Honeywell has released a new electrolyte detector specifically designed for sealed portable lithium-ion battery packs.
The new Battery Safety Electrolyte Detector (BES LITE) is designed for non-automotive applications that require a cost-effective, low-profile, small-footprint battery safety sensor, including battery energy storage systems, unmanned aerial vehicles, electric two-wheelers and three-wheelers, and portable battery applications.
Fires in Li-ion batteries are primarily caused by thermal runaway—a process by which the battery’s temperature increases in a self-accelerating cycle, ultimately leading to fires and explosions. This can occur due to factors such as overcharging or internal short circuits, which can cause the battery separator to melt, leading to initial heat generation. As the temperature rises, the electrolyte vaporizes, releasing hazardous vapors.
BES LITE uses Honeywell’s proprietary gas sensing technology to selectively detect battery electrolyte vapor, providing an advance warning of potential thermal runaway. It is designed to detect gases typically released during the initial phase of thermal runaway as well as throughout the entire thermal runaway process.
BES LITE is highly resistant to siloxane poisoning and selectively responds only to battery electrolyte vapors. This ensures early and reliable detection of battery electrolyte vapors without false alarms, says Honeywell, making it an ideal battery safety sensor for critical applications.
Source: Honeywell Sensing Solutions
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