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http://dx.doi.org/10.7731/KIFSE.2016.30.4.111

Experimental Study on the Explosion and Fire Risks of Mobile Phone Batteries  

Lee, Ho-Sung (Dept. of Fire and Disaster Protection Engineering, Hoseo Univ.)
Kim, Si-Kuk (Dept. of Fire and Disaster Protection Engineering, Hoseo Univ.)
Publication Information
Fire Science and Engineering / v.30, no.4, 2016 , pp. 111-120 More about this Journal
Abstract
This is an experimental study to analyze the explosion and fire hazards of mobile phone batteries. Using the lithium-ion batteries currently used on smart phone as the experiment samples, the experiments were conducted by overcharging, internal and external short circuit, and thermal shock with the potential of explosion and fire caused by careless use or abnormal conditions. The experiment results showed that, in the case of overcharging and external short circuit, there was no explosion and fire hazard in the normal operation of the protection circuit module (PCM), but there were big risks when the PCM faulted conditions were assumed. In the case of the experiments by internal short circuit and thermal shock, such risks varied depending on a battery charge state. In other words, it could be verified that there were low risks of explosion and fire in a full discharge state, but there were high risks in a full charge state. These experiment results suggest that to minimize the explosion and fire hazards of mobile phone batteries, an alarm device is necessary when the PCM fault occurs. In addition, a solid battery case should be made and safety equipment, such as a cooling device to avoid high temperature, is needed.
Keywords
Mobile phone batteries; Explosion and fire risks; Overcharge; External and internal short circuit; Thermal shock;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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