As the climate issue has affected most vehicle manufacturers, the number of electric cars in the world has increased in recent years. Scania's goal is that by 2030, 50 % of all their trucks sold in Europe will be powered by electricity. There are currently legal requirements for how transportation of batteries by road is allowed, depending on if the batteries are damaged, defective or prototype batteries. Scania currently has a method to transport these batteries. The working method consists of a safety box that is filled with the packing material Pyrobubbles in which the batteries are placed. However, Scania wants a better understanding of the function of Pyrobubbles, the safety box and its advantages and disadvantages, as well as whether there are better solutions. The work therefore intends to sort out these issues. In addition to reviewing the thermal properties of the materials, the work has been carried out from a SHE perspective on Scania’s request. This means that safety, health and the environment are taken into account. A literature study was conducted to investigate which alternative packaging materials were available as option to Pyrobubbles, as well as other manufacturers that are available for the safety box. Seven different packaging materials have been examined in the report, these are; absol, sorbix, vermiculite, sand, Pyrobubbles, glass- and stone wool. Two experimental studies were performed to investigate the properties of packing materials. All materials were tested in the cone calorimeter as three different experimental setups; dry, damp and inside a rust protection bag. Two full-scale experiments were also carried out where Pyrobubbles and rockwool were tested as packing material. In addition, a bow tie was created regarding the handling of packing material and an investigation of the ergonomics was conducted. The rust protection bag that is currently used at Scania to facilitate the packaging of Pyrobubbles contributes to unwanted heat release. The lowest heat release and best insulation capacity were measured for the sand. However, the sand is unmanageable to work with as it has a high density and contains carcinogenic particles. Rockwool is considered a good alternative to Pyrobubbles, which partly facilitates the work situation for employees and is also more accessible than Pyrobubbles. In order for rockwool to be accepted as a packing material, a certification of packing material and safety box must be done together, which applies to all new solutions. Keywords: Pyrobubbles, Lithium-ion battery, battery safety, ADR-S