Effects of Carbon Fiber Compression Ratio and Electrolyte Flow Rate on the Electrochemical Performance of Vanadium Redox Batteries
All-vanadium flow batteries (VRFBs) are used in the field of energy storage due to their long service life and high safety. In order to further improve the charge-discharge performance of VRFB, this study mainly used the comparative evaluation of VRFB’s carbon fiber electrode compression ratio and e...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2021/6646256 |
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| author | Zhongxu Tai Kenzo Hanawa Dongying Ju Wenping Luo Rui Lyu Kousuke Ishikawa Susumu Sato |
| author_facet | Zhongxu Tai Kenzo Hanawa Dongying Ju Wenping Luo Rui Lyu Kousuke Ishikawa Susumu Sato |
| author_sort | Zhongxu Tai |
| collection | DOAJ |
| description | All-vanadium flow batteries (VRFBs) are used in the field of energy storage due to their long service life and high safety. In order to further improve the charge-discharge performance of VRFB, this study mainly used the comparative evaluation of VRFB’s carbon fiber electrode compression ratio and electrolyte flow rate. The battery is charged and discharged under different current densities, different compression ratios, and different flow rates. The results show that increasing the compression ratio at different current densities can reduce the internal resistance of the battery, but an excessive compression ratio will accelerate the transfer of vanadium ions, increase the deviation of the electrolyte, and reduce the Coulombic efficiency of the battery. The performance of the battery tends to be balanced when the compression ratio is 30%. At the same time, in the case of the same compression ratio, increasing the flow rate of the electrolyte can reduce the internal reaction resistance of the battery. When the flow reaches a certain value, the influence on the internal resistance will be smaller. |
| format | Article |
| id | doaj-art-e81a2347b1334ff190325a26b15818cf |
| institution | DOAJ |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-e81a2347b1334ff190325a26b15818cf2025-08-20T03:21:03ZengWileyJournal of Chemistry2090-90632090-90712021-01-01202110.1155/2021/66462566646256Effects of Carbon Fiber Compression Ratio and Electrolyte Flow Rate on the Electrochemical Performance of Vanadium Redox BatteriesZhongxu Tai0Kenzo Hanawa1Dongying Ju2Wenping Luo3Rui Lyu4Kousuke Ishikawa5Susumu Sato6Department of Information System, Saitama Institute of Technology, Fukaya, JapanTokyo Green Power Electric Research Institute Co. Ltd., Tokyo, JapanDepartment of Information System, Saitama Institute of Technology, Fukaya, JapanDepartment of Information System, Saitama Institute of Technology, Fukaya, JapanTokyo Green Power Electric Research Institute Co. Ltd., Tokyo, JapanTokyo Green Power Electric Research Institute Co. Ltd., Tokyo, JapanDepartment of Information System, Saitama Institute of Technology, Fukaya, JapanAll-vanadium flow batteries (VRFBs) are used in the field of energy storage due to their long service life and high safety. In order to further improve the charge-discharge performance of VRFB, this study mainly used the comparative evaluation of VRFB’s carbon fiber electrode compression ratio and electrolyte flow rate. The battery is charged and discharged under different current densities, different compression ratios, and different flow rates. The results show that increasing the compression ratio at different current densities can reduce the internal resistance of the battery, but an excessive compression ratio will accelerate the transfer of vanadium ions, increase the deviation of the electrolyte, and reduce the Coulombic efficiency of the battery. The performance of the battery tends to be balanced when the compression ratio is 30%. At the same time, in the case of the same compression ratio, increasing the flow rate of the electrolyte can reduce the internal reaction resistance of the battery. When the flow reaches a certain value, the influence on the internal resistance will be smaller.http://dx.doi.org/10.1155/2021/6646256 |
| spellingShingle | Zhongxu Tai Kenzo Hanawa Dongying Ju Wenping Luo Rui Lyu Kousuke Ishikawa Susumu Sato Effects of Carbon Fiber Compression Ratio and Electrolyte Flow Rate on the Electrochemical Performance of Vanadium Redox Batteries Journal of Chemistry |
| title | Effects of Carbon Fiber Compression Ratio and Electrolyte Flow Rate on the Electrochemical Performance of Vanadium Redox Batteries |
| title_full | Effects of Carbon Fiber Compression Ratio and Electrolyte Flow Rate on the Electrochemical Performance of Vanadium Redox Batteries |
| title_fullStr | Effects of Carbon Fiber Compression Ratio and Electrolyte Flow Rate on the Electrochemical Performance of Vanadium Redox Batteries |
| title_full_unstemmed | Effects of Carbon Fiber Compression Ratio and Electrolyte Flow Rate on the Electrochemical Performance of Vanadium Redox Batteries |
| title_short | Effects of Carbon Fiber Compression Ratio and Electrolyte Flow Rate on the Electrochemical Performance of Vanadium Redox Batteries |
| title_sort | effects of carbon fiber compression ratio and electrolyte flow rate on the electrochemical performance of vanadium redox batteries |
| url | http://dx.doi.org/10.1155/2021/6646256 |
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