【27th.July】Design and Engineering of Interfaces/Interphases for Stable Li Anodes
日期：2019-07-27
阅读：682
TOPIC：Design and Engineering of Interfaces/Interphases for Stable Li Anodes
SPEAKER：Prof. Dr. Donghai Wang, the Pennsylvania State University
TIME: Jul. 27th (Saturday) 10:00 a.m.
LOCATION: Room 528, Chemistry Building A （化学 A 楼 528 演讲厅）
INVITER: 宰建陶副教授
Abstract:
Li metal and Li-alloy based anode materials are the most promising anodes for next-generation Li batteries. The poor interfacial stability (unstable solid-electrolyte interphase (SEI)) in the battery has been the primary issue hindering their practical application. In this talk, I will present a strategy to reinforce the SEI with desired properties including good tolerance to the Li-based material volume change and efficient surface passivation against electrolyte penetration. The strategy works via introducing multiple functional components bonded to the Li-based material surface into the SEI. The SEI reinforced shows much better stability than the SEI reinforced by electrolyte additive strategy, which is the current state-of-art and commercially used solution to SEI stability issue.
Biography：
Dr. Wang is a professor at the Pennsylvania State University serving at Departments of Mechanical Engineering and Chemical Engineering, Intercollege Materials Science and Engineering Program.
He is an ardent researcher responsible for the execution of a multitude of grants, oversight of numerous doctoral students and postdoctoral fellows, and over 100 published peer-reviewed journal articles.
He has been invited to contribute to a number of books on nanotechnology and in 2018 Dr. Wang was identified as a Highly Cited Researcher according to Clarivate Analytic’s Essential Science Indicators.
He has served principal investigator roles for numerous DOE and NSF grants totaling many millions of dollars and in support of a multitude of private corporations including Ashland, Toyota, LG Chem and Enpower Energy Corporation.
He has previously served as scientist and researcher at Pacific Northwest National Laboratory and as a visiting student in the Advanced Materials Laboratory at the University of New Mexico/Sandia National Laboratory (Katrina evacuation).
Dr. Wang holds Outstanding Research from the Penn State Engineering Alumni Association, DTRA Young Investigators Grant, and MRS Graduate Student Gold awards from Materials Research Society.
Dr. Wang is a prolific inventor with over 20 applications filed in the fields of nanomaterials and related for application to batteries, solar and fuel cells, and environmental remediation.
Education
Dr. Wang holds bachelors and masters degrees in chemical engineering from Tsinghua University in P.R. of China and a Ph.D., in chemical engineering from Tulane University, USA.
Dr Wang specializes in the following areas:
Nanomaterials for clean energy technologies such as batteries, fuel cells, and environmental remediation.
Experimental research including nanomaterial synthesis, characterization and device fabrication and evaluation in devices such as batteries, fuel cells and reactors for clean energy application.
Development of new materials to improve performance of the clean energy techniques and guide development of advanced energy techniques.
Anode and cathode composition, thin-films, Li-Ion, Li-Metal, and related battery chemistry.
Ultrafast battery charging systems.
