电源技术2012，Vol.36Issue(1)：52-54,132,4.
非整比磷酸铁锂LixM0.01FePO4的合成与电化学性能研究
Synthesis and electrochemical properties of non-stoichiometric LixM0.01FePO4
摘要
Abstract
Reheological phase reaction method (RPR) was used to synthesize non-stoichiometric lithium iron phosphate (LixY0.01FePO4 and Lix MO0.01FeP04).The samples were characterized by X-ray diffraction and scanning electron microscope techniques. The results show that both LixY0.01FePO4and LixMo0.01FeP04 have the same crystal structure as that of the LiFePO4, but its cell parameters have little difference from that of LiFePO4. The electrochemical properties of both LixY0.01FePO4 and Lix MO0.01FeP04 were tested by battery testing system .At a low discharging rate (0.05 C), LiFePO4 samples doping with Y and Mo have the initial discharge specific capacities of 135, 130 mAh/g; Even at a higher discharging rate (0.5 C), both LixY0.01FePO4 and Lix MO0.01FeP04 remain specific capacities of 108, 106 mAh/g. Besides, the LixY0.01FePO4 have better electrochemical cycle performance than that of LixMo0.01FeP04 .The reason for LixY0.01FePO4 and Lix MO0.01FeP04 to behave good electrochemical properties as cathodes were discussed also.关键词
锂离子电池/LiFePO4/正极材料/流变相反应Key words
lithium ion batteries/LiFePO4/cathode material/reheological phase reaction分类
信息技术与安全科学引用本文复制引用
李华,汤晶,王石泉,王升富,冯传启..非整比磷酸铁锂LixM0.01FePO4的合成与电化学性能研究[J].电源技术,2012,36(1):52-54,132,4.基金项目
湖北省教育厅重点项目(D20101006) （D20101006）
