首页|Liquid-source plasma technology for construction of dual bromine-fluorine-enriched interphases on lithium metal anodes with enhanced performance

Liquid-source plasma technology for construction of dual bromine-fluorine-enriched interphases on lithium metal anodes with enhanced performance

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The electrochemical performance of Li metal anode is closely bound up with the interphase between Li and lithium-loaded skeleton as well as solid electrolyte interphase(SEI)on Li surface.Herein,for the first time,we propose a novel liquid-source CHBr2F plasma technology to simultaneously construct dual bromine-fluorine-enriched interphases:NiBr2-NiF2 interphase on sponge Ni(SN)skeleton and LiBr-LiF-enriched SEI on Li anode,respectively.Based on density functional theory(DFT)calculations and COMSOL multiphysics simulation results,SN skeleton with NiBr2-NiF2 interphase can effectively decrease the local current density with good lithiophilicity.And the LiBr-LiF-enriched SEI on Li surface can function to block electron tunneling and hinder side electrochemical reduction of electrolyte components,thus suppressing the growth of dendrite and facilitating the homogeneous transportation of lithium ions.Consequently,the Li/SN electrodes with modified interphases show remarkable stability with a low overpotential of 22.6 mV over 1800 h at 1 mA cm-2/1 mAh cm-2 and an exceptional average Coulombic efficiency of 99.6％.When coupled with LiNi0.8Co0.1Mn0.1O2(NCM811)cathode,the full cells deliver improved cycling stability with a capacity retention of 79.5％even after 350 cycles at 0.5 C.This study provides a facile and new plasma method for the construction of advanced Li anodes for energy storage.

PlasmaSolid electrolyte interphaseLiBrLiFLithium metal anodes

Ping Liu、Zhong Qiu、Feng Cao、Yongqi Zhang、Xinping He、Shenghui Shen、Xinqi Liang、Minghua Chen、Chen Wang、Wangjun Wan、Yang Xia、Xinhui Xia、Wenkui Zhang

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Yangtze Delta Region Institute(Huzhou),University of Electronic Science and Technology of China,Huzhou 313002,China

College of Materials Science and Engineering,Zhejiang University of Technology,Hangzhou 310014,China

School of Materials Science & Engineering,Zhejiang University,Hangzhou 310027,China

Department of Engineering Technology,Huzhou College,Huzhou 313000,China

Institute of Fundamental and Frontier Science,University of Electronic Science and Technology of China,Chengdu 611371,China

School of Materials Science & Engineering,Zhejiang Sci-Tech University,Hangzhou 310018,China

Key Laboratory of Engineering Dielectric and Applications(Ministry of Education),School of Electrical and Electronic Engineering,Harbin University of Science and Technology,Harbin 150080,China

Zhejiang Academy of Science and Technology for Inspection & Quarantine,Zhejiang Hangzhou 311215,China

State Key Laboratory of Photocatalysis on Energy and Environment,Fuzhou University,Fuzhou 350116,China

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National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNatural Science Foundation for Distinguished Young Scholars of Zhejiang ProvinceZhejiang Provincial Natural Science Foundation of ChinaScience and Technology Department of Zhejiang ProvinceKey Research and Development Project of Science and Technology Department of Sichuan ProvinceKey Laboratory of Engineering Dielectrics and Its Application(Harbin University of Science and Technology)Ministry of EducationOpen Project Program of the State Key Laboratory of Photocatalysis on Energy and EnvironmentFuzhou University

52372235520732525200205222379020LR20E020001LQ23E0200092023C012312022YFSY0004KFM 202202SKLPEE-KF202206

2024

10.1016/j.jmst.2023.09.001

材料科学技术(英文版)
中国金属学会 中国材料研究学会 中国科学院金属研究所

材料科学技术(英文版)

CSTPCD
影响因子：0.657
ISSN：1005-0302
年,卷(期)：2024.177(10)
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