▎ 摘　　要

NOVELTY - Self-powered elastic sensing fiber with sheath-core structure comprises an outer sheath and an inner core coated covering the inner core. USE - The self-powered elastic sensing fiber is useful in smart wear (claimed) for constructing skin-core structure by outer layer winding method. Can also be used in human body sensing, artificial intelligence, medical bionic, human movement monitoring and health detection. ADVANTAGE - The micro-nano protrusion array structure increase the overlapping area between the outer sheath and the inner core under pressure, and increase the voltage and current of electricity generation, and the elastic film layer contains functional conductive material reduced graphene oxide, which also helps to improve the efficiency of electricity generation, adopts the synergy between the super-elastic and highly flexible inner core, the elastic film layer containing functional conductive materials and the micro-nano protrusion array structure. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing a self-powered elastic sensing fiber with an outer layer winding method to construct a skin-core structure comprising (1) preparing the inner core, (2) preparing the outer sheath, and (3) wrapping the outer sheath with the inner core to form a self-powered elastic sensing fiber.