Inwardly indented edge electrode assembly

Details Inwardly indented edge electrode assembly Inwardly indented edge electrode assembly

1989-04-05

1990-10-16

Walton, Donald L.

Chemistry: electrical current producing apparatus, product, and

Plural concentric or single coiled electrode

296231, H01M 610

Patent

active

049634461

ABSTRACT:
Protruding exposed edges of the foil carrier of an electrode in a jelly roll cell are specially indented inwardly at intervals to facilitate placement of an insulator ring at the top of the cell after insertion of the electrode in the container. Effective insulation of the exposed carrier edges from the container wall and good continuity of contact to the pressure contact means are achieved by the radial indenting of the axial ends of the exposed foil edges toward the axial center at intervals on at least a significant number of the outer turns of the foil coil to form sloped vallues and intermediate sloped ridges between said valleys, said outermost turns of the foil edges being pushed together at said valleys and spaced at said ridges.

REFERENCES:
patent: 3695935 (1972-10-01), Cromer
patent: 4529675 (1985-07-01), Sugalski

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