Determining the Limiting Current Density of Vanadium Redox Flow Batteries
All-vanadium redox flow batteries (VRFBs) are used as energy storage systems for intermittent renewable power sources. The performance of VRFBs depends on materials of key components and operating conditions, such as current density, electrolyte flow rate and electrolyte composition. Mass transfer o...
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| Format: | Article |
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MDPI AG
2014-09-01
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| Series: | Energies |
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| Online Access: | http://www.mdpi.com/1996-1073/7/9/5863 |
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| author | Jen-Yu Chen Chin-Lung Hsieh Ning-Yih Hsu Yi-Sin Chou Yong-Song Chen |
| author_facet | Jen-Yu Chen Chin-Lung Hsieh Ning-Yih Hsu Yi-Sin Chou Yong-Song Chen |
| author_sort | Jen-Yu Chen |
| collection | DOAJ |
| description | All-vanadium redox flow batteries (VRFBs) are used as energy storage systems for intermittent renewable power sources. The performance of VRFBs depends on materials of key components and operating conditions, such as current density, electrolyte flow rate and electrolyte composition. Mass transfer overpotential is affected by the electrolyte flow rate and electrolyte composition, which is related to the limiting current density. In order to investigate the effect of operating conditions on mass transport overpotential, this study established a relationship between the limiting current density and operating conditions. First, electrolyte solutions with different states of charge were prepared and used for a single cell to obtain discharging polarization curves under various operating conditions. The experimental results were then analyzed and are discussed in this paper. Finally, this paper proposes a limiting current density as a function of operating conditions. The result helps predict the effect of operating condition on the cell performance in a mathematical model. |
| first_indexed | 2024-04-11T18:42:39Z |
| format | Article |
| id | doaj.art-17a9d11c70804eef8c1550bba7c889aa |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T18:42:39Z |
| publishDate | 2014-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-17a9d11c70804eef8c1550bba7c889aa2022-12-22T04:08:56ZengMDPI AGEnergies1996-10732014-09-01795863587310.3390/en7095863en7095863Determining the Limiting Current Density of Vanadium Redox Flow BatteriesJen-Yu Chen0Chin-Lung Hsieh1Ning-Yih Hsu2Yi-Sin Chou3Yong-Song Chen4Advanced Institute of Manufacturing with High-tech Innovation and Department of Mechanical Engineering, National Chung Cheng University, No. 168, University Rd., Minhsiung Township, 62102 Chiayi, TaiwanInstitute of Nuclear Energy Research, Atomic Energy Council, No. 1000 Wenhua Rd., Jiaan Village, Longtan Township, 32546 Taoyuan, TaiwanInstitute of Nuclear Energy Research, Atomic Energy Council, No. 1000 Wenhua Rd., Jiaan Village, Longtan Township, 32546 Taoyuan, TaiwanInstitute of Nuclear Energy Research, Atomic Energy Council, No. 1000 Wenhua Rd., Jiaan Village, Longtan Township, 32546 Taoyuan, TaiwanAdvanced Institute of Manufacturing with High-tech Innovation and Department of Mechanical Engineering, National Chung Cheng University, No. 168, University Rd., Minhsiung Township, 62102 Chiayi, TaiwanAll-vanadium redox flow batteries (VRFBs) are used as energy storage systems for intermittent renewable power sources. The performance of VRFBs depends on materials of key components and operating conditions, such as current density, electrolyte flow rate and electrolyte composition. Mass transfer overpotential is affected by the electrolyte flow rate and electrolyte composition, which is related to the limiting current density. In order to investigate the effect of operating conditions on mass transport overpotential, this study established a relationship between the limiting current density and operating conditions. First, electrolyte solutions with different states of charge were prepared and used for a single cell to obtain discharging polarization curves under various operating conditions. The experimental results were then analyzed and are discussed in this paper. Finally, this paper proposes a limiting current density as a function of operating conditions. The result helps predict the effect of operating condition on the cell performance in a mathematical model.http://www.mdpi.com/1996-1073/7/9/5863all-vanadium flow batterystate of charge (SOC)limiting current densitymass transfer |
| spellingShingle | Jen-Yu Chen Chin-Lung Hsieh Ning-Yih Hsu Yi-Sin Chou Yong-Song Chen Determining the Limiting Current Density of Vanadium Redox Flow Batteries Energies all-vanadium flow battery state of charge (SOC) limiting current density mass transfer |
| title | Determining the Limiting Current Density of Vanadium Redox Flow Batteries |
| title_full | Determining the Limiting Current Density of Vanadium Redox Flow Batteries |
| title_fullStr | Determining the Limiting Current Density of Vanadium Redox Flow Batteries |
| title_full_unstemmed | Determining the Limiting Current Density of Vanadium Redox Flow Batteries |
| title_short | Determining the Limiting Current Density of Vanadium Redox Flow Batteries |
| title_sort | determining the limiting current density of vanadium redox flow batteries |
| topic | all-vanadium flow battery state of charge (SOC) limiting current density mass transfer |
| url | http://www.mdpi.com/1996-1073/7/9/5863 |
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