Manufacturing method of fuel cell, and fuel cell

A manufacturing method of fuel cell which is a method for manufacturing a fuel cell having a first electrode in which first slits are formed and a second electrode in which second slits are formed, comprising:

• a slit formation process in which slits are formed in any one of the first electrode and the second electrode;
• an electrolyte membrane lamination process in which an electrolyte membrane is laminated on the one electrode;
• an IC formation process in which interconnector portions are formed on the electrolyte membrane;
• an electrode lamination process in which the other one of the first electrode and the second electrode in which the slits are formed is laminated on the electrolyte membrane so that the electrolyte membrane is sandwiched between the first electrode and the second electrode;
• and
• a side edge portion removal process in which side edge portions of the first electrode and the second electrode are removed to divide the first electrode into a plurality of parts via the first slits and to divide the second electrode into a plurality of parts via the second slits.