A full-face cushion for a patient interface that delivers breathable gas to a patient includes a frame connector adapted to attach the cushion to a mask frame and an interface provided to the frame connector. An outer edge section of the roof extends over and beyond an outside wall of the building in an outward direction. An interlayer containing a material having superelasticity or shape-memory effect is provided between an anode current collector and the anode active material layer. Multiple apertures are formed through the inner rim of the frame body to communicate with the interior space thereof.