What are the benefits of foam insulating a cell?

The foam is engineered to be heat-absorbent and flame-resistant, protecting adjacent cells from going exothermic and helping to mitigate the propagation of a thermal event from one cell to another. It is also electrically insulating, preventing arcing within modules. Typical properties include:

What makes dielectric foam a good elastomer?

In the place of vulnerable elastomer materials are dielectric foams engineered with a predictable compression force deflection (CFD). This allows them to deliver consistent return energy over a wide range of compression amounts and temperatures throughout battery pack life.

Why is TRP foam a good thermal insulator?

The foam’s low compression set value also translates to the ability to resist permanent deformation under compressive loads. At the same time, the foam serves not only as a temperature-resistant thermal insulator, but as a thermal runaway protector as well — hence the “TRP” referenced in the name of the product line.