| abstract |
The invention relates to a supercapacitor, in particular to a low internal resistance, high-power hybrid capacitor positive electrode piece and a preparation method thereof, belonging to the technical field of new energy energy storage devices, wherein the positive electrode piece is made of composite carbon paper, which is weighed by weighing As raw materials, carbon nanotubes, activated carbon and lithium metal oxide are mixed uniformly, and a dispersant is added to fully disperse; the dispersed mixture is vacuum filtered to form a composite carbon paper positive electrode sheet. The positive electrode sheet of the present invention has no metal current collector and is self-supporting, the positive electrode sheet has excellent properties of low internal resistance and high power, and the electrode has excellent physical and chemical properties such as easy formability, flexibility, and adsorption. |