Electrode manufacturing device

An electrode manufacturing device comprising:

• a pressing roll configured to apply pressure to an uncoated part of an electrode,
• wherein the pressing roll comprises a central part, a first end part and a second end part,
• wherein the uncoated part comprises an insulating coated part and a non-insulating coated part,
• wherein the first end part is adjacent to a boundary between the insulating coated part and the non-insulating coated part,
• wherein the second end part is located at a portion far away from the insulating coated part,
• wherein a first outer diameter of the central part connected to the first end part is greater than a second outer diameter of the central part connected to the second end part, and
• wherein the first end part and the second end part are decreased in outer diameters toward an outside from the central part.