"Numerical and Experimental Investigation of Enhanced Battery Thermal Management Using Composite Phase Change Material with Optimized Fin Arrays"

"Numerical and Experimental Investigation of Enhanced Battery Thermal Management Using Composite Phase Change Material with Optimized Fin Arrays" | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 5 August 2025 V1 Latest version Share on "Numerical and Experimental Investigation of Enhanced Battery Thermal Management Using Composite Phase Change Material with Optimized Fin Arrays" Authors : Prashant Kumar 0000-0002-7927-7365 and Sujit Kumar Verma [email protected] Authors Info & Affiliations https://doi.org/10.22541/au.175438282.25198488/v1 147 views 90 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract This study investigates the thermal performance of battery cells under a 5C discharge rate, focusing on the effectiveness of various phase change materials (PCMs) and fin configurations. Three PCMs—n-octadecane, RT33, and capric—are evaluated alongside two fin configurations (2 fins and 4 fins). The maximum liquid fraction achieved is 75.23% for n-octadecane with the 4-fin configuration, while capric reaches only 49%. The dual-axis plot of depth of discharge and voltage profile reveals a maximum voltage of 4 volts and a minimum stop voltage of 3 volts, with n-octadecane exhibiting the least voltage drop at 660 seconds. Surface heat flux analysis indicates a sharp decline to -784 W/m 2 for n-octadecane during the initial 100 seconds, while RT33 maintains a higher flux initially before stabilizing. Capric shows a gradual increase in surface heat flux, reaching -800 W/m 2 later in the discharge cycle. Notably, n-octadecane, combined with a 4-fin configuration, achieves the lowest temperature of 311.68K during the discharge, demonstrating superior thermal management (TM) compared to capric’s peak of 315.87K. These findings underscore the critical role of PCM selection and fin configuration in optimizing TM systems, achieving significant improvements in temperature regulation and battery performance, ultimately enhancing the safety and efficiency of electric vehicle battery systems. Furthermore, RT33’s high latent heat of fusion enables effective cooling throughout the discharge cycle, maintaining stable temperatures, while capric’s lower latent heat results in less effective heat absorption and higher temperatures. Supplementary Material File (manuscript.docx) Download 1.17 MB Information & Authors Information Version history V1 Version 1 05 August 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords automotive convection energy efficiency finite element method Authors Affiliations Prashant Kumar 0000-0002-7927-7365 Hanyang University Department of Mechanical Engineering View all articles by this author Sujit Kumar Verma [email protected] Hanyang University Department of Mechanical Engineering View all articles by this author Metrics & Citations Metrics Article Usage 147 views 90 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Prashant Kumar, Sujit Kumar Verma. "Numerical and Experimental Investigation of Enhanced Battery Thermal Management Using Composite Phase Change Material with Optimized Fin Arrays". Authorea . 05 August 2025. DOI: https://doi.org/10.22541/au.175438282.25198488/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . 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