Supercapacitor device having a composite electrode formed by depositing a metal oxide pseudocapacitor material on a carbon substrate

摘要

Supercapacitors have a composite electrode comprising a porous carbon material, such as graphene, on which a metal oxide pseudocapacitor material is deposited in the form of nanoscale particles or nanoscale films. Composite electrodes exhibit excellent specific capacity even at high scan speeds. [Selection] Figure 2