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Ultrafast Fabrication of H2SO4, LiCl, and Li2SO4 Gel Electrolyte Supercapacitors with Reduced Graphene Oxide (rGO)-LiMnOx Electrodes Processed Using Atmospheric-Pressure-Plasma Jet
Lan, P.-L.; Ni, I.-C.; Wu, C.-I.; Hsu, C.-C.; Cheng, I.-C.; Chen, J.-Z. Ultrafast Fabrication of H2SO4, LiCl, and Li2SO4 Gel Electrolyte Supercapacitors with Reduced Graphene Oxide (rGO)-LiMnOx Electrodes Processed Using Atmospheric-Pressure Plasma Jet. Micromachines2023, 14, 1701.
Lan, P.-L.; Ni, I.-C.; Wu, C.-I.; Hsu, C.-C.; Cheng, I.-C.; Chen, J.-Z. Ultrafast Fabrication of H2SO4, LiCl, and Li2SO4 Gel Electrolyte Supercapacitors with Reduced Graphene Oxide (rGO)-LiMnOx Electrodes Processed Using Atmospheric-Pressure Plasma Jet. Micromachines 2023, 14, 1701.
Lan, P.-L.; Ni, I.-C.; Wu, C.-I.; Hsu, C.-C.; Cheng, I.-C.; Chen, J.-Z. Ultrafast Fabrication of H2SO4, LiCl, and Li2SO4 Gel Electrolyte Supercapacitors with Reduced Graphene Oxide (rGO)-LiMnOx Electrodes Processed Using Atmospheric-Pressure Plasma Jet. Micromachines2023, 14, 1701.
Lan, P.-L.; Ni, I.-C.; Wu, C.-I.; Hsu, C.-C.; Cheng, I.-C.; Chen, J.-Z. Ultrafast Fabrication of H2SO4, LiCl, and Li2SO4 Gel Electrolyte Supercapacitors with Reduced Graphene Oxide (rGO)-LiMnOx Electrodes Processed Using Atmospheric-Pressure Plasma Jet. Micromachines 2023, 14, 1701.
Abstract
Pastes containing reduced graphene oxide (rGO) and LiCl-Mn(NO3)2·4H2O are screen-printed on a carbon cloth substrate and then calcined using a nitrogen atmospheric-pressure-plasma jet (APPJ) for conversion into rGO-LiMnOx nanocomposites. The APPJ processing time is within 300 s. RGO-LiMnOx on carbon cloth is used to sandwich H2SO4, LiCl, or Li2SO4 gel electrolytes to form hybrid supercapacitors (HSCs). The areal capacitance, energy density, and cycling stability of the HSCs are evaluated using electrochemical measurement. The Li2SO4 gel electrolyte HSC exhibits the highest areal capacitance and energy density but lower cycling stability. By contrast, the H2SO4 gel electrolyte HSC exhibits better cycling stability but lower areal capacitance and energy density.
Chemistry and Materials Science, Materials Science and Technology
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