Honeywell’s Battery Safety Electrolyte Sensor (BES) provides early and reliable thermal runaway detection in lithium-ion batteries used in electric vehicles (EVs).
By detecting electrolytes released during the crucial first vent stage, the BES sensor is critical in preventing thermal runaway, enabling vehicles to meet international safety standards such as UN GTR 20, China GB38031, and US NHTSA FMVSS 305A.
Sensitive to electrolytes, hydrogen (H2), and carbon monoxide (CO) released during thermal runaway, the sensor features a patented alarm algorithm to ensure that critical alerts are never missed.
The BES is resistant to siloxane poisoning and supports diagnostic capabilities through its Automotive Product Grade CAN 2.0B output. It is also ASIL B-rated, further reinforcing its reliability for automotive applications.
The BES integrates seamlessly into battery packs, enabling communication with the Battery Management System (BMS) to enhance safety and operational reliability for every journey.
Features:
- Detects electrolytes released during the first vent (before thermal runaway)
- Responsive to H2 and CO released during thermal runaway
- Patented alarm algorithm ensures reliable alerts
- Resistant to siloxane poisoning
- Automotive-grade product with CAN 2.0B output and diagnostic features
The sensor can also monitor pressure (customizable) and temperature, offering comprehensive detection capabilities to support the evolving safety demands of EV battery systems.
Filed Under: BMS, Technology News