ELECTRODE FOR ELECTRIC DOUBLE LAYER CAPACITOR AND METHOD FOR PRODUCING THE SAME

摘要

An electrical double-layer capacitor electrode with excellent capacitance characteristics is obtained together with a manufacturing method therefor. Paper-molded sheet 2 of carbon nanotubes is integrated with etched foil 1 constituting a collector, by means of bumps and indentations 1a formed on the surface of etched foil 1 to prepare an electrical double-layer capacitor electrode. Alternatively, carbon nanotubes 4 grown around core catalyst particles on substrate 3 are integrated with etched foil 1 by means of bumps and indentations 1a formed on the surface of etched foil 1 to prepare an electrical double-layer capacitor electrode. To manufacture these electrodes, this carbon nanotube sheet 2 or substrate 3 with carbon nanotubes grown thereon is laid over bumps and indentations 1a on the surface of etched foil 1, and the sheet or substrate and the foil are pressed under 0.01 to 100 t/cm 2 of pressure to integrate the carbon nanotubes with the etched foil.