Electrically heatable heating disk

An electrically heatable heating disk for use within a device for the aftertreatment of exhaust gas, the heating disk comprising:

• a layer stack formed from a plurality of coarsely structured metal foils and a plurality of finely structured or smooth metal foils, which are alternately arranged, and are stacked one on top of the other, and the layer stack being wound to form a honeycomb body;
• and
• at least one electrical contact arranged at a radial end region of the honeycomb body;
• wherein the plurality of coarsely structured metal foils terminate with an offset with respect to one another as a result of the winding in the circumferential direction of the heating disk, and the plurality of finely structured or smooth second metal foils extend in the circumferential direction beyond the respective ends of the plurality of coarsely structured metal foils;
• wherein a portion of each of the plurality of finely structured or smooth metal foils, which protrudes in the circumferential direction beyond the respectively directly adjacent plurality of coarsely structured metal foils, include a material thickness which is increased in comparison with the rest of the extent of the respective finely structured or smooth metal foil, and
• wherein the portion of each of the plurality of finely structured or smooth metal foils which includes the material thickness which is increased begins directly before the termination of the respective directly adjacent plurality of coarsely structured metal foils.