Electric-controlled pressure relief valve for enhanced safety in liquid-cooled lithium-ion battery packs
作者机构:Research Center of Grid Energy Storage and Battery ApplicationSchool of Electrical and Information EngineeringZhengzhou UniversityZhengzhou 450001HenanChina
出 版 物:《Journal of Energy Chemistry》 (能源化学(英文版))
年 卷 期:2024年第90卷第3期
页 面:98-109,I0004页
核心收录:
学科分类:0820[工学-石油与天然气工程] 0808[工学-电气工程] 080704[工学-流体机械及工程] 0817[工学-化学工程与技术] 08[工学] 0807[工学-动力工程及工程热物理] 0703[理学-化学]
主 题:Pressure relief valve Liquid-cooled battery pack Explosion Flacs
摘 要:The liquid-cooled battery energy sto rage system(LCBESS) has gained significant attention due to its superior thermal management ***,liquid-cooled battery pack(LCBP) usually has a high sealing level above IP65,which can trap flammable and explosive gases from battery thermal runaway and cause *** poses serious safety risks and challenges for *** this study,we tested overcharged battery inside a commercial LCBP and found that the conventionally mechanical pressure relief valve(PRV) on the LCBP had a delayed response and low-pressure relief efficiency.A realistic 20-foot model of an energy storage cabin was constructed using the Flacs finite element simulation *** studies were conducted to evaluate the pressure relief efficiency and the influence on neighboring battery packs in case of internal explosions,considering different sizes and installation positions of the ***,a newly developed electric-controlled PRV integrated with battery fault detection is introduced,capable of starting within 50 ms of the battery safety valve ***,the PRV was integrated with the battery management system and changed the battery charging and discharging strategy after the PRV was *** tests confirmed the efficacy of this method in preventing *** paper addresses the safety concerns associated with LCBPs and proposes an effective solution for explosion relief.