| abstract |
A membrane electrode assembly according to the present disclosure includes an electrode, an electrolyte layer bonded to the electrode and containing an electrolyte having proton conductivity, a metal frame, and a bonding layer disposed between a peripheral part of the electrolyte layer and the metal frame and held in contact with each of the electrolyte layer and the metal frame, wherein the bonding layer has a thickness of greater than or equal to 0.50 mm. |