报告题目：

Chemomechanical Degradation of High-Capacity

Electrode Materials for Lithium IonBatteries

报告人:                         Dr. Sulin Zhang

Department of Engineering Science and Mechanics

Department of Biomedical Engineering

Materials Research Institute

The Pennsylvania State University, University Park, PA 16802, United States

时间：2016年5月16日(周一)  9: 30

地点：中国科学院力学研究所1号楼344会议室

报告摘要：

Storage and delivery of the renewable energy present one of the most critical scientific and technological challenges in the twenty-first century. To meet these challenges, enormous efforts have been undertaken to develop rechargeable batteries with new electrode materials that not only have superior energy and power densities, but also are highly resistant to chemomechanical degradation toward long cycle life. In this talk, I will present our recent progress in the experimental and modeling study of the electro-chemical-mechanical phenomena in highcapacity electrode materials for lithium-ion batteries. I will highlight the integration of in situ transmission electron microscopy and multiscale modeling, particularly the strong coupling between electrochemistry and mechanics during the lithiation-delithiation process. I will further present how nanostructuring, nanoporosity, and surface coating can mitigate the battery degradation, and how the strong mechanics-electrochemistry coupling effect can be exploited to realize mechanical energy harvesting.

报告人简介：

Dr. Sulin Zhang received his BS from Dalian University of Technology in 1994 with the highest distinction, MS from Tsinghua University in 1997, and PhD from the University of Illinois,Urbana-Champaign in 2002, all from Engineering Mechanics. He then worked as a postdoctoral fellow in Northwestern University. He is currently a Professor in Department of Engineering Science and Mechanics and Department of Biomedical Engineering at Penn State University. Dr.Zhang’s research has been focused on the roles of mechanical forces and stresses in materials,chemistry, and biology. He is the recipient of the Early Career Development Award from National Science Foundation in 2007, the PSEAS Outstanding Research Award in 2016 from Penn State. Dr. Zhang is severing as the founding Associated Editor for the journal of Extreme Mechanics Letters, and an editorial board member for Nature Partner Journal: Computational Materials.