IEML

Hong Jihyun Professor

홍지현

About Lab.

Welcome to the Innovative Energy Materials Laboratory, where we are dedicated to developing cutting-edge material technologies for a more sustainable future through science. Our focus is on overcoming the performance limitations of lithium-ion batteries by decoding the mechanisms of energy storage reactions within the batteries. By combining traditional thermodynamic equilibrium analysis with an in-depth understanding of thermodynamic and kinetic changes in non-equilibrium reaction pathways, we design and implement high-performance energy storage materials and advanced rechargeable battery systems. Additionally, we aim to pioneer the development of next-generation electrode materials based on cost-effective metals like iron and manganese, as well as sodium-ion battery technologies, to contribute to the realization of an eco-friendly society.

  • “Metal-oxygen decoordination stabilizes anion redox in Li-rich oxides”, J. Hong†, W. E. Gent†, P. Xiao, K. Lim, D.-H. Seo, J. Wu, P. M. Csernica, C. J. Takacs, D. Nordlund, C.-J. Sun, K. H. Stone, W. Yang, D. Prendergast, G. Ceder*, W. C. Chueh*, M. F. Toney*, Nature Materials 2019, 3, 256-265, †Co-first authors.
  • “Fictitious phase separation in Li layered oxides driven by electro-autocatalysis”, J. Park†, H. Zhao†, S. Kang†, K. Lim, C.-C. Chen, Y.-S. Yu, R. Braatz, D. Shapiro, J. Hong*, M. Toney, M. Bazant*, W. Chueh* Nature Materials 2021, 20, 991-999, *Co-correspondence.
  • “Regulating dynamic electrochemical interface of LiNi0.5Mn1.5O4 spinel cathode for realizing simultaneous Mn and Ni redox in rechargeable lithium batteries”, G. Lim, D. Shin, K. H. Chae, M. K. Cho, C. Kim, S. S. Sohn, M. Lee, J. Hong*, Advanced Energy Materials 2022, 12, 2202049 [front cover article].
  • “Fast discharging mitigates cathode-electrolyte interface degradation of LiNi0.6Mn0.2Co0.2O2 in rechargeable lithium batteries”, S. Oh†, A.-R. Jeon†, G. Lim, M. K. Cho, K. H. Chae, S. S. Sohn, M. Lee, S.-K. Jung*, J. Hong*, Energy Storage Materials 2024, 65, 103169, *Co-correspondence.
  • “Thermodynamically controlled chemical regeneration of spent battery cathodes using recyclable electron donors under ambient conditions”, S. Ko†, J. Choi†, J. Hong*, C. Kim, U. Hwang, M. Kwon, G. Lim, S. S. Sohn, J. Jang, U. Lee, C. B. Park, M. Lee*, Energy & Environmental Science 2024, Advance Article, *Co-correspondence [back cover article].
  • “Sodium intercalation chemistry in graphite”, H. Kim†, J. Hong†, G. Yoon, H. Kim, K.-Y. Park, M.-S. Park, W.-S. Yoon, K. Kang*, Energy & Environmental Science 2015, 8, 10, 2963-2969, †Co-first authors.
  • “Weakly solvating solution enables chemical prelithiation of graphite–SiOx anodes for high-energy Li-ion batteries”, J. Choi, H. Jeong, J. Jang, A.-R. Jeon, I. Kang, M. Kwon, J. Hong*, M. Lee*, Journal of the American Chemical Society 2021, 143, 24, 9169-9176, *Co-correspondence.

About Prof.

Profile

  • 2024-Present Associate Professor, Graduate Institute of Ferrous & Energy Materials Technology, Pohang University of Science and Technology
  • 2018-2024 Senior & Principal Research Scientist, Korea Institute of Science and Technology
  • 2016-2018 Postdoctoral Research, Stanford University / SLAC National Accelerator Laboratory, USA

Education

  • 2015. Ph.D., Materials Science and Engineering, Seoul National University
  • 2011. M.S., Materials Science and Engineering, Korea Advanced Institute of Science and Technology
  • 2009. B.S., Materials Science and Engineering, Korea Advanced Institute of Science and Technology

Major Research Areas

  • Cathode/Anode Materials for Lithium Rechargeable Batteries
  • Next-generation Rechargeable Battery Materials and Systems
  • Cutting-edge Energy Materials Characterization
  • Ion Storage Reaction Thermodynamics and Dynamics
  • Cathode Synthesis and Recycling (Regeneration)

Lab Gallery

Lab9

Lab8

Lab7

Lab6

Lab5

Lab4

Lab3

Lab2

Lab1