Safety

Our module integrated safety features enable the highest safety standards in relation to energy density through:

Outstanding prevention of fire propagation

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 go on fire, because we guarantee the safety of the vehicle passengers in every, even theoretical and rare case. Due to our unique safety mechanisms, propagation is completely avoided.

Controlled degassing in case of very exceptional cell damage

The module design guarantees a controlled degassing of a defective cell. This is the only way to avoid escalation and thus the propagation of fire.

Single cell fuse ensures fast disconnect of failing cells

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 compound and no consequential damage due to high short circuit currents can occur.

Lower total energy content on single cell ensures highest safety in case of fire and damage compared to other cell formats commonly used in the 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.

Use of fire-retardant liquid cooling agent increases safety standard

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 very flame-retardant, which can be of great importance in the event of an accident

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