Heat generation from Lithium-ion batteries depends on its charge/discharge rates, SoC and temperature and hence varies considerably with vehicle driving conditions, DoD, ambient operating conditions and charging rate. To design and optimize the performance of a battery cooling system, it is desirable to study the steady and transient response of the system under variable operating and heat load conditions. In the present study, 3D CFD analysis has been performed to evaluate the performance of a prismatic liquid cooled Lithium Iron Phosphate battery pack under variable flow rate, inlet temperature and heat load conditions corresponding to different SoC and charge/discharge rates. An initial study is performed to validate the CFD model with experimental data and then the model is used to optimize the shape and size of the cold plate micro channels for improved heat transfer and reduced pressure drop. The varying heat load with SoC and charge/discharge rates is calculated from experimental data of LiFePO4 cells available from literature and is then applied in the CFD model to evaluate the steady and transient response of the system for different coolant temperature and flow rate and determine the effectiveness of the system. This evaluation of battery temperature and effectiveness as a function of coolant parameters will help to determine the desired coolant flow rate and temperature for different operating and battery conditions. An optimized cold plate with operation at desired coolant conditions will have a profound effect on energy efficiency, battery life, safety, and reliability.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    CFD Analysis of a Prismatic Liquid Cooled Battery Pack to Optimize and Evaluate Pack Performance Under Variable Operating and Coolant Conditions


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Thermal Management Systems Conference 2021 ; 2021



    Publication date :

    2021-09-15




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    COOLANT MANIFOLD FOR BATTERY PACK

    DAO DUYBAO / GRACE DUSTIN / PAUL DEREK | European Patent Office | 2024

    Free access

    Method for operating battery pack and battery pack

    KLUENDER MARIO / SCHNEIDER JOERG / SCHINDLER LENA et al. | European Patent Office | 2021

    Free access

    Prismatic accumulator cell and accumulator pack

    SCHLEMMER GUENTER / KLONCZYNSKI ALEXANDER / KEGEL TIMO | European Patent Office | 2018

    Free access

    Coolant direct-contact cooling-type battery pack

    KIM TAE-GEUN / PARK JIN-WOO | European Patent Office | 2020

    Free access

    Quick change mechanism for liquid-cooled battery pack

    HONG JIAN / QIN LIWEI / LIU SHULONG et al. | European Patent Office | 2021

    Free access