| Analyses and optimization of electrolyte concentration on the electrochemical performance of iron-chromium flow battery | |
| Wang, Shaoliang1,2; Xu, Zeyu1,2; Wu, Xiaoliang1; Zhao, Huan1; Zhao, Jinling1; Liu, Jianguo1,2; Yan, Chuanwei1,2; Fan, Xinzhuang1 | |
| Corresponding Author | Liu, Jianguo(jgliu@imr.ac.cn) ; Fan, Xinzhuang(mexzfan@gmail.com) |
| 2020-08-01 | |
| Source Publication | APPLIED ENERGY
 |
| ISSN | 0306-2619 |
| Volume | 271Pages:8 |
| Abstract | In order to improve the electrochemical performance of iron-chromium flow battery, a series of electrolytes with x M FeCl2 + x M CrCl3 + 3.0 M HCl (x = 0.5, 0.75, 1.0, 1.25) and 1.0 M FeCl2 + 1.0 M CrCl3 + y M HCl (y = 1.0, 2.0, 3.0, 4.0) are prepared, and the effect of electrolyte concentration on the electrochemical performance of iron-chromium flow battery are firstly investigated. The viscosity of electrolyte increases along with the increasing concentration of FeCl2, CrCl3 and HCl, however, the corresponding conductivity decreases with the increasing concentration of FeCl2 and CrCl3 but increases with the increasing HCl concentration. It is worth noting that the electrolyte with 1.0 M FeCl2, 1.0 M CrCl3 and 3.0 M HCl presents the best electrochemical performance due to the synergistic effect of viscosity, conductivity and electrochemical activity. Most importantly, iron-chromium flow battery with the optimized electrolyte presents excellent battery efficiency (coulombic efficiency: 97.4%; energy efficiency: 81.5%) when the operating current density is high up to 120 mA cm(-2). This work can improve the battery performance of iron-chromium flow battery more efficiently, and further provide theoretical guidance and data support to its engineering application. |
| Keyword | Iron-chromium flow battery Electrolyte Concentration optimization Electrochemical activity Battery performance |
| Funding Organization | National Nature Science Foundation of China ; Open project of State Key Laboratory of Heavy Oil Processing in China University of Petroleum |
| DOI | 10.1016/j.apenergy.2020.115252 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Nature Science Foundation of China[21975267] ; National Nature Science Foundation of China[21703263] ; National Nature Science Foundation of China[21573257] ; Open project of State Key Laboratory of Heavy Oil Processing in China University of Petroleum[Y7F1911191] |
| WOS Research Area | Energy & Fuels ; Engineering |
| WOS Subject | Energy & Fuels ; Engineering, Chemical |
| WOS ID | WOS:000540436500037 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/139235 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liu, Jianguo; Fan, Xinzhuang |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Shaoliang,Xu, Zeyu,Wu, Xiaoliang,et al. Analyses and optimization of electrolyte concentration on the electrochemical performance of iron-chromium flow battery[J]. APPLIED ENERGY,2020,271:8. |
| APA | Wang, Shaoliang.,Xu, Zeyu.,Wu, Xiaoliang.,Zhao, Huan.,Zhao, Jinling.,...&Fan, Xinzhuang.(2020).Analyses and optimization of electrolyte concentration on the electrochemical performance of iron-chromium flow battery.APPLIED ENERGY,271,8. |
| MLA | Wang, Shaoliang,et al."Analyses and optimization of electrolyte concentration on the electrochemical performance of iron-chromium flow battery".APPLIED ENERGY 271(2020):8. |
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