Discrete Coating of CNT on Carbon Fiber Surfaces and the Effect on Improving the Electrochemical Performance of VRFB Systems
Carbon fiber, as an electrode material, has been widely used in all-vanadium liquid flow batteries. In order to further reduce the size of the all-vanadium storage system, it is imperative to increase the current density of the battery and to achieve high conductivity and large electrostatic capacit...
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| Veröffentlicht in: | Coatings (Basel) 2021-06, Vol.11 (6), p.736 |
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| creator | Tai, Zhongxu Ju, Dongying Sato, Susumu Hanawa, Kenzo |
| description | Carbon fiber, as an electrode material, has been widely used in all-vanadium liquid flow batteries. In order to further reduce the size of the all-vanadium storage system, it is imperative to increase the current density of the battery and to achieve high conductivity and large electrostatic capacitance. The graphitization of the electrode material and the improvement in the specific surface area of the electrode surface also greatly affect the performance of all-vanadium redox liquid flow batteries. Therefore, in this paper, carbon nanotubes (CNTs) with a small diameter and a large specific surface area were coated on the electrode surface of the VRFB system by the dispersion method to improve the cell performance. The performance of the surface-modified electrode was also verified by Raman spectroscopy, XRD and SEM surface observations and charge/discharge experiments. |
| doi_str_mv | 10.3390/coatings11060736 |
| format | Article |
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In order to further reduce the size of the all-vanadium storage system, it is imperative to increase the current density of the battery and to achieve high conductivity and large electrostatic capacitance. The graphitization of the electrode material and the improvement in the specific surface area of the electrode surface also greatly affect the performance of all-vanadium redox liquid flow batteries. Therefore, in this paper, carbon nanotubes (CNTs) with a small diameter and a large specific surface area were coated on the electrode surface of the VRFB system by the dispersion method to improve the cell performance. The performance of the surface-modified electrode was also verified by Raman spectroscopy, XRD and SEM surface observations and charge/discharge experiments.</description><identifier>ISSN: 2079-6412</identifier><identifier>EISSN: 2079-6412</identifier><identifier>DOI: 10.3390/coatings11060736</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>Batteries ; Carbon fibers ; Carbon nanotubes ; Coated electrodes ; Efficiency ; Electrochemical analysis ; Electrode materials ; Electrodes ; Electrolytes ; Energy storage ; Ethanol ; Experiments ; Fluid dynamics ; Fuel cells ; Graphitization ; Liquid flow ; R&D ; Raman spectroscopy ; Rechargeable batteries ; Research & development ; Specific surface ; Storage batteries ; Surface area ; Vanadium</subject><ispartof>Coatings (Basel), 2021-06, Vol.11 (6), p.736</ispartof><rights>2021 by the authors. Licensee MDPI, Basel, Switzerland. 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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; MDPI - Multidisciplinary Digital Publishing Institute; Alma/SFX Local Collection |
| subjects | Batteries Carbon fibers Carbon nanotubes Coated electrodes Efficiency Electrochemical analysis Electrode materials Electrodes Electrolytes Energy storage Ethanol Experiments Fluid dynamics Fuel cells Graphitization Liquid flow R&D Raman spectroscopy Rechargeable batteries Research & development Specific surface Storage batteries Surface area Vanadium |
| title | Discrete Coating of CNT on Carbon Fiber Surfaces and the Effect on Improving the Electrochemical Performance of VRFB Systems |
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