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Title: 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:
 [1];  [1];  [1];  [1];  [1];  [2];  [1]
  1. Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
  2. 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:
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. doi:10.1021/acsenergylett.6b00049.
Gong, Ke, Xu, Fei, Grunewald, Jonathan B., Ma, Xiaoya, Zhao, Yun, Gu, Shuang, and Yan, Yushan. Mon . "All-Soluble All-Iron Aqueous Redox-Flow Battery". United States. doi: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},
journal = {ACS Energy Letters},
number = 1,
volume = 1,
place = {United States},
year = {2016},
month = {5}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1021/acsenergylett.6b00049

Citation Metrics:
Cited by: 13 works
Citation information provided by
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Works referencing / citing this record:

An Fe III Azamacrocyclic Complex as a pH-Tunable Catholyte and Anolyte for Redox-Flow Battery Applications
journal, October 2017

  • Tsitovich, Pavel B.; Kosswattaarachchi, Anjula M.; Crawley, Matthew R.
  • Chemistry - A European Journal, Vol. 23, Issue 61
  • DOI: 10.1002/chem.201704381

Organic Functionalization of Polyoxovanadate–Alkoxide Clusters: Improving the Solubility of Multimetallic Charge Carriers for Nonaqueous Redox Flow Batteries
journal, November 2018

  • VanGelder, Lauren E.; Petel, Brittney E.; Nachtigall, Olaf
  • ChemSusChem, Vol. 11, Issue 23
  • DOI: 10.1002/cssc.201802029

Methanesulfonic acid-based electrode-decoupled vanadium–cerium redox flow battery exhibits significantly improved capacity and cycle life
journal, January 2019

  • Sankarasubramanian, Shrihari; Zhang, Yunzhu; Ramani, Vijay
  • Sustainable Energy & Fuels, Vol. 3, Issue 9
  • DOI: 10.1039/c9se00286c

An Fe III Azamacrocyclic Complex as a pH-Tunable Catholyte and Anolyte for Redox-Flow Battery Applications
journal, October 2017

  • Tsitovich, Pavel B.; Kosswattaarachchi, Anjula M.; Crawley, Matthew R.
  • Chemistry - A European Journal, Vol. 23, Issue 61
  • DOI: 10.1002/chem.201704381

Organic Functionalization of Polyoxovanadate–Alkoxide Clusters: Improving the Solubility of Multimetallic Charge Carriers for Nonaqueous Redox Flow Batteries
journal, November 2018

  • VanGelder, Lauren E.; Petel, Brittney E.; Nachtigall, Olaf
  • ChemSusChem, Vol. 11, Issue 23
  • DOI: 10.1002/cssc.201802029

Methanesulfonic acid-based electrode-decoupled vanadium–cerium redox flow battery exhibits significantly improved capacity and cycle life
journal, January 2019

  • Sankarasubramanian, Shrihari; Zhang, Yunzhu; Ramani, Vijay
  • Sustainable Energy & Fuels, Vol. 3, Issue 9
  • DOI: 10.1039/c9se00286c