Self-Adaptive and Electric Field-Driven Protective Layer with Anchored Lithium Deposition Enable Stable Lithium Metal Anode

作     者：Ting Chen Luchao Yue Guoqiang Shu Qing Yang Dong Wang Ruoyang Wang Xianyan Qiao Yan Sun Benhe Zhong Zhenguo Wu Xiaodong Guo Ting Chen;Luchao Yue;Guoqiang Shu;Qing Yang;Dong Wang;Ruoyang Wang;Xianyan Qiao;Yan Sun;Benhe Zhong;Zhenguo Wu;Xiaodong Guo

作者机构：Department of Chemical EngineeringSichuan UniversityChengdu 610065China School of Mechanical EngineeringChengdu UniversityChengdu 610106China 

出 版 物：《Energy & Environmental Materials》 (能源与环境材料（英文）)

年 卷 期：2024年第7卷第3期

页      面：32-40页

核心收录：

学科分类：081702[工学-化学工艺] 0808[工学-电气工程] 08[工学] 0817[工学-化学工程与技术] 

基　　金：supported by projects from the National Natural Science Foundation of China[20A20145,21878195,21805198] the Distinguished Young Foundation of Sichuan Province[2020JDJQ0027] the 2020 Strategic Cooperation Project between Sichuan University and the Zigong Municipal Peoples Government[No.2020CDZG-09] State Key Laboratory of Polymer Materials Engineering[No.2020-3-02] Sichuan Provincial Department of Science and Technology[No.2020YFG0471,No.2020YFG0022,No.2022YFG0124] the Sichuan Province Science and Technology Achievement Transfer and Transformation Project[No21ZHSF0111] the Sichuan University Postdoctoral Interdisciplinary Innovation Fund[2021SCU12084] Start-up funding of Chemistry and Chemical Engineering Guangdong Laboratory[No.2122010] 

主　　题：dense plating/stripping process electric field ferroelectric materials lithium metal batteries solid electrolyte interphase 

摘      要：Lithium metal battery has great development potential because of its lowest electrochemical potential and highest theoretical ***,the uneven deposition of Li^(+)flux in the process of deposition and stripping induces the vigorous growth of lithium dendrites,which results in severely battery performance degradation and serious safety ***,the tetragonal BaTiO3 polarized by high voltage corona was used to build an artificial protective layer with uniform positive polarization direction,which enables uniform Li^(+)*** contrast to traditional strategies of using protective layer,which can guide the uniform deposition of lithium *** ferroelectric protective layer can accurately anchor the Li^(+)and achieve bottom deposition of lithium due to the automatic adjustment of the electric ***,the huge volume changes caused by Li^(+)migration change of the lithium metal anode during charging and discharging is functioned to excite the piezoelectric effect of the protective layer,and achieve seamless dynamic tuning of lithium deposition/*** dynamic effect can accurately anchor and capture Li^(+).Finally,the layer-modified Li anode enables reversible Li plating/stripping over 1500 h at 1 mA cm^(-2)and 50℃in symmetric *** addition,the assembled Li-S full cell exhibits over 300 cycles with N/P≈*** work provides a new perspective on the uniform Li^(+)flux at the Li-anode interface of the artificial protective layer.