All-Soluble All-Iron Aqueous Redox-Flow Battery
Abstract
The rapid growth of intermittent renewable energy (e.g., wind and solar) demands low-cost and large-scale energy storage systems for smooth and reliable power output, where redox-flow batteries (RFBs) could find their niche. In this work, we introduce the first all-soluble all-iron RFB based on iron as the same redox-active element but with different coordination chemistries in alkaline aqueous system. The adoption of the same redox-active element largely alleviates the challenging problem of cross-contamination of metal ions in RFBs that use two redox-active elements. An all-soluble all-iron RFB is constructed by combining an iron–triethanolamine redox pair (i.e., [Fe(TEOA)OH]–/[Fe(TEOA)(OH)]2–) and an iron–cyanide redox pair (i.e., Fe(CN)6 3–/Fe(CN)6 4–), creating 1.34 V of formal cell voltage. Furthermore, good performance and stability have been demonstrated, after addressing some challenges, including the crossover of the ligand agent. As exemplified by the all-soluble all-iron flow battery, combining redox pairs of the same redox-active element with different coordination chemistries could extend the spectrum of RFBs.
- Authors:
-
- Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
- Department of Mechanical Engineering, Wichita State University, 1845 Fairmount Street, Wichita, Kansas 67260, United States
- Publication Date:
- Research Org.:
- Wichita State Univ., Wichita, KS (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1252078
- Alternate Identifier(s):
- OSTI ID: 1267248
- Grant/Contract Number:
- AR0000346
- Resource Type:
- Journal Article: Published Article
- Journal Name:
- ACS Energy Letters
- Additional Journal Information:
- Journal Name: ACS Energy Letters Journal Volume: 1 Journal Issue: 1; Journal ID: ISSN 2380-8195
- Publisher:
- American Chemical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 25 ENERGY STORAGE; 36 MATERIALS SCIENCE
Citation Formats
Gong, Ke, Xu, Fei, Grunewald, Jonathan B., Ma, Xiaoya, Zhao, Yun, Gu, Shuang, and Yan, Yushan. All-Soluble All-Iron Aqueous Redox-Flow Battery. United States: N. p., 2016.
Web. doi:10.1021/acsenergylett.6b00049.
Gong, Ke, Xu, Fei, Grunewald, Jonathan B., Ma, Xiaoya, Zhao, Yun, Gu, Shuang, & Yan, Yushan. All-Soluble All-Iron Aqueous Redox-Flow Battery. United States. https://doi.org/10.1021/acsenergylett.6b00049
Gong, Ke, Xu, Fei, Grunewald, Jonathan B., Ma, Xiaoya, Zhao, Yun, Gu, Shuang, and Yan, Yushan. 2016.
"All-Soluble All-Iron Aqueous Redox-Flow Battery". United States. https://doi.org/10.1021/acsenergylett.6b00049.
@article{osti_1252078,
title = {All-Soluble All-Iron Aqueous Redox-Flow Battery},
author = {Gong, Ke and Xu, Fei and Grunewald, Jonathan B. and Ma, Xiaoya and Zhao, Yun and Gu, Shuang and Yan, Yushan},
abstractNote = {The rapid growth of intermittent renewable energy (e.g., wind and solar) demands low-cost and large-scale energy storage systems for smooth and reliable power output, where redox-flow batteries (RFBs) could find their niche. In this work, we introduce the first all-soluble all-iron RFB based on iron as the same redox-active element but with different coordination chemistries in alkaline aqueous system. The adoption of the same redox-active element largely alleviates the challenging problem of cross-contamination of metal ions in RFBs that use two redox-active elements. An all-soluble all-iron RFB is constructed by combining an iron–triethanolamine redox pair (i.e., [Fe(TEOA)OH]–/[Fe(TEOA)(OH)]2–) and an iron–cyanide redox pair (i.e., Fe(CN)6 3–/Fe(CN)6 4–), creating 1.34 V of formal cell voltage. Furthermore, good performance and stability have been demonstrated, after addressing some challenges, including the crossover of the ligand agent. As exemplified by the all-soluble all-iron flow battery, combining redox pairs of the same redox-active element with different coordination chemistries could extend the spectrum of RFBs.},
doi = {10.1021/acsenergylett.6b00049},
url = {https://www.osti.gov/biblio/1252078},
journal = {ACS Energy Letters},
issn = {2380-8195},
number = 1,
volume = 1,
place = {United States},
year = {Mon May 09 00:00:00 EDT 2016},
month = {Mon May 09 00:00:00 EDT 2016}
}
Web of Science
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