题目：基于电池电极的开框架材料：从氧化物到氟化物

报告人：李驰麟 博士，Max Planck Institute for Solid State Research, Germany

时间：12月18日（周二）下午2: 30；地点：建工楼（化学化工学院B楼）410会议室

邀请人：杨 军 教授（化学化工学院）

报告内容简介：

Open framework solids are attracting more attention due to their wide applications including battery electrode, proton conductor, hydrogen-storage container, wide bandgap semiconductor and catalyst. In order to improve the overall performance of Li-storage materials, structural expansion is a desirable strategy to construct facilitated Li-ion migration channels. In the past decades, numerous efforts have been focused on the structural expansion of metal oxides, e.g. manganese (from spinel LiMn₂O₄ to a-MnO₂) and titanium (from anatase to TiO₂(B)) based compounds. Most recently, the discovery of tavorite-based polyanion frameworks is also a striking progress with moderate expansion of Li-ion channels compared with olivine LiFePO₄, where the narrow channels are easy to be blocked. Indeed, either larger reversible capacity or better rate performance can be achieved in view of the potential modification of Li reaction mechanism. Moreover, open structure materials provide new opportunity for future research on Na and Mg batteries.