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 ciruclating-air and circulating-liquid TM systems with non-managed systems in EVs are presented. These data show the importance of incorporating ATM system into an EV to achieve optimal battery and vehicle performance and battery life.
Thermal characteristics of electric vehicle batteries
Thermische Kennwerte von Batterien für Elektrofahrzeuge
SAE-Papers ; 1-11
1991
11 Seiten, 10 Bilder, 5 Tabellen, 14 Quellen
Aufsatz (Konferenz)
Englisch
Thermal Characteristics of Electric Vehicle Batteries
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