Seminar & Colloquium
[세미나: 7월 14일(금), 오후 3시] Prof. Jinhyuk Lee, McGill University
Title
Opportunities and challenges of practical high-energy disordered rock-salt Li-ion cathodes
Speaker
Prof. Jinhyuk Lee, McGill University
Biography
Dr. Jinhyuk Lee is an Assistant Professor of Materials Engineering and a William Dawson
Scholar (Distinguished Professorship) at McGill University. He received his B.Sc. and Ph.D.
in Materials Science and Engineering from Seoul National University (2010) and MIT (2015).
Before joining McGill in 2020, Dr. Lee performed postdoctoral research at UC Berkeley
(2016–2017) and MIT (2017–2019). His research interest is discovering sustainable battery
materials based on experimental and theoretical materials research. He was a finalist of the
Science Award Electrochemistry 2019 by Volkswagen–BASF and is a 2020 recipient of the
NSERC Discovery Accelerator Supplement. He has made critical contributions to developing
high-energy cathode materials for Li-ion batteries, leading to his publications in top journals,
including Science (2014), Nature (2018), Nature Chemistry (2016), Joule (2022), and Adv.
Mater. (2023). He currently leads the JINfinity Energy Lab at McGill University and is a
Scientific Advisor of Neo Battery Materials Ltd. in Canada
| Date | Friday, July 14th, 2023
| Time | 15:00 ~
| Venue | 33동 125호 (WCU 다목적실)
[Abstract]
Ni/Co-free cathode materials with a high energy density can lead to sustainable, low-cost Liion batteries (LIBs) that satisfy the ever-increasing demand for electrical energy storage for
electric vehicles and large-scale renewable-energy storage. By delivering higher energy density
(>900 Wh/kg) than the layered oxides (~770 Wh/kg) with the affordability of LiFePO4 (a cheap
albeit low energy-density cathode, ~580 Wh/kg), disordered rock-salts (DRXs, e.g., Li2MnO2F,
Li2Mn1/2Ti1/2O2F, and Li1.68Mn1.60O3.7F0.3) made of cheaper metals (Mn, Ti, etc.) than Ni and
Co are one of only a handful of Co/Ni-free cathode materials with one of the lowest projected
cost per energy-stored ($/Wh), that can shift the current cathode market-share. However, there
are critical challenges for the materials to bring a practical impact on LIB development, such
as large voltage swings, limited capacity retention, and a lack of scalable material synthesis
methods. In this talk, by going through the literature and fundamentals of battery material
design, I will lay out the design principles and challenges of constructing practical Ni/Co-free
DRXs cathode materials for advanced LIBs
| Host | 강기석 교수(02-880-7088)