Button cells and method of producing same

A button cell, comprising:

• a housing, the housing including:
• a cell cup having a flat bottom area and a cell cup casing, and
• a cell top having a flat top area and a cell top casing:
• an electrode-separator assembly winding disposed within the housing, the electrode-separator assembly winding including a multi-layer assembly that is wound in a spiral shape about an axis, the multi-layer assembly including:
• a positive electrode formed from a first current collector coated with a first electrode material,
• a negative electrode formed from a second current collector coated with a second electrode material, and
• a separator disposed between the positive electrode and the negative electrode:
• and
• a first metal foil output conductor connected to the first current collector or the second current collector, wherein the first metal foil output conductor at least partially lies flat between (i) a first end face of the electrode-separator assembly winding and (ii) a first housing plane region, the first housing plane region being either the flat bottom area or the flat top area,
• wherein the cell cup casing and the cell top casing are radially overlapping along an overlap area that extends in an axial direction,
• wherein an interference fit is formed between the cell cup casing and the cell top casing in the overlap area.