Hoseong Lee
고려대학교 기계공학과 · 공학
Hoseong Lee 교수의 연구실은 전기자동차의 핵심 기술인 배터리 및 모터의 열관리 시스템에 중점을 두고 있으며, 고성능·고신뢰성 열관리 기술의 개발을 목표로 합니다. 특히 고속 충전 조건과 극한 환경에서의 열 제어 성능을 향상시키기 위해 PCM, 미니채널, 메탈 폼, U자형 냉각재 배치 등 혁신적인 냉각 구조와 하이브리드 냉각 기법을 연구하고 있습니다. 전기화학-열-역학 연성 모델링과 실험 기반 검증을 통해 정확한 예측과 최적 설계를 실현하고 있습니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
The escalating demand for electric vehicles and lithium‐ion batteries underscores the critical need for diverse battery thermal management systems (BTMSs) to ensure optimal battery performance. Despite this, a comprehensive comparative analysis remains absent. This study seeks to assess and compare the thermal and hydraulic performances of three prominent BTMSs: fin cooling, intercell cooling, and PCM cooling. Simulation models were meticulously developed and experimentally validated, with each
This study developed an innovative immersion battery thermal management system (BTMS) that incorporates mini-channels and metal foam to address the limitations of conventional indirect liquid-cooled BTMSs under extreme conditions. The proposed system leveraged the superior thermal conductivity of the metal foam and the structural advantages of mini-channels to enhance battery cooling and preheating performance. The results showed that under fast-charging conditions, the maximum battery temperatu
• Study investigated cooling performance of EMB motor under extreme conditions. • Simulations designed to analyze heat transfer and evaluate various cooling methods. • SAT type phase-change material demonstrated the best cooling performance. • Findings suggest Hybrid cooling method provides most effective cooling performance. • Hybrid cooling performance remained consistently reliable under many scenarios. A challenge currently faced by automotive brake systems industry is the development of ele
In-wheel motors (IWMs) are considered to replace centralized motors in electric vehicles due to a high efficiency. However, heat dissipation is a significant challenge in IWMs because of their limited space. In this study, a U-shaped water jacket with a guide vane design is newly proposed to improve the heat dissipation performance of IWMs. An IWM simulation model is developed and validated based on experimental data. Using six independent design variables, the multi-objective optimization is pe
Most battery thermal models have been validated at low C‐rates, often overlooking the influence of entropic heat (EH) owing to its relatively small magnitude. However, at high C‐rates, the exclusion of EH can lead to significant temperature deviations. In this context, this study investigated the influence of EH on battery temperature under various operating conditions. Experiments were conducted to determine the entropic coefficient (EC), and an electrochemical–thermal‐coupled battery model was
