4月17日，应350vip8888新葡的京集团邀请，佐治亚理工学院 (Georgia Institute of Technology) Min Zhou教授到350vip8888新葡的京集团进行了访问和学术交流。Min Zhou教授作了题为 “Mechanical Reliability of Rechargeable Battery Electrode Materials”的报告。来自350vip8888新葡的京集团、机电学院、宇航学院、机械学院及化工与环境学院等单位的老师和同学共40余人参加了本次报告会。报告会由陈鹏万教授主持。

　　报告的内容主要是关于锂电池在使用过程中其化学反应和力学性能的研究。报告从以下几个方面研究了锂电池在日常使用，即持续的充放电过程中其内部的化学反应和力学性能的变化：一、电池中的组分，不同的元素（如Li和C）与不同的电解液和按不同元素的配比制成的电池其性能会有显著变化；二、电池使用材料的尺度效应，纳米尺度下的材料制成的电池具有更好的弹性效应，相较于普通材料更不易产生变形或裂纹等力学性能劣化；三、将电池电量耗尽，从空载状态将电池充满，电池内部更容易发生变形或产生裂纹，不利于电池的寿命。Min Zhou教授从力学和化学的基本原理出发对上述内容进行了解读，给出了内应力与化学反应度有关的耦合本构方程，计算了非均质材料内部变形场，模拟出了电池内部裂纹扩展和开裂的过程。

　　报告引起了与会师生的浓厚兴趣，大家就报告中涉及到技术及应用方面的问题，对除机械和化学能以外影响电池内应力的其他因素（如温度等），算法的选取与相关条件的确定，以及国内外有关方面的最新研究成果和进展进行了热烈的交流和探讨。

　　Min Zhou教授简介：

　　Min Zhou is a Professor in the Woodruff School of Mechanical Engineering and School of Materials Science and Engineering at Georgia Institute of Technology, Atlanta, Georgia, USA. He received his Ph.D. degree in Applied Mechanics from Brown University in 1993 and was a postdoctoral research fellow at California Institute of Technology between 1993 and 1995. His research focuses on the multiphysics behavior of materials at several time and length scales, emphasizing molecular dynamics and finite element simulations as well as experiments with laser interferometry and digital diagnostics. Professor Zhou is a recipient of several awards, including the US National Science Foundation’s CAREER award (formerly known as the Presidential Young Investigator Award) and the Sigma Xi Best Paper Award. He was elected a Fellow of the American Society of Mechanical Engineers (ASME) in 2005 and named a World Class University Professor at Seoul National University in Korea in 2009.