Multiple core-shelled sulfur composite based on spherical double-layered hollow carbon and PEDOT:PSS as cathode for lithium-sulfur batteries

doi:10.1016/j.jallcom.2020.155498

GIEC OpenIR

	Multiple core-shelled sulfur composite based on spherical double-layered hollow carbon and PEDOT:PSS as cathode for lithium-sulfur batteries
	Ren, Yilun 1,2; Hu, Jinlong 1; Zhong, Haoxiang 1; Zhang, Lingzhi1
	2020-10-05
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	837 页码:7
通讯作者	Zhang, Lingzhi(lzzhang@ms.giec.ac.cn)
摘要	Nanostructured sulfur cathode with a multiple core-shelled structure, featured with the spherical double-layered hollow carbon/sulfur composite (DLHC/S) coated with a conductive layer of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), is designed and synthesized for lithium-sulfur batteries. Transmission electron microscope images of DLHC/S single nanoparticle show that the sulfur aggregates predominantly in the interior space between the two carbon shells by using a vacuum infiltration process. The electric conductivity of DLHC/S@PEDOT:PSS increases over 5 times as comparing to DLHC/S without PEDOT:PSS coating. The composite cathode exhibits a high reversible capacity of 1089 mAh g(-1) at 0.2C and superior rate capacity of 510 mAh g(-1 )even at 4 C, and also remarkable cycling stability with a capacity decay of 0.097% per cycle after 500 cycles at 1 C. The excellent electrochemical performances for DLHC/S@PEDOT:PSS cathode are primarily attributed to the engineering of the unique multiple core-shell structure of DLHC/S@PEDOT:PSS, which inhibits the sulfur dissolution into the electrolyte and the polysulfide shuttle effect, together with the conductivity enhancement due to PEDOT:PSS coating. (C) 2020 Elsevier B.V. All rights reserved.
关键词	Lithium-sulfur batteries Multiple core-shelled PEDOT:PSS Rate capacity
DOI	10.1016/j.jallcom.2020.155498
关键词[WOS]	POROUS GRAPHENE ; PERFORMANCE ; SPHERES ; ELECTRODE ; CAPACITY ; POLYMER
收录类别	SCI
语种	英语
资助项目	K. C. Wong Education Foundation ; National Natural Science Foundation of China[21573239]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
项目资助者	K. C. Wong Education Foundation ; National Natural Science Foundation of China
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000546685000020
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：21[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/27436
专题	中国科学院广州能源研究所
通讯作者	Zhang, Lingzhi
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangdong Key Lab New & Renewable Energy Res & De, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China 2.Univ Sci & Technol China, Nano Sci & Technol Inst, Suzhou 215123, Peoples R China
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Ren, Yilun,Hu, Jinlong,Zhong, Haoxiang,et al. Multiple core-shelled sulfur composite based on spherical double-layered hollow carbon and PEDOT:PSS as cathode for lithium-sulfur batteries[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2020,837:7.
APA	Ren, Yilun,Hu, Jinlong,Zhong, Haoxiang,&Zhang, Lingzhi.(2020).Multiple core-shelled sulfur composite based on spherical double-layered hollow carbon and PEDOT:PSS as cathode for lithium-sulfur batteries.JOURNAL OF ALLOYS AND COMPOUNDS,837,7.
MLA	Ren, Yilun,et al."Multiple core-shelled sulfur composite based on spherical double-layered hollow carbon and PEDOT:PSS as cathode for lithium-sulfur batteries".JOURNAL OF ALLOYS AND COMPOUNDS 837(2020):7.