Connecting pole for a rechargeable battery, rechargeable battery housing and machine for producing a connecting pole

A connecting pole for a rechargeable battery, the connecting pole comprising:

• a connecting section, an attachment section, and a labyrinth section;
• an outer wall surrounding a cavity arranged for introduction of a pole body, and
• an inner wall within the cavity, the entire inner wall having a smooth surface;
• wherein a portion of the outer wall is interrupted a plurality of peripheral projections, a peripheral projection from the plurality of peripheral projections having an undercut flange.

A connecting pole and housing assembly for a rechargeable battery, the assembly comprising:

• a connecting section, an attachment section, and a labyrinth section;
• an outer wall surrounding a cavity arranged for introduction of a pole body, and an inner wall within the cavity, the entire inner wall having a smooth surface;
• wherein a portion of the outer wall is interrupted a plurality of peripheral projections, a peripheral projection from the plurality of peripheral projections having an undercut flanged region;
• and
• wherein a connecting pole is embedded in a material of the rechargeable battery housing, the material being provided, within the flanged regions, such that a good seal is obtained.