Mg Doping of LiFePO4 by co-Precipitation for Lithium Ion Batteries

被引：0

作者：

Hu, Chenglin ^{[1
,2
]}

Yi, Huihua ^{[1
,2
]}

Fang, Haisheng ^{[1
,2
]}

Yang, Bin ^{[1
,2
]}

Yao, Yaochun ^{[1
,2
]}

Ma, Wenhui ^{[1
,2
]}

Dai, Yongnian ^{[1
,2
]}

机构：

[1] Kunming Univ Sci & Technol, Fac Met & Energy Engn, Kunming 650093, Peoples R China

[2] Kunming Univ Sci & Technol, Natl Engn Lab Vacuum Met, Kunming 650093, Peoples R China

来源：

INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2010年 / 5卷 / 10期

关键词：

Lithium ion batteries; LiFePO4; Co-precipitation; cation doping; size effect; ELECTROCHEMICAL PROPERTIES; PHOSPHO-OLIVINES; CU;

D O I：

暂无

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A co-precipitation route was employed for Mg doping in LiFePO4. The prepared samples were characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), atomic absorption spectrometry (AAS), energy dispersive spectroscopy (EDS) and electrochemical cycling measurement at different C-rates. It is found that a much smaller amount of Mg could be doped in LiFePO4 via the co-precipitation route, but Mg doping leads to a more homogenous particle size distribution of LiFePO4. The electrochemical performance measurement showed that the doped LiFePO4 had a better rate performance than the undoped one. The results showed that the co-precipitate route is not a reliable method for Mg doping in LiFePO4.

引用

页码：1457 / 1463

页数：7

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