Vertically Aligned Carbon Nanotube Electrode and Application to a Lithium Ion Capacitor

An electric double-layer capacitor (EDLC) is a highoutput capacitor with a long service life, but with the drawback of low energy density. Because policies for reducing greenhouse gas emissions have been implemented in recent years, there is a need to increase the energy density of the capacitors installed in hybrid electric and all-electric vehicles (HEVs and EVs).

Vertically Aligned Carbon Nanotube Electrode and Application to a Lithium Ion Capacitor