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Modeling and Simulation of Thermal Runaway in Cylindrical 18650 Lithium-Ion Batteries
Published in 2016
In this work the coupled electrochemical-thermal model for a lithium-ion battery (LIB) based on porous electrode theory has been extended with contributions coming from exothermic side reactions based on an Arrhenius law to model abuse mechanisms, which could lead to a thermal runaway. These extensions have been modeled with a constant fuel model and for specified current profiles and exterior temperature profiles to simulate cell cycling under adiabatic conditions or an oven test respectively. The model has been implemented into COMSOL Multiphysics® software using the Battery and Fuel Cells Module functionalities coupled to the Heat Transfer in Solids interface.
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