带自动灭火装置的车用锂电池箱盖系统开发与验证

doi:10.16265/j.cnki.issn1003-3033.2019.03.007

中国安全科学学报 ›› 2019, Vol. 29 ›› Issue (3): 39-44.doi: 10.16265/j.cnki.issn1003-3033.2019.03.007

带自动灭火装置的车用锂电池箱盖系统开发与验证

刘得星^1,2, 兰凤崇^1,2 教授, 陈吉清^**1,2 教授, 刘蒙蒙^1,2

1 华南理工大学机械与汽车工程学院,广东广州 510640;
2 广东省汽车工程重点实验室,广东广州 510640

收稿日期:2018-11-06 修回日期:2019-01-13 发布日期:2020-11-26
通讯作者: ^**陈吉清(1966—),女,湖南郴州人,博士,教授,博士生导师,主要从事电动汽车被动安全方面的研究。E-mail:chjq@scut.edu.cn。
作者简介:刘得星 (1993—),男,湖北黄冈人,硕士研究生,研究方向为电动汽车安全。E-mail:liudexing1993@126.com。
基金资助:
国家重点研发计划项目(2018YFB0104100)

A cover system with automatic extinguishing device for vehicle lithium battery: development and verification

LIU Dexing ^{1, 2}, LAN Fengchong^{1, 2}, CHEN Jiqing^{1, 2}, LIU Mengmeng^{1, 2}

1 School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou Guangdong 510640, China;
2 Key Laboratory of Automotive Engineering of Guangdong Province, South China University of Technology China,Guangzhou Guangdong 510640, China

Received:2018-11-06 Revised:2019-01-13 Published:2020-11-26

摘要/Abstract

摘要： 基于主、被动安全相结合的思路,针对目前车载锂电池包热失控主动监测与预防措施存在的不足,开发一种带自动灭火装置的锂电池箱盖系统。通过燃烧试验测出单块三元锂电池及其主要组件的燃烧特性,得到相应的温度及热释放速率曲线;以此为基础,确定箱盖系统总体设计方案,并对火灾探测模块及灭火模块进行选型和设计;最后,结合Semenov热失控原理、传热学理论及GB50084—2017的设计要求,验证箱盖系统应用在某电动车锂电池箱中的灭火效果。结果表明:该箱盖系统能有效监测并扑灭锂电池包早期局部火灾,并持续冷却降温,防止火灾复燃,具有较强的市场推广潜力。

关键词: 电动汽车, 锂电池组, 被动安全, 燃烧特性, 自动灭火装置, 电池箱盖系统

Abstract: In view of the shortcomings in the measures for monitoring and preventing the thermal runaway of vehicle lithium battery, a lithium battery cover system with an automatic extinguishing device was developed.For developing the system, combustion characteristics of a single ternary lithium-ion battery and its main components were measured by carrying out combustion tests, and corresponding temperature and heat release rate curves were obtained. Based on this, the overall design scheme of the cover system was determined, and the fire detection module and fire extinguishing module were selected and designed. Finally, combined with Semenov thermal runaway principle, heat transfer theory and the design requirements of GB50084-2017, the fire extinguishing effect of the cover system applied to a battery pack of an electric vehicle is verified. The results show that the cover system can effectively monitor and extinguish the early local fire of battery pack, and keep cooling to prevent the fire from re-igniting, which has a strong marketing potential.

Key words: electric vehicle, lithium battery, passive safety, combustion characteristics, automatic extinguisher, battery cover system

中图分类号:

X924.4

刘得星, 兰凤崇, 陈吉清, 刘蒙蒙. 带自动灭火装置的车用锂电池箱盖系统开发与验证[J]. 中国安全科学学报, 2019, 29(3): 39-44.

LIU Dexing , LAN Fengchong, CHEN Jiqing, LIU Mengmeng. A cover system with automatic extinguishing device for vehicle lithium battery: development and verification[J]. China Safety Science Journal, 2019, 29(3): 39-44.

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带自动灭火装置的车用锂电池箱盖系统开发与验证

A cover system with automatic extinguishing device for vehicle lithium battery: development and verification

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