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高立军教授课题组在Journal of Power Sources (IF 4.951 ,一区)上发表研究论文

来源:球探体育比分老版本 发布者:系统管理员发布时间:2015-03-05浏览次数:248

标    题:
Effect of copper doping on LiMnPO4 prepared via hydrothermal route
作    者:
Jiangfeng Ni, Lijun Gao
论文摘要:

Fine-sized, well-crystallized LiMnPO4 and two Cu-doped derivatives (2% and 5% Cu2+ doping) are readily prepared via a hydrothermal route. X-ray diffraction (XRD) combined with structural analysis, scanning electron microscopy (SEM), transmission electron microscopy (TEM), specific surface area analysis, and galvanostatic charge–discharge tests are applied to characterize these materials. The structure analysis shows that only a negligible amount of Cu2+ ions (0.2%) occupy the Li sites in the 2% Cu-doped material, while a considerable amount of Cu2+ ions (1.8%) occupy the Li sites in the 5% Cu-doped one. The electrochemical tests show that the 2% Cu-doped LiMnPO4 displays an improved electrochemical performance
compared with the undoped LiMnPO4, while the 5% Cu-doped LiMnPO4 exhibits a decreased activity.

原文链接:
http://dx.doi.org/10.1016/j.jpowsour.2011.03.073