초록 |
Nanoporous pyropolymers have been attracted much attention as active electrode materials for energy storage devices such as supercapacitors and rechargeable batteireis. In this study, nanoporous pyropolymers (N-PPs) were fabricated from waste sawdust by pyrolysis and followed by chemical activation, and their charge stroage behaviors were characterized in 1M Li2SO4 aqueous electrolyte. N-PPs have a large number of nanopores and high specific surface area of 3044.6 m2 g-1, showing high electrochemical performances. In addition, through a voltage tuning via charge injection method, highly increased charge storage performances were achieved in a symmetric full cell system. |