CNT@MnO2 Hybrid as Cathode Catalysts Toward Long-Life Lithium Oxygen Batteries

CORC > 上海硅酸盐研究所 > 中国科学院上海硅酸盐研究所 > 能量转换材料重点实验室 > 期刊论文

	CNT@MnO2 Hybrid as Cathode Catalysts Toward Long-Life Lithium Oxygen Batteries
	Wang, Fan 1,2; Wen, Zhaoyin 1,2; Wu, Xiangwei 1
刊名	CHEMISTRYSELECT
	2016-12-16
卷号	1 期号:21 页码:6749-6754
关键词	CNT deep discharge Li-O-2 batteries long-life MnO2
英文摘要	Rechargeable lithium-oxygen (Li-O-2) battery has attracted enormous research attention due to its remarkably high theoretical energy capacity. However, due to the sluggish oxygen reduction and oxygen evolution reaction (ORR and OER) kinetics and incidental side reactions in Li-O-2 battery, cycle life is much shorter than that of lithium ion battery. Here, in-situ growth of branched MnO2 nanosheets on carbon nanotubes (CNTs) were generated and applied as cathode catalyst in Li-O-2 battery. The MnO2 with the morphology of petal-like nanosheets were homogeneously coated outside the CNTs to form core-shell nanowires. This structure can effectively prevent direct contact between the CNTs and Li2O2, thus avoiding or reducing the decomposition of CNTs and the formation of Li2CO3 during charge process, which can also improve the conductivity of the cathode and increase the cycling performance. As a promising cathode catalyst in Li-O-2 batteries, the branched CNT@ MnO2 nanocomposite cathode exhibits a stable deep discharge and charge cycling performance over 50 cycles, and more than 200 cycles with a fixed capacity of 500 mAh g(-1) at a current density of 200 mA g(-1).
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Chemistry, Multidisciplinary
研究领域[WOS]	Chemistry
关键词[WOS]	RECHARGEABLE LI-O-2 BATTERIES ; AIR BATTERIES ; DOPED GRAPHENE ; IN-SITU ; PERFORMANCE ; NANOPARTICLES ; ELECTRODE ; COMPOSITE ; ELECTROCATALYST ; NANOFLAKES
收录类别	SCI
语种	英语
WOS记录号	WOS:000395433600017
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/23591]
专题	上海硅酸盐研究所_能量转换材料重点实验室_期刊论文
作者单位	1.Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Mat Energy Convers, 1295 Ding Xi Rd, Shanghai 200050, Peoples R China 2.Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Fan,Wen, Zhaoyin,Wu, Xiangwei. CNT@MnO2 Hybrid as Cathode Catalysts Toward Long-Life Lithium Oxygen Batteries[J]. CHEMISTRYSELECT,2016,1(21):6749-6754.
APA	Wang, Fan,Wen, Zhaoyin,&Wu, Xiangwei.(2016).CNT@MnO2 Hybrid as Cathode Catalysts Toward Long-Life Lithium Oxygen Batteries.CHEMISTRYSELECT,1(21),6749-6754.
MLA	Wang, Fan,et al."CNT@MnO2 Hybrid as Cathode Catalysts Toward Long-Life Lithium Oxygen Batteries".CHEMISTRYSELECT 1.21(2016):6749-6754.