Exploring the Flow and Mass Transfer Characteristics of an All-Iron Semi-Solid Redox Flow Battery
To improve the flow mass transfer inside the electrodes and the efficiency of an all-iron redox flow battery, a semi-solid all-iron redox flow battery is presented experimentally. A slurry electrode is designed to replace the traditional porous electrode. Moreover, the effects of an additional exter...
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MDPI AG
2025-04-01
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| Online Access: | https://www.mdpi.com/2313-0105/11/4/166 |
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| author | Heyao Li Zhuqian Zhang Haojie Zhang Yuchen Zhou |
| author_facet | Heyao Li Zhuqian Zhang Haojie Zhang Yuchen Zhou |
| author_sort | Heyao Li |
| collection | DOAJ |
| description | To improve the flow mass transfer inside the electrodes and the efficiency of an all-iron redox flow battery, a semi-solid all-iron redox flow battery is presented experimentally. A slurry electrode is designed to replace the traditional porous electrode. Moreover, the effects of an additional external magnetic field are further investigated in the semi-solid battery experiment. The results show that the mass transfer of the slurry in the battery flow channel and the prolonged discharge time are significantly affected by the additional external magnetic fields. In addition, a three-dimensional model of the semi-solid all-iron redox flow battery is presented in detail, and it is verified to be reliable by experimental data. The simulation results show that the ion concentration distributions in the battery become more uniform with the increase in the flow rate and the initial concentration. Furthermore, it is also found that the size of the flow channel influences the mass transfer efficiency of the slurry. After optimizing the flow channel, it is found that when the flow channel length of the slurry inlet and outlet section is 2 cm, the operating efficiency of the semi-solid battery shows an increasing trend. This work provides comprehensive insight into the improvement of the performances of flow batteries, which will be conducive to the practical application of flow batteries. |
| format | Article |
| id | doaj-art-2e0a23913b5c4cea8f8240ffbfcedcd5 |
| institution | DOAJ |
| issn | 2313-0105 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Batteries |
| spelling | doaj-art-2e0a23913b5c4cea8f8240ffbfcedcd52025-08-20T03:14:25ZengMDPI AGBatteries2313-01052025-04-0111416610.3390/batteries11040166Exploring the Flow and Mass Transfer Characteristics of an All-Iron Semi-Solid Redox Flow BatteryHeyao Li0Zhuqian Zhang1Haojie Zhang2Yuchen Zhou3School of Mechanical Electronic and Control Engineering, BeijingJiaotong University, Beijing 100044, ChinaSchool of Mechanical Electronic and Control Engineering, BeijingJiaotong University, Beijing 100044, ChinaSchool of Mechanical Electronic and Control Engineering, BeijingJiaotong University, Beijing 100044, ChinaSchool of Mechanical Electronic and Control Engineering, BeijingJiaotong University, Beijing 100044, ChinaTo improve the flow mass transfer inside the electrodes and the efficiency of an all-iron redox flow battery, a semi-solid all-iron redox flow battery is presented experimentally. A slurry electrode is designed to replace the traditional porous electrode. Moreover, the effects of an additional external magnetic field are further investigated in the semi-solid battery experiment. The results show that the mass transfer of the slurry in the battery flow channel and the prolonged discharge time are significantly affected by the additional external magnetic fields. In addition, a three-dimensional model of the semi-solid all-iron redox flow battery is presented in detail, and it is verified to be reliable by experimental data. The simulation results show that the ion concentration distributions in the battery become more uniform with the increase in the flow rate and the initial concentration. Furthermore, it is also found that the size of the flow channel influences the mass transfer efficiency of the slurry. After optimizing the flow channel, it is found that when the flow channel length of the slurry inlet and outlet section is 2 cm, the operating efficiency of the semi-solid battery shows an increasing trend. This work provides comprehensive insight into the improvement of the performances of flow batteries, which will be conducive to the practical application of flow batteries.https://www.mdpi.com/2313-0105/11/4/166redox flow batteries (RFBs)flow and mass transferbattery performanceslurry electrodesemi-solid batteryoperating efficiency |
| spellingShingle | Heyao Li Zhuqian Zhang Haojie Zhang Yuchen Zhou Exploring the Flow and Mass Transfer Characteristics of an All-Iron Semi-Solid Redox Flow Battery Batteries redox flow batteries (RFBs) flow and mass transfer battery performance slurry electrode semi-solid battery operating efficiency |
| title | Exploring the Flow and Mass Transfer Characteristics of an All-Iron Semi-Solid Redox Flow Battery |
| title_full | Exploring the Flow and Mass Transfer Characteristics of an All-Iron Semi-Solid Redox Flow Battery |
| title_fullStr | Exploring the Flow and Mass Transfer Characteristics of an All-Iron Semi-Solid Redox Flow Battery |
| title_full_unstemmed | Exploring the Flow and Mass Transfer Characteristics of an All-Iron Semi-Solid Redox Flow Battery |
| title_short | Exploring the Flow and Mass Transfer Characteristics of an All-Iron Semi-Solid Redox Flow Battery |
| title_sort | exploring the flow and mass transfer characteristics of an all iron semi solid redox flow battery |
| topic | redox flow batteries (RFBs) flow and mass transfer battery performance slurry electrode semi-solid battery operating efficiency |
| url | https://www.mdpi.com/2313-0105/11/4/166 |
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