Modelling for the mitigation of lithium ion battery thermal runaway propagation by using phase change material or liquid immersion cooling

• DOI: 10.1016/j.csite.2023.103749
• Publication Date: 2023-11-14T19:19:56Z
• Authors: Xinyu Liu; Zhifu Zhou; Wei-Tao Wu; Lei Wei; Weixiong Wu; Yang Li; Linsong Gao; Yubai Li; Yongchen Song
• Keywords: Thermal Runaway; Immersion; Battery pack; Phase-change material

In this study, a three-dimensional (3D) thermal runaway (TR) model with conjugate heat transfer submodel is adopted. TR behaviors for battery pack 12 prismatic lithium-ion batteries (LIBs) are then simulated. Three safety measures of protection from internal shorting in Cell 1 to level configuration compared and evaluated. Paraffin phase change material (PPCM) firstly proposed delay the propagation between LIBs solid-liquid as mechanism. Different thicknesses PPCMs verify mitigation performance PPCM under abuse condition. The time 2 delayed be 64 s, 266 s 414 corresponding thickness 1.8 mm, 3.6 mm 5.4 mm. As simulation results shows, can further 798 by strategy combing insulation. addition, work proposes novel based on immersion cooling pool boiling fluorinated liquid We observe that average temperature - tends within 34 °C immersive condition, which indicates possibility prevent TR.