文献类型：期刊文献

英文题名：Electrochemical properties of Mo-doped LiFePO₄ cathode material

作者：Chen Yu[1];Wang Zhong-Li[1];Yu Chun-Yang[1,2];Xia Ding-Guo[1];Wu Zi-Yu[3]

第一作者：Chen Yu

通讯作者：Xia, DG[1]

机构：[1]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100022, Peoples R China;[2]Beijing Union Univ, Biochem Engn Coll, Beijing 100023, Peoples R China;[3]Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China

第一机构：Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100022, Peoples R China

通讯机构：[1]corresponding author), Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100022, Peoples R China.

年份：2008

卷号：24

期号：8

起止页码：1498-1502

外文期刊名：ACTA PHYSICO-CHIMICA SINICA

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000259171000029)】；

语种：英文

外文关键词：LiFePO4; solid-state reaction; doping-ion; electronic conductivity

摘要：Mo-doped LiFePO4 was prepared using (NH4)(6)Mo7O24 center dot 4H(2)O as doping starting material by solid state method under N-2 atmosphere. The Mo-doped LiFePO4 samples were characterized by X-ray diffraction, scanning electron microscope. X-ray photoelectron spectrum, extended X-ray absorption fine structure, positron annihilation technique, and electrochemical performance testing at different discharge rates. The results showed that Mo-doped LiFePO4 preserved pure olivine structure. Mo6+ occupied Fe site and Li site simultaneously and the electronic conductivity of LiFePO4 increased. The Mo-doped LiFePO4 had a reversible capacity 141 mAh center dot g(-1) at 1C discharge rate, and showed good electrochemical properties.