Modeling for Temperature Rise of Lithium-Ion Battery Cell in Energy Storage Under Overcurrent Incidence From Lightning

Inhalt:
Electrochemical energy storage system will encounter overcurrent incidence mostly originated from situations where lightning strikes its electrically connected systems (e.g. wind-photovoltaic-battery hybrid system), and overcurrent is expected to flow into battery with reduced intensity. Battery consists of chemical substances and store charges, being extremely sensitive to overcurrent. Moreover, the failure or improper operation of surge protection devices also brings concerns to battery safety and even triggers fires. A key point is to learn how the temperature of battery responds to overcurrent and it has not made its way into literature as far as the authors are aware. Therefore, a three-dimensional finite element model with electrothermal coupling simulation is established based on the cylindrical lithium-ion battery cell with winding structure. We study temperature response of battery cell to impulse overcurrent with temperature-dependent impedance. This work contributes to analyzing temperature rise caused by lightning overcurrent on lithium-ion batteries.