Modeling and Simulation of a Gas-Exhaust Design for Battery Thermal Runaway Propagation in a LiFePO4 Module

IF 5.4 3区材料科学 Q2 CHEMISTRY, PHYSICAL

ACS Applied Energy Materials Pub Date : 2024-05-24 DOI:10.3390/batteries10060176

Songtong Zhang, Xiayu Zhu, Jingyi Qiu, Chengshan Xu, Yan Wang, Xuning Feng

引用次数: 0

Abstract

The release of flammable gases during battery thermal runaway poses a risk of combustion and explosion, endangering personnel safety. The convective and diffusive properties of the gas make it challenging to accurately measure gas state, complicating the assessment of the battery pack exhaust design. In this paper, a thermal resistance network model is established, which is used to calculate the battery thermal runaway propagation. Gas accumulation after thermal runaway venting of a LiFeO4 module is studied using ANSYS Fluent under different venting schemes. The results show that the scheme of battery inversion and simultaneous exhaust from the side and bottom of the module is optimal. The methods and results presented can guide the design of LiFeO4 cell pack runners.

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针对磷酸铁锂电池模块热失控传播的气体排气设计建模与仿真

电池热失控时释放出的可燃气体有燃烧和爆炸的危险，危及人员安全。由于气体具有对流和扩散特性，因此准确测量气体状态具有挑战性，从而使电池组排气设计的评估变得更加复杂。本文建立了热阻网络模型，用于计算电池热失控传播。使用 ANSYS Fluent 研究了不同排气方案下锂铁（LiFeO4）模块热失控排气后的气体积累情况。结果表明，电池反转并同时从模块侧面和底部排气的方案最佳。所提出的方法和结果可以指导锂电池组流道的设计。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ACS Applied Energy Materials Materials Science-Materials Chemistry

CiteScore

10.30

自引率

6.20%

发文量

1368

期刊介绍： ACS Applied Energy Materials is an interdisciplinary journal publishing original research covering all aspects of materials, engineering, chemistry, physics and biology relevant to energy conversion and storage. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important energy applications.