Regulating flow field design on carbon felt electrode towards high power density operation of vanadium flow batteries
文献类型：期刊论文
| 作者 | Hao, Huanhuan1,2; Zhang, Qi-an1; Feng, Ziyang3; Tang, Ao1 |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2022-12-15 |
| 卷号 | 450页码:10 |
| ISSN号 | 1385-8947 |
| 关键词 | Vanadium flow battery High power stack Flow field design Felt electrode Pressure drop Finite element analysis |
| DOI | 10.1016/j.cej.2022.138170 |
| 通讯作者 | Feng, Ziyang(ziyang.feng.d@chnenergy.com.cn) ; Tang, Ao(a.tang@imr.ac.cn) |
| 英文摘要 | Flow batteries promise a great practice to integrate with renewable energy sources in electric grid applications. However, high power density operation of flow batteries remains a challenge due to mass transport limitation and flow resistance in porous carbon felt electrode, which urges the need of advanced flow design to synergistically lower concentration polarization and reduce pressure drop. Herein, we realize a remarkably enhanced power density operation for vanadium flow batteries by regulating flow field design on carbon felt electrodes. Finite element analyses firstly reveal significantly reduced pressure drop, well-distributed reactant and promoted flow velocity on carbon felts with parallel and interdigitated flow designs. On the basis of measured local mass transfer coefficients, both interdigitated and parallel based felts exhibit a notable reduction in simulated concentration polarization at 200 mA cm-2 with parallel flow outperforming interdigitated design. Experimental validations further confirm a superior voltage efficiency of 78 % and significantly enhanced discharge capacity at 200 mA cm-2 for the flow cell adopting parallel based felts. Finally, dynamic modelling and simulation of an industrial-scale 32 kW stack highlight a desirable system efficiency of ca. 70 % for the parallel flow felt design at 200 mA cm-2, signifying a great potential of regulating flow field on carbon felts for design and scale-up of practical flow battery stacks. |
| 资助项目 | Natural Science Foundation of Liaoning Province[2020 -MS -012] ; Chinese Energy Group Science and Technology Innovation |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE SA |
| WOS记录号 | WOS:000862460000001 |
| 资助机构 | Natural Science Foundation of Liaoning Province ; Chinese Energy Group Science and Technology Innovation |
| 源URL | [http://ir.imr.ac.cn/handle/321006/175824]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Feng, Ziyang; Tang, Ao |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang, Peoples R China 3.Natl Inst Clean and Low Carbon Energy, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hao, Huanhuan,Zhang, Qi-an,Feng, Ziyang,et al. Regulating flow field design on carbon felt electrode towards high power density operation of vanadium flow batteries[J]. CHEMICAL ENGINEERING JOURNAL,2022,450:10. |
| APA | Hao, Huanhuan,Zhang, Qi-an,Feng, Ziyang,&Tang, Ao.(2022).Regulating flow field design on carbon felt electrode towards high power density operation of vanadium flow batteries.CHEMICAL ENGINEERING JOURNAL,450,10. |
| MLA | Hao, Huanhuan,et al."Regulating flow field design on carbon felt electrode towards high power density operation of vanadium flow batteries".CHEMICAL ENGINEERING JOURNAL 450(2022):10. |
入库方式： OAI收割
来源：金属研究所
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