第12卷第6期2023年6月Vol.12No.6Jun.2023储能科学与技术EnergyStorageScienceandTechnology二次流蛇形通道锂离子电池散热性能陈雅,范立云,李晶雪,李美斯,徐超,顾远琪(哈尔滨工程大学,黑龙江哈尔滨150001)摘要:针对传统蛇形流道的大压降、高功耗问题,结合二次流结构,设计了一种新型的二次流蛇形液冷板,建立仿真模型,对比了传统蛇形液冷板和二次流蛇形液冷板的性能。另外,进一步研究了不同流速下二次流通道数量、通道宽度、通道角度、通道距离对二次流蛇形流道传热和压降特性的影响。结果表明,传统蛇形液冷板在增加了二次流结构后,液冷板进出口压降下降了90.69%,很大程度上解决了传统蛇形流道的问题;随着流速的增大,不同结构参数的液冷板的冷却效果增强,在流速大于0.4m/s后,最高温度维持在303K左右,最大温差维持在4.5K左右,压降和泵功随流速增大而增加;各个结构参数都存在最优值,当通道数量为7,通道宽度为4mm,通道角度为75°,通道距离为8mm时,系统的压降大大降低,很大程度上节省了泵功。关键词:锂离子电池;液冷;蛇形流道;二次流doi:10.19799/j.cnki.2095-4239.2023.0006中图分类号:TM911文献标志码:A文章编号:2095-4239(2023)06-1880-10Researchonheatdissipationoflithium-ionbatterieswithsecondaryflowserpentinechannelCHENYa,FANLiyun,LIJingxue,LIMeisi,XUChao,GUYuanqi(HarbinEngineeringUniversity,Harbin150001,Heilongjiang,China)Abstract:Anewsecondaryflowserpentineliquidcoldplateisproposedtoaddresstheissuesofhigh-pressuredropandsignificantpowerconsumptionassociatedwithtraditionalserpentinechannelscombinedwithsecondaryflowstructures.Thisstudyestablishesasimulationmodeltocomparetheperformanceoftraditionalserpentineliquidcoldplatesandsecondaryflowserpentineliquidcoldplates.Furthermore,theeffectsoffactorssuchaschannelnumbers,width,angle,anddistanceonthesecondaryflowserpentineflowchannel'sheattransferandpressuredropcharacteristicsundervariousflowvelocitiesareinvestigated.Theresultsshowthatincorporatingthesecondaryflowstructureintothetraditionalserpentineliquidcoldplatereducesthepressuredropattheinletandoutletby90.69%,largelyresolvingtheissuepresentintraditionalserpentinechannels.Astheflowrateincreases,thecoolingeffectofthel...