陈宇辉博士
牛津大学
时间：12月22日16:30
地点：科学楼902
报 告 摘 要
As a result of the high theoretical specific energy, the rechargeable aprotic Li-O2 battery is under intense investigation worldwide. Early research in this field determined that it was essential to understand the fundamental chemistry and electrochemistry that underpins operation of the Li-O2 battery if there was to be any hope of making progress with the technology.
The presentation will concentrate on the key challenge of the positive electrode; it will consider the processes that occur on O2 reduction (discharge) and oxidation (charge) and include consideration of the stability of electrolytes and electrodes towards the reactive species involved. The use of alternative cathode materials to carbon will be discussed, as will redox mediating molecules to address the major problem of how to oxidise solid Li2O2 at a solid electrode with sufficient rate to sustain adequate current densities.
个 人 简 介
Yuhui Chen is research fellow in University of Oxford, Department of Materials, He received a BS degree in chemistry from Fudan University, China and received his PhD in group of Prof. Peter G. Bruce, at Unversity of St Andrews.
His research interest focuses on fundamental understanding of rechargeable Li-air battery, the stability of electrolytes and facilitating the charging process with redox mediator. He received the Battery Division Student Research Award of The Electrochemical Society.