Method and device for cutting electrode foils

A method for cutting electrode foils that are intended for use in a battery cell, wherein the method is carried out with a cutting device which comprises a nozzle with an outlet, a cutting device, a vibration device, a particle feed line, and a gas feed line, and comprises the following steps:

• a) providing an electrode foil with a surface;
• b) arranging the cutting tool and outlet over the electrode foil with a separation from the surface;
• c) introducing a first gas stream from the gas feed line into the cutting device;
• d) introducing particles from the particle feed line into the cutting device;
• e) mixing the first gas stream and at least the particles in the cutting device to form the particle stream;
• f) exciting at least the cutting tool or, additionally, the nozzle to vibration by means of the vibration device;
• g) applying the particle stream emerging from the outlet to the electrode foil;
• and
• h) applying the vibrations of the cutting tool to the electrode foil via at least one particle that is interposed between the cutting tool and the electrode foil, whereby the electrode foil is cut.