Batteries are an integral part of our everyday lives. However, these energy storage devices pose significant risks in the event of a fire. If the battery of an e-vehicle overheats, it can reach a temperature of more than 1000°C for a short time and thus poses an extreme danger to people and the environment. Thermal runaway of a cell and thermal propagation are among the biggest safety challenges in lithium-ion battery operation. In the special composite of selected self-extinguishing high-performance textiles developed specifically for this heat protection application and combined with a high-temperature resistant reflective coating system, textile engineers have succeeded in achieving a high level of safety and heat reduction on the battery cell carrier. Cell phone batteries that ignite also quickly become a threat inside an aircraft. Here, REX technical textiles ensure the integrity of the environment. These specialised technical textiles can also be used in special transport boxes for batteries in airplanes or e-bike batteries, thus protecting people and the environment.