▎ 摘　　要

NOVELTY - Preparing nickel-cobalt layered double hydroxides (LDHs)/graphene hybrid fiber involves dispersing graphene oxide in deionized water for ultrasonic treatment to obtain a uniformly dispersed graphene oxide solution, dissolving nickel nitrate, cobalt nitrate and cetyl trimethyl ammonium bromide in the graphene oxide solution, obtaining a reaction solution after ultrasonic treatment, and transferring into a stainless steel reaction kettle with a polytetrafluoroethylene lining, the precipitate is taken after 12 hours reaction at 180℃. The concentration of nickel nitrate is 1-5 g/L, the concentration of cobalt nitrate is 1-5 g/L, and the concentration of cetyltrimethylammonium bromide is 1-10 g/L, dispersed in deionized water for ultrasonic treatment for 1 hours, then added graphene oxide to continue ultrasonic treatment for 2 hours, and stirred to form a gel to obtain a spinning solution. USE - Method for preparing nickel-cobalt layered double hydroxides (LDHs)/graphene hybrid fiber used in electrode material (claimed) to super capacitor. ADVANTAGE - The method has good flexibility and small volume and excellent electrochemical performance. DETAILED DESCRIPTION - Preparing nickel-cobalt layered double hydroxides (LDHs)/graphene hybrid fiber involves dispersing graphene oxide in deionized water for ultrasonic treatment to obtain a uniformly dispersed graphene oxide solution, dissolving nickel nitrate, cobalt nitrate and cetyl trimethyl ammonium bromide in the graphene oxide solution, obtaining a reaction solution after ultrasonic treatment, and transferring into a stainless steel reaction kettle with a polytetrafluoroethylene lining, the precipitate is taken after 12 hours reaction at 180℃. The concentration of nickel nitrate is 1-5 g/L, the concentration of cobalt nitrate is 1-5 g/L, and the concentration of cetyltrimethylammonium bromide is 1-10 g/L, dispersed in deionized water for ultrasonic treatment for 1 hours, then added graphene oxide to continue ultrasonic treatment for 2 hours, and stirred to form a gel to obtain a spinning solution, the wet spinning apparatus is used, acetic acid is used as coagulation bath, extruded the spinning solution into the coagulation bath with a needle cylinder, collected fibers after drawing, dried and shaped. The fibers collected are dried at 60℃ for 24 hours, then soaked in a hydroiodic acid solution for reduction reaction, then fully washed with ethanol for 5 times, and dried at 60℃ for 12 hours to obtain product