The leading system for the early detection of outgassing events.
The Li-ion Tamer is the leading system for the early detection of outgassing events in lithium-ion batteries. On average, small amounts of electrolyte vapors are released several minutes before thermal runaway. These are reliably detected and reported, providing you with the all-important:
The primary measure consists of activating the battery management system and switching off the power supply to the affected batteries. A further rise in temperature in the battery cells can thus be prevented at an early stage and kept below the thermal runaway threshold.
In addition, further preventive measures can be activated, such as ventilation systems to extract toxic and flammable substances from the area to be protected. Degesa uses the Li-ion Tamer as the important first stage in its three-stage fire protection concept for lithium-ion battery storage systems.
The Li-ion Tamer is currently the only system of its kind and is already in use worldwide.
Conventional detection methods such as smoke aspiration systems or smoke detectors can only emit an alarm at the moment of thermal runaway, as the smoke development in lithium-ion batteries only begins with increasing heat development and the decomposition of the battery chemistry. An alarm is therefore only triggered at a point where the temperature has already risen to such an extent that ignition and thermal runaway are highly probable.
Small amounts of gas are released 11-12 minutes before the temperature of the battery cell is high enough for smoke to develop. The gas mixture is mainly caused by the decomposition of the electrolyte material and depends on the electrolyte material used and the state of charge of the cell. For this reason, the “outgassing” cannot be reliably detected with conventional gas detectors. The Li-ion Tamer is the only system of its kind and is specially adapted to the potential gases in lithium-ion batteries.
The state-of-the-art sensors of the Li-ion Tamer have been specially developed for the possible gases in outgassing events of lithium-ion batteries. By using reference sensors, the system is completely calibration-free. In addition, the Li-ion Tamer offers comprehensive monitoring functions such as multi-point temperature and humidity measurements. Through improved environmental control and situational awareness, the system contributes to the overall safety of battery storage systems.
The number of sensors required depends on the design and insulation of the modules. Ventilation systems must be taken into account during project planning, as these and the resulting air flow influence the accumulation of gases. Due to the high sensitivity of the Li-ion tamer sensors (< 1 parts-per-million per second), the number of sensors can be reduced through clever positioning. The entire system is wired with RJ45 cables and requires minimal installation and maintenance.
Adjustments can be made to the system at any time, e.g. if it is expanded or modified. Currently, up to 100 sensors can be evaluated via one controller with the Gen³ of the Li-ion Tamer. With future system variants, it will be possible to expand a system to up to 500 sensors per controller.