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The Energy & Polymer Chemistry (EPOCH; 새로운 시대) Laboratory at Sungkyunkwan University, led by Professor Soochan Kim, aims to elucidate the fundamental working principles of next-generation energy storage systems and to develop innovative battery materials based on this understanding. Our research focuses on systematically investigating the diverse physical, chemical, and electrochemical phenomena occurring in advanced battery systems. In parallel, we design and tailor functional polymer materials to expand their applications in next-generation batteries. Currently, our primary research areas include conversion/alloying-type electrode materials (such as sulfur, silicon, and fluoride systems), all-solid-state batteries, anode-free metal batteries, and Al-Air batteries
Solid-state batteries
To achieve high-energy-density all-solid-state batteries, it is crucial to have a fundamental understanding of solid-state electrolytes and to make thin solid-state electrolytes. Our research is concentrated on investigating how to make stable interfaces between battery components and all-solid electrolytes and discovering practical methods to fabricate thin electrolyte separators using functional polymers.
Lithium-sulfur batteries
Li-S batteries are promising next-generation energy storage systems owing to their high theoretical energy density and cost-effectiveness, yet their practical application remains limited by complex interfacial reactions and polysulfide shuttling. Our team is developing functional polymer-based strategies to rationally design sulfur cathodes, binders, and separators, enabling controlled polysulfide chemistry, robust electrode structures, and stable interfaces toward practical Li-S batteries.
anode-free batteries
The anode-free system is a next-generation high-energy-density battery system that has no anode materials and only a thin current collector. However, the unstable interfaces and low coulombic efficiency during the initial formation of anodes hinder the practical application of this system. We are developing new artificial interfaces using functional polymers to ensure a stable interface and maximize anode utilization.
aluminum-air batteries
Aluminum–air batteries are promising next-generation energy storage systems with high theoretical energy density, inherent safety, and cost-effectiveness, offering significant potential for emerging applications such as urban air mobility (UAM) and energy storage systems (ESS). Our team is developing advanced polymer materials for Al anodes and polymer-based electrolytes to control interfacial reactions, suppress Al corrosion, and improve the efficiency and durability of aluminum–air batteries.
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