earticle

영어

Research was conducted to obtain a fire investigation database by observing the evolution of lithium ion batteries and debris according to each solvent. Hot water, room temperature water, water with ice, and water with dry ice are placed in each tank, a torch is used to activate a fully charged 18650 lithium-ion battery, then each tank is placed on fire. As a result of the study, the lower the temperature, the shorter the extinguishing time, the time taken for extinguishing, the temperature difference before and after the experiment, the percentage of residual value of lithium ion, the remaining battery after runaway, whether or not an explosion occurred during the fire, the duration of the explosion, and the residual value in the wreckage increased, and it was confirmed that the fire suppression time and the residual rate in ice water were high.