Study on the accompanying behavior of combustible gas in the combustion process of lithium-ion batteries
In this paper,five types of lithium-ion batteries are used as experimental objects to study the associated behavior of combustible gases in the combustion process of lithium-ion batteries.The influence mechanism of different energy densities and combustion behaviors on the flue gas content in the whole process of thermal runaway under full charge state(100%SOC)was analyzed.The research results show four combustion behaviors when thermal runaway occurs in the battery.Thermal runaway induces the generations of CO,HCL,CO2,NH3,and other smoke,of which CO gas has the highest total release.The relationship between different fire combustion behaviors and gas production concentration is similar in time to the temperature change curve of thermal runaway.The amount of smoke generated linearly depends on the increase of energy density.
Lithium-ion batteryFire burning behaviorEnergy densityFlue gas content
NETL
NSTL
万方数据
