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Analyses and optimization of electrolyte concentration on the electrochemical performance of iron-chromium flow battery

文献类型：期刊论文

作者Wang, Shaoliang1,2; Xu, Zeyu1,2; Wu, Xiaoliang1; Zhao, Huan1; Zhao, Jinling1; Liu, Jianguo1,2; Yan, Chuanwei1,2; Fan, Xinzhuang1
刊名APPLIED ENERGY
出版日期2020-08-01
卷号271页码:8
关键词Iron-chromium flow battery Electrolyte Concentration optimization Electrochemical activity Battery performance
ISSN号0306-2619
DOI10.1016/j.apenergy.2020.115252
通讯作者Liu, Jianguo(jgliu@imr.ac.cn) ; Fan, Xinzhuang(mexzfan@gmail.com)
英文摘要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.
资助项目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研究方向Energy & Fuels ; Engineering
语种英语
WOS记录号WOS:000540436500037
出版者ELSEVIER SCI LTD
资助机构National Nature Science Foundation of China ; Open project of State Key Laboratory of Heavy Oil Processing in China University of Petroleum
源URL[http://ir.imr.ac.cn/handle/321006/139231]  
专题金属研究所_中国科学院金属研究所
通讯作者Liu, Jianguo; Fan, Xinzhuang
作者单位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
推荐引用方式
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.

入库方式： OAI收割

来源：金属研究所

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