Flexible self-powered adhesive bandage

The invention discloses a flexible self-powered band-aid. The flexible self-powered band-aid is composed of a protective layer, a dressing layer, a substrate layer and a nano generator layer which are sequentially connected from bottom to top. The protective layer is release paper; the dressing layer is PVA/MXene hydrogel; the base layer is a medical proof fabric; and the nano generator layer is used as a functional layer and is prepared from Ecoflex silicone rubber composite polyvinyl alcohol (PVA), boric acid, MXene and glycerol system hydrogel. The self-powered flexible band-aid can generate electric charge transfer through bending deformation generated by normal action of a human body, friction with clothing and the like under the condition that no extra power supply is needed, and then current is generated for real-time electrical stimulation; the self-generating band-aid is adjustable in shape and size, higher in flexibility, higher in deformation rate and capable of being closely attached to the skin;