Terminal part for a secondary cell
AssigneeNorthvolt AB
InventorDongho SON
Life of this patent
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Abstract
The present disclosure relates to a terminal part for a cylindrical secondary cell. The terminal part comprises a shaft configured to extend axially through a casing of the secondary cell, wherein a first end of the shaft is configured to provide an electrical connection with an electrode roll in the secondary cell; and a head arranged at a second end of the shaft, configured to form an external terminal for the cylindrical secondary cell. The shaft comprises a ridged shaft portion on a lateral surface of the shaft, wherein said ridged shaft portion comprises at least one ridge extending around the lateral surface of the shaft.
Claims18
1-19. (canceled)
A terminal rivet (100) for a cylindrical secondary cell comprising:
- a shaft (110) configured to extend axially through a casing of the secondary cell, wherein a first end of the shaft is configured to provide an electrical connection with an electrode roll in the secondary cell;
- and
- a head (120) arranged at a second end of the shaft, configured to form an external terminal for the cylindrical secondary cell,
- wherein:
- the shaft (110) comprises a threaded shaft portion (114) on a lateral surface of the shaft (110), and
- said threaded shaft portion (114) comprises at least one ridge extending helically around the lateral surface (110b) of the shaft (110).
Dependencies are inferred from the claim text.