벤팅 가스 환경을 고려한 파우치형 타입 차량용 이차 전지 모듈 구조간 열전이에 대한 연구 = A Study on Thermal Propagation in Vehicle Pouch-Type Secondary Battery Cell Module Structures Considering Venting Gas Environments

다국어 초록 (Multilingual Abstract)

Global industries are developing eco-friendly technologies to address climate change. Among these, secondary batteries are drawing strong attention as substitutes for fossil fuels. With tighter carbon emission regulations, electric vehicle (EV) adoption has grown rapidly, relying on advanced batteries for performance. High-power, high-energy-density cells(cylindrical, prismatic, and pouch types) are critical for EVs. Pouch cells, while lightweight and efficient, are highly susceptible to thermal runaway due to their low activation energy. Thermal runaway occurs when heat initiates internal chemical reactions, leading to rapid temperature rise and potential fires. This study investigates pouch-cell thermal runaway behavior using Fluent simulations validated with experimental results. Data from ARC (Accelerating Rate Calorimetry) tests were used to evaluate temperature-dependent heat generation and identify critical runaway conditions. These parameters were further applied to module-level propagation studies. The simulations excluded separator-induced short circuits, focusing on localized heating to develop predictive models for EV safety.