Enhanced electrochemical performance of LiFe0.6Mn0.4PO4/C cathode   material prepared by ferrocene-assisted calcination process

doi:10.1016/j.jpowsour.2014.11.080

CORC > 北京大学 > 化学与分子工程学院

	Enhanced electrochemical performance of LiFe0.6Mn0.4PO4/C cathode material prepared by ferrocene-assisted calcination process
	Yang, Xinhe ; Mi, Yingying ; Zhang, Weidong ; Wu, Borong ; Zhou, Henghui
刊名	电源杂志
	2015
关键词	Lithium ion battery Carbon layer Ferrocene Lithium iron manganese phosphate LITHIUM-ION BATTERIES HYDROTHERMAL SYNTHESIS CARBON COATINGS TAP DENSITY IRON-OXIDE LIFEPO4 LIMNPO4 GRAPHITIZATION MICROSPHERES COMPOSITE
DOI	10.1016/j.jpowsour.2014.11.080
英文摘要	A ferrocene-assisted calcination process (FACP) has been applied during the preparation of LiFe0.6Mn0.4PO4/C cathode material. Ferrocene works as a promoter to improve the quality of the coated carbon layers. The influence of ferrocene on the property of carbon layers and electrochemical performance of LiFe0.6Mn0.4PO4/C has been investigated systematically. The LiFe0.6Mn0.4PO4/C with FACP presents more uniformly and tightly coated carbon layers with higher graphitization degree than the sample without FACP. High-quality carbon layers can greatly enhance the electrochemical performance of cathode materials. The LiFe0.6Mn0.4PO4/C with FACP behaves higher discharge capacities (163.6 and 120.7 mAh g(-1) at 0.2C and 20C, respectively) than the LiFe0.6Mn0.4PO4/C without FACP (158.4 and 111.5 mAh g(-1) at the same rates). Furthermore, the LiFe0.6Mn0.4PO4/C with FACP exhibits excellent cycling performance even at 60 degrees C, still delivering capacity retention above 96% after 100 cycles at 3C, while the retention of the controlled sample is only 70% after 75 cycles. The cycling performance of the LiFe0.6Mn0.4PO4/C with FACP at high temperature is largely improved. (C) 2014 Elsevier B.V. All rights reserved.; Electrochemistry; Energy & Fuels; SCI(E); EI; 0; ARTICLE; wubr@bit.edu.cn; hhzhou@pku.edu.cn; 823-830; 275
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/150311]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Yang, Xinhe,Mi, Yingying,Zhang, Weidong,et al. Enhanced electrochemical performance of LiFe0.6Mn0.4PO4/C cathode material prepared by ferrocene-assisted calcination process[J]. 电源杂志,2015.
APA	Yang, Xinhe,Mi, Yingying,Zhang, Weidong,Wu, Borong,&Zhou, Henghui.(2015).Enhanced electrochemical performance of LiFe0.6Mn0.4PO4/C cathode material prepared by ferrocene-assisted calcination process.电源杂志.
MLA	Yang, Xinhe,et al."Enhanced electrochemical performance of LiFe0.6Mn0.4PO4/C cathode material prepared by ferrocene-assisted calcination process".电源杂志 (2015).