The element (1) has a hollow body provided with apertures (10, 11) such that a channel is formed in the hollow body. The channel opens the opening in opposite end portions. A periphery of a reservoir space (13) is greater than circumference of underlying p...

The part has a closure stopper comprising charging holes (2) to be locked for filling liquid electrolytes into a housing. The charging holes are arranged in two adjacent rows (8, 9) and offset to each other. The charging openings are interconnected through...