IMR OpenIR
A dopamine-based high redox potential catholyte for aqueous organic redox flow battery
Liu, Quanbing; Li, Xiangrong; Yan, Chuanwei; Tang, Ao
2020-06-01
Source PublicationJOURNAL OF POWER SOURCES
Volume460
AbstractOrganic redox flow batteries with many technological advantages over conventional metal-based flow batteries represent a new generation flow battery technology for electric grid storage applications. Herein, we report a dopamine-based catholyte with a high redox potential of 0.77 V for aqueous organic redox flow batteries. In sulfuric acid, the dopamine exhibits an excellent combination of good electrochemical reversibility and high solubility up to 0.7 M, and undergoes a fast two-electron transfer redox reaction with a rate constant of 1.82 x 10(-3) cm s(-1). Paired with V3+/V2+, the dopamine-vanadium full cell delivers an average round-trip efficiency of 65% at 20 mA cm(-2) and achieves a capacity retention of 50% for 100 consecutive charge-discharge cycles. Moreover, an energy efficiency of 51.3% can be steadily realized at an increased current density of 60 mA cm(-2), while an enhanced capacity retention over extended 200 charge-discharge cycles is also observed by introducing saturated ammonium chloride into sulfuric acid. The proposed dopamine-based catholyte not only successfully offers a new alternative for aqueous organic redox flow batteries, but its performance can be also further promoted by rational molecule design and optimizations in mass transfer and electrode kinetics.
DOI10.1016/j.jpowsour.2020.228124
WOS IDWOS:000528272200015
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/82815
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Liu, Quanbing,Li, Xiangrong,Yan, Chuanwei,et al. A dopamine-based high redox potential catholyte for aqueous organic redox flow battery[J]. JOURNAL OF POWER SOURCES,2020,460.
APA Liu, Quanbing,Li, Xiangrong,Yan, Chuanwei,&Tang, Ao.(2020).A dopamine-based high redox potential catholyte for aqueous organic redox flow battery.JOURNAL OF POWER SOURCES,460.
MLA Liu, Quanbing,et al."A dopamine-based high redox potential catholyte for aqueous organic redox flow battery".JOURNAL OF POWER SOURCES 460(2020).
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Liu, Quanbing]'s Articles
[Li, Xiangrong]'s Articles
[Yan, Chuanwei]'s Articles
Baidu academic
Similar articles in Baidu academic
[Liu, Quanbing]'s Articles
[Li, Xiangrong]'s Articles
[Yan, Chuanwei]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Liu, Quanbing]'s Articles
[Li, Xiangrong]'s Articles
[Yan, Chuanwei]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.