Cap assembly of battery

Details Cap assembly of battery Cap assembly of battery

1998-10-02

2000-09-12

Nuzzolillo, Maria

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Cell enclosure structure, e.g., housing, casing, container,...

H01M 204

Patent

active

061175862

ABSTRACT:
A cap assembly of a battery, comprising: a cap plate for covering the upper portion of a battery case; a positive terminal installed on the cap plate, insulated from the cap plate; a rivet member having a rivet protrusion, through which a vent hole is formed, inserted through holes formed in the cap plate and the positive terminal for riveting them together, the rivet member electrically connected to the positive terminal; a safety member installed at the lower end of rivet member, blocking the vent hole; and a positive tap fixing member attached to the lower end of the safety member and joined to a positive tap of an electrode assembly in the battery case, wherein the safety member is ruptured and separated from the positive tap fixing member by an internal pressure increase of the battery case.

REFERENCES:
patent: 3615868 (1971-10-01), Melone
patent: 3915752 (1975-10-01), Gross
patent: 3992226 (1976-11-01), Godshalk
patent: 4098963 (1978-07-01), Mocas
patent: 4186247 (1980-01-01), Mocas
patent: 4562127 (1985-12-01), Mangone
patent: 4978592 (1990-12-01), Dattilo
patent: 5532075 (1996-07-01), Alexandres
patent: 5588970 (1996-12-01), Hughett
patent: 5609972 (1997-03-01), Kaschmitter et al.

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