Our module integrated safety features enable the highest safety standards in relation to energy density through:
In exceedingly rare cases, defects in a cell can lead to degassing. If this degassing takes place under extreme conditions, the cell may ignite (the so-called thermal runaway). This is investigated in extreme tests of our batteries. It is our clear goal that, in such a case, the fire will not spread and the battery will not catch fire, so we ensure the safety of the vehicle passengers. Due to our unique safety mechanisms, propagation is completely avoided.
The modular design guarantees a controlled degassing of a defective cell. This is the only way to avoid escalation and, thus, the propagation of fire.
Our contact elements between the cells are designed in such a way that, in the event of a cell short circuit, it is separated from the cell combination and no consequential damage can be caused by high short-circuit currents.
Lower total energy content of single cell ensures highest safety in case of fire and damage compared to other cell formats commonly used in e-mobility.
Many battery manufacturers in the automotive sector use pouch or prismatic cell formats. Our philosophy at Kreisel is to keep the amount of energy per cell small, so that in the very rare case of an cell defect, no large amounts of energy are released in the form of explosions. This is one of the important reasons why we use cylindrical cells.
The cooling liquid in our battery modules has another important task: In the rare event of a defect, it cools down the environment of an escalated cell and thus prevents it from propagating. In addition, it is highly flame-retardant, which can be of great importance in the event of an accident.