Flexible asymmetric supercapacitors with reduced graphene oxide and lithium manganese oxide electrodes processed by atmospheric-pressure plasma jet
Journal
Ceramics International
ISSN
0272-8842
Date Issued
2025-02
Author(s)
DOI
10.1016/j.ceramint.2025.02.022
Abstract
A nitrogen atmospheric-pressure plasma jet (APPJ) is used for fabricating high-performance flexible asymmetric supercapacitors (ASCs). Screen-printed reduced graphene oxide (rGO) and LiCl-Mn(NO3)2·4H2O pastes were processed by APPJ to form the positive electrode material, and APPJ-processed rGO pastes were used as the negative electrode material. The electrodes sandwiched a PVA-Li2SO4 gel electrolyte to form the flexible ASC. The fabricated ASC exhibited stable operation at 1.6 V, with a maximum areal capacitance of 40.47 mF/cm2 and an energy density of 9.40 μWh/cm2. The capacitance retention rate reached 89 % when tested at a bending curvature of 1 cm−1 and 96 % after 4000 cycles of GCD testing.
Publisher
Elsevier BV
Type
journal article