Metal supported seals for galvanic cells

Details Metal supported seals for galvanic cells Metal supported seals for galvanic cells

H - Electricity

01

M

319/109

H01M 2/08 (2006.01) H01M 2/04 (2006.01) H01M 2/12 (2006.01)

Patent

CA 1236161

METAL SUPPORTED SEALS FOR GALVANIC CELLS ABSTRACT In a sealed cell having an anode, a cathode, and a cylindrical can into which the principal components of the cell are assembled, a sealing and insulating plastic member (seal) is provided at the open end of the can, and is held in sealing relationship with the can by a crimp forced over the top edge thereof. The seal may be formed so as to have a downwardly depending skirt in its lower portion; generally in the manner of a plurality of leg-like projections, usually three. Across the upper surface of the member, and over an upwardly directed and centrally located nail boss in the upper surface, there is placed a metal disc having a centrally located opening which is in interference fit with the outside periphery of the nail boss, and having a passage formd therein for pressure equalization of the space between the plastic body and the metal disc to the outside of the cell. There is an upwardly extending skirt formed around the outer periphery of the member. The seal and insulating member may be snap-fitted into either a stepped can or a beaded can.

466034

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