Preparation of Highly-Efficient Flexible Electrodes Employing the Electronic Tobacco Waste

초록

This study, presents a novel approach for fabricating flexible asymmetric supercapacitor (FAS) by fully recycling heated tobacco waste (HW). Tobacco leaves and cellulose acetate filters from HW are carbonized (C-HW) and combined with MnO2 and Fe3O4 to synthesize active electrode materials (C-MnO2/PLA and C-Fe3O4/PLA). Poly(lactic acid) (PLA) filters are dissolved in an organic solvent and mixed with carbonized materials to create flexible electrodes. The FAS, using C-MnO2/PLA as the positive electrode and C-Fe3O4/PLA as the negative electrode, exhibits a capacitance of 5.46mF cm-2 at 1mA cm-2 and maintains stable performance under bending angles of 45°, 90°, and 180°. These results confirm the feasibility of converting biomass waste into high-performance energy storage, contributing to sustainable and flexible electronics. 본 연구는 2025년도 산업통상자원부 및 산업기술기획평가원(KEIT) 연구비 지원에 의한 연구임(RS-2022-00156073).