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Electrolytes for high-voltage Li batteries

Research Seminar Series

20230315Prof Xiulin FanEvent banner
  • Date

    15 Mar 2023

  • Organiser

    Department of Industrial and Systems Engineering, PolyU; Research Institute for Advanced Manufacturing (RIAM)

  • Time

    10:00 - 11:30

  • Venue

    Online via Zoom  

Speaker

Prof. Xiulin Fan

Remarks

Meeting Link will be sent to successful registrants

20230315Prof Xiulin FanPoster

Summary

LIBs have flourished for 30 years with the energy density tripled since the 1990s thanks to the coupling of layered cathodes, graphite, and carbonate electrolytes. To further promote the energy density of LIBs, the most promising strategies are to enhance the cut-off voltage of the prevailing cathodes or explore novel high-capacity and high-voltage cathode materials, and also replace graphite anode with Si/Si-C or Li metal for anodes. However, the commercial ethylene carbonate (EC)-based electrolytes with relatively low anodic stability of ~ 4.3 V vs. Li+/Li cannot sustain high-voltage cathodes. Bottleneck restricting the electrochemical performance in Li batteries has been veered to the new electrolyte compositions catered for aggressive next-generation cathodes and Si/Si-C or Li metal anodes, since the oxidation-resistance of the electrolytes and the in situ formed cathode electrolyte interphase (CEI) layers at the high-voltage cathodes and solid electrolyte interphase (SEI) layers on anodes critically control the electrochemical performance of these high-voltage Li batteries. In this seminar, I will present a comprehensive and in-depth overview of the recent advances, fundamental mechanisms, scientific challenges, and design strategies for the novel high-voltage electrolyte systems, especially focused on stability issues of the electrolytes, the compatibility and interactions between the electrolytes and the electrodes, and reaction mechanisms.

Keynote Speaker

Prof. Xiulin Fan

Prof. Xiulin Fan

State Key Laboratory of Silicon Materials 
School of Materials Science and Engineering 
Zhejiang University, China.

Dr Fan received his bachelor’s and PhD degrees from Zhejiang University in 2007 and 2012 respectively. From 2013 to 2017, he worked as a Postdoctoral Research Associate at the University of Maryland College Park (UMD) and was then promoted to Assistant Research Scientist in 2017 at UMD. Since August 2019, Dr Xiulin Fan has been a professor at the School of Materials Science and Engineering, Zhejiang University. His research interest is electrolytes and interphases in high-energy batteries. He has published more than 150 papers, including Nature Nanotech., Nature Energy, Chem, Joule, Nature Commun., Science Adv., Adv. Mater., J. Am. Chem. Soc., Angew. Chem. Int. Ed. etc. His work has been cited more than 22000 times, with an H-index of 80. He has been recognized as a highly cited researcher by Clarivate since 2020.

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