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20 June 2024 Formation of laser-induced porous graphitic carbon structures for high capacitance supercapacitors
Mari Kato, Yosuke Kondo, Yuma Hattori, Rei Funayama, Shuichiro Hayashi, Mitsuhiro Terakawa
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Proceedings Volume PC13005, Laser + Photonics for Advanced Manufacturing ; PC130050A (2024) https://doi.org/10.1117/12.3021848
Event: SPIE Photonics Europe, 2024, Strasbourg, France
Abstract
The electric double-layer capacitor (EDLC) is an energy storage device distinguished by its relatively extended cycle life and rapid charge-discharge capabilities. Heightened capacitance of the EDLC aligns with an augmented specific surface area of the electrodes. In this study, we employed laser-induced graphitization of a biodegradable composite sheet containing NaHCO3 to fabricate a conductive porous carbon structures serving as EDLC electrodes. Pores were observed on the surface of the composite sheet containing NaHCO3 after laser irradiation. It is considered that the formation of pores, accompanied by gas generation from the thermal decomposition of NaHCO3, led to an increase in the specific surface area of the structures and improved capacitance. Our method extends the potential of environmentally compatible, plant-derived materials for device applications.
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(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Mari Kato, Yosuke Kondo, Yuma Hattori, Rei Funayama, Shuichiro Hayashi, and Mitsuhiro Terakawa "Formation of laser-induced porous graphitic carbon structures for high capacitance supercapacitors", Proc. SPIE PC13005, Laser + Photonics for Advanced Manufacturing , PC130050A (20 June 2024); https://doi.org/10.1117/12.3021848
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KEYWORDS
Capacitance
Carbon
Electrodes
Porosity
Composites
Electrical conductivity
Light emitting diodes
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