新能源汽车电池热管理系统优化研究

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中图分类号：U461 DOI：10.20042/j.cnki.1009-4903.2025.01.002

Optimization ResearchonThermal ManagementSystemforNew Energy Vehicle Batteries

Abstract：Aimingatthetemperaturecontrolrequirementsofpowerbatteriesinnewenergyvehiclesduringoperation，athermal managementsystembasedonliquidcoolingwasdesigned.Thethermalcharactersticsandtemperaturedistributionofthebattery wereanalyzedthroughacombinationoftemperaturefieldtestingandnumericalsimulation，andanumericalmodelofthethermal managementsystemwasestablished.Theresultsshowthattheoptimizedserpentinechannelstructureimprovedthetemperature uniformity of the battery pack by 23% ，with the maximum temperature difference reduced to 3.2∘C .The system achieved optimal heat disipationperformancewhenthecooantflowratewas4.8L/in.Experimentalresultsdemonstratethatisliquidcolingsystemcan effectivelycontrolbatterytemperatureand extend battery life.

/words：Newenergyvehicle;Powerbattery;Thermalmanagementsystem;Temperatureuniformity;Channeloptimiza

0引言

动力电池是新能源汽车的核心部件，其性能和寿命直接影响整车的性能。（剩余6413字）