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Ultrafast Electrochemical Growth of Lithiophilic Nano-Flake Arrays for Stable Lithium Metal Anode
Shen, Haorui1,2; Qi, Fulai1,2; Li, Hucheng1,2; Tang, Pei1,2; Gao, Xuning1,2; Yang, Shan1,3; Hu, Zichen1,2; Li, Zhuangnan4; Tan, Jun5; Bai, Shuo1,2; Li, Feng1,2,6
Corresponding AuthorTan, Jun(tanjun@jihualab.com) ; Bai, Shuo(sbai@imr.ac.cn) ; Li, Feng(fli@imr.ac.cn)
2021-08-31
Source PublicationADVANCED FUNCTIONAL MATERIALS
ISSN1616-301X
Pages10
AbstractLithium dendrites caused by nonuniform Li+ flux leads to the capacity fade and short-circuit hazard of lithium metal batteries. The solid electrolyte interface (SEI) is critical to the uniformity of Li+ flux. Here, an ultrafast preparation of uniform and vertical Cu7S4 nano-flake arrays (Cu7S4 NFAs) on the Cu substrate is reported. These arrays can largely improve the lithiophilicity of the anode and form Li2S-enriched SEI due to the electrochemical reduction of Cu7S4 NFAs with lithium. A further statistical analysis suggests that the SEI, with a higher content of Li2S, is more effective to inhibit the formation of lithium dendrites and yields less dead lithium. A quite stable coulombic efficiency of 98.6% can be maintained for 400 cycles at 1 mA cm(-2). Furthermore, at negative to positive electrode capacity ratio of 1.5 (N/P = 1.5), the full battery of Li@Cu7S4 NFAs||S shows 83% capacity retention after 100 cycles at 1 C, much higher than that of Li@Cu||S (33%). The findings demonstrate that high Li2S content in the SEI is crucial for the dendrite inhibition to achieve better electrochemical performance.
KeywordCu S-7 (4) nano-flake arrays dead lithium Li S-2-enriched solid electrolyte interface lithium dendrites lithium metal anode
Funding OrganizationNational Natural Science Foundation of China ; National Key R&D Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; LiaoNing Revitalization Talents Program ; DNL Cooperation Fund, CAS
DOI10.1002/adfm.202103309
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[52020105010] ; National Natural Science Foundation of China[51927803] ; National Natural Science Foundation of China[51525206] ; National Key R&D Program of China[2016YFB0100100] ; National Key R&D Program of China[2016YFA0200100] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA22010602] ; LiaoNing Revitalization Talents Program[XLYC1908015] ; DNL Cooperation Fund, CAS[DNL202019]
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000693308200001
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/166910
Collection中国科学院金属研究所
Corresponding AuthorTan, Jun; Bai, Shuo; Li, Feng
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
3.Sichuan Univ, Sch Chem Engn, 24 South Sect 1,Yihuan Rd, Chengdu 610065, Peoples R China
4.Univ Cambridge, Dept Mat Sci & Met, Cambridge CB3 0FS, England
5.Ji Hua Lab, Foshan 528000, Guangdong, Peoples R China
6.Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Shen, Haorui,Qi, Fulai,Li, Hucheng,et al. Ultrafast Electrochemical Growth of Lithiophilic Nano-Flake Arrays for Stable Lithium Metal Anode[J]. ADVANCED FUNCTIONAL MATERIALS,2021:10.
APA Shen, Haorui.,Qi, Fulai.,Li, Hucheng.,Tang, Pei.,Gao, Xuning.,...&Li, Feng.(2021).Ultrafast Electrochemical Growth of Lithiophilic Nano-Flake Arrays for Stable Lithium Metal Anode.ADVANCED FUNCTIONAL MATERIALS,10.
MLA Shen, Haorui,et al."Ultrafast Electrochemical Growth of Lithiophilic Nano-Flake Arrays for Stable Lithium Metal Anode".ADVANCED FUNCTIONAL MATERIALS (2021):10.
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