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[1]侯亚楠,林晓晔,侯正波,等.顶棚作用下磷酸铁锂电动自行车燃烧与烟气输运特性研究*[J].中国安全生产科学技术,2025,21(10):166-172.[doi:10.11731/j.issn.1673-193x.2025.10.020]
　HOU Yanan,LIN Xiaoye,HOU Zhengbo,et al.Study on combustion and smoke transport characteristics of lithium iron phosphate electric bicycles under ceiling confinement[J].Journal of Safety Science and Technology,2025,21(10):166-172.[doi:10.11731/j.issn.1673-193x.2025.10.020]
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顶棚作用下磷酸铁锂电动自行车燃烧与烟气输运特性研究*

《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
21
期数:
2025年10期
页码:
166-172
栏目:
职业安全卫生管理与技术
出版日期:
2025-10-30

文章信息/Info

Title:
Study on combustion and smoke transport characteristics of lithium iron phosphate electric bicycles under ceiling confinement
文章编号:
1673-193X(2025)-10-0166-07
作者:
侯亚楠; 林晓晔; 侯正波; 李凌; 王永逸; 靳新斌; 李凯玲; 丁伟
(1.长安大学 地质工程与测绘学院，陕西 西安 710061；
2.中国安全生产科学研究院，北京 100012；
3.中国矿业大学 煤矿瓦斯与火灾防治教育部重点实验室，江苏 徐州 221116；
4.中国矿业大学（北京） 应急管理与安全工程学院，北京 100083)
Author(s):
HOU Ya’nan;  LIN Xiaoye;  HOU Zhengbo;  LI Ling;  WANG Yongyi;  JIN Xinbin;  LI Kailing;  DING Wei
（1.School of Geological Engineering and Geomatics,Chang’an University,Xi’an Shaanxi 710061,China;
2.China Academy of Safety Science and Technology,Beijing 100012,China;
3.Key Laboratory of Gas and Fire Control for Coal Mines,China University of Mining and Technology,Xuzhou Jiangsu 221116,China;
4.School of Emergency Management and Safety Engineering,China University of Mining & Technology-Beijing,Beijing 100083,China）
关键词:
电动自行车; 顶棚受限; 射流火; 烟气蔓延; 热失控
Keywords:
electric bicycles;  ceiling-constrained space;  jet fire;  smoke spread;  thermal runaway
分类号:
X928；TM912
DOI:
10.11731/j.issn.1673-193x.2025.10.020
文献标志码:
A
摘要:
为研究电动自行车在顶棚作用下热失控后的燃烧特性与烟气蔓延规律，通过自主搭建高度为2.2 m的电动自行车车棚，开展48 V/20 Ah磷酸铁锂电动自行车原位实体燃烧实验，分析锂电类电动自行车燃烧火焰形态、温度分布和烟气蔓延过程。研究结果表明：在顶棚受限空间作用下，磷酸铁锂电动自行车燃烧从起火到结束持续了约16 min，燃烧先向车身后方蔓延，随后向车身前方蔓延，燃烧过程中出现不同角度特殊射流火形态。电动自行车燃烧过程中锂电池温度变化最为显著，最高可达770.8 ℃。电动自行车车体上方火焰温度变化主要受锂电池组不稳定射流火焰与车身火羽流共同作用，整体呈现先增大后减小的趋势。在受热初期，烟气基本无法积聚；在明火燃烧阶段，烟气会在顶棚积聚，形成较厚烟气层，烟气层厚度达0.52 m；出现明火656 s后，烟气下沉，整个空间可见度降低。研究结果可为电动自行车车棚火灾防控措施制定和火灾风险评估提供参考。
Abstract:
In order to investigate the combustion characteristics and smoke spread patterns of electric bicycles after lithium battery thermal runaway under ceiling confinement,an in-situ combustion experiment was conducted on a 48 V/20 Ah lithium iron phosphate (LFP) physical electric bicycle inside a self-built 2.2 m high bicycle shelter.The experiment analyzed the flame morphology,temperature distribution,and smoke spread process during the combustion of the lithium-ion-battery-powered electric bicycle.The results indicate that the combustion of the LFP electric bicycle lasted approximately 16 minutes from ignition to extinction under ceiling-constrained space.The fire first spread toward the rear of the vehicle body,then toward the front,and during combustion special jet-fire shapes at different angles were observed.The temperature change of the lithium-ion battery was the most significant during the combustion process of electric bicycle,reaching a maximum of 770.8 ℃.The variation in flame temperature above the electric bicycle body was primarily influenced by the combined effects of the unstable jet flames from the battery pack and the fire plume from the vehicle body,showing an overall trend of initial increase followed by decrease.During the initial heating phase,smoke could hardly accumulate.In the open flame combustion stage,smoke accumulated under the ceiling,forming a relatively thick smoke layer，thickness of the smoke layer reached 0.52 m.At 656 s after the appearance of the open flame,smoke began to descend,leading to reduced visibility throughout the ceiling-constrained space.The findings can provide a reference for developing fire prevention and control measures,as well as for risk assessment of electric bicycle fires in ceiling-constrained environments.

参考文献/References:

［1］刘振飞，何学超，冯小军.电动自行车燃烧特性及火灾抑制效果试验研究［J］.消防科学与技术,2025,44(1):48-53. LIU Zhenfei，HE Xuechao，FENG Xuejun.Experimental study on the combustion characteristics and fire suppression effect of electric bicycles［J］.Fire Science and Technology,2025,44(1):48-53.
［2］ZHOU Z,LI M,ZHOU X,et al.Investigating thermal runaway triggering mechanism of the prismatic lithium iron phosphate battery under thermal abuse［J］.Renewable Energy,2024,220:119674.
［3］ZHOU G,LU H,ZHANG Q,et al.Experimental study on thermal runaway and flame eruption characteristics of NCM523 lithium-ion battery induced by the coupling stimulations of overcharge-penetration［J］.Process Safety and Environmental Protection,2024,191(Part A):131-145.
［4］封居强,蔡峰,伍龙,等.矿用锂离子电池针刺诱导内部短路的安全特性研究［J］.中国安全生产科学技术,2023,19(10):81-87. FENG Juqiang,CAI Feng,WU Long,et al.Study on safety characteristics of nail penetration-induced internal short circuit for lithium-ion battery used in mine［J］.Journal of Safety Science and Technology,2023,19(10):81-87.
［5］王少嘉，王志，赵庆杰，等.高温和低温短期冲击下的锂离子电池热失控特性分析［J］.中国安全科学学报,2024,34(12):159-167. WANG Shaojia，WANG Zhi，ZHAO Qingjie,et al.Analysis of thermal runaway characteristics of lithium-ion batteries under high and low temperature short-term shocks［J］.China Safety Science Journal,2024,34(12):159-167.
［6］LI L,YAO M,CHEN Z,et al.Research on key parameters of thermal runaway in small lithium-ion batteries［C］.IEEE,2024.
［7］HE D,WANG J,PENG Y,et al.Research advances on thermal runaway mechanism of lithium-ion batteries and safety improvement［J］.Sustainable Materials and Technologies,2024,41:e1017.
［8］GALUSHKIN N E,YAZVINSKAYA N N,GALUSHKIN D N.Causes and mechanism of thermal runaway in lithium-ion batteries,contradictions in the generally accepted mechanism［J］.Journal of Energy Storage,2024,86(B):111372.
［9］黄怀宇，黄思林，赵荣超，等.磷酸铁锂电池铝塑膜壳体绝缘失效触发热失控特性实验研究［J］.储能科学与技术，2025,14(2):613-623. HUANG Huaiyu，HUANG Silin，ZHAO Rongchao,et al.Experimental study on thermal runaway characteristics triggered by insulation failure of aluminum-plastic film shell of lithium iron phosphate battery［J］.Energy Storage Science and Technology,2025,14(2):613-623.
［10］YU X,WEI N,LI M.Quantitative analysis of lithium-Ion battery eruption behavior in thermal runaway［J］.Batteries,2024,10(6)：182.
［11］DENG J,CHEN B,LU J,et al.Thermal runaway and combustion characteristics,risk and hazard evaluation of lithium-iron phosphate battery under different thermal runaway triggering modes［J］.Applied Energy,2024,368:123451.
［12］LI H,GAO Q,LING J,et al.Thermal runaway propagation and combustion characteristics of enclosed LiNi0.8Co0.1Mn0.1O2 pouch battery modules in an open environment［J］.Journal of Energy Storage,2024,85:110877.
［13］WU X,HU Y,WU T,et al.Numerical simulation study of thermal runaway jet fire characteristics of forced air-cooled cylindrical battery module［J］.Case Studies in Thermal Engineering,2025,66:105750.
［14］张青松，贾燕，翟祺悦，等.受限空间锂离子电池热失控热传递仿真研究［J］.中国安全科学学报,2024,34(6):65-72. ZHANG Qingsong，JIA Yan，ZHAI Qiyue,et al.Simulation study on heat transfer of thermal runaway lithium-ion battery in confined space［J］.China Safety Science Journal,2024,34(6):65-72.
［15］郭天宝，王淮斌，李思成，等.锂离子电池热失控传播及其阻隔材料研究进展［J］.化工新型材料,2025,53(7):92-97. GUO Tianbao，WANG Huaibin，Li Sicheng,et al.Research progress on thermal runaway propagation of lithium-ion batteries and its barrier materials［J］.New Chemical Materials,2025,53(7):92-97.
［16］何学超，刘振飞，何瑾.三元锂电池电动自行车火灾燃烧特性研究［J］.消防科学与技术,2024,43(5):722-725. HE Xuechao，LIU Zhenfei，HE Jin.Study on combustion characteristics of ternary lithium battery-electric bicycle fires［J］.Fire Science and Technology,2024,43(5):722-725.
［17］李青蔚，杨智翔，邓军，等.电动自行车燃烧特性及简易分隔防火效果试验研究［J］.安全与环境学报,2023,23(12):4271-4278. LI Qingwei，YANG Zhixiang，DENG Jun,et al.Experimental study on the combustion characteristics of electric bicycles and the effect of simple separation fire［J］.Journal of Safety and Environment,2023,23(12):4271-4278.
［18］LI L,LIU B,ZHENG W,et al.Investigation and numerical reconstruction of a full-scale electric bicycle fire experiment in high-rise residential building［J］.Case Studies in Thermal Engineering,2022,37:102304.
［19］李泽弘，华菲.基于数值模拟的电动自行车火灾亡人原因分析［J］.消防科学与技术,2021,40(1):135-140. LI Zehong，HUA Fei.Analysis on death cause of an electric bicycle fire based on numerical simulation［J］.Fire Science and Technology,2021,40(1):135-140.
［20］STURM P,FLEITNER P,FRUHWIRT D,et al.Fire tests with lithium-ion battery electric vehicles in road tunnels［J］.Fire Safety Journal,2022,12(134)：103695.
［21］ZHU N,TANG F.Experimental study on flame morphology,ceiling temperature and carbon monoxide generation characteristic of prismatic lithium iron phosphate battery fires with different states of charge in a tunnel［J］.Energy,2024,301:131725.
［22］HUANG Y,XU P,DONG B,et al.Thermal runaway characteristics of lithium-ion batteries in a branched tunnel:impact of longitudinal ventilation and cell state of charge［J］.Energy,2025,335:138097.
［23］WANG Z,ZHAO Q,YIN B,et al.Influence of longitudinal wind on thermal runaway and fire behaviors of 18650 lithium-ion batteries in a restricted channel［J］.Journal of Power Sources,2023,567:232974.

相似文献/References:

[1]侯亚楠,靳新斌,王志诚,等.磷酸铁锂电动自行车火灾燃烧特性研究*[J].中国安全生产科学技术,2025,21(9):124.[doi:10.11731/j.issn.1673-193x.2025.09.016]
　HOU Yanan,JIN Xinbin,WANG Zhicheng,et al.Study on the combustion characteristics of lithium iron phosphate electric bicycle fires[J].Journal of Safety Science and Technology,2025,21(10):124.[doi:10.11731/j.issn.1673-193x.2025.09.016]

备注/Memo

备注/Memo:
收稿日期： 2025-04-01
*基金项目： 国家自然科学基金青年科学基金项目（52504200）；中国博士后特别资助基金项目（2025T180447）；中国安全生产科学研究院基本科研业务费专项资金项目（2025JBKY07）
作者简介： 侯亚楠，博士，讲师，主要研究方向为受限空间火灾与新能源车辆火灾等。
通信作者： 丁伟，硕士，高级工程师，主要研究方向为轨道交通及新能源安全等。
更新日期/Last Update: 2025-10-29