Double-layered hollow carbon sphere with large interlayer space combined with Co-SnS cat. as efficient sulfur hosts for Li-S batteries

doi:10.1016/j.jallcom.2021.163608

GIEC OpenIR

	Double-layered hollow carbon sphere with large interlayer space combined with Co-SnS cat. as efficient sulfur hosts for Li-S batteries
	Zhong, Haoxiang; Zhang, Lingzhi
	2022-04-25
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	901 页码:7
通讯作者	Zhang, Lingzhi(lzzhang@ms.giec.ac.cn)
摘要	The low sulfur utilization and the serious shuttle effect of polysulfides severely hamper practical application of Li-S batteries. Herein, sulfur cathodes with the multi-functional structures, featured with double-layered hollow carbon sphere with up to 50 nm interlayer space (DLHC-50) in situ grown Co-SnS catalytic layer is designed and synthesized for lithium sulfur batteries. Co-SnS/DLHC-50 can encapsulate 72% sulfur, higher than 63% for Co-SnS/DLHC-20 due to the large interlayer spaces of DLHC-50. Meanwhile, polysulfides are also effectively restricted via physical entrapment from DLHC-50 as well as chemical binding between CoSnS and polysulfides. Benefiting from the well-constructed host framework, Co-SnS/DLHC-50 @S shows higher specific capacity/capacity retention of 760.4 mA h g-1/72.9% after 500 cycles at 0.5 C, than that of 546.5 mA h g-1/62.2% and 668.9 mA h g-1/62.2%, for DLHC-50 @S, and Co-SnS/DLHC-20 @S, respectively. In addition, the strategy can be also extended to prepare other metal oxides (sulfides)/DLHC-50 for wide applications. Therefore, this work demonstrates a promising route to combat some bottlenecks such as low sulfur utilization, and the shuttle effect of polysulfides for Li-S batteries. (c) 2022 Elsevier B.V. All rights reserved.
关键词	Large interlayer space Double-layered hollow carbon sphere High sulfur utilization Co-SnS catalysis Improved cycling stability
DOI	10.1016/j.jallcom.2021.163608
关键词[WOS]	CONFINING SULFUR ; LITHIUM ; PERFORMANCE ; CATHODE ; NANOPARTICLES ; REDUCTION
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[22075288] ; National Natural Science Foundation of China[21573239]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
项目资助者	National Natural Science Foundation of China
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000749786600001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：5[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/344007/35777
专题	中国科学院广州能源研究所
通讯作者	Zhang, Lingzhi
作者单位	Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Guangdong, 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	Zhong, Haoxiang,Zhang, Lingzhi. Double-layered hollow carbon sphere with large interlayer space combined with Co-SnS cat. as efficient sulfur hosts for Li-S batteries[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2022,901:7.
APA	Zhong, Haoxiang,&Zhang, Lingzhi.(2022).Double-layered hollow carbon sphere with large interlayer space combined with Co-SnS cat. as efficient sulfur hosts for Li-S batteries.JOURNAL OF ALLOYS AND COMPOUNDS,901,7.
MLA	Zhong, Haoxiang,et al."Double-layered hollow carbon sphere with large interlayer space combined with Co-SnS cat. as efficient sulfur hosts for Li-S batteries".JOURNAL OF ALLOYS AND COMPOUNDS 901(2022):7.