+49 (0)30 84 41 49 80
anfrage@degesa.deLi-ion Tamer
The leading system for the early detection of outgassing events.
What is the Li-ion Tamer?
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:
A prevention time window in which worse can still be prevented.
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.
A prevention time window to prevent the worst from happening
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.
Detection methods in comparison
Operating principle of the Li-ion Tamer
A Li-ion Tamer GEN3 system is a very flexible solution for lithium-ion batteries. The system typically consists of:
- Monitoring sensors that are mounted close to the respective batteries, usually directly in the upper part of the module rack.
- Reference sensors to avoid false-positive messages. The system is calibration-free.
- Hubs and Ethernet switch to combine the individual signals
- Controller to evaluate the data & control other systems
The Li-ion Tamer GEN3 system requires minimal operation and maintenance and has a comparable service life to a battery storage system. The reaction of the gas sensors and the correct activation of preventive measures can be checked with a simple test.
Important:
The Li-ion Tamer detects the escape of electrolyte vapors from lithium-ion batteries and can trigger appropriate prevention and/or containment measures. It therefore only indirectly prevents fires and thermal runaway and is not an independent safety device.
Technical specifications of the Li-ion Tamer
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.
Scalability
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.
360° fire protection for lithium-ion battery storage systems
Degesa uses the Li-ion Tamer as the first of three stages in its fire protection concept for lithium-ion battery storage systems.
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+49 (0)30/84 41 49 80
anfrage@degesa.de