Prof. Dr. Ho Seok Park
Korean Academy of Science & Technology (KAST)
Prof. Dr. Ho Seok
About the Speaker
Prof. Dr. Ho Seok Park is a distinguished Professor of Chemical Engineering at Sungkyunkwan University (SKKU) and a prominent member of the Young Korean Academy of Science and Technology (Y-KAST). He earned his Ph.D. from KAIST and completed postdoctoral research at the Massachusetts Institute of Technology (MIT) before establishing himself as a global leader in electrochemical energy storage. His research focuses on the synthesis and application of 2D nanomaterials, such as graphene and MXenes, to develop high-performance supercapacitors and next-generation battery systems. Recognized as a Highly Cited Researcher (HCR) by Clarivate, Dr. Park has authored hundreds of influential papers and serves as a Director for the Center for 2D Redox Energy Storage, significantly advancing the fields of nanotechnology and sustainable energy materials.
Abstract
Two-Dimensional Organic Frameworks for Electrolyte and Interfacial Engineering in Lithium Metal Batteries
The practical realization of lithium metal batteries is fundamentally constrained by uncontrolled dendrite growth, parasitic side reactions, and mechanically fragile solid electrolyte interphases — all rooted in poorly regulated ion transport and interfacial chemistry. Two-dimensional (2D) organic-based materials, owing to their structural programmability and tunable functional sites, offer a compelling platform to simultaneously address these challenges across both liquid and solid electrolyte systems.
In the first strategy, I will introduce molecularly engineered 2D polymeric metal phthalocyanines (CoTP) conformally coated on carbon surface, which can direct localised TFSI⁻ anion flux toward the electrode surface for uniform LiF-rich SEI formation, as well as facilitate interfacial Li⁺ transfer through pseudo-crown ether-type TEG linkers. Then, I will address 2D dual-Lewis-base covalent organic framework (N/O-COF) bearing triazine and carbonyl groups integrated into PEO-based solid polymer electrolytes. The synergistic N/O coordination environment simultaneously enables directional Li⁺ migration through ordered nanochannels and promotes LiF-rich SEI formation via TFSI⁻ decomposition. Together, these works establish 2D organic frameworks as a powerful and generalisable design platform for governing both bulk ionic environments and electrode–electrolyte interfacial chemistry, offering a fundamental pathway toward safe, high-energy, and durable lithium metal batteries.