2023.3Vol.47No.3研究与设计收稿日期:2022-08-23基金项目:南方电网调峰调频发电有限公司科研类公开招标项目(0200002020030304JS00037)作者简介:李毓烜(1994—),男,湖南省人,硕士研究生,主要研究方向为电力系统自动化与新型储能技术应用。通信作者:崔海浩储能系统用三元锂离子电池热失控火灾特性李毓烜1,阚强2,崔海浩2(1.南方电网调峰调频发电有限公司,广东广州510630;2.应急管理部天津消防研究所,天津300381)摘要:锂离子电池是储能系统的重要组成部分,但储能系统用三元锂离子电池的热失控火灾特性尚未厘清,严重制约了此类储能设施消防控灭火手段的应用和储能行业的安全发展。通过储能系统用三元锂离子电池的热失控实验、量热实验和热扩展实验,研究了电池单体热失控和电池模组热扩展的发展规律。实验结果表明,储能系统用三元锂离子电池在热失控后会直接起火燃烧,释放出大量可燃气体,燃爆剧烈,会形成持续的喷射火,电池单体热失控容易触发相邻电池单体发生热失控,形成链式反应。关键词:三元锂离子电池;热失控;量热实验;热扩展中图分类号:TM912文献标识码:A文章编号:1002-087X(2023)03-0328-04DOI:10.3969/j.issn.1002-087X.2023.03.013ThermalrunawayinducedfirecharacteristicsofternarylithiumionbatteriesusedinenergystoragesystemLIYuxuan1,KANQiang2,CUIHaihao2(1.CSGPowerGenerationCo.,Ltd.,GuangzhouGuangdong510630,China;2.TianjinFireResearchInstituteofMEM,Tianjin300381,China)Abstract:Lithium-ionbatteryisanimportantpartofenergystoragesystem,butthethermalrunawaycharacteristicsofternarylithiumionbatteryusedinenergystoragesystemhavenotbeenclarified,whichseriouslyrestrictsthefirecontrolofsuchenergystoragefacilitiesandthedevelopmentofenergystorageindustry.Aseriesoftestswereconductedtostudythethermalrunaway,thermalrunawaypropagationandheatreleaseoftheternarylithiumionbattery.Thedevelopmentofsinglebatterythermalrunawayandbatterymodulethermalrunawaypropagationwereanalyzed.Thetestresultsshowthattheternarylithiumionbatteryusedintheenergystoragesystemmaydirectlycatchfireandburnfollowingthethermalrunaway,withreleasingalargeamountofcombustiblegases.Thethermalrunawayofsinglebatteryiseasytotriggerthefailureofadjacentbatteries,whichformsachainre...