Spiral-wound galvanic cell

Details Spiral-wound galvanic cell Spiral-wound galvanic cell

1989-11-15

1991-06-04

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Plural concentric or single coiled electrode

429178, H01M 230

Patent

active

050213067

ABSTRACT:
A spiral-wound galvanic cell is based upon a lithium system with a nonaqueous electrolyte, and includes a positive electrode, the carrier of which is clamped within the slit of a simple metal splint which serves as the winding mandrel and current collector. Contact with the metal splint is established by a leaf spring associated with the housing cover, which then serves as the positive terminal post for the cell. A high specific contact pressure is developed at this connection by providing the leaf spring with a punched hole which rests on thicker top portions of the metal splint. A small metal plate pressed through the lithium electrode and its separator establishes electrical contact between the lithium electrode and the interior wall of the housing vessel, which then serves as the negative cell pole.

REFERENCES:
patent: 3212935 (1965-10-01), Reilly et al.
patent: 3775182 (1973-11-01), Patton et al.
patent: 3796606 (1974-03-01), Lehmann et al.
patent: 4091181 (1978-05-01), Merritt, Jr.
patent: 4259416 (1981-03-01), Ikeda et al.
patent: 4709472 (1987-12-01), Machida et al.

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