| 초록 |
Vanadium oxide has attracted a lot of attention in energy storage applications due to their intercalation properties by layered structure, effective electronic properties by multiple valences. However, since the electrical conductivity of vanadium oxide itself does not meet the requirements for electrode materials. In this study, PEDOT-intercalated ammonium vanadate nanofiber composites (S-EANVF) were synthesized within 3 hrs by using the sonochemical method. When the S-EAVNF was applied as an electrode material for pseudocapacitors, the crystal lattice distance of the vanadate nanofiber expanded by the PEDOT intercalation allowed the K+ ions of the electrolyte to rapidly diffuse between the lattice layers of the vanadate nanofiber, improving the charge storage capacitance and rate capability of the pseudocapacitor. Therefore, the proposed nanofiber composites can lead to new research directions in the field of high-rate energy storage devices. |
