Consolidating Lithiothermic-Ready Transition Metals for Li2S-Based Cathodes

doi:10.1002/adma.202002403

	Consolidating Lithiothermic-Ready Transition Metals for Li2S-Based Cathodes
	Xing, Zhenyu 2,3; Tan, Guoqiang 4; Yuan, Yifei 4,6; Wang, Bao 5; Ma, Lu 1; Xie, Jing 7; Li, Zesheng 7; Wu, Tianpin 1; Ren, Yang 1; Shahbazian-Yassar, Reza 6
刊名	ADVANCED MATERIALS
	2020-06-25
页码	11
关键词	activation potential Li-S bonds lithiothermic reactions lithium sulfide transition metals
ISSN号	0935-9648
DOI	10.1002/adma.202002403
英文摘要	Li2S holds a promising role as a high-capacity Li-containing cathode, circumventing use of metallic lithium in constructing next-generation batteries to replace current Li-ion batteries. However, progress of Li2S cathode has been plagued by its intrinsic drawbacks, including high activation potentials, poor rate performance, and rapid capacity fading during long cycling. Herein, a series of Li2S/transition metal (TM) nanocomposites are synthesized via a lithiothermic reduction reaction, and it is realized that the presence of TMs in Li2S matrix can transform electrochemical behaviors of Li2S. On the one hand, the incorporation of W, Mo, or Ti greatly increases electronic and ionic conductivity of Li2S composites and inhibits the polysulfide dissolution via the TM-S bond, effectively addressing the drawbacks of Li2S cathodes. In particular, Li2S/W and Li2S/Mo exhibit the highest ionic conductivity of solid-phase Li-ion conductors ever-reported: 5.44 x 10(-2)and 3.62 x 10(-2)S m(-1), respectively. On the other hand, integrating Co, Mn, and Zn turns Li2S into a prelithiation agent, forming metal sulfides rather than S(8)after the full charge. These interesting findings may shed light on the design of Li2S-based cathode materials.
资助项目	University of Waterloo ; Natural Sciences and Engineering Research Council of Canada (NSERC) ; Waterloo Institute for Nanotechnology ; NSF[1551693] ; NSF[CBET-1805938] ; U.S. Department of Energy (DOE), Office of Energy Efficiency and Renewable Energy, Vehicle Technologies Office ; DOE Office of Science[DE-AC02-06CH11357] ; U.S. DOE, Office of Science, Office of Basic Energy Sciences[DE-AC02-06CH11357] ; Beijing Institute of Technology Teli Young Fellow Program[3100011181905] ; [18KJ04] ; [2018KQNCX059] ; [8S0478] ; [2020A1515011549]
WOS关键词	RECHARGEABLE BATTERY ; NANOPOROUS GRAPHENE ; LI2S ; PERFORMANCE ; CARBON ; ELECTROLYTE ; OXIDE
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000542825400001
资助机构	University of Waterloo ; Natural Sciences and Engineering Research Council of Canada (NSERC) ; Waterloo Institute for Nanotechnology ; NSF ; U.S. Department of Energy (DOE), Office of Energy Efficiency and Renewable Energy, Vehicle Technologies Office ; DOE Office of Science ; U.S. DOE, Office of Science, Office of Basic Energy Sciences ; Beijing Institute of Technology Teli Young Fellow Program
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/41205]
专题	中国科学院过程工程研究所
通讯作者	Lu, Jun; Ji, Xiulei; Chen, Zhongwei
作者单位	1.Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA 2.Univ Waterloo, Waterloo Inst Nanotechnol, Waterloo Inst Sustainable Energy, Dept Chem Engn, Waterloo, ON N2L 3G1, Canada 3.Oregon State Univ, Dept Chem, Corvallis, OR 97331 USA 4.Argonne Natl Lab, Chem Sci & Engn Div, Lemont, IL 60439 USA 5.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China 6.Univ Illinois, Dept Mech & Ind Engn, Chicago, IL 60607 USA 7.Beijing Inst Technol, Sch Chem & Chem Engn, Minist Educ, Key Lab Cluster Sci, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Xing, Zhenyu,Tan, Guoqiang,Yuan, Yifei,et al. Consolidating Lithiothermic-Ready Transition Metals for Li2S-Based Cathodes[J]. ADVANCED MATERIALS,2020:11.
APA	Xing, Zhenyu.,Tan, Guoqiang.,Yuan, Yifei.,Wang, Bao.,Ma, Lu.,...&Chen, Zhongwei.(2020).Consolidating Lithiothermic-Ready Transition Metals for Li2S-Based Cathodes.ADVANCED MATERIALS,11.
MLA	Xing, Zhenyu,et al."Consolidating Lithiothermic-Ready Transition Metals for Li2S-Based Cathodes".ADVANCED MATERIALS (2020):11.