Facile fabrication of nanoporous graphene powder for high-rate lithium-sulfur batteries

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	Facile fabrication of nanoporous graphene powder for high-rate lithium-sulfur batteries
	Zhuang, Huajie; Deng, Wei; Wang, Wei; Liu, Zhaoping
刊名	RSC ADVANCES
	2017
卷号	7 期号:9 页码:5177-5182
ISSN号	2046-2069
英文摘要	Well-designed structures constructed from graphene are excellent sulfur host matrices which can improve the electrochemical performance of lithium-sulfur (Li-S) batteries by alleviating the dissolution of polysulfide and improving the electrical conductivity of the electrode. Herein, high quality graphene powder with a nanoshell inside was successfully designed and fabricated through a simple spray-drying and Fe-catalyzed chemical vapor deposition (CVD) process. In this structure, the intrinsic interconnected graphene nanoshells afford sufficient space for accommodating the active sulfur material, provide effective entrapment for the dissolution of polysulfide and facilitate fast electron and mass transport. Benefiting from this unique architecture, a high specific discharge capacity of 400 mA h g(-1) with well-maintained two-step galvanostatic discharge profiles can be obtained at an ultra-high current density of 13.4 A g(-1).
公开日期	2017-12-25
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/14112]
专题	2017专题
推荐引用方式 GB/T 7714	Zhuang, Huajie,Deng, Wei,Wang, Wei,et al. Facile fabrication of nanoporous graphene powder for high-rate lithium-sulfur batteries[J]. RSC ADVANCES,2017,7(9):5177-5182.
APA	Zhuang, Huajie,Deng, Wei,Wang, Wei,&Liu, Zhaoping.(2017).Facile fabrication of nanoporous graphene powder for high-rate lithium-sulfur batteries.RSC ADVANCES,7(9),5177-5182.
MLA	Zhuang, Huajie,et al."Facile fabrication of nanoporous graphene powder for high-rate lithium-sulfur batteries".RSC ADVANCES 7.9(2017):5177-5182.