Batteries in e-cars must be enclosed in such a way that occupants are protected in the event of an impact. In the special composition of self-extinguishing high-performance textiles combined with a high-temperature resistant reflective coating system, we have succeeded in achieving a high level of safety and heat reduction on the battery cell carrier. Our Heatshield can be customized in a variety of designs. With a material thickness of <2mm it meets the requirements of the automotive industry.