Valve plug

A sealing plug arrangement (1, 2) for a rechargeable battery, with the sealing plug arrangement having at least a plug part (1) and a plug holder (2), the plug holder (2) having a hollow region (4) for accommodating at least one holding section (5) of the plug part (1), with the plug part (1) being designed to seal off at least one interior (73, 74) of the rechargeable battery from the surrounding area when said plug part is fitted in the hollow region (4) of the plug holder (2), characterized in that the plug holder (2) has at least one flow channel (6) on its inner circumferential surface in the hollow region (4), said flow channel being arranged between the outer circumferential surface of the at least one holding section (5) of the plug part (1) and the inner circumferential surface of the plug holder (2) and extending at least along that region in which the plug part (1) is held in the plug holder (2) when said plug part is fitted in the hollow region (4) wherein the plug part (1) has a cutout (12) on its upper face in the region of an overpressure prevention region (7), opposite from the holding section (5).