Discarded Polyimide Film-Derived Hierarchical Porous Carbon Boosting the Energy Density of Supercapacitors in Na2SO4 and Spiro-(1,1′)-bipyrrolidinium Tetrafluoroborate Electrolytes
Aluminium-sulfur (Al-S) batteries possess high research merits and application prospects owing to their high theoretical energy density, high safety and low cost. However, the deficiency of outstanding cathodes severely limits...
N, O and P co-doped honeycomb-like hierarchical porous carbon (N-P-HHPC-3) derived from Sophora japonica displays an ultrahigh energy density (80.8 W h kg−1 at 1500 W kg−1) and outstanding long-term stability.
Hierarchical porous carbon for high volumetric energy density supercapacitors is prepared using biomass derivatives through a facile and green process.
Simple and scalable synthesis of hierarchical porous carbon derived from cornstalk without pith for high capacitance and energy density