▎ 摘　　要

NOVELTY - Laser-acid modified synergistic preparation method of carbon-based supercapacitor electrode, involves mixing polyimidazole-based polymer base material with an acid solution, performing acid modification to obtain an acid-modified polyimidazole-based polymer base material, and irradiating the acid-modified polyimidazole-based polymer base material with laser to obtain the carbon-based supercapacitor electrode. USE - The laser-acid modified synergistic preparation method is used for carbon-based supercapacitor electrode in supercapacitor (all claimed) in motor vehicle battery galvanic pile, secondary energy collection, grid architecture energy distribution. ADVANTAGE - The carbon-based super capacitor electrode has high specific capacitance and energy density, so the constructed super capacitor has excellent energy storage performance. The method obtains high quality graphene by laser processing acid modified polyimidazole polymer substrate material. The process is simple, the condition is mild, compared with the existing technology, the graphene quality or graphene porosity is improved. The porous graphene porosities and doped atomic weight problem, can realize the highest specific surface capacitance 149 mF/cm2 the highest energy density 20.7 Wh/cm 2 of energy storage effect. The acid molecule is easy to absorb laser energy to generate more free radical promoting reaction, and promotes free radical generating and synthesizing volatile gas generating hole and taking away the energy.