A novel carbon source coated on C-LiFePO4 as a cathode material for lithium-ion batteries

doi:10.1007/s11581-015-1549-1

	A novel carbon source coated on C-LiFePO4 as a cathode material for lithium-ion batteries
	Shi, Ming 1; Kong, Ling-Bin 1,2; Liu, Jin-Bei 1; Yan, Kun 1; Li, Jia-Jia 1; Dai, Yan-Hua 1; Luo, Yong-Chun 2; Kang, Long 2
刊名	IONICS
	2016-02
卷号	22 期号:2 页码:185-192
关键词	Porous-carbon-coated LiFePO4 Carbothermal reduction Electronic conductivity High-rate capability Lithium-ion batteries
ISSN号	0947-7047
DOI	10.1007/s11581-015-1549-1
英文摘要	The poor electronic conductivity and low lithium-ion diffusion are the two major obstacles to the largely commercial application of LiFePO4 cathode material in power batteries. In order to improve the defects of LiFePO4, a novel carbon source polyacrylonitrile (PAN), which would form the hierarchical porous structure after carbonization, is fabricated and used. This work comes up with a simple and facile carbothermal reduction method to prepare porous-carbon-coated LiFePO4 (C-LiFePO4-PC) composite and to study the effect of carbon-coated temperature on ameliorating the electrochemical performance. The obtained C-LiFePO4-PC composite shows a high initial discharge capacity of 164.1 mA h g(-1) at 0.1 C and good cycling stability as well as excellent rate capacity (49.0 mA h g(-1) at 50 C). The most possible factors that improve the electrochemical performance could be related to the enhancement of electronic conductivity and the existence of porous carbon layers. In a word, the C-LiFePO4-PC material would become an excellent candidate for application in the fields of lithium-ion batteries.
资助项目	National Natural Science Foundation of China[51362018][21163010] ; Key Project of Chinese Ministry of Education[212183]
WOS研究方向	Chemistry ; Electrochemistry ; Physics
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000369016200005
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33776]
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Kong, Ling-Bin
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Shi, Ming,Kong, Ling-Bin,Liu, Jin-Bei,et al. A novel carbon source coated on C-LiFePO4 as a cathode material for lithium-ion batteries[J]. IONICS,2016,22(2):185-192.
APA	Shi, Ming.,Kong, Ling-Bin.,Liu, Jin-Bei.,Yan, Kun.,Li, Jia-Jia.,...&Kang, Long.(2016).A novel carbon source coated on C-LiFePO4 as a cathode material for lithium-ion batteries.IONICS,22(2),185-192.
MLA	Shi, Ming,et al."A novel carbon source coated on C-LiFePO4 as a cathode material for lithium-ion batteries".IONICS 22.2(2016):185-192.