Characterizing Thermal Runaway of Lithium-ion Cells in a Battery System Using Finite Element Analysis Approach

Investigation of Energy Consumption and Characteristics of a Battery Electric Vehicle

“…Chemical changes occur when there is an imbalance in the battery during charging or discharging. The author in [24] observed the same behavior.…”

“…The maximum temperature was 30.4°C (86.7°F). According to [24] this heat increase during charge and discharge is due to battery internal resistance. The thirty-degree Celsius/ max temperature is well below the eighty-degree Celsius temperature where the battery first starts to degrade due to overheating.…”

“…The NMC lost sixty percent of its energy density, NCA composition lost forty percent energy density, and the LFP lost twenty percent. The paper goes on to explain that while NCA batteries performed well compared to the other two chemistries at a temperature of -18°C a heating system would be required to maintain the performance of the batteries[23].Characterizing Thermal Runaway of Lithium-ion Cells in a Battery System Using Finite Element Analysis ApproachYeow et al tested a mini battery pack using three pouch style seventy amp hour (Ah) NMC cells cooled on a liquid cooling plate[24]. It was tested to see how a thermal runaway occurs when a battery pack is overheated.…”

A Review on the Thermal Hazards of the Lithium-Ion Battery and the Corresponding Countermeasures

“…On the other hand, numerical simulation methods were also applied to investigate the failure propagation behaviors of battery packs [136][137][138][139][140][141][142][143][144]. Feng et al [136] established a 3D thermal runaway propagation model for a large format LIB pack based on the energy balance equation.…”

Time Sequence Map for Interpreting the Thermal Runaway Mechanism of Lithium-Ion Batteries With LiNixCoyMnzO2 Cathode

“…High precision prediction of the TR propagation process in system level requires accurate setting of the boundary conditions of heat transfer and a TR model with adequate accuracy. Sometimes the chemical kinetics can be simplified by lookup tables in the propagation simulation (Yeow and Teng, 2013;Chen et al, 2015). Those kinds of model-based TR propagation simulation help optimize the safety design of a battery pack, significantly reducing the TR hazard in the system level, and enhancing the efficiency of correlated research and development.…”