▎ 摘　　要

NOVELTY - Preparation method for supercapacitor electrode active material, involves(1) adding graphene microflakes and sodium nitrate into three-necked flask, add concentrated sulfuric acid while stirring, continue to stir and react after adding, then add potassium permanganate to continue stirring and react, then add deionized dropwise while stirring Water, after the dropwise addition, continue to stir reaction, then add deionized water and hydrogen peroxide solution, then continue to stir the reaction, after reaction is completed, reaction product is vacuum filtered, filter cake is washed and dried to obtain intermediate (1) adding m-xylylene dimethyl isocyanate, N-bromosuccinimide and tetrahydrofuran into a three-necked flask and stir for reaction. After the reaction is completed, add the reaction product into distilled water, then extract, dry the extract, and vacuum Suction filtration, the filtrate was rotary evaporated to obtain intermediate (2). USE - Preparation method for supercapacitor electrode active material. ADVANTAGE - The electrode active material and preparation method thereof for supercapacitor, solve existing graphene electrode material and have poor dispersion and be easy to agglomerate, and graphene occurs in the reduction process Severe layer stacking problems. DETAILED DESCRIPTION - Preparation method for supercapacitor electrode active material, involves(1) adding graphene microflakes and sodium nitrate into three-necked flask, add concentrated sulfuric acid while stirring, continue to stir and react after adding, then add potassium permanganate to continue stirring and react, then add deionized dropwise while stirring Water, after the dropwise addition, continue to stir reaction, then add deionized water and hydrogen peroxide solution, then continue to stir the reaction, after reaction is completed, reaction product is vacuum filtered, filter cake is washed and dried to obtain intermediate (1) adding m-xylylene dimethyl isocyanate, N-bromosuccinimide and tetrahydrofuran into a three-necked flask and stir for reaction. After the reaction is completed, add the reaction product into distilled water, then extract, dry the extract, and vacuum Suction filtration, the filtrate was rotary evaporated to obtain intermediate (2), adding Intermediate 1, Intermediate 2 and N,N-dimethylformamide into a three-necked flask for ultrasonic dispersion, then stir for reaction, after the reaction, vacuum filter the reaction product, wash and dry the filter cake, Intermediate (3) is obtained;Add intermediate 3 and N,N-dimethylformamide into three-necked flask for ultrasonic dispersion, then add 1,1'-ferrocene carboxylic acid to continue ultrasonic dispersion, and then stir the reaction. After the reaction, the reaction product is Vacuum suction filtration, filter cake was washed and dried to obtain intermediate (4);Add 2,6-dibromoaniline, bis(triphenylphosphine)palladium chloride, 2-thiophene boronic acid and dioxane into a three-necked flask, add saturated potassium carbonate solution drop by drop while stirring, drop Continue to stir the reaction after the addition is completed. After the reaction is completed, the reaction product is cooled to room temperature, then extracted, extract is dried, then vacuum filtered, and the filtrate is rotary evaporated to obtain intermediate (5), adding intermediate 5, chloroform and glacial acetic acid to a three-necked flask and stir, then add N-bromosuccinimide while stirring, continue to stir and react after the addition, and cool reaction product after the reaction is completed. After that, washing, standing and layering, drying the organic phase, vacuum filtration, and rotary evaporation of the filtrate to obtain intermediate (6). Adding intermediate 4, intermediate 6, potassium carbonate and N,N-dimethylformamide to a three-necked flask and stir for reaction. After the reaction is completed, add the reaction product to ice water, then extract, and dry the extract, followed by vacuum filtration, and the filtrate was rotary evaporated to obtain intermediate 7;Adding intermediate 7, chloroform and cetyltrimethylammonium bromide into a three-necked flask for ultrasonic dispersion, then add thiophene to continue ultrasonic dispersion, then stir the reaction, and vacuum filter the reaction product after the reaction , washing and drying the filter cake to obtain an electrode active material for a supercapacitor.