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US 2026/0213313 A1Published application
Secondary cell
AssigneeNorthvolt AB
InventorsKenya SHATANI, Michael SHAUGHNESSY
Life of this patent
Estimating the term…
Abstract
A cylindrical secondary cell (10) comprising a cylindrical enclosure (11) having a lid (1), an electrode roll (20) arranged in the cylindrical enclosure (11), a current collector disc (15) to be arranged in direct electrical contact with the electrode roll (20), wherein the lid (1) or the current collector disc (15) comprises a number of recessed contact portions (2), the area of the recessed contact portions (2) being 50 to 80 percent of the total area of the lid (1), and wherein the current collector disc (15) is configured to be attached to the lid (1).
Claims16
A cylindrical secondary cell (10) comprising:
- a cylindrical enclosure (11) having a lid (1),
- an electrode roll (20) arranged in the cylindrical enclosure (11), and
- a current collector disc (15) arranged in direct electrical contact with the electrode roll (20) and configured to be attached to the lid (1),
- wherein:
- the lid (1) or the current collector disc comprises a number of recessed contact portions (2), the area of the recessed contact portions (2) being 50 to 80 percent of the total area of the lid (1) or current collector disc (15).
2 more elements
Dependencies are inferred from the claim text.