EV Battery Foams extend the battery pack life
Dielectric foams can accommodate the dimensional changes and variances of the battery cells but deliver enough pressure to the cell package to prevent misshaping and disconnections. The foam has a spring-like characteristic, but is in fact better than a spring. The more a spring deflects, the higher the potential return energy. But foams can be engineered to deliver the same, consistent return energy across a wide range of compression amounts, a property known as compression force deflection (CFD). Springs are also thermally and electrically conductive and can create hard spots in the battery.
EV Battery Foams
Battery Thermal Runaway Protection