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

作　　者：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 

机构地区：[1]Yangtze Delta Region Institute(Huzhou),University of Electronic Science and Technology of China,Huzhou 313002,China [2]College of Materials Science and Engineering,Zhejiang University of Technology,Hangzhou 310014,China [3]School of Materials Science&Engineering,Zhejiang University,Hangzhou 310027,China [4]Department of Engineering Technology,Huzhou College,Huzhou 313000,China [5]Institute of Fundamental and Frontier Science,University of Electronic Science and Technology of China,Chengdu 611371,China [6]School of Materials Science&Engineering,Zhejiang Sci-Tech University,Hangzhou 310018,China [7]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 [8]Zhejiang Academy of Science and Technology for Inspection&Quarantine,Zhejiang Hangzhou 311215,China [9]State Key Laboratory of Photocatalysis on Energy and Environment,Fuzhou University,Fuzhou 350116,China

出　　处：《Journal of Materials Science & Technology》2024年第10期68-78,共11页材料科学技术（英文版）

基　　金：National Natural Science Foun-dation of China(Grant Nos.52372235,52073252,52002052 and 22379020);Natural Science Foundation for Distinguished Young Scholars of Zhejiang Province(Grant No.LR20E020001);Zhejiang Provincial Natural Science Foundation of China(No.LQ23E020009);Science and Technology Department of Zhejiang Province(Grant No.2023C01231);Key Research and Development Project of Science and Technology Department of Sichuan Province(No.2022YFSY0004);Key Laboratory of Engineering Dielectrics and Its Application(Harbin University of Science and Technology);Min-istry of Education(Grant No.KFM 202202);Open Project Program of the State Key Laboratory of Photocatalysis on Energy and Environment(Grant No.SKLPEE-KF202206),Fuzhou University.

摘　　要：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 CHBr_(2)F plasma technology to simultaneously construct dual bromine-fluorine-enriched interphases:NiBr_(2)-NiF_(2) 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 NiBr_(2)-NiF_(2)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 LiNi_(0.8)Co_(0.1)Mn_(0.1)O_(2)(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.

关 键 词：Plasma Solid electrolyte interphase LIBR LIF Lithium metal anodes 

分 类 号：TB383.1[一般工业技术—材料科学与工程] TM911.41[电气工程—电力电子与电力传动]