No thermal runaway propagation optimization design of battery arrangement for cell-to-chassis technology

Advances and challenges in thermal runaway modeling of lithium-ion batteries

“…TRP modeling approaches predominantly include the thermal resistance network model (TRNM) 98 , 99 , 100 and the three-dimensional (3D) numerical model. 79 , 101 , 102 , 103 , 104 , 105 , 106 , 107 , 108 , 109 , 110 , 111 , 112 , 113 , 114 , 115 In the TRNM, each cell is represented as an individual node with mass, heat capacity, and a heat source, connected by specific thermal resistances. The modeling procedure of the TRNM generally includes the development of a heat generation model for a single cell node and the subsequent combination of nodes based on energy balance (see supplemental information for details).…”

Safety of lithium battery materials chemistry

“…Finally, TR modelling can accelerate battery safety design by reducing "trial-and-error" costs. However, although TR modelling has been widely applied in battery module/pack design, 46,47 model-based optimization of battery materials chemistry has rarely been reported. Several challenges still hinder the utilization of TR models in battery materials chemistry design.…”

Modeling and Simulation of a Gas-Exhaust Design for Battery Thermal Runaway Propagation in a LiFePO4 Module

“…The main hazards of TR are high temperature [10,11] and venting combustion gas [12][13][14]. In battery packs, the TR of one cell will induce thermal runaway propagation (TRP) [15][16][17], which seriously threatens the life safety of the passenger. In electric vehicle safety accidents, heat abuse is the main cause of the TRP [15].…”