Abstract:

Aqueous Zinc batteries (AZBs) have garnered significant attention as candidates for large-scale energy storage. While performance metrics have largely improved, AZBs still face challenges in practical applications, warranting deep analysis and study. This presentation explores the evolution of AZBs in recent years and shifts in research trends, identifying separator studies as a potential missing puzzle piece. Our findings reveal that separator thickness profoundly impacts volumetric and specific energy densities and significantly influences battery lifespan. We propose the thickness ratio (Zn foil/separator) as a critical factor affecting lifespan, providing a rational basis for future studies. Additionally, we intensively investigated conversion-based cathodes,particularly those utilizing halogen materials such as iodine (I), bromine (Br), and chlorine (Cl). These materials show significant promise for high-power energy storage applications. This presentation will highlight recent advancements in the development of these cathodes, showcasing innovative approaches to enhance their electrochemical performance. These advancements demonstrate the potential of halogen conversion-type batteries to achieve high energy densities and long cycle lives through multi-electron transfer processes. Finally, we will share our efforts on AZBs towards practical applications, addressing safety challenges in specific scenarios.

Biography:

Chunyi ZHI obtained a Ph.D. in condensed matter physics from the Institute of Physics, Chinese Academy of Sciences. After two years as a postdoctoral fellow at the National Institute for Materials Science (NIMS) in Japan, he was promoted to ICYS researcher, researcher, and senior researcher at NIMS. Dr. Zhi is now a Chair Professor at MSE, City University of Hong Kong. Dr. Zhi has extensive experience in aqueous electrolyte, solid-state, and zinc ion batteries. He has published over 500 papers with an h-index of 145 and citations of >70000 (Google). He has been granted more than 100 patents. Dr. Zhi is a recipient of the Outstanding Research Award and President Award of CityU, the NML Researcher Award, and the Beijing Science and Technology Award (first class). He is a Clarivate Analytics Global Highly Cited Researcher (2019-2024, Materials Science, 2024, Environment and Ecology), RSC fellow, Member of The Hong Kong Young Academy of Sciences, and RGC Senior Research Fellow.

ALL INTERESTED ARE WELCOME

For further information, please contact Prof. Mingxin Huang