Dr. Dong Su
Brookhaven National Laboratory
地点：唐仲英楼A313
时间：2016-01-11 10:00
Secondary ion batteries, especially, lithium ion battery (LIB), play an important role in our daily life such as portable devices, electric car and station storage devices. For next generation batteries, we would like to improve their energy density, cycling stability, and safety which demand us to develop new electrode materials. My research focuses on the study of the reaction mechanism of the conversion compounds for secondary ion batteries. In this talk, I would like to show our efforts of using advanced (scanning-) transmission electron microscopy ((S)TEM) to study the redox reactions of the electrode materials for secondary ion batteries. With/Combining different TEM techniques, we are able to probe local structural and chemical information of electrode materials, at a new era of resolution.
Dr. Su is currently a Staff Scientist in Center for Functional Nanomaterials at Bookhaven National Laboratory and adjunct professor in the Department of Materials Science and Engineering at Stony Brook University. He received his B. S. and Ph.D. degrees in Condensed Matter Physics from Nanjing university (advisor: Prof. Yening Wang). His Ph.D project was performed in BLEM, Institute of Physics, CAS with Prof. Kehsin Kuo (Co-advisor). Before joining CFN, he have been working in Laboratory of Ceramics, EPFL, Switzerland; Department of Materials Science and Engineering at University of Illinois at Urbana-Champaign; and the Physics Department at Arizona State University.Sodiation Kinetics of Metal Oxide Conversion Electrodes: a Comparative Study with Lithiation, Nano Letters, 15, pp 5755, (2015)Transitions from Near-Surface to Interior Redox upon Lithiation in Conversion Electrode Materials, Nano Letters, 15 (2), pp 1437, (2015)