Abstract: A quality-improving method is proposed for producing an electrode, e.g. a negative electrode for lithium-ion batteries, comprising providing a carrier in the form of a foil, coating the carrier with a first coating material on at least one of the two sides of the carrier on the carrier surface, to give an adhesion layer, coating the carrier with a second coating material on the first coating material, so that the first and second coating materials each form a layered arrangement composed of a first layer of the first coating material and a second layer of the second coating material on the carrier, where the first and second coating materials used are different materials.

Abstract: Proposed is a transport device for transporting a carrier in the form of a foil for producing electrodes for energy accumulators, in particular electrodes for lithium-ion batteries, having at least two rollers on which the carrier is able to be borne, and of which at least one of the rollers is provided with a drive so as to, by rotation of the driven roller, move the carrier along the longitudinal extent thereof, and transport the carrier from roller to roller. Provided for improving the manufacturing quality is a drive device for generating an additional force which facilitates transport and which for generating an alternating magnetic field has an alternating field generator that generates a temporally changing magnetic field so as to induce eddy currents in the carrier, and so as to exert a Lorentz force on the charges flowing in the carrier as a consequence of the eddy currents.

Abstract: Proposed is a transport device for transporting a carrier in the form of a foil for producing electrodes for energy accumulators, in particular electrodes for lithium-ion batteries, having at least two rollers on which the carrier is able to be borne, and of which at least one roller is provided with a drive so as to transport the carrier from roller to roller. Provided for reducing creasing is a drive device for generating an additional force that facilitates transport, wherein the drive device for generating an alternating magnetic field has an alternating field generator which generates a temporally alternating magnetic field, the magnetic field being oriented such that, in addition to the effect of force in the transport direction, an effect of force perpendicular to the transport direction is initiated in the plane of the carrier.

Abstract: A coating device for coating a carrier with a coating is proposed, comprising a transport device for transporting the carrier during the coating process for coating the carrier on at least one side of the carrier and for transportation at least after the application of the paste to one side, and an aligning device. For particularly stable sheet guidance, the transport device comprises a supporting device for the positionally stable supporting of the carrier with regard to the direction perpendicular to the transport surface, in which the carrier lies during transport, and/or perpendicular to the transport direction, which is configured to form a mechanical constraint for the range of movement of the carrier perpendicular to the surface in the direction of the uncoated side of the carrier, in order to counteract a change in the position with regard to the direction perpendicular to the surface.

Abstract: The invention relates to a method for producing a substrate coated with a paste or dry coating, the method comprising: providing a film; providing a paste/dry coating; coating the film with the paste in order to obtain a coated substrate; and drying the paste or solidifying the dry coating on the substrate, the substrate being transported in a transport direction between its provision and the drying and/or solidification process, and the particles in the force field being oriented perpendicular to the transport direction. In order to improve the transport process, the substrate is shaped before and/or during the drying/solidification process in order to counteract tensioning of the substrate caused by shrinkage of the coating.

Abstract: A method of dry coating of surfaces of a carrier and/or of production of self-standing layers, especially for use in lithium ion batteries having improved properties, is proposed, wherein the coating is effected at least by means of a particle-comprising powder in the dry state, especially having a solvent content of less than 1% by weight, and alignment of the particles is conducted in order to reduce the ionic resistance of the powder layer. The alignment of the particles additionally comprises fluidization of the powder.

Abstract: The invention relates to a method for orienting particles in a paste, comprising: providing the paste, which comprises particles that can be oriented in the paste, wherein the paste comprises, in particular, carbon-based particles, preferably graphite, and/or a volatile substance, and exposing the paste to the influence of a force field such that the particles experience a force due to the interaction with the force field, by means of which the particles are oriented relative to the field lines of the force field. For cost savings and improvement to productivity, the paste is heated in order to at least temporarily reduce the viscosity of the paste and to reduce the orientation time required for orienting the particles in the force field, wherein the paste is heated before exposing and/or while exposing the paste to the influence of the force field.