Abstract: A process for coating a carrier material with an active material for production of an electrode foil of a battery cell with a Laval nozzle, wherein the Laval nozzle has at least one converging first portion, one second portion having a smallest flow cross section, and one diverging third portion arranged one after the other along a flow direction.

Abstract: Technologies and techniques for the dry manufacture of an electrode. A substrate is provided, and a primer material is dispensed on the substrate to provide a primer layer on the substrate, dispensing an electrode material on the primer layer and attaching the electrode material via pressure and/or temperature to provide an electrode material layer.

Abstract: A process for coating a carrier material with an active material for production of an electrode foil of a battery cell with a Laval nozzle, wherein the Laval nozzle has at least one converging first portion, one second portion having a smallest flow cross section, and one diverging third portion arranged one after the other along a flow direction.

Abstract: A method for the production of an electrode powder mixture for a battery cell includes filling an active material, a binder and a conductive additive into a filling section of a machine that has a driven screw which extends in the lengthwise direction and which serves for thoroughly blending and conveying a powder in the lengthwise direction. The screw blends the binder, the active material and the conductive additive in order to form a first powder, and the screw makes a second powder out of the first powder in that the binder is fibrillated. The screw produces the electrode powder mixture out of the second powder in that the fibrillated binder is comminuted, and the electrode powder mixture is removed from the machine at a removal opening, whereby the removal opening is at a distance from the filling section in the lengthwise direction.

Abstract: A method is described for the treatment of used batteries, in particular lithium batteries, containing the steps: comminuting the batteries such that comminuted material is obtained, inactivating the comminuted material such that inactivated comminuted material is obtained, and filling a transport container with the inactivated comminuted material. The inactivation is performed by drying the comminuted material, and the comminuted material is dried until an electrolyte content is so low that an electrochemical reaction is not possible.

Abstract: The invention relates to a method for the treatment of used batteries (10), in particular lithium batteries, containing the steps: comminuting the batteries (10) such that comminuted material (24) is obtained, inactivating the comminuted material (24) such that inactivated comminuted material (42) is obtained, and filling a transport container (46) with the inactivated comminuted material (42). It is provided according to the invention that the inactivation is performed by drying the comminuted material (24) and the comminuted material (24) is dried until an electrolyte content is so low that an electrochemical reaction is not possible.