Enhanced electrochemical performance of fluorinated carbon nanotube as cathode for Li-O-2 primary batteries

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	Enhanced electrochemical performance of fluorinated carbon nanotube as cathode for Li-O-2 primary batteries
	Tian, Yanyan ; Yue, Hongjun ; Gong, Zhengliang ; Yang, Yong ; Yue HJ(岳红军) ; Gong ZL(龚正良) ; Yang Y(杨勇)
刊名	http://dx.doi.org/10.1016/j.electacta.2012.12.008
	2013
关键词	LITHIUM-ION BATTERIES LI/AIR BATTERIES AIR-ELECTRODE IMPEDANCE GRAPHITE ENERGY XPS
英文摘要	National Natural Science Foundation of China [21021002, 21233004]; National Basic Research Program of China (973 Program) from the Ministry of Science and Technology, China [2011CB935903]; The electrochemical performance of fluorinated carbon nanotube (CFx, x = 0.31) is investigated as oxygen electrode for Li-O-2 battery. When compared with conventional carbon nanotube (CNT)-based electrode in Li-O-2 battery, the battery with CF0.31-based oxygen electrode exhibits significantly enhanced specific capacities and high-rate capability. For CF0.31 based Li-O-2 battery, two electrochemical reactions (oxygen reduction reaction and CF0.31 conversion reaction) occur during discharge process. The defects on the carbon nanotube after fluorination improves electrocatalytic activity of oxygen reduction on the material, and the loosely discharge products coated on the cathode due to the conversion of CF0.31 and reduction of oxygen occurred simultaneously provide further reactive sites on CF0.31 for oxygen reduction, is one of the main reasons for the enhanced electrochemical performance of fluorinated CNT. CF0.31 is shown as one promising material as oxygen electrode which can exhibit a good rate performance and a high specific energy density. (C) 2012 Elsevier Ltd. All rights reserved.
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/88656]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Tian, Yanyan,Yue, Hongjun,Gong, Zhengliang,et al. Enhanced electrochemical performance of fluorinated carbon nanotube as cathode for Li-O-2 primary batteries[J]. http://dx.doi.org/10.1016/j.electacta.2012.12.008,2013.
APA	Tian, Yanyan.,Yue, Hongjun.,Gong, Zhengliang.,Yang, Yong.,岳红军.,...&杨勇.(2013).Enhanced electrochemical performance of fluorinated carbon nanotube as cathode for Li-O-2 primary batteries.http://dx.doi.org/10.1016/j.electacta.2012.12.008.
MLA	Tian, Yanyan,et al."Enhanced electrochemical performance of fluorinated carbon nanotube as cathode for Li-O-2 primary batteries".http://dx.doi.org/10.1016/j.electacta.2012.12.008 (2013).