Verfahren zur Herstellung einer elektrolytisch leitfähigen Polymerfolie als Batterietrennelement und die erhaltene Folie

摘要

The method comprises carrying out the grafting reaction by contacting a cross-linked, low density polyethylene film with a solution of a graft monomer selected from acrylic and methacrylic acid in an environment free of air and comprising a pressurized inert gas blanket. The resulting lots of polyethylene film are capable of being made with the range of electrolytic resistance values required for a variety of alkaline battery applications, while exhibiting highly uniform electrolytic resistance characteristics.