Flexible supercapacitor has the advantages of short charging and discharging time, high power and durability. As a portable power energy storage device, it shows great development potential. So far, there are still some technical problems in flexible supercapacitors with excellent electrochemical and structural mechanical properties. For this reason, this paper would use cellulose based electrode materials to study the performance of flexible supercapacitor. It is found that the curves of galvanostatic charge discharge under different current densities are similar to symmetrical triangles when the flexible supercapacitor is made of it. It shows that the capacitor has excellent electrochemical reversibility. At the same time, the charge discharge cycle test is carried out using the flexible supercapacitor made of the capacitor and the flexible supercapacitor made of biomass carbon materials. It is found that the materials studied in this paper can make the charge discharge cycle of flexible supercapacitor more stable. The final stability is 94.75% after 12000 cycles. In this paper, 20 experts were selected to evaluate the flexible supercapacitor made of two materials. The score based on the materials studied in this paper was above 4.3, while the score based on biomass carbon materials was below 4. Cellulose based electrode materials can be used to produce flexible supercapacitor with shorter production time than biomass carbon materials, stronger conductivity and strong practicability. Therefore, it is meaningful to study the performance of flexible supercapacitor based on cellulose electrode materials.
