| abstract |
The invention relates to the technical field of new energy materials, and discloses a carbon-based electrode material with ultra-high specific capacitance and a preparation method thereof. The carbon-based electrode material comprises the following raw materials in parts by weight: 50-80 parts of modified porous carbon material, 10-30 parts of sulfur-doped porous polypyrrole carbon nanotubes, by introducing benzene sulfonic acid groups on the surface of biomass-based porous carbon, the modification of porous carbon materials is realized, and sulfur-containing functional groups are introduced into the structure of polypyrrole nanotubes , and then carbonized to obtain sulfur-doped porous polypyrrole carbon nanotubes, and then by mechanical stirring, the sulfur-doped porous polypyrrole nanotubes were inserted into the pores of the modified porous carbon material to prepare carbon-based electrode materials. Carbon-based electrode materials have ultra-high specific capacitance, excellent cycling stability and rate capability. |