题    目：Mechanics of Large-Volume-Change Materials for Advanced Rechargeable Batteries

报告人：Prof. Shuman Xia, Woodruff School of Mechanical Engineering, Georgia Institute of Technology

时    间：2018年05月11日上午10:30~11:30

地    点：南一楼E317力学系会议室

邀请人：杨辉 教授

报告摘要：

   There is currently a growing demand for low-cost, high-performance electrochemical energy storage solutions to consumer electronics, vehicle electrification and stationary power management. The successful development and deployment of such solutions necessitate a fundamental understanding of the mechanical properties of electrochemical materials, as well as the intricate coupling between the electro-chemo-mechanical processes in these materials. In this talk, I will present a combined experimental and computational investigation of deformation and fracture in large-volume-change electrode materials for their use in advanced rechargeable batteries. The presentation will focus on: (i) study of deformation and failure processes in lithiated silicon and germanium using novel in situ and ex situ nanomechanical experiments; (ii) continuum and atomistic modeling for revealing the mechanistic origins of these phenomena; and (iii) outlook on multiphysics research in advanced rechargeable batteries.

报告人简介：

   Dr. Shuman Xia is an Associate Professor (with tenure) in the Woodruff School of Mechanical Engineering at the Georgia Institute of Technology. He obtained his B.S. in Theoretical and Applied Mechanics with highest distinction from Beijing University in 2003, and then attended Brown University where he received a M.S. in Applied Mathematics and a Ph.D. in Engineering (Solid Mechanics) in 2008. He joined the faculty of Georgia Tech in 2011 after completing postdoctoral studies at the California Institute of Technology. His research interests include mechanics of energy storage materials, experimental nano- and micro-mechanics, fracture and failure of heterogeneous media, and mechanics of active materials. He is the recipient of the 2012 Orr Early Career Award from the Materials Division of the American Society of Mechanical Engineers (ASME), the 2017 James W. Dally Young Investigator Award from the Society for Experimental Mechanics (SEM), and the NSF CAREER Award.