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 top having a flat top area;
• 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;
• 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;
• an insulator disposed between the first end face of the electrode-separator assembly winding and the first metal foil output conductor;
• and
• a winding core around which the multi-layer assembly is wound, the winding core providing a contact pressure on the first metal foil output conductor in an axial direction to facilitate electrical contact between the first metal foil output conductor and the first housing plane region.