END CAP ASSEMBLY FOR AN ALKALINE CELL

摘要

An end cap assembly (10) for sealing the open end of a small diameter cylindrical alkaline cell housing (70) comprises a terminal end cap (200), an insulating sealing disk (150) underlying said end cap, and an elongated current collector (80) penetrating through an aperture in said insulating sealing disk (150). At least a portion of the insulating sealing disk (150) lies within the cell housing (70). The terminal end cap (200) has peripheral edge (222), preferably formed from a curved rib (215), which is locked within the peripheral edge (155) of the insulating sealing disk (150). The end cap assembly (10) does not require other metal disks held within the sealing and insulating disk. The insulating disk (150) comprises a discontinuous skirt (157) comprising a plurality of integral legs emanating downwardly into the cell interior from the peripheral edge (155) of said insulating disk. The insulating sealing disk (150) has an integrally formed rupturable membrane (152) therein.