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Designing organic electrode materials for future battery applications

Prof. Ji Eon Kwon
Korea Institute of Science and Technology, South Korea
Friday, 09 June 2023 17:00

Place: IMDEA Nanociencia conference room.


Redox-active organic materials (ROMs) are recently drawing much attention as a promising alternative to conventional transition-metal oxide electrode materials due to their advantages, including abundance, sustainability, bio-compatibility, low cost, and easy tunability.[1] Furthermore, the flexible nature of organic materials due to loosely packed intermolecular structures is expected to allow fast diffusion for charge-carrying ions, which is essential for the high-rate performance of electrode materials. However, in practice, most ROMs still suffer from slow rate capability with low capacity utilization due to their electrically insulating nature. They are also plagued by rapid capacity fading due to high solubility in the liquid electrolyte, compelling one to prepare polymers via complicated synthesis and/or to fabricate composites with expensive nanocarbons. In this talk, we introduce our novel molecular design strategies to improve the energy density, cycle stability, and rate performance of ROMs.[2-10]

[1] P. Poizot et al., Chem. Rev. 2020, 120, 6490.
[2] J. E. Kwon et al. J. Mater. Chem. A, 2018, 6, 3134.
[3] S. Lee et al., J. Mater. Chem. A 2019, 7, 11438.
[4] D. J. Min et al. ChemSusChem 2019, 12, 503.
[5] G. Kwon et al. Chem (Cell Press) 2019, 5, 2642.
[6] D. J. Min et al. ChemSusChem 2020, 13, 2302-2311
[7] K. Lee et al. Energy Environ. Sci. 2020, 13, 4142.
[8] S. Lee et al. Adv. Energy Mater., 2020, 10, 2001635.
[9] Hyojin Kye et al. Adv. Energy Sustain. Res., 2022, 3, 2200030.
[10] Hyunji Park et al. Batter. Supercaps 2023, 6, e202200497.