Synergy of I-Cl co-occupation on halogen-rich argyrodites and resultant dual-layer interface for advanced all-solid-state Li metal batteries

作     者：Han Yan Ruifeng Song Ruonan Xu Shulin Li Qiaoquan Lin Xinlin Yan Zhenyu Wang Chuang Yu Long Zhang Han Yan;Ruifeng Song;Ruonan Xu;Shulin Li;Qiaoquan Lin;Xinlin Yan;Zhenyu Wang;Chuang Yu;Long Zhang

作者机构：Clean Nano Energy CenterState Key Laboratory of Metastable Materials Science and TechnologyYanshan UniversityQinhuangdao 066004HebeiChina Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy MaterialsCollege of Physics and EnergyFujian Normal UniversityFuzhou 350117FujianChina Institute of Solid State PhysicsVienna University of TechnologyWiedner Hauptstr.8–101040 ViennaAustria Guilin Electrical Equipment Scientific Research Institute Co.Ltd.Guilin 541004GuangxiChina State Key Laboratory of Advanced Electromagnetic Engineering and TechnologySchool of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430000HubeiChina 

出 版 物：《Journal of Energy Chemistry》 (能源化学(英文版))

年 卷 期：2023年第86卷第11期

页      面：499-509,I0011页

核心收录：

学科分类：0820[工学-石油与天然气工程] 0808[工学-电气工程] 0817[工学-化学工程与技术] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：supported by the National Natural Science Foundation of China(52172243) 

主　　题：Sulfide solid electrolytes Argyrodites Dual doping Li metal anode Solid-state batteries 

摘      要：The(electro)chemical stability and Li dendrite suppression capability of sulfide solid electrolytes(SEs)need further improvement for developing all-solid-state Li batteries(ASSLBs).Here,we report advanced halogen-rich argyrodites via I and Cl co-occupation on the crystal ***,a proper I content forms a single phase,whereas an excessive I causes precipitation of two argyrodite phases like a superlattice *** resultant synergistic effect of the optimized composition allows to gain high ionic conductivities at room temperature and-20℃,and enhances the(electro)chemical stability against Li and Li dendrite suppression *** Li|argyrodite interface is very sensitive to the ratio of I and Cl.A LiCl-and LiI-rich double-layer interface is observed from the cell using the SE with optimized composition,whereas too high I content forms only a single interface layer with a mixture of Lil and *** double-layer interface is found to effectively mitigate the Li/SE *** proper designed argyrodite enables ASSLBs to achieve good electrochemical properties at a broad temperature range regardless of the electrode *** co-occupation strategy provides a novel exploration for advanced halogen-rich argyrodite system.