| 초록 |
Lignin is the second most abundant natural polymer, which can be derived from wood biomass resources. Although lignin has advantages in terms of a low cost, natural abundance, and industrial scale production, lignin has been largely treated as useless waste or was mostly used as the precursor of porous carbons. Therefore, the conversion of lignin into gel electrolytes and flexible nanofiber electrodes is expected to offer an innovative sustainable chemistry into the design of renewable and flexible energy storage materials as well as to widen the application fields of wood biomass. Here we have fabricated all-solid-state flexible supercapacitor exhibiting a maximum energy density and power density of 4.49 Wh kg-1 and 2627 W kg-1, respectively by integrating the lignin-PAN nanofiber electrode and lignin hydrogel electrolyte. |
