Effects of annealing temperature on electrochemical performance of SnSx embedded in hierarchical porous carbon with N-carbon coating by in-situ structural phase transformation as anodes for lithium ion batteries

doi:10.1016/j.jmst.2020.12.068

	Effects of annealing temperature on electrochemical performance of SnSx embedded in hierarchical porous carbon with N-carbon coating by in-situ structural phase transformation as anodes for lithium ion batteries
	Hu, Qianqian 4; Wang, Biao 4; Chang, Shiyong 2; Yang, Chun 3,4,5; Hu, Yunjian 2; Cao, Shubin 2; Lu, Jiqun 3,4; Zhang, Lingzhi 3,4; Ye, Hong 1
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2021-09-10
卷号	84 页码:191-199
关键词	Hierarchical porous carbon SnSx Conducting medium Cycling stability Lithium ion batteries
ISSN号	1005-0302
DOI	10.1016/j.jmst.2020.12.068
通讯作者	Zhang, Lingzhi(lzzhang@ms.giec.ac.cn) ; Ye, Hong(hongye2016@163.com)
英文摘要	Tuned tin chalcogenides rooted in hierarchical porous carbon (HPC) with N-carbon coating layers are prepared by thermal shock under various temperatures (denoted as HPC-SnS2-PAN-Various T). With the increase of annealing temperature, the morphology and phase structure of SnS2, as well as the cyclization degree of polyacrylonitrile (PAN), are significantly changed, which leads to the formation of rod-like SnS and ordered structure of conductive N-carbon layer. By combining HPC, N-carbon coating derived from the cyclization of PAN, with 1D SnS nanorods generated from structural phase transformation of SnS2, the optimized composite (HPC-SnS2-PAN-500) as anode for lithium ion batteries (LIBs) provides buffer space for volume changes during alloying/dealloying process, builds a highly conductive network as well as decreases irreversible capacity from solid electrolyte interphase and enhances the ion/electron transport. Attributed to the above merits from composition regulation and architecture modification by sulfur depletion and PAN cyclization, this target anode exhibits an extraordinary cycling stability with a high specific capacity of 652.5 mA h/g at 0.5 A/g after 900 cycles. It suggests that rod-like SnS embedded in HPC with cyclized PAN layers by thermal treatment approach renders a potential structural design of anode materials for LIBs. (C) 2021 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
资助项目	K.C. Wong Education Foundation ; National Natural Science Foundation of China[21573239] ; China Guangzhou Automobile Group Co., Ltd.
WOS关键词	LI-ION ; TRANSITION ; SIZE ; PAN
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	JOURNAL MATER SCI TECHNOL
WOS记录号	WOS:000665531000021
资助机构	K.C. Wong Education Foundation ; National Natural Science Foundation of China ; China Guangzhou Automobile Group Co., Ltd.
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/33451]
专题	中国科学院广州能源研究所
通讯作者	Zhang, Lingzhi; Ye, Hong
作者单位	1.Guangdong Polytech Normal Univ, Ind Training Ctr, Guangzhou 510665, Peoples R China 2.GAC Automot Res & Dev Ctr, Guangzhou 511434, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China 5.Univ Sci & Technol China, Nano Sci & Technol Inst, Suzhou 215123, Peoples R China
推荐引用方式 GB/T 7714	Hu, Qianqian,Wang, Biao,Chang, Shiyong,et al. Effects of annealing temperature on electrochemical performance of SnSx embedded in hierarchical porous carbon with N-carbon coating by in-situ structural phase transformation as anodes for lithium ion batteries[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2021,84:191-199.
APA	Hu, Qianqian.,Wang, Biao.,Chang, Shiyong.,Yang, Chun.,Hu, Yunjian.,...&Ye, Hong.(2021).Effects of annealing temperature on electrochemical performance of SnSx embedded in hierarchical porous carbon with N-carbon coating by in-situ structural phase transformation as anodes for lithium ion batteries.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,84,191-199.
MLA	Hu, Qianqian,et al."Effects of annealing temperature on electrochemical performance of SnSx embedded in hierarchical porous carbon with N-carbon coating by in-situ structural phase transformation as anodes for lithium ion batteries".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 84(2021):191-199.