System and method for reprocessing ultra-high molecular weight polymer film offcuts

System for reprocessing ultra-high molecular weight polymer film offcuts, in particular membrane films, such as battery separator films (BSF films), wherein the system comprises:

• a feed device;
• and
• a comminution device, wherein
• the feed device is configured to feed an ultra-high molecular weight polymer film offcut to the comminution device, and wherein
• the comminution device comprises at least one cutting screen, wherein the cutting screen comprises a plurality of cutting openings and a plurality of cutting projections, wherein at least one cutting projection spans a screen opening allocated to it, wherein
• the comminution device is configured to generate relative motion between the cutting screen and the fed polymer film offcut in order to comminute the polymer film offcut.