Honeywell Announces New Battery Electrolyte Sensor

Honeywell is excited to announce the release of its next generation of battery safety sensor in the evolving landscape of electric vehicles—the Battery Safety Electrolyte Sensor (BES) series. This advanced sensor is a significant addition to Honeywell’s battery safety sensor portfolio, designed specifically for enhanced safety in lithium-ion battery on-road applications. 

In light of the ongoing energy transition, industries across the board, including on-road vehicles and heavy-duty equipment, are increasingly dependent on lithium-ion batteries. While these batteries play a crucial role in powering the future, they are not without risks, particularly when exposed to thermal, electrical, or mechanical stresses, including manufacturing defects. 

Figure 1: BES Sensor

The Battery Safety Electrolyte Sensor (BES) has been engineered to address these safety concerns head-on. Utilizing our proprietary Li-ion Tamer™ electrolyte gas detection technology, the BES is capable of identifying “first vent” events. These events serve as early warning signs of potential battery malfunctions, enabling the system to issue alerts 5 to 20 minutes prior to a risk of fire. Such early detection is vital for ensuring both vehicle safety and the well-being of passengers and drivers alike. Designed with automotive application, the BES series not only meets but exceeds industry standards for performance and reliability. The sensors incorporate the CAN communication protocol, facilitating seamless integration and ease of use for design engineers aiming to enhance the safety features of their vehicles. 

As we continue to innovate in the realm of battery safety, Honeywell remains committed to providing advanced solutions that empower industries and improve safety standards worldwide. We look forward to seeing the impact of the Battery Safety Electrolyte Sensor across electric vehicle applications and beyond. For detailed technical information, please reach out to your Honeywell representative 

About Battery Safety Electrolyte Sensors

 The Battery Safety Electrolyte Sensor (BES) series enhances reliability in battery health monitoring by detecting multiple gases released during thermal runaway, which minimizes the risk of false negatives. Its uncomplicated integration process is facilitated by a rate of change algorithm, eliminating the need for meticulous target gas threshold testing. Consequently, this feature not only reduces integration costs but also shortens project timelines, making the BES an invaluable asset for ensuring battery safety. 

Furthermore, the BES sensor is equipped with dual operating modes, the sensor can be switched between ECO Mode and NORMAL Mode via CAN commands. In ECO Mode, power consumption is significantly reduced by 60%, as CAN communication is disabled; however, it automatically reverts to NORMAL Mode to send alarm signals to the Battery Management System (BMS) in the event of an alarm condition. In NORMAL Mode, the sensor operates at full functionality with active CAN communication. 

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