Energy storage device, method for manufacturing the same, and apparatus including the same

摘要

The present invention provides a highly reliable energy storage device capable of preventing a reaction current from flowing in a carbon nanotube electrode by ionizing a catalyst metal or a substrate metal to cause the metal to flow out to an electrolytic solution. An energy storage device of the present invention includes: at least a pair of electrode bodies that are a cathode and an anode; and an electrolytic solution. At least one of the electrode bodies is configured such that a layer of carbon nanotubes is formed on an electric conductor. A coupling region where one ends of the carbon nanotubes are coupled to and electrically connected to the electric conductor and a non-coupling region where ends of the carbon nanotubes are not coupled to the electric conductor are formed on a surface of the electric conductor. The carbon nanotubes having one ends connected to the coupling region are toppled to cover a surface of the non-coupling region.

主权项

1. An energy storage device comprising:
at least a pair of electrode bodies that are a cathode and an anode; and an electrolytic solution, wherein: at least one of the electrode bodies is configured such that a layer of carbon nanotubes is formed on an electric conductor, a surface of the electric conductor includes a coupling region where catalyst metal particles are scattered thereon and a non-coupling region which is a region other than the coupling region, in the coupling region, the carbon nanotubes are grown on the catalyst metal particles and one end of each of the carbon nanotubes is electrically coupled to the electric conductor, in the non-coupling region, ends of the carbon nanotubes are not coupled to the electric conductor, the carbon nanotubes having ends connected to the coupling region are toppled to cover a surface of the non-coupling region, and a width of the non-coupling region is larger than a distance between the carbon nanotubes on the coupling region.