质子交换膜燃料电池双极板折线流场设计

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中图分类号：U463.633 文献标识码：A 文章编号：1003-8639（2025）10-0082-05

【Abstract】Proton exchange membrane fuel cels are regardedas a clean energy technology with broad application prospects due to their simple structure，reliableoperation，high power generation eficiencyand the factthatthey only produce pollution-free water.At present，proton exchange membrane fuelcels have become the most widelyused typeof fuelcell inthenewenergyvehicleindustry.Among itscorecomponents，thebipolarplateplaysacrucialrole.Thegrooves machinedon itssurface are calledflow fields，whose main functions include transporting reaction gases，achieving uniform gasdistribution，andassisting inthedischargeof product water.The designqualityof theflow field structure directly afects the overallperformanceof thefuelcell.Byadjusting thenumberofbends inthepolygonalflowchannel，thearticle designed three diferent structures of polygonalflow fieldsand conducted simulation studies onthese threestructures.The simulationresultsshowthatcomparedwiththetraditionaltraight-channelflowfield，theoptimizedzigzagflowfieldexhibits significantimprovements inmultipleaspects，includingcurentdensitydistrbution，waterdistribution，gasdistribution，and pressure distribution，etc.Among them，the improvementofcurentdensitydistributionand waterdistribution is particularly prominent.Themaximumdiffrenceincurrentdensityoftheimprovedzigzagedflowfieldisreducedbyapproximately0.10A/ cm²comparedtothestraight-chanel structure，whilethemaximum wateractivityisdecreasedbyaboutO.O5，ffectively compensating for the weak drainage performance of the traditional straight-channel flow field.

【Key words 】PEMFC;automobile fuel cell；bipolar plate;fuel cell runner;simulation

0 引言

当前，能源短缺问题日益严峻，开发高效、环保的新能源技术显得尤为重要[]。（剩余6863字）