Synthesis and electrochemical characterization of Li1.05RExCryMn2-x-yO4   spinel as cathode material for rechargeable Li-battery

doi:10.1016/j.jpowsour.2007.01.019

CORC > 北京大学 > 化学与分子工程学院

	Synthesis and electrochemical characterization of Li1.05RExCryMn2-x-yO4 spinel as cathode material for rechargeable Li-battery
	Xie, Yanting ; Yang, Rudong ; Yan, Lan ; Qi, Lu ; Dai, Kehua ; He, Ping
刊名	电源杂志
	2007
关键词	secondary Li-ion battery co-doped lithium manganese spinels cyclic voltammetry LICRYMN2-YO4 0-LESS-THAN-OR-EQUAL-TO-Y-LESS-THAN-OR-EQUAL-TO-1 COMPOUNDS LITHIUM BATTERIES SUPERFICIAL PROCESSES CR CONTENT LIMN2O4 BEHAVIOR PHASE CELLS BULK FE
DOI	10.1016/j.jpowsour.2007.01.019
英文摘要	The spinel phases of Li1.05RExCryMn2-x-yO4 (RE= Sc, Ce, Pr, Tb; 0 <= x <= 0.05; 0 <= y <= 0.1) were prepared by a soft chemical method. The structural and electrochemical properties of Li1.05RExCryMn2-x-yO4 were investigated by X-ray diffraction (XRD), Transmission electron microscopy (TEM) and charge-discharge experiments. Rare earth element-Sc and transition metal-Cr as co-substituents stabilize the spinel framework and improve charge-discharge performance. For Li1.05Sc0.01Cr0.03Mn1.96O4, the capacity of the cell maintained 95% of the initial capacity at the 80th cycle. The rare earth elements of the variable valent metals such as Ce3+/4+, Pr3+/4+, Tb3+/4+ with transition metal Cr3+ as co-substituent do not stable framework of spinel or improve the cycling performance. Cyclic voltammetry CV) were measured to provide clues for the improved cycling performance of cathode electrodes. (C) 2007 Published by Elsevier B.V.; Electrochemistry; Energy & Fuels; SCI(E); EI; 0; ARTICLE; 1,SI; 272-277; 168
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/250911]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Xie, Yanting,Yang, Rudong,Yan, Lan,et al. Synthesis and electrochemical characterization of Li1.05RExCryMn2-x-yO4 spinel as cathode material for rechargeable Li-battery[J]. 电源杂志,2007.
APA	Xie, Yanting,Yang, Rudong,Yan, Lan,Qi, Lu,Dai, Kehua,&He, Ping.(2007).Synthesis and electrochemical characterization of Li1.05RExCryMn2-x-yO4 spinel as cathode material for rechargeable Li-battery.电源杂志.
MLA	Xie, Yanting,et al."Synthesis and electrochemical characterization of Li1.05RExCryMn2-x-yO4 spinel as cathode material for rechargeable Li-battery".电源杂志 (2007).