航空动力锂离子电池热失控高温与冲击危害的被动防护包容性
O389; 锂离子电池热失控造成的热冲击将损坏安装结构,对周围人员和设备安全构成威胁,是限制其在航空领域应用的关键问题.通过自主搭建的锂离子电池热失控高温冲击实验平台研究发现,单节电池热冲击对电池包顶板的冲击压力高达13.23 kPa,致使其外表面温度高达274℃.为了有效包容锂离子电池热失控造成的高温冲击危害,提出了电池包顶板涂敷防火涂层的被动防护方法.通过实验研究发现,环氧树脂基膨胀型防火涂层可通过膨胀有效阻隔锂离子电池热失控冲击压力的影响,通过吸收热量降低并延缓电池包顶板的温度上升.分析锂离子电池热失控包容性验证实验结果可知,1.0 mm厚的E80S20涂层和E85S15B3涂层分别使电...
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| Published in | 爆炸与冲击 Vol. 45; no. 2; pp. 115 - 125 |
|---|---|
| Main Authors | , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
中国民航大学天津市城市空中交通系统技术与装备重点实验室,天津 300300
01.02.2025
中国民航大学工程技术训练中心,天津 300300%中国民航大学安全科学与工程学院,天津 300300%商飞时代(上海)航空有限公司,上海 201311%中国民航大学天津市城市空中交通系统技术与装备重点实验室,天津 300300 中国民航大学安全科学与工程学院,天津 300300 |
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| Abstract | O389; 锂离子电池热失控造成的热冲击将损坏安装结构,对周围人员和设备安全构成威胁,是限制其在航空领域应用的关键问题.通过自主搭建的锂离子电池热失控高温冲击实验平台研究发现,单节电池热冲击对电池包顶板的冲击压力高达13.23 kPa,致使其外表面温度高达274℃.为了有效包容锂离子电池热失控造成的高温冲击危害,提出了电池包顶板涂敷防火涂层的被动防护方法.通过实验研究发现,环氧树脂基膨胀型防火涂层可通过膨胀有效阻隔锂离子电池热失控冲击压力的影响,通过吸收热量降低并延缓电池包顶板的温度上升.分析锂离子电池热失控包容性验证实验结果可知,1.0 mm厚的E80S20涂层和E85S15B3涂层分别使电池包顶板最高温度下降52.16％和55.80％,结构最高形变分别降低72.2％和44.4％.研究结果表明,防火涂层被动防护技术能够有效提升电池舱体对热失控高温和冲击危害的包容性,可作为航空动力锂离子电池系统安全性设计的有效措施. |
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| AbstractList | O389; 锂离子电池热失控造成的热冲击将损坏安装结构,对周围人员和设备安全构成威胁,是限制其在航空领域应用的关键问题.通过自主搭建的锂离子电池热失控高温冲击实验平台研究发现,单节电池热冲击对电池包顶板的冲击压力高达13.23 kPa,致使其外表面温度高达274℃.为了有效包容锂离子电池热失控造成的高温冲击危害,提出了电池包顶板涂敷防火涂层的被动防护方法.通过实验研究发现,环氧树脂基膨胀型防火涂层可通过膨胀有效阻隔锂离子电池热失控冲击压力的影响,通过吸收热量降低并延缓电池包顶板的温度上升.分析锂离子电池热失控包容性验证实验结果可知,1.0 mm厚的E80S20涂层和E85S15B3涂层分别使电池包顶板最高温度下降52.16％和55.80％,结构最高形变分别降低72.2％和44.4％.研究结果表明,防火涂层被动防护技术能够有效提升电池舱体对热失控高温和冲击危害的包容性,可作为航空动力锂离子电池系统安全性设计的有效措施. |
| Abstract_FL | The thermal shock caused by thermal runaway of lithium-ion batteries causes damage in the installation structure and poses a threat to the safety of surrounding personnel and equipment,which is a key issue limiting their aviation applications.Through a self-built high-temperature impact experimental platform for thermal runaway of lithium battery,it was found that the impact pressure on the pack top plate of battery from single-cell thermal shock can reach up to 13.23 kPa,causing the external surface temperature beyond 274 ℃.The combined effect of high temperature and impact pressure increases the risk of the casing undergoing plastic deformation,buckling,or even failure.To effectively mitigate such risks,a passive protection method that involves applying a fireproof coating to the top plate of the battery pack.is proposed.Through large panel combustion experiments and cone calorimeter tests,it was found that the epoxy resin-based intumescent fireproof coatings can effectively block the impact pressure induced by thermal runaway of a lithium-ion battery by expanding,and absorbing heat,thereby reducing and delaying the temperature rise of the top plate of the battery pack,demonstrating excellent thermal shock resistance.By comparing the containment effects of fireproof coatings of different thicknesses,it was found that the 1.0-mm-thickness coating is more suitable for practical application requirements.Referring to relevant airworthiness regulations,verification tests were conducted on the thermal runaway containment of lithium battery.The analysis of the experiment results shows that the 1.0-mm-thickness E80S20 coating and E85S15B3 coating reduced the maximum temperature of the top plate of the battery pack by 52.16％and 55.80％,respectively.Additionally,the maximum structural deformation decreased by 72.2％and 44.4％,respectively.The study indicates that the passive protection technology of fireproof coating can effectively enhance the containment of high temperatures and impact hazards caused by thermal runaway.This approach can serve as an effective measure in the safety design of aviation power lithium-ion battery systems. |
| Author | 梁焰彭 刘媛 刘添添 杨娟 张青松 |
| AuthorAffiliation | 中国民航大学天津市城市空中交通系统技术与装备重点实验室,天津 300300;中国民航大学工程技术训练中心,天津 300300%中国民航大学安全科学与工程学院,天津 300300%商飞时代(上海)航空有限公司,上海 201311%中国民航大学天津市城市空中交通系统技术与装备重点实验室,天津 300300;中国民航大学安全科学与工程学院,天津 300300 |
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| Author_FL | LIU Yuan LIANG Yanpeng YANG Juan LIU Tiantian ZHANG Qingsong |
| Author_FL_xml | – sequence: 1 fullname: YANG Juan – sequence: 2 fullname: LIANG Yanpeng – sequence: 3 fullname: LIU Yuan – sequence: 4 fullname: LIU Tiantian – sequence: 5 fullname: ZHANG Qingsong |
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| Keywords | 热失控包容性 fire retardant coating passive protection 防火涂层 热冲击 被动防护 thermal shock 锂离子电池 thermal runaway containment lithium-ion battery |
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| PublicationTitle | 爆炸与冲击 |
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| Publisher | 中国民航大学天津市城市空中交通系统技术与装备重点实验室,天津 300300 中国民航大学工程技术训练中心,天津 300300%中国民航大学安全科学与工程学院,天津 300300%商飞时代(上海)航空有限公司,上海 201311%中国民航大学天津市城市空中交通系统技术与装备重点实验室,天津 300300 中国民航大学安全科学与工程学院,天津 300300 |
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| Title | 航空动力锂离子电池热失控高温与冲击危害的被动防护包容性 |
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