能源光电青年学术论坛（第十八期）

New Approaches for Enhanced EV Battery Safety and Sustainability

时间：2018年12月21日 上午10:15-11：15

地点：武汉光电国家研究中心A101

报告人：陈政 教授（加州大学圣地亚哥分校）

邀请人：孙永明教授

报告摘要：The development of next-generation energy storage devices and systems for electric vehicles (EVs) relies on materials with significantly improved performance (e.g. energy apacity, power density, stability, safety) and lower cost. In this talk, I will mainly cover two related topics: (1) Design of safety-enhanced lithium-ion batteries. The energy and power density of today’s batteries have been significantly improved during the past 15 years. However, battery safety issue remains a big challenge in the field. Here, I will briefly introduce an internal structure design to regulate the battery safety properties, which is based on a thermo-responsive polymer nanocomposite. (2) Design of energy-efficient recycling and regeneration process for spent batteries. The increasing amount of lithium ion battery consumption will result in the resource shortage and price increase of lithium and precious transition metals (Co, Ni etc.); the wastes generated from disposal of used batteries can cause severe environment pollution. I will talk about an effective strategy to recycle and regenerate spent batteries using a “non-destructive” approach, which will lead to new electrode materials that can show the same level of performance as the native materials.

Dr. Zheng Chen is an Assistant Professor in NanoEngineering department, Chemical Engineering and Materials Science Program at University of California, San Diego. He received his B.S. from Tianjin University in 2007 and Ph.D. from UCLA in 2012 (with Prof. Yunfeng Lu), both in Chemical Engineering. He did his postdoc research at Stanford University with Profs. Zhenan Bao and Yi Cui. His research focuses on energy storage and conversion, water desalination and environmental sustainability. The research of Chen group is funded by NSF, DOE, NASA and private companies (e.g., LG, Samsung). In addition, Dr. Chen has also been recently selected to participate the US DOE funded 3-year $15M project on Lithium-ion Battery Recycling R&D Center due to his pioneer work in developing novel chemical engineering process for battery regeneration. Dr. Chen has received several prestigious awards and recognitions, such as the Outstanding Graduate Award (UCLA), Chinese Government Award for Outstanding Self-Financed PhD Students Studying Abroad, and MRS Graduate Student Award, the LG Chem Global Battery Innovation Contest (BIC) Award in 2017, NASA’s 2018 Early Career Faculty Award, and ACS Petroleum Research Foundation’s Doctoral New Investigator Award. He has been selected as a Scialog Fellow in Advanced Energy Storage by Research Corporation. He has also been recognized as a 2018 Emerging Investigator of materials for optical, magnetic and electronic devices in Journal of Materials Chemistry C.