Hierarchical Nitrogen-Doped Graphene/Carbon Nanotube Composite Cathode for Lithium-Oxygen Batteries

IMR OpenIR

	Hierarchical Nitrogen-Doped Graphene/Carbon Nanotube Composite Cathode for Lithium-Oxygen Batteries
	Shu, Chaozhu; Li, Bo; Zhang, Bingsen; Su, Dangsheng; dssu@imr.ac.cn
	2015
发表期刊	CHEMSUSCHEM
ISSN	1864-5631
卷号	8 期号:23 页码:3973-3976
摘要	The lithium-oxygen (Li-O-2) battery is a very appealing candidate for advanced high energy applications owing to its exceptionally high specific energy. However, its poor energy efficiency, rate capability, and cyclability remain key barriers to its practical application. In this work, using a rationally designed cathode based on a bimodal mesoporous nitrogen-doped graphene/carbon nanotube (NGC) composite, we have developed a Li-O-2 battery demonstrating enhanced round-trip efficiency (ca. 85%) and excellent cyclability over 400cycles under a high current rate of 500mAg(-1). The excellent cyclability and rate capability are attributed to improved stability of the aggressive LiO2 intermediate on the nitrogen-doped carbon surface in addition to the favorable hierarchical architecture of NGC. These results demonstrate a valuable research direction to achieve highly stable and reversible Li-O-2 batteries through tuning the surface chemistry of the cathode in addition to finding a stable electrolyte solvent.
部门归属	[shu, chaozhu ; li, bo ; zhang, bingsen ; su, dangsheng] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, liaoning, peoples r china ; [shu, chaozhu] chengdu univ technol, coll mat & chem & chem engn, chengdu 610059, sichuan, peoples r china
关键词	Carbon Cathode Electrocatalysis Lithium-oxygen Batteries Nitrogen-doping
资助者	MOST [2011CBA00504]; NSFC of China [21133010, 51221264, 21261160487, 21473223, 21573255]; Chinese Academy of Sciences [XDA09030103]; Institute of Metal Research [Y3NBA211A1]
收录类别	sci
语种	英语
WOS记录号	WOS:000366016300006
引用统计	被引频次：52[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/74879
专题	中国科学院金属研究所
通讯作者	dssu@imr.ac.cn
推荐引用方式 GB/T 7714	Shu, Chaozhu,Li, Bo,Zhang, Bingsen,et al. Hierarchical Nitrogen-Doped Graphene/Carbon Nanotube Composite Cathode for Lithium-Oxygen Batteries[J]. CHEMSUSCHEM,2015,8(23):3973-3976.
APA	Shu, Chaozhu,Li, Bo,Zhang, Bingsen,Su, Dangsheng,&dssu@imr.ac.cn.(2015).Hierarchical Nitrogen-Doped Graphene/Carbon Nanotube Composite Cathode for Lithium-Oxygen Batteries.CHEMSUSCHEM,8(23),3973-3976.
MLA	Shu, Chaozhu,et al."Hierarchical Nitrogen-Doped Graphene/Carbon Nanotube Composite Cathode for Lithium-Oxygen Batteries".CHEMSUSCHEM 8.23(2015):3973-3976.