了表征和分析。结果表明,磷酸铁锂与镍钴锰酸锂的质量百分比为30∶70时,该复合正极材料具有更优异的电化学性能。
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| 关 键 词： | 镍钴锰酸锂 磷酸铁锂 正极材料 复合材料 锂离子电池 |
Electrochemical characterization of LiFePO4 and LiNi0.5Co0.2Mn0.3O2 composite cathode materials |
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| PENG Nan-fa,XU Lian,ZHU Hua-li,XU Ming,CHEN Zhao-yong.Electrochemical characterization of LiFePO4 and LiNi0.5Co0.2Mn0.3O2 composite cathode materials[J].Chinese Journal of Power Sources,2017,41(4). |
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| Authors: | PENG Nan-fa XU Lian ZHU Hua-li XU Ming CHEN Zhao-yong |
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| Abstract: | The synthesis and electrochemical characterization of LiFePO4 and LiNi0.5Co0.2Mn0.3O2 composite cathode materials were studied.The composite cathode materials were obtained by mixing LiFePO4 with LiNi0.5Co0.2Mn0.3O2 according to a certain percentage.The composite materials with the advantages of LiFePO4 and LiNi0.5Co0.2Mn0.3O2 have excellent electrochemical characterization.The properties of the composite materials were characterized and analyzed by X-ray diffraction (XRD),scanning electron microscopy (SEM),charge/discharge test and AC impedance.The results show that the electrochemical characterization of composite materials is more excellent when the mass percentage of LiFePO4 and LiNi0.5Co0.2Mn0.3O2 is 30∶70. |
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| Keywords: | LiNi0 5Co0 2Mn0 3O2 LiFePO4 cathode materials composite materials lithium ion batteries |
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