Abstract: A method for manufacturing a capacitive storage element having a layer system on one side of a porous substrate, which is designed as a conductive substrate or has a conductive surface layer at least on the one side, the layer system having a layer sequence of a dielectric titanate layer and an electrically conductive layer. It is provided that to form a closed titanate layer having an adjustable minimum layer thickness, an external electrical field is applied in the direction of the layer sequence, and when the field is applied, a fluid containing titanate particles is applied to the substrate. A corresponding capacitive storage element and the use of a capacitive storage element as a storage element of an electrical energy storage unit for supplying energy to an electric drive or hybrid drive of a motor vehicle are also described.

Abstract: A method for manufacturing a capacitive storage element having a layer system on one side of a porous substrate, which is designed as a conductive substrate or has a conductive surface layer at least on the one side, the layer system having a layer sequence of a dielectric titanate layer and an electrically conductive layer. It is provided that to form a closed titanate layer having an adjustable minimum layer thickness, an external electrical field is applied in the direction of the layer sequence, and when the field is applied, a fluid containing titanate particles is applied to the substrate. A corresponding capacitive storage element and the use of a capacitive storage element as a storage element of an electrical energy storage unit for supplying energy to an electric drive or hybrid drive of a motor vehicle are also described.

Abstract: A method and apparatus for manufacturing coils made of resistance wire, wherein the coil's electrical resistance can be preselected despite variations in the resistance of the wire being used, or changes in the ambient temperature of the wire during manufacturing. The wire is supplied to a winding device through an electrically controlled wire braking element which has an electrically adjustable braking force. The resistance of at least one coil wire section is measured; the measuring signal is supplied to an evaluating configuration, wherein the actual measured resistance value is compared to a preselected desired value; and a signal is transmitted to the braking element to decrease the braking action when the measured resistance value exceeds the desired resistance value, and a signal is transmitted to the braking element to increase the braking action when the desired value is undershot.