报告题目:Battery Research at Argonne National Laboratory
报告人:Dr Anthony K. Burrell
时 间:4月24日(周二)上午 10:00 – 11:30
地 点:2138cn太阳集团古天乐理教404
主持人:夏定国(教授)
报告内容摘要:
Lithium ion batteries store and release energy by utilizing complex structural transformations where a lithium moves from one electrode to another, via an ionic conductive media. In classical lithium ion batteries this involves layered metal oxides, such as LiCoO2, as the positive electrode and graphite as the anode. There are significant technological requirements for storage systems with higher energy and power. Recently the layered-layered materials (Li2MnO3.LiMO2 (M = Mn, Ni, Co)) have demonstrated the highest capacities seen in lithium ion batteries. However the structural complexity of these materials is frustrating efforts to further develop these systems. Other high capacity systems include the lithium-oxygen and lithium-sulfur couples which can be consider to be at the intersection of batteries and fuel cells. The chemistry of the Li-O2 is complicated by positive electrodes which require the efficient conversion of O2 to solid lithium oxides, and back, at appreciable rates. In the Li-S system solid S8 has to be reversibly converted to Li2S without producing any solid intermediates. All of these systems require a much deeper understanding of the fundamental process if they are to achieve their full potential as energy storage systems. In this presentation I will describe some work at Argonne National Laboratory to further develop lithium ion batteries and “beyond” lithium ion systems.
报告人简介:
Anthony K. Burrell received a Ph.D. in chemistry in 1990 from the University of Auckland, New Zealand. He was a postdoctoral fellow at the University of Texas, Austin before joining Los Alamos National Laboratory as a Directors Fellow in 1992. He joined the Chemistry Department at Massey University, New Zealand and 1994 and was awarded the Chair of Synthetic Chemistry in 1998. In 2001 he returned to LANL as a Scientist where he has established new programs in materials chemistry. Research areas include hydrogen storage, catalyst, electrochromic materials, metal oxides, metal nitrides, transparent conductors, and ionic liquids. In 2011 he moved to Argonne National Laboratory to lead the Emerging Materials and technology Group in energy storage. He is currently the Head of Department for the CSE Electrochemical Energy Storage Department at Argonne National Laboratory. He has authored over 170 publications in refereed journals (h-index 33) with over 3700 citations, has 27 issued US patents and over 30 patents pending.