CBE Colloquia - Electrode and Electrolyte Design for High Performance Aqueous Zinc-ion Batteries
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The rise of intermittent renewable sources, such as solar and wind, has spurred growing interest in electrical energy storage. Integrating grid-scale energy storage with renewable sources offers significant advantages in energy regulation and grid security. Zinc-based aqueous batteries (ZABs) have emerged as a promising energy storage technology for low-cost and large-scale applications due to the intrinsic safety of aqueous electrolytes and the highly desirable properties of the zinc metal anode, including its high theoretical capacity (820 mA h g−1 and 5855 mA h cm−3), low redox potential, and abundant resources.
However, the practical application of ZABs has faced challenges, including cathode degradation, uncontrollable zinc dendrite growth, and parasitic side reactions between the electrode and electrolyte, particularly under harsh conditions. In this presentation, I will discuss some of our recent advancements in enhancing the electrochemical performance of aqueous zinc ion batteries through electrode design and electrolyte optimization.
Prof. Zaiping Guo is Chair Professor in the School of Materials Science and Engineering, City University of Hong Kong. Prior to joining CityU, she was an Australian Laureate Fellow at School of Chemical Engineering, The University of Adelaide. She received her PhD from University of Wollongong in 2003 and was elected to Fellow of the Australian Academy of Science and Fellow of the Australian Academy of Techno-logical Sciences and Engineering in 2023. Her research focuses on the design and application of electrode materials and electrolyte for energy storage and conversion, including rechargeable batteries, hydrogen storage, and fuel cells. Her research achievements have been recognized through numerous awards, includ-ing an ARC Queen Elizabeth II Fellowship in 2010, an ARC Future Professorial Fellowship in 2015, an ARC Laureate Fellowship (2021), and the Clarivate Analytics Highly Cited Researcher Award from 2018-2025. Furthermore, in 2020, she was honored with the NSW Premier's Prizes for Science & Engineering, specifically for her outstanding achievements in Engineering or Information and Communications Technology.