Synthesis and electrochemical properties of LiFePO(4)/C composite cathode material prepared by a new route using supercritical carbon dioxide as a solvent

	Synthesis and electrochemical properties of LiFePO(4)/C composite cathode material prepared by a new route using supercritical carbon dioxide as a solvent
	Zhang JW ; Zhuo LH ; Zhang LL ; Wu CY ; Zhang XB ; Wang LM
刊名	journal of materials chemistry
	2011
卷号	21 期号:19 页码:6975-6980
关键词	LITHIUM-ION BATTERIES ELECTRODE MATERIALS SOLVOTHERMAL SYNTHESIS PHOSPHO-OLIVINES NANOPARTICLES TEMPERATURE PERFORMANCE POWDERS GROWTH
ISSN号	0959-9428
通讯作者	zhang xb
中文摘要	from the viewpoint of energy efficiency and cost, an intensive search for less energy demanding synthesis methods for lifepo(4) appears quite attractive and is still in full swing. here, we report that carbon coated lifepo(4) (lifepo(4)/c) powders can be successfully synthesized by a new route using supercritical carbon dioxide as a solvent. the obtained high-purity lifepo(4)/c powders are uniform in shape and 0.5 mu m to 1 mu m in size. as for the electrochemical performance, at the current density of 0.1 c, the electrode exhibits a discharge capacity of 158 ma h g(-1) as well as good cycling stability-there is no obvious capacity fading after 100 cycles. when the synthesis reaction temperature increases from 50 to 200 degrees c, the primary particle size grows from approximately 0.5 to 2 mu m, and the initial discharge capacity decreases from 158 to 41 ma h g(-1), which shows that 50 degrees c is the optimum temperature to synthesize lifepo(4) in supercritical carbon dioxide. needless to say, such a new approach, which is not specific to lifepo(4), offers great opportunities for the synthesis of new electrode materials.
收录类别	SCI收录期刊论文
语种	英语
公开日期	2012-06-11
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/45002]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Zhang JW,Zhuo LH,Zhang LL,et al. Synthesis and electrochemical properties of LiFePO(4)/C composite cathode material prepared by a new route using supercritical carbon dioxide as a solvent[J]. journal of materials chemistry,2011,21(19):6975-6980.
APA	Zhang JW,Zhuo LH,Zhang LL,Wu CY,Zhang XB,&Wang LM.(2011).Synthesis and electrochemical properties of LiFePO(4)/C composite cathode material prepared by a new route using supercritical carbon dioxide as a solvent.journal of materials chemistry,21(19),6975-6980.
MLA	Zhang JW,et al."Synthesis and electrochemical properties of LiFePO(4)/C composite cathode material prepared by a new route using supercritical carbon dioxide as a solvent".journal of materials chemistry 21.19(2011):6975-6980.