Metal jacket and dry cell using the same

Details Metal jacket and dry cell using the same Metal jacket and dry cell using the same

1989-03-10

1990-10-23

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

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

429 56, 429176, 220207, H01M 202

Patent

active

049651498

ABSTRACT:
An outer metal jacket for a dry cell, prepared by butting a rectangular metal plate at both side edges and joining the butted part by welding or bonding to make a cylindrical body, characterized in that a part having smaller mechanical strength is integrally provided on at least one of the upper and lower rims of the cylindrical body as a safety mechanism. When the inner pressure is increased by any reason originated from an electrochemical cell system accommodated therein, the safety mechanism is opened outwardly and the increased pressure is reduced therethrough.

REFERENCES:
patent: 3576680 (1971-04-01), Watanabe et al.
patent: 4079172 (1978-03-01), Potts et al.
patent: 4227701 (1980-10-01), Tsuchida et al.
patent: 4484691 (1984-11-01), Lees
patent: 4610370 (1986-09-01), Patterson et al.
patent: 4698282 (1987-10-01), Mantello
patent: 4722874 (1988-02-01), Marchak
patent: 4789608 (1988-12-01), Oswald

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