Recent advances in solving Li_(2)CO_(3) problems in garnet-based solid-state battery: A systematic review(2020-2023)  

作　　者：Shaoxiong Han Ziqi Wang Yue Ma Yanlan Zhang Yongzhen Wang Xiaomin Wang 

机构地区：[1]College of Materials Science and Engineering,Taiyuan University of Technology,Taiyuan 030024,Shanxi,China [2]Shanxi Joint Laboratory of Coal based Solid Waste Resource Utilization and Green Ecological Development,Taiyuan 030024,Shanxi,China

出　　处：《Journal of Energy Chemistry》2024年第3期58-76,I0004,共20页能源化学（英文版）

基　　金：funded by The Central Government Guides Local Science and Technology Development Special Fund Projects(Grant No.YDZJSX2022B003);the Shanxi Province Science and Technology Major Projects(Grant No.202101120401008)。

摘　　要：Garnet solid electrolytes are one of the most promising electrolytes for solid-state batteries.However,Li_(2)CO_(3) is a critical issue that hinders the practical application of garnet-based solid-state lithium-ion batteries.There are two sources of Li_(2)CO_(3) contamination.The main one is the aging of garnet electrolytes in the atmosphere.Garnet electrolytes can react with H_(2)O and CO_(2) in the air to form Li_(2)CO_(3),which reduces ion conductivity,increases electrode/garnet electrolyte interface resistance,and deteriorates the electrochemical performance of the battery.Various strategies,such as elemental doping,grain boundary manipulation,and interface engineering,have been suggested to address these issues.The other is the passivation layer(Li_(2)CO_(3),Li_3N,LiOH,Li_(2)O) formed on the surface of the lithium foil after long-term storage,which is ignored by most researchers.To better understand the current strategies and future trends to address the Li_(2)CO_(3) problem,this perspective provides a systematic review of journals published in this field from 2020-2023.

关 键 词：Solid-state batteries Garnet electrolytes Air stability Interface engineering Lithium foil contamination 

分 类 号：O646.1[理学—物理化学] TM912[理学—化学]