Analysis of thermal runaway propagation characteristics of lithium-ion battery module under local high temperature

IF 1.1 4区工程技术 Q4 Engineering

High Temperatures-high Pressures Pub Date : 2022-01-01 DOI:10.32908/hthp.v51.1165

Tong Hu, Fei Ma, Xiaoming Xu

引用次数: 0

Abstract

Lithium-ion batteries are increasingly used in the field of new energy vehicles. Thermal runaway is the biggest potential safety hazard. In order to achieve safer battery design, it is necessary to fully understand thermal runaway. In this research, the thermal abuse model of lithium-ion battery module is established. Temperature propagation characteristics of lithiumion battery pack under high temperature heat source is discussed and analyzed. The results show that there is consistency in the thermal runaway of lithium-ion battery at different surface heat source temperatures, and the thermal runaway of lithium-ion battery packs occurs at 453 K. The location of surface heat source only affects the distribution of temperature when thermal runaway occurs. The smaller the thermal conductivity of the battery spacer layer, the slower the temperature propagation when the battery is out of control.

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局部高温下锂离子电池组件热失控传播特性分析

锂离子电池在新能源汽车领域的应用越来越广泛。热失控是最大的安全隐患。为了实现更安全的电池设计，有必要充分了解热失控。本研究建立了锂离子电池模组的热滥用模型。对高温热源下锂离子电池组的温度传播特性进行了讨论和分析。结果表明:不同表面热源温度下锂离子电池热失控现象具有一致性，锂离子电池组热失控发生在453k;表面热源的位置只影响热失控时的温度分布。电池间隔层导热系数越小，电池失控时温度传播越慢。

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

High Temperatures-high Pressures THERMODYNAMICS-MECHANICS

CiteScore

1.00

自引率

9.10%

发文量

期刊介绍： High Temperatures – High Pressures (HTHP) is an international journal publishing original peer-reviewed papers devoted to experimental and theoretical studies on thermophysical properties of matter, as well as experimental and modelling solutions for applications where control of thermophysical properties is critical, e.g. additive manufacturing. These studies deal with thermodynamic, thermal, and mechanical behaviour of materials, including transport and radiative properties. The journal provides a platform for disseminating knowledge of thermophysical properties, their measurement, their applications, equipment and techniques. HTHP covers the thermophysical properties of gases, liquids, and solids at all temperatures and under all physical conditions, with special emphasis on matter and applications under extreme conditions, e.g. high temperatures and high pressures. Additionally, HTHP publishes authoritative reviews of advances in thermophysics research, critical compilations of existing data, new technology, and industrial applications, plus book reviews.