摘要 |
An end cap seal assembly for an electrochemical cell such as an alkaline cell is disclosed. The end cap assembly comprises a convoluted end cap which may also function as a cell terminal and an underlying insulating sealing disk. The insulating sealing disk comprises a central boss and radially extending arm terminating in a downwardly sloped elbow and upwardly sloped peripheral edge. The end cap disk has at least one vent aperture therethrough which faces the ambient environment. The insulating disk has an annular groove in its top or bottom surface, which preferably circumvents the central boss. The base of the groove defines an a rupturable membrane portion of the insulating sealing disk. The rupturable membrane is designed to rupture, preferably when the cell internal gas pressure reaches a level between about 150 and 900 psig (1034 x 10<3> and 6206 x 10<3> pascal gage) advantageously, between about 150 and 700 psig (1034 x 10<3> and 4827 x 10<3> pascal gage). The seal may be made of nylon, polyamide, polypropylene, sulfonated polyethylene. |
申请人 |
THE GILLETTE COMPANY;YOPPOLO, ROBERT, A.;DUPREY, KEVIN;LINDSAY, THOMAS, L.;PODOPRIGORA, OLEG |
发明人 |
YOPPOLO, ROBERT, A.;DUPREY, KEVIN;LINDSAY, THOMAS, L.;PODOPRIGORA, OLEG |