Electric-controlled pressure relief valve for enhanced safety in liquid-cooled lithium-ion battery packs

作     者：Yuhang Song Jidong Hou Nawei Lyu Xinyuan Luo Jingxuan Ma Shuwen Chen Peihao Wu Xin Jiang Yang Jin Yuhang Song;Jidong Hou;Nawei Lyu;Xinyuan Luo;Jingxuan Ma;Shuwen Chen;Peihao Wu;Xin Jiang;Yang Jin

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：0808[工学-电气工程] 080704[工学-流体机械及工程] 08[工学] 0807[工学-动力工程及工程热物理] 

基　　金：sponsored by the Science and Technology Program of State Grid Corporation of China(4000-202355090A-1-1ZN) 

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.