Closed type alkaline storage battery

Details Closed type alkaline storage battery Closed type alkaline storage battery

1979-02-27

1980-06-10

Walton, Donald L.

Chemistry: electrical current producing apparatus, product, and

Means externally releasing internal gas pressure from closed...

Blowout type

H01M 212

Patent

active

042073855

ABSTRACT:
The alkaline storage battery employs a metallic hat shaped terminal closure which has a piercing needle as well as a puncturable metallic diaphragm positioned below the piercing needle. The needle is fixed by caulking at its peripheral edge portion to a edge of the closure. A comparatively thick and hard metal plate is placed on the inner surface of the diaphragm and is applied to an open portion of a tubular metallic container which has a battery element. A peripheral edge portion of the closure, the diaphragm and the metallic plate are clamped in airtight relationship through a packing between the caulked end portion and an inner annular step portion of the metallic container of the battery. A lead wire extends from one polarity electrode of the battery element and is connected to a central portion of the metallic plate.

REFERENCES:
patent: 3214300 (1965-10-01), Nordvik
patent: 3262819 (1966-07-01), Belove
patent: 3556863 (1971-01-01), Nathe
patent: 3909303 (1975-09-01), Rosansky et al.

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