N-doped onion-like carbon as an efficient oxygen electrode for long-life Li-O-2 battery

IMR OpenIR

	N-doped onion-like carbon as an efficient oxygen electrode for long-life Li-O-2 battery
	Shu, Chaozhu; Lin, Yangming; Su, Dangsheng; dssu@imr.ac.cn
	2016
发表期刊	JOURNAL OF MATERIALS CHEMISTRY A
ISSN	2050-7488
卷号	4 期号:6 页码:2128-2136
摘要	Among current rechargeable batteries, the rechargeable lithium-oxygen (Li-O-2) battery is a promising energy storage solution for next-generation smart power grids and electric vehicles due to its superior specific energy. However, the properties of the electrocatalyst still limits the rate capability, round-trip efficiency and cycle stability of the Li-O-2 battery. In this work, the synthesis of mesoporous, nitrogen-doped, onion-like carbon (N-OLC) with large surface area as a new electrocatalyst for the Li-O-2 battery is reported. The catalysts present multiply quasi-spherical concentric sp(2) graphitic shells. This remarkable feature of the mesoporous N-OLC not only facilitates the diffusion of lithium ion and oxygen but also delivers many electrocatalytic sites and eventually improves the Li-O-2 battery performance, including high round-trip efficiency, high specific capacity, good rate performance and excellent cycle stability at nearly 200 cycles. The possible oxygen electrode reaction mechanism during the discharge and charge processes is proposed on the basis of morphology and structure investigations. This work offers exciting possibilities for the development of heteroatom-doped carbon materials for the improvement of Li-O-2 battery performance.
部门归属	[shu, chaozhu] chengdu univ technol, coll mat & chem & chem engn, chengdu 610059, sichuan, peoples r china ; [shu, chaozhu ; lin, yangming ; su, dangsheng] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china
资助者	MOST [2011CBA00504]; NSFC of China [21133010, 51221264, 21261160487, 21473223]; "Strategic Priority Research Program" of the Chinese Academy of Sciences [XDA09030103]
收录类别	sci
语种	英语
WOS记录号	WOS:000369568700013
引用统计	被引频次：59[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/321006/75015
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,Lin, Yangming,Su, Dangsheng,et al. N-doped onion-like carbon as an efficient oxygen electrode for long-life Li-O-2 battery[J]. JOURNAL OF MATERIALS CHEMISTRY A,2016,4(6):2128-2136.
APA	Shu, Chaozhu,Lin, Yangming,Su, Dangsheng,&dssu@imr.ac.cn.(2016).N-doped onion-like carbon as an efficient oxygen electrode for long-life Li-O-2 battery.JOURNAL OF MATERIALS CHEMISTRY A,4(6),2128-2136.
MLA	Shu, Chaozhu,et al."N-doped onion-like carbon as an efficient oxygen electrode for long-life Li-O-2 battery".JOURNAL OF MATERIALS CHEMISTRY A 4.6(2016):2128-2136.