Garnet-type solid electrolyte:Advances of ionic transport performance and its application in all-solid-state batteries  

作　　者：P.M.GONZALEZ PUENTE Shangbin SONG Shiyu CAO Leana Ziwen RANNALTER Ziwen PAN Xing XIANG Qiang SHEN Fei CHEN 

机构地区：[1]State Key Lab of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070,China [2]International School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China

出　　处：《Journal of Advanced Ceramics》2021年第5期933-972,共40页先进陶瓷（英文）

基　　金：supported by the National Key R&D Program of China(Nos.2018YFB0905600 and 2017YFB0310400);the National Natural Science Foundation of China(No.51972246);Fundamental Research Funds for the Central Universities in China,State Key Laboratory of Advanced Electromagnetic Engineering and Technology(Huazhong University of Science and Technology);the"111"project(No.B13035);the Science and Technology Project of Global Energy Interconnection Research Institute Co.,Ltd.(No.SGGR0000WLJS1801080).

摘　　要：All-solid-state lithium batteries(ASSLBs),which use solid electrolytes instead of liquid ones,have become a hot research topic due to their high energy and power density,ability to solve battery safety issues,and capabilities to fulfill the increasing demand for energy storage in electric vehicles and smart grid applications.Garnet-type solid electrolytes have attracted considerable interest as they meet all the properties of an ideal solid electrolyte for ASSLBs.The garnet-type Li_(7)La_(3)Zr_(2)O_(12)(LLZO)has excellent environmental stability;experiments and computational analyses showed that this solid electrolyte has a high lithium(Li)ionic conductivity(10^(-4)-10^(-3) S·cm^(-1)),an electrochemical window as wide as 6 V,stability against Li metal anode,and compatibility with most of the cathode materials.In this review,we present the fundamentals of garnet-type solid electrolytes,preparation methods,air stability,some strategies for improving the conductivity based on experimental and computational results,interfacial issues,and finally applications and challenges for future developments of LLZO solid electrolytes for ASSLBs.

关 键 词：Li_(7)La_(3)Zr_(2)O_(12)(LLZO) solid electrolytes lithium ionic conductivity lithium concentration mobility of lithium-ion air stability solid-state batteries 

分 类 号：TM912[电气工程—电力电子与电力传动] TQ131.11[化学工程—无机化工]