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Eungje Lee

Materials Scientist


Dr. Eungje Lee is a materials scientist in Argonne’s Chemical Sciences and Engineering division. He has over 15 years of experience in the development of materials for electrochemical energy storage and conversion systems.  

As an expert in the process-structure-property relationship in energy materials, Lee’s research interests include the design and synthesis of new materials for lithium-ion batteries and next-generation technologies such as sodium-ion and solid-state batteries. He also has extensive experience in the use of advanced characterizations such as synchrotron X-ray techniques to elucidate the multi-scale mechanisms that govern electrochemical performance and degradation. Prior to joining Argonne, Lee worked for LG Chem.


  • Ph.D., Materials Sciences and Engineering, University of Texas at Austin 
  • M.S. and B.S., Materials Sciences and Engineering, Seoul National University

Select Publications 

  • 3D ion-conducting, scalable, and mechanically reinforced ceramic film for high voltage solid-state batteries, Advan. Funct. Mater., 31, 2002008 (2021).
  • New High-Performance Pb-Based Nanocomposite Anode Enabled by Wide-Range Pb Redox and Zintl Phase Transition, Advan. Funct. Mater., 31, 2005362 (2021).
  • Lithiated spinel LiCo1-xAlxO2 as a stable zero-strain cathode, ACS Appl. Energy Mater., 2, 6170 (2019).
  • Development of manganese-rich cathodes as alternatives to nickel-rich NMCs, J. Power Sources, 434, 226706 (2019). 
  • New insights into the performance degradation of Fe-based layered oxides in sodium-ion batteries: instability of Fe3+/Fe4+ redox in α-NaFeO2, Chem. Mater., 27, 6755 (2015).
  • Aluminum and gallium substitution into 0.5Li2MnO30.5Li(Ni0.375Mn0.375Co0.25)O2 layered composite and the voltage fade effect, J. Electrochem. Soc., 162, A322 (2015).
  • Layered P2/O3 intergrowth cathode: toward high power Na-ion batteries, Advan. Energy Mater., 4, 1400458 (2014).

Select Patents 

  • Cobalt-stabilized lithium metal oxide electrodes for lithium batteries, U.S. Patent 10,790,508.
  • Layered-spinel electrodes for lithium batteries, U.S. Patent 10,573,889.
  • Thermally conductive lithium ion electrodes and batteries, U.S. Patent 8,906,542.
  • Sodium chalcogenide electrodes for sodium batteries, U.S. Patent 8,906,542.