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http://dx.doi.org/10.15683/kosdi.2020.06.30.383

A Study on the Identification Technique and Prevention of Combustion Diffusion through ESS (Energy Storage System) Battery Fire Case  

Lee, Jung-Il (Fire Education & Training Division / Fire Marchall, National Fire Service Academy)
Publication Information
Journal of the Society of Disaster Information / v.16, no.2, 2020 , pp. 383-391 More about this Journal
Abstract
Purpose: To identify internal self ignition and ignition caused by external flames in energy storage rooms, and to analyze the difference between ignition due to overheating and ignition caused by external heat sources. Method: membrane melting point measurement, battery external hydrothermal experiment, battery overcharge experiment, comparative analysis of electrode plate during combustion by overcharge and external heat, overcharge combustion characteristics, external hydrothermal fire combustion characteristics, 3.4 (electrode plate comparison) / 3.5 (overcharge) /3.6 (external sequence) analysis experiment. Result: Since the temperature difference was very different depending on the position of the sensor until the fire occurred, it is judged that two temperature sensors per module are not enough to prevent the fire through temperature control in advance. Conclusion: The short circuit acts as an ignition source and ignites the mixed gas, causing a gas explosion. The electrode breaks finely due to the explosion pressure, and the powder-like lithium oxide is sparked like a firecracker by the flame reaction.
Keywords
Energy Storage System (ESS); Membrane Melting Point Measurement; Battery External Hydrothermal Experiment; Battery Overcharge Experiment; Overcharge and External Hydrothermal Overcharge Combustion Characteristics; External Hydrothermal Fire Combustion Characteristics;
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  • Reference
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