锂离子动力电池电解液的热稳定性  

Thermal stability of high power lithium-ion battery electrolytes

作　　者：张旭[1,2,3] 王志[1,2,3] 王旭[2,3] 陈健[2,3] 耿甦[1] 

机构地区：[1]沈阳航空航天大学辽宁省通用航空重点实验室,辽宁沈阳110136 [2]沈阳航空航天大学辽宁省飞机火爆防控及可靠性适航技术重点实验室,辽宁沈阳110136 [3]沈阳航空航天大学安全工程学院,辽宁沈阳110136

出　　处：《化工进展》2016年第4期1140-1143,共4页Chemical Industry and Engineering Progress

摘　　要：锂离子动力电池是电动飞行器的核心部件,电池能否在飞行中保持正常工作状态直接决定驾乘人员和飞行器的安全,因此研究锂离子动力电池的安全性对于电动飞机和其他清洁能源项目的推广具有十分重要的意义。目前的工作主要针对锂离子动力电池电解液的热稳定性进行实验研究。首先使用TDB-6A型电脑闭口闪点测定仪对6种不同锂离子动力电池电解液进行闪点测定,然后,使用ARSST反应测试系统研究电解液在加热过程中的热失控反应。通过对所得实验数据的分析能够确定这6种锂离子动力电池电解液热稳定性的排序由高到低为:YH-51-7、YH-11-15、YH-61-7、YH-65-6、YH-51-6、YH-51-8。目前的实验结果可以为轻型电动飞机锂离子动力电池安全性研究提供有益的参考。The high power lithium-ion power battery is the key part of the electric powered aircraft. Whether the battery can keep normal working condition will directly determine the safety of the driver,passenger and aircraft. Therefore,the study on the safety of the high power lithium-ion power battery is very important for the spread of electric aircraft and other clean energy projects. The thermal stability of high power lithium-ion battery electrolytes is investigated in the current work. The TDB-6A flash point tester is used to determine closed cup flash point of six kinds of electrolytes. And then,the thermal runaway reactions of these electrolytes are studied using ARSST during the heating process. On the basis of these results,it can be obtained that the thermal stability of these electrolytes ranks as YH-51-7,YH-11-15,YH-61-7,YH-65-6,YH-51-6 and YH-51-8. This work is helpful for the safety investigation of high power lithium-ion batteries in light electric aircraft.

关 键 词：锂离子电池 电解液 热失控 稳定性 安全 

分 类 号：X949[环境科学与工程—安全科学]