Synthesis of LiFePO4/C composite as a cathode material for lithium-ion battery by a novel two-step method

	Synthesis of LiFePO4/C composite as a cathode material for lithium-ion battery by a novel two-step method
	Zhang, Le 1; Xiang, Hongfa 1; Zhu, Xuefeng 2; Yang, Weishen 2; Wang, Haihui 1
刊名	journal of materials science
	2012-04-01
卷号	47 期号:7 页码:3076-3081
英文摘要	in this study, lifepo4/c is synthesized via a novel two-step method. the first step is the synthesis of nano-sized intermediate fepo4 by a modified sol-gel method. a fast and full combustion procedure is involved to remove carbon and control the size of the intermediate particles. the second step is to prepare lifepo4/c by combining solid-state reaction with controllable carbon coating. this two-step method is facile to prepare nano-sized lifepo4 and easy to optimize the carbon content for surface coating. x-ray diffraction shows that the lifepo4/c composite possesses good crystallinity. spherical morphology with a diameter of 30-150 nm is observed by scanning electron microscope and transmission electron microscope. electrochemical measurements indicate that the lifepo4/c composite exhibits discharge capacities of 162, 144, 126, and 106 mah g(-1) at 0.1, 1, 2, and 5c, respectively. no capacity fading is observed in 50 cycles.
WOS标题词	science & technology ; technology
类目[WOS]	materials science, multidisciplinary
研究领域[WOS]	materials science
关键词[WOS]	solid-state synthesis ; nano-sized lifepo4 ; electrochemical performance ; gel synthesis ; carbon ; electrode ; route ; challenges ; phosphate
收录类别	SCI
语种	英语
WOS记录号	WOS:000299331500008
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/142967]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.S China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Le,Xiang, Hongfa,Zhu, Xuefeng,et al. Synthesis of LiFePO4/C composite as a cathode material for lithium-ion battery by a novel two-step method[J]. journal of materials science,2012,47(7):3076-3081.
APA	Zhang, Le,Xiang, Hongfa,Zhu, Xuefeng,Yang, Weishen,&Wang, Haihui.(2012).Synthesis of LiFePO4/C composite as a cathode material for lithium-ion battery by a novel two-step method.journal of materials science,47(7),3076-3081.
MLA	Zhang, Le,et al."Synthesis of LiFePO4/C composite as a cathode material for lithium-ion battery by a novel two-step method".journal of materials science 47.7(2012):3076-3081.