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| 离子掺杂对锂离子电池正极材料LiFePO4电化学性能的影响 | |
| 引用本文： | 王婷,赵双群,江涌,刘红飞.离子掺杂对锂离子电池正极材料LiFePO4电化学性能的影响[J].宁夏大学学报(自然科学版),2010,31(1):52-55. |
| 作者姓名： | 王婷 赵双群 江涌 刘红飞 |
| 作者单位： | 1. 宁夏职业技术学院,机电工程系,宁夏,银川,750021;宁夏大学,物理电气信息学院,宁夏,银川,750021 2. 宁夏大学,物理电气信息学院,宁夏,银川,750021 3. 北方民族大学,材料科学与工程学院,宁夏,银川,750021 |
| 基金项目： | 国家民委粉体材料与特种陶瓷重点实验室开放基金，宁夏高等学校科研资助项目 |
| 摘 要： | 采用一步高温固相合成法制备橄榄石型锂离子电池正极材料LixFe（1-y）MoyPO4／C，着重研究了不同锂铁比和铁位钼元素掺杂对材料的充放电性能的影响．结果表明：当Li：Fe=1．03：1时，磷酸铁锂的放电比容量和充放电循环性能最佳，首次放电比容量最高为100．8mAh／g；在富锂基础上，Mo掺杂的浓度为Li1.033Mo0.01Fe0.97PO4／C时，材料表现出的电化学性能最好，所能达到的最大比容量为144．8mAh／g． |
| 关 键 词： | 锂离子电池 正极材料 LiFePO4 改性 |
Effect of Ion Modification on Electrochemical Properties of Cathode Material LiFePO_4 for Li-ion Battery |
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| Wang Ting,Zhao Shuangqun,Jiang Yong,Liu Hongfei.Effect of Ion Modification on Electrochemical Properties of Cathode Material LiFePO_4 for Li-ion Battery[J].Journal of Ningxia University(Natural Science Edition),2010,31(1):52-55. | |
| Authors: | Wang Ting Zhao Shuangqun Jiang Yong Liu Hongfei |
| Institution: | 1.Department of Mechanical and Eletrical Engineering/a>;Vocational and Technical College of Ningxia/a>;Yinchuan 750021/a>;China/a>;2.School of Physics and Electrical Information Engineering/a>;Ningxia University/a>;3.School of Materials Science and Engineering/a>;Northern China University for Nationalities/a>;China |
| Abstract: | LixFe(1-y)MoyPO4/C(x=1,1.03,1.05;y=0.01,0.02,0.03,0.04)was prepared by solid state reaction method to investigate the effect of ion modification on the electrochemical performance of cathode materials LiFePO4.The results show that the first discharge capacities of 100.8mAh/g and the best cyclic charge-discharge performance were obtained for Li:Fe=1.03:1.The maximum discharge capacities of 144.8mAh/g were obtained for Li1.03Mo0.03Fe0.97PO4/C materials on the basis of composite modification. |
| Keywords: | LiFePO4 |
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