SEMINAR
The State Key Lab of
High Performance Ceramics and Superfine Microstructure
Shanghai Institute of Ceramics, Chinese Academy of Sciences
中国科学院 上海硅酸盐研究所高性能陶瓷和超微结构国家重点实验室

Direct observation of Li in lithium ion battery cathode materials

 

报告人: 黄荣博士

Abstract：Cathode materials, such as LiCoO₂ and LiMn₂O₄, constitute the key component determining the performance of a lithium ion battery. The complicated microstructural changes and phase transitions taking place in these materials during the charge-discharge cycle critically influence the battery’s lifetime. Direct observation of light elements with atomic level resolution is necessary to elucidate the rich phenomena related totheir charge/discharge behavior and capacity fading. Here we reportfor the first time the direct observation of Li and O in nanoparticles of LiMn₂O₄  and LiCoO₂ thin film using a Cs-corrected scanning transmission electron microscope.

时间：10 月 12 日（星期二）下午 02:00

联系人：顾辉研究员（2318）