Electrolyte and interphase engineering through solvation structure regulation for stable lithium metal batteries

作     者：Hai Su Haikuo Zhang Zifeng Chen Mengjie Li Jiwei Zhao Haiyan Xun Jie Sun Yunhua Xu Hai Su;Haikuo Zhang;Zifeng Chen;Mengjie Li;Jiwei Zhao;Haiyan Xun;Jie Sun;Yunhua Xu

作者机构：School of Materials Science and EngineeringKey Laboratory of Advanced Ceramics and Machining Technology(Ministry of Education)and Tianjin Key Laboratory of Composite and Functional MaterialsTianjin UniversityTianjin 300072China State Key Laboratory of Silicon MaterialsSchool of Materials Science and EngineeringZhejiang UniversityHangzhou 310027China Key Laboratory for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2023年第34卷第12期

页      面：401-408页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 0703[理学-化学] 

基　　金：supported by the National Key Research and Development Program of China(No.2019YFE0118800) 

主　　题：Lithium metal batteries Lithium nitrate Trimethyl phosphate Solvation structures Solid-electrolyte interphases 

摘      要：Lithium metal batteries(LMBs)are considered to be one of the most promising high-energy-density battery ***,their practical application in carbonate electrolytes is hampered by lithium dendrite growth,resulting in short cycle ***,an electrolyte regulation strategy is developed to improve the cyclability of LMBs in carbonate electrolytes by introducing LiNO3 using trimethyl phosphate with a slightly higher donor number compared to NO_(3)^(-)as a *** not only allows the formaion of Li^(+)-coordinated NO3 but also achieves the regulation of electrolyte solvation structures,leading to the formation of robust and ion-conductive solid-electrolyte interphase films with inorganic-rich inner and organic-rich outer layers on the Li metal *** a result,high Coulombic efficiency of 99.1%and stable plating/stripping cycling of Li metal anode in LilCu cells were ***,excellent performance was also demonstrated in Li||LiNi_(0.83)Co_(0.11)Mn_(0.06)O_(2)(NCM83)full cells and Cul/NCM83 anodefree cells using high mass-loading *** work provides a simple interphase engineering strategy through regulating the electrolyte solvation structures for high-energy-density LMBs.