| abstract |
The present invention relates to a nanocrystal and an energy storage device in which metal oxides are rearranged using lithium, and a supercapacitor using the same. More specifically, the transition metal nanoparticles are dispersed in a carbon-based support having a large specific surface area and then dispersed and rearranged on a support using lithium ions having a strong reducing power, Lt; / RTI > is dispersed and relocated on a support with particles of a single unit. The present invention also relates to a super capacitor using the same. The energy storage device of the rearranged metal particles of the present invention exhibited several times higher capacitance than before metal oxide rearrangement. In addition, since the rearranged metal particles are particles of an atomic unit size of less than 1 nanometer, intergranular interference disappears and exhibits a lifetime characteristic that performance is maintained at 100% even over 100,000 cycles. |