不同触发条件下的钛酸锂电池热失控特性研究  

Research on the thermal runaway characteristics of lithium titanate batteries under different trigger conditions

作　　者：邢学彬 袁德强 王占国[2] 黄伟男 渐彬彬 XING Xue-bin;YUAN De-qiang;WANG Zhan-guo;HUANG Wei-nan;JIAN Bin-bin(CRRC Changchun Railway Vehicles Co.,Ltd.,Jilin Changchun 130062,China;National Active Distribution Network Technology Research Center,Beijing Jiaotong University,Beijing 100044,China;Travel Sky Technology Limited,Beijing 100105,China;National Lithium Battery Product Quality Supervision and Inspection Center(Shandong),Shandong Zaozhuang 277800,China)

机构地区：[1]中车长春轨道客车股份有限公司,吉林长春130062 [2]北京交通大学国家能源主动配电网技术研发中心,北京100044 [3]中国民航信息网络股份有限公司,北京100105 [4]国家锂电池产品质量监督检验中心(山东),山东枣庄277800

出　　处：《消防科学与技术》2021年第6期787-792,共6页Fire Science and Technology

基　　金：国家重点研发计划项目(2016YFB1200500)。

摘　　要：以两款商用的、不同容量、不同封装形式的钛酸锂电池为研究对象,利用过充、针刺、加热的方式进行了热失控触发的实验研究。通过对实验结果的归纳与总结,发现对于钛酸锂电池,同样的电流激励下,其在过充期间的产热更为明显;针刺方向与电池封装形式对热失控触发存在较大影响;过充电池在相同功率下的加热热失控所需时间远远小于满电态电池。Two commercial lithium titanate batteries with different capacities and different packaging forms were taken as the research object,the experimental study of thermal runaway triggering was carried out by means of overcharging,acupuncture and heating.Through summary of the experimental results,it is found that for lithium titanate batteries,under the same current excitation,the heat generation during the overcharge period is more obvious.Piercing direction and battery packaging have greater impact on the triggering of thermal runaway.The time required for an overcharged battery to run away of heating under the same power is much shorter than that of a fully charged battery.

关 键 词：钛酸锂电池 热失控 触发条件 实验对比 

分 类 号：X913.4[环境科学与工程—安全科学] TM912[电气工程—电力电子与电力传动]