Comprehensive Analysis of Thermal Dissipation in Lithium-Ion Battery Packs

Fuente: arXiv
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Autores principales: Zhang, Xuguang, Zhang, Hexiang, Almansour, Amjad, Singh, Mrityunjay, Zhu, Hengling, Halbig, Michael C., Zheng, Yi
Formato: Preprint
Publicado: 2025
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author Zhang, Xuguang
Zhang, Hexiang
Almansour, Amjad
Singh, Mrityunjay
Zhu, Hengling
Halbig, Michael C.
Zheng, Yi
author_facet Zhang, Xuguang
Zhang, Hexiang
Almansour, Amjad
Singh, Mrityunjay
Zhu, Hengling
Halbig, Michael C.
Zheng, Yi
contents Effective thermal management is critical for lithium-ion battery packs' safe and efficient operations, particularly in applications such as drones, where compact designs and varying airflow conditions present unique challenges. This study investigates the thermal performance of a 16-cell lithium-ion battery pack by optimizing cooling airflow configurations and integrating phase change materials (PCMs) for enhanced heat dissipation. Seven geometric configurations were evaluated under airflow speeds ranging from 0 to 15 m/s, reflecting the operational conditions of civilian drones. A comprehensive 3D simulation approach was used to analyze the effects of inlet and outlet configurations, airflow dynamics, and PCM phase transition behavior. Results indicate that the trapezoidal (wide-base) configuration, paired with a 5-inlet and 1-outlet setup, achieves the most balanced performance, effectively maintaining optimal operating temperatures across low and high-speed airflow conditions. PCM integration further stabilized thermal behavior, with phase change durations extending to 12.5 min under tested conditions. These findings highlight the importance of geometric optimization and material integration in advancing compact and reliable thermal management systems for energy-dense battery packs. This study provides a foundation for designing efficient cooling strategies tailored to lightweight applications such as drones and portable energy storage systems.
format Preprint
id arxiv_https___arxiv_org_abs_2502_07070
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Comprehensive Analysis of Thermal Dissipation in Lithium-Ion Battery Packs
Zhang, Xuguang
Zhang, Hexiang
Almansour, Amjad
Singh, Mrityunjay
Zhu, Hengling
Halbig, Michael C.
Zheng, Yi
Systems and Control
High Energy Physics - Phenomenology
Effective thermal management is critical for lithium-ion battery packs' safe and efficient operations, particularly in applications such as drones, where compact designs and varying airflow conditions present unique challenges. This study investigates the thermal performance of a 16-cell lithium-ion battery pack by optimizing cooling airflow configurations and integrating phase change materials (PCMs) for enhanced heat dissipation. Seven geometric configurations were evaluated under airflow speeds ranging from 0 to 15 m/s, reflecting the operational conditions of civilian drones. A comprehensive 3D simulation approach was used to analyze the effects of inlet and outlet configurations, airflow dynamics, and PCM phase transition behavior. Results indicate that the trapezoidal (wide-base) configuration, paired with a 5-inlet and 1-outlet setup, achieves the most balanced performance, effectively maintaining optimal operating temperatures across low and high-speed airflow conditions. PCM integration further stabilized thermal behavior, with phase change durations extending to 12.5 min under tested conditions. These findings highlight the importance of geometric optimization and material integration in advancing compact and reliable thermal management systems for energy-dense battery packs. This study provides a foundation for designing efficient cooling strategies tailored to lightweight applications such as drones and portable energy storage systems.
title Comprehensive Analysis of Thermal Dissipation in Lithium-Ion Battery Packs
topic Systems and Control
High Energy Physics - Phenomenology
url https://arxiv.org/abs/2502.07070