锂离子电池新型分支通道翅片液体冷却板的设计优化

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中图分类号：TK124 文献标识码：A DOI：10.3969/j.issn.1674-8484.2025.03.010

Abstract：A new type of liquid cooling plate structure based on finned type was proposed to improve the comprehensive performanceofthebatterythermal managementsystem.Firstly，arhombicfinned plateliquidcooler wasselectedas theexperimentalobject，and the influenceofdifferentfinstructuresanddifferentfinarrangements onthe heat dissipation performance of the liquid cooler was investigated.Secondly，a new fin structure was proposed based on the optimized finned plate.Finaly，the NSGA-llalgorithm was used for multi-objective optimization，anditwasanalyzed thatthe influenceof structural parameters （finopening wide，finoutercontour thickness，fin inner cavity wide）on theaverage temperatureand pressure drop.Theresults show that theeliptical finned plate liquid cooler with a 3×8 arrangement has a 9% improvement in comprehensive performance compared to the rhombic finned plate liquid cooler，with anaverage temperature drop of about 0.1∘C and a pressure drop reduction of 0.43Pa Afteradding branch channels inside the eliptical fins，theaverage temperatureof the new fin structure after multi-objective optimization drops by 0.257∘C （204号 （0.7%） ，and the pressure drop drops by 0.784Pa （24号 （16.31%） ，indicating thatthecooling performanceof the liquid cold plate has beeneffectivelyimproved，thereby providinga newapproachand theoretical basis for the designand analysis of heat sinks.

Keywords： battery thermal management; finned liquid cold plate; multi-objective optimizationalgorithm numerical simulation

汽车电池作为电动汽车的重要组成部分，占据着极为重要的地位。（剩余13300字）