Process for forming cell cans having internal longitudinal ribs

Details Process for forming cell cans having internal longitudinal ribs Process for forming cell cans having internal longitudinal ribs

1982-03-29

1985-11-19

Gilden, Leon

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

B21D 2200

Patent

active

045534195

ABSTRACT:
The present invention provides a novel process for forming a cell can or container, for a cylindrical battery having longitudinally extending internally projecting ribs which are formed along the internal surface of the battery cell. These ribs provide increased physical and electrical contact between the cell and the electrode material disposed therein. Also disclosed herein is the product formed by this process.

REFERENCES:
patent: 2262734 (1941-11-01), Hileman
patent: 3489868 (1974-11-01), Jost
patent: 3608350 (1971-09-01), Yamaguchi
patent: 3859942 (1975-01-01), Moller
patent: 3951296 (1976-04-01), Swanson
patent: 4175416 (1979-11-01), Fukushima
patent: 4216575 (1980-08-01), Carnavos
patent: 4217771 (1980-08-01), Braun
patent: 4238949 (1980-12-01), Roper

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