▎ 摘　　要

NOVELTY - A piezoelectric chemical fiber comprises stretchable structure formed by conductive fiber, gel electrolyte covering surface of stretchable structures, conductive fibers covering gel electrolytes on surface, and gel electrolyts covering the surface of the stretchable structural structure. USE - The piezoelectric chemical fiber is usefd for preparing a friction nano-generator or self-energy-supply sensor. ADVANTAGE - The piezoelectric chemical fiber can realize the application in various environments, can be applied to preparing flexible nano-generator or self-energy supply sensor and so on. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing piezoelectric chemical fiber, which involves providing a conductive fiber with large specific surface area, tensile deformation, making the surface of the gel electrolyte and the conductive contact to obtain piezoelectric chemical fiber, when the piezoelectric chemical fiber is applied with mechanical stimulation, two ends will generate potential difference, so as to output voltage signal.