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

리튬이온 및 리튬폴리머 배터리의 폭발과 화재 위험성에 관한 연구

  • Received : 2016.12.22
  • Accepted : 2017.03.24
  • Published : 2017.04.30

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.

리튬 이온 및 리튬 폴리머 배터리는 체적 에너지 저장 밀도가 높아 전자담배, 스마트폰, 전기자전거, 드론, 보조배터리 등과 같은 다양한 전자기기에 사용되며 심지어 골프카트 및 전기자동차에도 사용되고 있다. 그러나 최근 리튬 배터리를 사용하는 다양한 전자기기에서 충전 중 배터리 폭발현상이 빈번히 발생하고 있으며 폭발로 인하여 화재 및 신체 위해가 발생하고 있어 그 심각성이 대두되고 있다. 이를 위해 본 논문에서는 이러한 리튬 배터리의 작동 원리를 알아보고, 재현실험을 통하여 폭발 원인을 검증해 보았으며 이를 통하여 화재감식 기법 개발과 안전대책을 수립하기 위한 연구를 진행하였다.

Keywords

References

  1. Yonhap news, Electronic cigarette explosion defective protection circuit, 22th, April, 2015
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