TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: The plastic material surrounding the reinforcing component has a lower thermal conductivity than the reinforcing component. The reinforcing component is made of metal, preferably a metal sheet, which has an arcuate shape in an expanded state. The metallic reinforcing component is a spring elastic metal component made of spring steel or an elastic aluminum alloy. The pressing element comprises at least one spring elastic leg formed from the plastic material surrounding the reinforcing component. The spring elastic leg is formed at a flat angle to the outer side of the vehicle battery. The spring elastic leg exhibits areas with heterogeneous resistance torque to influence a more uniform deformation of the spring elastic leg during the strain. The reinforcing component is heterogeneously designed with respect to its cross-sectional path and areas of different thickness of plastic extrusion coating (35) are provided. The pressing element has at least one receiving portion for receiving the coolant line. The coolant line is designed flat with an upper side complementary to the adjacent outer side of the vehicle battery, in which the cross section of the coolant line has a width, which is preferably greater than its height. At least one thermal insulation component is connected to the pressing element and forms an insulating oil-cooled outer side of the battery. 35-70% Cooled outer side of the vehicle battery is contacted by coolant lines. The housing of the vehicle battery comprises recesses and/or projections, which influences the positioning of the cooling device, preferably the pressing elements relative to the housing. The reinforcing component is punched from a sheet and is preferably transformed into an arcuate shape. The composite component is produced by extrusion, where the reinforcing component is insert molded in an extrusion die with the plastic material. The reinforcing component is coated with a primer prior to the combination with the plastic material.