锂离子电池模组热失控传播的结构因素影响分析

王骞; 李顶根; 李卫; 徐鹏

doi:10.3969/j.issn.2095-560X.2019.04.001

新能源进展 >

2019 , Vol. 7 >Issue 4: 295 - 301

DOI: https://doi.org/10.3969/j.issn.2095-560X.2019.04.001

锂离子电池模组热失控传播的结构因素影响分析

王骞 ,
李顶根 ,
李卫 ,
徐鹏

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1. 华中科技大学中欧清洁与可再生能源学院,武汉 430074;
2. 华中科技大学能源与动力工程学院,武汉 430074;
3. 海军驻大连426厂军事代表室,大连 116000

王骞（1990-）,男,硕士研究生,主要从事新能源汽车测控技术和电池可靠性计算研究。李顶根（1977-）,男,副教授,主要从事动力电池和动力机械电子测控技术研究。

收稿日期: 2019-03-01

修回日期: 2019-06-09

网络出版日期: 2019-08-29

基金资助

国家重点研发计划项目（2018YFB0104100）

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Analysis of Structural Factors Affecting Thermal Runaway Propagation of Li-Ion Battery Modules

WANG Qian ,
LI Ding-gen ,
LI Wei ,
XU Peng

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1. Huazhong University of Science and Technology, China-EU Institute for Clean and Renewable Energy, Wuhan 430074, China;
2. Huazhong University of Science and Technology, School of Energy and Power Engineering, Wuhan 430074, China;
3. Military representative room of the PLA navy plant 426 in Dalian, Dalian 116000, China

Received date: 2019-03-01

Revised date: 2019-06-09

Online published: 2019-08-29

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摘要

为优化锂离子电池模组的结构设计,通过热失控数值分析,结合COMSOL MULTIPHYSICS软件搭建了圆柱电池模组的三维热失控传播模型,研究不同排列结构和电池间隙下的热失控传播特性。结果表明：插排结构能有效降低热失控传播速率;增加模组中电池间隙,电池的热失控触发时间后移;在模组热失控后期,扩散速率加快。

关键词： 锂离子电池模组; 热失控; 排列结构; 电池间隙; 传播速率

本文引用格式

王骞 , 李顶根 , 李卫 , 徐鹏 . 锂离子电池模组热失控传播的结构因素影响分析[J]. 新能源进展, 2019 , 7(4) : 295 -301 . DOI: 10.3969/j.issn.2095-560X.2019.04.001

Abstract

In order to optimize the structure design of lithium-ion battery modules, a three-dimensional thermal runaway propagation model of cylindrical battery modules was constructed by thermal runaway numerical analysis combined with COMSOL MULTIPHYSICS software, and the thermal runaway propagation characteristics of the different arrangement structures and the gap of the battery were studied. The results showed as follows: the insert structure can effectively reduce the thermal runaway propagation rate; increasing the battery gap in the module makes the thermal runaway trigger time move backward; in the late thermal runaway of the module, the diffusion rate was accelerated.

Key words： lithium-ion battery module; thermal runaway; alignment structure; battery gap; propagation rate

参考文献

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