Supercross-linked polymers are widely used as carbon precursor materials due to their abundant carbon sources and low cost. In this paper, a supercross-linked polymer was prepared by the solvothermal method. The supercross-linked polymer as a precursor and the PPyC-800-A was synthesized by activating this with KOH. The microstructure, structure, and electrochemical performances of porous carbon PPyC-800-A were studied at different of temperature and carbon alkali ratio. According to the results, the porous carbon PPyC-800-1:2 is mainly composed of a stack of spherical particles with a high surface area of 1427.03 m2 g− 1, an average pore diameter of 2.32 nm, and a high specific capacitance of 217.7 F g− 1 at a current density of 1.0 A g− 1 in a 6 M KOH electrolyte. It’s retention rate is 97.58% after 5000 constant current charges and discharges. With a specific capacitance decay rate of 21.91 percent, an energy density of 11.96 Wh kg− 1, and a power density of 500.0 W kg− 1, the current density rises from 1.0 A g− 1 to 10.0 A g− 1, exhibiting remarkable electrochemical properties, cycling stability, and energy production performance This study contributes experimental ideas to the field of supercrosslinked polymer-derived carbon materials and energy storage.

    Abstract
    1 Introduction
    2 Experimental methods
        2.1 Preparation of carbon precursor polypyrrole
        2.2 Preparation of porous carbon materials
        2.3 Structural performance characterization
        2.4 Preparation of the working electrodes
        2.5 Electrochemical performance testing
    3 Results and discussion
        3.1 Physical phase analysis
        3.2 Microstructure
        3.3 Surface composition and element analysis
        3.4 Electrochemical performance analysis
    4 Conclusion
    Acknowledgements 
    References

• Lili Wu(Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, School of Petrochemical Technology, Lanzhou University of Technology Lanzhou)
• Xinguo Chen(Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, School of Petrochemical Technology, Lanzhou University of Technology Lanzhou)
• Chang Ding(Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, School of Petrochemical Technology, Lanzhou University of Technology Lanzhou)
• Pitao Wang(Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, School of Petrochemical Technology, Lanzhou University of Technology Lanzhou)
• Heming Luo(Key Laboratory of Low Carbon Energy and Chemical Engineering of Gansu Province, School of Petrochemical Technology, Lanzhou University of Technology Lanzhou)