热失控
套管
电池(电)
核工程
电弧
材料科学
汽车工程
热的
放热反应
法律工程学
环境科学
机械工程
化学
电极
工程类
功率(物理)
物理
有机化学
物理化学
气象学
量子力学
作者
Theo Ledinski,Andrey W. Golubkov,Oskar Schweighofer,Simon Erker
出处
期刊:Batteries
[MDPI AG]
日期:2023-10-31
卷期号:9 (11): 540-540
被引量:6
标识
DOI:10.3390/batteries9110540
摘要
Lithium-Ion battery cells and automotive battery systems are constantly improving as a result of the rising popularity of electric vehicles. With higher energy densities of the cells, the risks in case of failure rise as well. In the worst case, a fast exothermic reaction known as thermal runaway can occur. During thermal runaway, the cell can emit around 66% of its mass as gas and particles. An experimental setup was designed and showed that the gas-particle-vent of a cell going through thermal runaway can cause electric breakthroughs. These breakthroughs could start electric arcing in the battery system, which could lead to additional damages such as burning through the casing or igniting the vent gas, making the damage more severe and difficult to control. Uncontrollable battery fires must be prevented. The emitted gas was analyzed and the ejected particles were examined to discuss the potential causes of the breakthroughs.
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