▎ 摘　　要

NOVELTY - A porous carbon aerogel fiber all-solid supercapacitor is prepared by printing a graphene oxide/polyamic acid hydrogel on three dimensional printer to obtain a fibrous structure, performing freeze-drying, thermally imidizing and carbonizing, and finally assembling the carbon aerogel fiber electrode to obtain the finished product. USE - Porous carbon aerogel fiber all-solid supercapacitor. ADVANTAGE - The porous carbon aerogel fiber all-solid supercapacitor has better electrochemical performance, and can be prepared in simple operation and eco-friendly manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing porous carbon aerogel fiber all solid supercapacitor, which involves dissolving a water-soluble polyamic acid in a graphene oxide dispersion and stirring uniformly to obtain a graphene oxide/polyamic acid hydrogel by utilizing a sol-gel process, where graphene oxide and a water-soluble polyamic acid in the mass ratio of 1:1-8:1, transferring the graphene oxide/polyamic acid hydrogel into a syringe, and after ultrasonication, printing a fibrous structure through three dimensional printer to obtain a graphene oxide/polyamic acid hydrogel fiber, freeze-drying the graphene oxide/polyamic acid hydrogel fiber, thermally imidizing graphene oxide/polyamic acid aerogel fiber and carbonizing to obtain a carbon aerogel fiber electrode, assembling the carbon aerogel fiber electrode into a supercapacitor to obtain the finiahed product.