▎ 摘　　要

NOVELTY - A precursor fiber comprises lyocell and graphene nanocomposite. USE - Precursor fiber used for manufacturing carbon fiber (claimed). ADVANTAGE - The precursor fiber produces carbon fiber having high strength and high elongation ratio with high yield. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) manufacture of precursor fiber; and (2) manufacture of carbon fiber.