Dr. SI HYOUNG OHKorea
Energy Storage Research Center, Korea Institute of Science and Technology (KIST)
| 2003/01 to present | | Principal Research Scientist, Energy Storage Research Center, Korea Institute of Science and Technology |
| 2012/09 to present | | Professor, Division of Energy & Environment Technology, Korea University of Science and Technology |
| 2007 - 2011 | | PhD in Chemistry, University of Waterloo |
| 2002/03 - 2002/12 | | Research Scientist, Korea Institute of Energy Research |
Environmentally-benign, cost-effective, high-energy-density energy storage systems, Metal–air batteries, Lithium–sulfur batteries, Magnesium batteries, Aqueous batteries
Moisture-tolerant Mg metal electrodes for practical rechargeable Mg batteries
TBA TBA
Lithium-Ion Batteries/TBA
Rechargeable Mg batteries are attractive energy-storage systems owing to their low materials cost and high safety; however, their practical deployment is hindered by the severe moisture sensitivity of Mg metal anodes. Exposure to even trace amounts of water leads to the formation of a passivating ion-insulating layer that suppresses reversible Mg deposition and dissolution. In this work, we introduce a moisture-tolerant Mg electrode generated through a simple trimethyl phosphate treatment. The resulting sacrificial interphase, containing dimethyl magnesium species within a magnesium dimethyl phosphate matrix, effectively removes water from the electrolyte and maintains efficient Mg plating-stripping behavior under highly humid conditions. This strategy enables the fabrication of Mg-ion batteries in moist or even ambient environments, providing a scalable and cost-effective route toward the practical commercialization of rechargeable Mg batteries.