▎ 摘　　要

NOVELTY - Fiber composite comprises multiple carbon nanotubes having a fiber shape and oriented in an axial direction of the fiber, and plate-shaped carbon material filled between adjacent carbon nanotubes. USE - Used as fiber composite. ADVANTAGE - The fiber composite has excellent specific strength, specific modulus, and electrochemical activity, and is very effective in fabricating materials with high strength. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: composition for producing a fiber composite comprising carbon nanotubes, carbon particles having a form in which plate-shaped carbon materials are laminated and assembled, and solvent; and producing a fiber composite comprising preparing a spinning dope containing carbon particles and solvent in which carbon nanotubes and plate-shaped carbon materials are laminated and assembled, spinning the radiation dope, and solidifying the spun result. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the internal microstructure of a fiber composite.