Fuel cell

A fuel cell comprising:

• a membrane electrode gas diffusion layer assembly including a membrane electrode assembly;
• a sheet member that holds the membrane electrode gas diffusion layer assembly;
• and
• an adhesive layer that adhesively connects the membrane electrode assembly and the sheet member to each other, the adhesive layer being provided at an outer peripheral portion of the membrane electrode assembly, wherein
• the adhesive layer includes a first adhesive part and a second adhesive part positioned on opposite sides of a power generation region of the membrane electrode assembly,
• the first adhesive part and the second adhesive part are located on a lower side and an upper side respectively with respect to the power generation region in a use situation of the fuel cell, and
• in the use situation, the first adhesive part has a width in an upper-lower direction larger than a width of the second adhesive part in the upper-lower direction.