DEVICE AND METHOD FOR COMPACTING ELECTRODE MATERIAL APPLIED TO A COLLECTOR BELT

摘要

A method for compacting electrode material (120) applied to a collector strip (110) is known. For this purpose, the electrode strip is guided through a compression gap (20) in a conveying direction (2) parallel to the longitudinal direction of the electrode strip, which compresses the electrode material (120). At least one free area (112), in which no electrode material (120) is provided, is subjected to a force in the longitudinal direction in order to cause the collector strip to stretch in the free area, in order to compensate for an elongation of the collector strip in the area of the electrode material caused by the compression .It is proposed that the collector belt (110) is stretched in the longitudinal direction in at least one free area (112) in that the collector belt in the conveying direction (2) behind the compression gap (20) by means of at least one conveyor roller (62) acting on the free area force is applied and at the same time is held back in the conveying direction in front of the compression gap (20) by a braking device (40) acting on the free area (112), so that the collector belt (110) in the free area (112) between the braking device (40) and the conveying device (50) is placed under tensile stress and thereby a plastic strain in Is effected longitudinally in the free area (112).