Electrolyte sensors detect First Vent

They are in stock at authorised distributor DigiKey.

Utilizing an advanced and patented rate-of-change algorithm, the BES detects battery electrolyte vapour commonly released during the initial venting phase called First Vent, as well as hydrogen and carbon monoxide gases released during a thermal runaway event.

The ability to detect the First Vent provides an essential early warning for potential thermal runaway incidents in lithium-ion battery packs. This proactive early detection facilitates timely and appropriate mitigation measures, significantly reducing the risk of thermal runaway.

BES employs a patented advanced rate-of-change algorithm designed to identify significant changes in the concentration of target gases within a sealed battery pack. This innovative method effectively reduces the occurrence of false negatives that may be seen with conventional ppm-based sensors, which focus on precise target gas threshold monitoring.

The algorithm is tuned to prevent false positives, improving the end-user experience. Furthermore, the algorithm is supported by more than twelve years of rigorous research and validated through seven years of practical field deployment.

The sensors are resistant to siloxane poisoning and compatible with all lithium-ion battery chemistries and cell types.

They are tested for a performance life of 15 years

Applications cover sealed lithium-ion battery packs, modules used in electric and hybrid vehicles and other on-road applications