报告题目：Cathode Materials for Aqueous Zn-Ion Batteries

报告人：Kevin Huang 教授

报告时间：2019年6月5日上午9：00-10：30

报告地点：华南理工大学大学城校区B5-102会议室

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报告摘要：

Aqueous Zn-ion batteries (a-ZIBs) represent an emerging class of electrochemical cells suited for large-scale stationary energy storage with important applications in renewable energy and grid stability. Compared to the benchmark Li-ion batteries, they are intrinsically safe, cost-effective and capable of performing fast-rate charging/discharging. However, the current a-ZIB development is limited by the performance of cathode where Zn-(de)intercalation takes place. Among all materials studied so far, layered vanadium oxides stand out to be the most favorable and thus most studied cathode materials for Zn-ion intercalation. In this presentation, the presenter will start with a brief history of ZIBs and then moves to a specific material – Ca- and H₂O- co-stabilized V₈O₂₀ bilayered structure – developed in his lab with detailed information on its phase, structure, morphology, performance and DFT calculations. The roles of Ca²⁺ and solvent water on the observed excellent cycle stability and rate capacity are also discussed.

报告人简介:

 Prof. Kevin Huang is currently a SmartState endowed chair and director of solid oxide fuel cell center at University of South Carolina. His research interest covers rechargeable batteries, reversible fuel cells, gas separation membranes and multiscale computational modeling. He has published 195+ peer-reviewed journal papers, 2 books, 2 book chapters and been granted 15 US patents. He is also the recipient of numerous university awards, including 2018 Breakthrough Leadership in Research Award, 2017 Educational Foundation Award for Research in Science, Mathematics and Engineering, 2015 College of Engineering and Computing Research Achievement Award, and 2014 University of South Carolina Breakthrough Stars. He currently teaches Advanced Thermodynamics and Energy Storage for graduates and Mechanical Engineering Laboratory II for undergraduates.