电池(电)
计算机科学
汽车工程
锂离子电池
电解质
故障检测与隔离
断层(地质)
电压
锂(药物)
可靠性工程
电气工程
工程类
化学
功率(物理)
电极
物理化学
物理
量子力学
人工智能
内分泌学
地震学
执行机构
地质学
医学
作者
M. Wenger,Ray A. Waller,Vincent Lorentz,Martin März,M. Herold
标识
DOI:10.1109/iecon.2014.7049366
摘要
Large lithium-ion battery systems rely on battery monitoring and management systems to ensure safe and efficient operation. Typically the battery current, the cell voltages, and the cell temperatures are monitored. This paper describes the use of gas sensors in large lithium-ion battery systems in addition to conventionally used means of battery monitoring. An undetected electrolyte leak in a cell can pose a serious threat to users and maintenance personnel. Experiments described in this paper show that a gas sensor can easily detect volatile organic compounds (VOC) from the leaking electrolyte, whereas standard cell monitoring methods can only detect a leak indirectly over premature cell performance degradation. Therefore, gas sensors offer a fast, simple, and cost efficient way to increase the safety of battery systems. This paper gives a description of a suitable gas sensor and its application in a battery system, followed by the identification of relevant use cases. In the experimental section the performance of the gas sensor in these use cases is investigated and evaluated. The paper ends with a summary of the results and a short outlook.
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