| 초록 |
In recent years, low cost and environmentally benign energy storage devices have attracted much attention for a portable electronics and electric vehicles. Lignin is found to be the most promising candidate because of high carbon content, biodegradability and favorable functionality. These advantages have motivated us in developing all lignin-based energy storage device. Here, we have used electrospinning method for preparing lignin incorporated PAN nanofiber as porous electrode material and have synthesized lignin based hydrogel electrolyte by crosslinking it with chemical crosslinker. Ultimately we have fabricated all-solid-state flexible supercapacitor by integrating the lignin-PAN nanofiber electrode and lignin hydrogel electrolyte. Structural analysis of electrode and electrolyte was measured by IR, SEM, TEM, XRD, BET and Raman spectroscopy. Also, electrochemical performance and bending test of electrolyte and flexible supercapacitor was carried out by LSV, EIS, CV and GCD. |
