A Study on Explosion and Fire Risk of Lithium-Ion and Lithium-Polymer Battery

Abstract

Because Li-ion battery and Li-Polymer battery have high-energy storage density, they are used for various electronic devices such as electronic cigarette, electronic bicycle, drone, second battery, even golf cart and electronic car. Recently, however, battery explosion is sometimes occurring on electronic devices using Li-ion battery and is becoming serious as bodily harm is breaking out due to explosion. For this, this paper described the Li-ion Battery's operating principles and verified the cause of explosion by overload tests caused by the high-energy storage density. According to the these experiments, we conducted a study to develope scanning techniques of fire and safety measures.

Electrical and thermal interplay in lithium‐ion battery internal short circuit and safety protection

“…The safety of lithium‐ion battery attracts increasing attentions nowadays as more and more batteries are used in our life. Moreover, fire accidents caused by battery in hybrid electric vehicles (HEVs) or electric vehicles (EVs) provoke public concern 1‐4 . Excessive heat generation and gas generation are the direct cause of thermal runaway of lithium‐ion battery.…”

“…Moreover, fire accidents caused by battery in hybrid electric vehicles (HEVs) or electric vehicles (EVs) provoke public concern. [1][2][3][4] Excessive heat generation and gas generation are the direct cause of thermal runaway of lithium-ion battery. When heat generation rate is bigger than heat dissipation rate, temperature increases.…”

Analysis of Discharge Characteristics and Fire Risk of Mobile Phone Batteries according to the Concentration of Salt Water

“…리튬-이온 배터리는 가연성 전해질을 포함하고, 에너지 밀도가 높아 고온 환경에 노출되면 스스 로 가열하게 되는 특성이 있다. 리튬-이온 배터리가 다른 물체에 의해 찍히거나, 파손 시 배터리 내부 단락에 의해 폭발 및 열폭주 현상이 발생할 수도 있다 (1)(2)(3)(4) Figure 5와 같이, 배터리 2개 Figure 2. Method for measurement of salt water concentration.…”