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

doi:10.1016/j.apenergy.2020.115252

IMR OpenIR

	Analyses and optimization of electrolyte concentration on the electrochemical performance of iron-chromium flow battery
	Wang, Shaoliang 1,2; Xu, Zeyu 1,2; Wu, Xiaoliang 1; Zhao, Huan 1; Zhao, Jinling 1; Liu, Jianguo 1,2; Yan, Chuanwei 1,2; Fan, Xinzhuang 1
通讯作者	Liu, Jianguo(jgliu@imr.ac.cn) ; Fan, Xinzhuang(mexzfan@gmail.com)
	2020-08-01
发表期刊	APPLIED ENERGY
ISSN	0306-2619
卷号	271 页码:8
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.
关键词	Iron-chromium flow battery Electrolyte Concentration optimization Electrochemical activity Battery performance
资助者	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
收录类别	SCI
语种	英语
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
WOS类目	Energy & Fuels ; Engineering, Chemical
WOS记录号	WOS:000540436500037
出版者	ELSEVIER SCI LTD
引用统计	被引频次：40[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/139235
专题	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.