▎ 摘　　要

NOVELTY - The method involves taking an appropriate amount of super absorbent polymer resin and mixing it with sulfur-doped graphene, and placing it in a twin-screw extruder. The screw speed is controlled to be 180-600 rpm. The internal sulfur Graphene-doped super absorbent polymer resin particles are obtained. The super absorbent polymer resin particles containing sulfur doped graphene fully absorb water are made and expanded into a solid hydrogel of the corresponding form. The obtained solid hydrogel and nano-silicon aerogel is evenly mixed and stirred. The solvent is added for ultrasonic dispersion to prepare a supercapacitor slurry. USE - Preparation method of supercapacitor slurry. ADVANTAGE - The method ensures the stability of the slurry to improve the performance of the capacitor.