Jong‐Won Lee
경희대학교 공과대학 화학공학과 · 공학
이 교수의 연구실은 에너지 저장 및 전환 기술 분야에서 핵심적인 연구를 수행하고 있습니다. 리튬이온이온 배터리의 고속 충전 및 수명 향상을 위한 그래프트 양극의 표면 개질 기술과 고체 전해질 기반의 고안정성 배터리 시스템 개발에 주력하고 있으며, 특히 고체산화물 연료전지 및 리튬-산소 배터리의 효율적이고 지속 가능한 전극 설계에도 기여하고 있습니다. 또한 생물학적 방법을 활용한 녹색 용매 생산 기술 개발을 통해 에너지와 화학 공정의 탄소 발자국을 줄이는 데 기여하고 있습니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
The realisation of fast-charging lithium-ion batteries with long cycle lifetimes is hindered by the uncontrollable plating of metallic Li on the graphite anode during high-rate charging. Here we report that surface engineering of graphite with a cooperative biphasic MoO<sub>x</sub>-MoP<sub>x</sub> promoter improves the charging rate and suppresses Li plating without compromising energy density. We design and synthesise MoO<sub>x</sub>-MoP<sub>x</sub>/graphite via controllable and scalable surfac
Abstract There are increasing demands for large‐scale energy storage technologies for efficient utilization of clean and sustainable energy sources. Solid‐state lithium batteries (SSLBs) based on non‐ or less‐flammable solid electrolytes (SEs) are attracting great attention, owing to their enhanced safety in comparison to conventional Li‐ion batteries. Moreover, SSLBs can provide great benefits in terms of battery performance (power and energy densities) and cost when constructed using a bipolar
Carbon-free cobalt oxide cathodes for lithium-oxygen batteries are fabricated via an electrodeposition-conversion process. The Co3O4-only cathodes show a remarkably reduced voltage gap (by ca. 550 mV compared to the carbon-only cathode) as well as excellent long-term cyclability.
A quasi-solid-state lithium-oxygen battery constructed using a gel polymer electrolyte with an ionic liquid is proposed. The battery architecture incorporates a design feature that can be easily scaled up in size for use in large systems. The feasibility study demonstrates that the battery operates successfully for repeated discharge-charge cycles.
We have successfully established the biosynthesis pathway of lactate esters from fermentable sugars and demonstrated for the first time the direct fermentative production of lactate esters from glucose using an <i>E. coli</i> modular cell. This study defines a cornerstone for the microbial production of lactate esters as green solvents from renewable resources with novel industrial applications.
In this study, a new method is developed for the fabrication of nanofibrous LaCoO<sub>3</sub> (LCO) perovskites as cathodes (oxygen electrodes) for solid oxide fuel cells (SOFCs).
