Patent ID: 9362563
Filing Date: 2016-06-07
CPC Classification: H01G,H01M,Y02E,Y02P,Y02T

Claim Text:
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.