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26 May 2011 Battery outgassing sensor for electric drive vehicle energy storage systems
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Lithium-ion batteries have been proven efficient as high power density and low self-discharge rate energy storage systems, specifically in electrical drive vehicles. An important safety factor associated with these systems is the potential hazardous release and outgassing of toxic chemical vapors such as hydrogen fluoride (HF) and hydrogen sulfides (H2S), and relatively elevated levels of carbon dioxide (CO2). The release and accumulation of such gases emphasizes an in-line monitoring need. Intelligent Optical Systems, Inc. (IOS) has identified a viable approach for the development of an onboard optical sensor array that can be used to monitor battery outgassing. This paper discusses the potential of developing a battery outgas sensing approach that will meet sensitivity and response time requirements.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Manal Beshay, Jai Ganesh Chandra Sekhar, and Lothar U. Kempen "Battery outgassing sensor for electric drive vehicle energy storage systems", Proc. SPIE 8026, Photonic Applications for Aerospace, Transportation, and Harsh Environment II, 80260K (26 May 2011);

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