Thermal-Runaway-Sensor eines Energiespeicherkraftwerks

Thermisches Durchgehen (engl.thermal runaway) bezeichnet die Überhitzung einer exothermen chemischen Reaktion oder einer technischen Apparatur aufgrund eines sich selbst verstärkenden Wärme produzierenden Prozesses. Ein Durchgehen führt häufig zu Brand oder Explosion und bewirkt infolgedessen eine Zerstörung der Apparatur durch Überdruck (Zerbersten).

Why is thermal runaway detection important?

Therefore, it is also important, as a last resort, to have thermal runaway detection algorithms, to warn the battery system and users of an imminent occurrence of thermal runaway, so that the damage can be minimized. Effective approaches for thermal runaway detection often involve the use of sensors.

How can thermal runaway data be analyzed?

In addition to directly analyzing the thermal runaway data of the real vehicle, triggering the real thermal runaway or constructing a thermal runaway simulation model can also analyze the causes of the thermal runaway of the power battery.

Can gas sensors detect battery thermal runaway?

Detecting the gases released from battery thermal runaway by gas sensors is one of the effective strategies to realize the early safety warning of batteries. The inducing factors of battery thermal runaway as well as the types and mechanisms of the gases generated at each reaction stage are first reviewed.

What is thermal runaway prediction?

Thermal runaway prediction can be useful in terms of warning users of their abusive behaviors toward the battery or of any hostile surrounding environments around the battery. Thermal runaway can effectively be avoided by changing user behaviors or adjusting surrounding environments, which represent the best-case scenarios.

Why is thermal runaway modeling important?

To efficiently study and develop thermal runaway prognosis and diagnosis algorithms, thermal runaway modeling is also important. Li-ion battery thermal runaway modeling, prediction, and detection can help in the development of prevention and mitigation approaches to ensure the safety of the battery system.

What triggers thermal runaway?

Triggers for Thermal Runaway are a complex topic, as well as the thermal runaway sequence itself. The exact behavior is depending on various influences like cell chemistry, system topology and the failure origin. There is no 100 % universal thermal runaway sequence.