| 正极材料LiFePO4/C的制备与性能 |
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| 引用本文： | 宋月丽,李晶,彭汝芳,楚士晋. 正极材料LiFePO4/C的制备与性能[J]. 电池工业, 2011, 16(3): 176-179 |
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| 作者姓名： | 宋月丽 李晶 彭汝芳 楚士晋 |
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| 作者单位： | 西南科技大学材料科学与工程学院,四川绵阳,621010 |
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| 摘 要： | 通过机械活化、高温固相反应,合成了LiFePO4/C复合正极材料.XRD、粒度分布和SEM表明:材料为纯相的橄榄石型,碳包覆使材料的二次颗粒尺寸有所减小.电化学性能测试结果表明:碳包覆能有效降低材料的电化学极化.在2.6～4.5 V的充放电范围内,LiFePO4/C以0.2 C放电的首次可逆容量为135.41 mAh/...
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| 关 键 词： | LiFePO4 锂离子电池 正极材料 电化学性能 |
Synthesis and performance of cathode material LiFePO_4/C |
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| SONG Yue-li,LI Jing,PENG Ru-fang,CHU Shi-jin. Synthesis and performance of cathode material LiFePO_4/C[J]. Chinese Battery Industry, 2011, 16(3): 176-179 |
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| Authors: | SONG Yue-li LI Jing PENG Ru-fang CHU Shi-jin |
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| Affiliation: | SONG Yue-li*,LI Jing,PENG Ru-fang,CHU Shi-jin(College of Materials Science and Engineering,Southwest University of Science and Technology,Mianyang,Sichuan 621010,China) |
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| Abstract: | LiFePO4/C cathode materials were prepared by mechanical activation and high temperature solid-reation.XRD,particle-size distribution and SEM analysis indicated that the materials were both pure olive-type,the coating of carbon decreased the lattice parameters and made the secondary particle smaller and more homogeneous.Electrochemical tests showed that the coating of carbon reduced the electrochemical reaction polarization of the material.When charge-discharge at 0.2 C in the range of 2.6~4.5 V,the initial ... |
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| Keywords: | LiFePO4 Li-ion battery cathode material electrochemical performance |
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