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Ultrafast Electrochemical Growth of Lithiophilic Nano-Flake Arrays for Stable Lithium Metal Anode

文献类型：期刊论文

作者Shen, Haorui2,3; Qi, Fulai2,3; Li, Hucheng2,3; Tang, Pei2,3; Gao, Xuning2,3; Yang, Shan2,4; Hu, Zichen2,3; Li, Zhuangnan5; Tan, Jun1; Bai, Shuo2,3
刊名ADVANCED FUNCTIONAL MATERIALS
出版日期2021-08-31
页码10
关键词Cu S-7 (4) nano-flake arrays dead lithium Li S-2-enriched solid electrolyte interface lithium dendrites lithium metal anode
ISSN号1616-301X
DOI10.1002/adfm.202103309
通讯作者Tan, Jun(tanjun@jihualab.com) ; Bai, Shuo(sbai@imr.ac.cn) ; Li, Feng(fli@imr.ac.cn)
英文摘要Lithium 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.
资助项目National 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研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
WOS记录号WOS:000693308200001
出版者WILEY-V C H VERLAG GMBH
资助机构National 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
源URL[http://ir.imr.ac.cn/handle/321006/166911]  
专题金属研究所_中国科学院金属研究所
通讯作者Tan, Jun; Bai, Shuo; Li, Feng
作者单位1.Ji Hua Lab, Foshan 528000, Guangdong, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
3.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
4.Sichuan Univ, Sch Chem Engn, 24 South Sect 1,Yihuan Rd, Chengdu 610065, Peoples R China
5.Univ Cambridge, Dept Mat Sci & Met, Cambridge CB3 0FS, England
6.Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
推荐引用方式
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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来源：金属研究所

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