earticle

영어

In this study, the combustion patterns and the causes of ignition in electric kickboard fire accidents were analyzed. Due to the thermal runaway of the Li-ion battery, The pour pattern and flight of flames characteristics appeared, which are characterized by forming an organic solvents and an independent ignition sites, It is hoped that it will be used as an investigation data for similar accident analysis. The tendency to occur in the state of 100 % charged SOC were shown, but the correlation with the charging environment is low. Pyrolysis or thermal factors of the electrolyte during the charging process seem to be relevant. In view of the characteristics and examples of electric kickboard fire and firefighting standards, It is necessary to classify the appropriate fire risks for Li-ion batteries.