Design composite structure materials for high-energy batteries 

 Haijun Yu

Institute of Materials Science and Engineering, Beijing University of Technology

Abstract: For the rapid development of modern society, high-energy storage devices are in demand.  Actually in the past 30 years, many kinds of energy storage devices, such as lithium-ion batteries (LIBs) and so on, have been developed.  However, most of the commercially active electrode materials still cannot support the demand of society.  Research efforts on higher specific energy density and long cycle life alternative materials are mainly focused on element doping or surface modification.  Composite-structure electrode materials through introducing structure units has been attracted great attentions in recent years.  Herein, some important scientific points focusing on composite-structure materials design for better electrochemical performances, reveal and distinction of composite structures based on average and local structure analysis methods, and understanding the relationship between these interior composite structures and their electrochemical performance, will be discussed.

Biography: Dr. Haijun Yu is currently a full professor at College of Materials Science and Engineering, Beijing University of Technology (BJUT). He received his Ph.D. in 2007 from Northeastern University, and then did research work on advanced battery materials and devices at General Research Institute for Non-ferrous Metals (GRINM) and National Institute of Advanced Industrial Science and Technology (AIST). Dr. Yu was awarded as “Young Thousand Talented Program of China” and “National Science Fund for Excellent Young Scholars”. His current research interests focus on the advanced electrode materials for lithium/sodium/aluminum-ions batteries, all-solid-state batteries, novel devices for energy storage, and reaction mechanism.