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材料学院4月12日学术报告预告

来源:   发布日期:2012-04-10

  报告题目: 
  In-situ Plasma Synthesis and Deposition of Energy Storage Devices
   报告人: 
  Pravansu S. Mohanty教授
  报告人背景介绍介绍:
   Mohanty教授,Paul Trojan Collegiate Professor,博士毕业于加拿大McGill University,目前于密歇根大学任教授,Additive Manufacturing Process Laboratory实验室主任。主要研究方向为Thermal Spraying, Laser Materials Processing, Biomaterials, Energy Materials等。
  Mohanty教授发表论文百余篇,现承担多个重大项目,其中包括美国海军的“人造骨骼”项目。发明多项利用热喷涂制备高容量锂离子电池材料的技术,其核心技术已经投放市场,形成经济效益。
  报告内容摘要:
  The conventional fabrication process for energy storage device electrodes is a multi-step procedure and involves the synthesis of active electrode material, addition of materials such as conductive carbon and binders, coating the slurry on to a current collector, thermal treatment of the final composite under vacuum, and finally assembling and testing the electrode in a cell for evaluation of electrochemical properties. Since each of the steps is an individual process in its own capacity, the overall effort is a time intensive and expensive procedure. To address this challenge, a plasma assisted in-situ synthesis and deposition technology which offers a high speed, cost effective and scalable “platform” approach to the synthesis of supercapacitor components, battery components, and novel Li ion cell architectures has been developed at the Additive Manufacturing Process Laboratory of the University of Michigan. Inexpensive chemicals are utilized to obtain the active films directly on the current collectors, thereby eliminating the need for a polymer binder, the necessity for handling and heat treating nanopowders, and the need for the off-site powder manufacturing facilities found in the industry today. This manufacturing process yields products that exhibit high energy and power density at high temperatures and which can be conformally applied to fit any form factor.
  报告时间与地点: 
  4月12日, 上午9点; 5号教学楼, 材料学院5楼报告厅