Abstract
This paper reports a modeling methodology to predict the effects of operating conditions on the thermal behavior of a lithium-ion battery (LIB) module. The potential and current density distributions on the electrodes of an LIB cell are predicted as a function of discharge time based on the principle of charge conservation. By using the modeling results of the potential and current density distributions of the LIB cell, the non-uniform distribution of the heat generation rate in a single LIB cell within the module is calculated. Based on the heat generation rate in the single LIB cell determined as a function of the position on the electrode and time, a three-dimensional thermal modeling of an LIB module is performed to calculate the three-dimensional velocity, pressure, and temperature distributions within the LIB module as a function of time at various operating conditions. Thermal modeling of an LIB module is validated by the comparison between the experimental measurements and the modeling results. The effect of the cooling condition of the LIB module on the temperature rise of the LIB cells within the module and the uniformity of the distribution of the cell temperatures are analyzed quantitatively based on the modeling results.
Highlights
The lithium-ion battery (LIB) is a preferred power source for hybrid electric vehicle (HEV)applications, because it has a relatively higher energy density, longer cycle life, and lower self-discharge rate as compared to other cell chemistries
Thermal modeling of an LIB module is validated by the comparison between the experimental measurements and modeling results
Based on the heat generation rate within the single LIB cell determined as a function of the position on the electrode and time, a three-dimensional thermal modeling of an LIB module is performed to calculate the three-dimensional velocity, pressure, and temperature distributions within the LIB module as a function of time at various operating conditions
Summary
The lithium-ion battery (LIB) is a preferred power source for hybrid electric vehicle (HEV). Kwon et al [11] presented a different approach from the rigorous porous electrode model [6,7,8,9,10,11,12,13,14] to predict the discharge behavior of an LIB cell They developed a two-dimensional model to calculate the potential and current density distribution on the electrodes of an LIB cell during constant current discharge by solving the equations derived from the principle of charge conservation. Kim et al [12,13,14] carried out two-dimensional thermal modeling to predict the thermal behaviors of an LIB cell during discharge and charge on the basis of the potential and current density distributions obtained by following the same procedure of Kwon et al [11] They resolved two-dimensionally the heat generation rate as a function of position on the electrode of battery cell and state of charge. Thermal modeling of an LIB module is validated by the comparison between the experimental measurements and modeling results
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
