This paper addresses one of the most significant problems associated with ambient-temperature batteries in electric vehicles (EVs): maintaining optimum, uniform temperatures within a battery pack. Issues such as temperature dependence of capacity, effects of temperature extremes, and temperature variation within a pack are discussed. Calculations based on a battery/vehicle model are then given that demonstrate the effects of temperature on driving range. Battery thermal management (TM) is next discussed and test results comparing circulating-air and circulating-liquid TM systems with non-managed systems in EVs are presented. These data show the importance of incorporating a TM system into an EV to achieve optimal battery and vehicle performance and battery life.


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    Title :

    Thermal Characteristics of Electric Vehicle Batteries


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Passenger Car Conference & Exposition ; 1991



    Publication date :

    1991-09-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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