A zinc–iron redox-flow battery under $100 per kW h of system capital cost

Redox flow batteries (RFBs) are one of the most promising scalable electricity-storage systems to address the intermittency issues of renewable energy sources such as wind and solar. The prerequisite for RFBs to be economically viable and widely employed is their low cost. Here we present a new zinc...

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Main Authors: Gong, Ke, Ma, Xiaoya, Kuttler, Kevin J., Grunewald, Jonathan B., Yeager, Kelsey L., Bazant, Martin Z., Gu, Shuang, Yan, Yushan, Conforti, Kameron Michael
Other Authors: Massachusetts Institute of Technology. Department of Chemical Engineering
Format: Article
Language:en_US
Published: Royal Society of Chemistry 2016
Online Access:http://hdl.handle.net/1721.1/102312
https://orcid.org/0000-0002-0782-3048
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author Gong, Ke
Ma, Xiaoya
Kuttler, Kevin J.
Grunewald, Jonathan B.
Yeager, Kelsey L.
Bazant, Martin Z.
Gu, Shuang
Yan, Yushan
Conforti, Kameron Michael
author2 Massachusetts Institute of Technology. Department of Chemical Engineering
author_facet Massachusetts Institute of Technology. Department of Chemical Engineering
Gong, Ke
Ma, Xiaoya
Kuttler, Kevin J.
Grunewald, Jonathan B.
Yeager, Kelsey L.
Bazant, Martin Z.
Gu, Shuang
Yan, Yushan
Conforti, Kameron Michael
author_sort Gong, Ke
collection MIT
description Redox flow batteries (RFBs) are one of the most promising scalable electricity-storage systems to address the intermittency issues of renewable energy sources such as wind and solar. The prerequisite for RFBs to be economically viable and widely employed is their low cost. Here we present a new zinc–iron (Zn–Fe) RFB based on double-membrane triple-electrolyte design that is estimated to have under $100 per kW h system capital cost. Such a low cost is achieved by a combination of inexpensive redox materials (i.e., zinc and iron) and high cell performance (e.g., 676 mW cm[superscript −2] power density). Engineering of the cell structure is found to be critical to enable the high power density. Our cost model shows that a Zn–Fe RFB demonstrates the lowest cost among some notable RFBs and could reach the 2023 cost target set by the U.S. Department of Energy ($150 per kW h).
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spelling mit-1721.1/1023122022-09-30T15:39:22Z A zinc–iron redox-flow battery under $100 per kW h of system capital cost Gong, Ke Ma, Xiaoya Kuttler, Kevin J. Grunewald, Jonathan B. Yeager, Kelsey L. Bazant, Martin Z. Gu, Shuang Yan, Yushan Conforti, Kameron Michael Massachusetts Institute of Technology. Department of Chemical Engineering Massachusetts Institute of Technology. Department of Mathematics Bazant, Martin Z. Conforti, Kameron Michael Bazant, Martin Z. Redox flow batteries (RFBs) are one of the most promising scalable electricity-storage systems to address the intermittency issues of renewable energy sources such as wind and solar. The prerequisite for RFBs to be economically viable and widely employed is their low cost. Here we present a new zinc–iron (Zn–Fe) RFB based on double-membrane triple-electrolyte design that is estimated to have under $100 per kW h system capital cost. Such a low cost is achieved by a combination of inexpensive redox materials (i.e., zinc and iron) and high cell performance (e.g., 676 mW cm[superscript −2] power density). Engineering of the cell structure is found to be critical to enable the high power density. Our cost model shows that a Zn–Fe RFB demonstrates the lowest cost among some notable RFBs and could reach the 2023 cost target set by the U.S. Department of Energy ($150 per kW h). United States. Dept. of Energy (ARPA-E Award DE-AR0000346) 2016-04-28T13:27:47Z 2016-04-28T13:27:47Z 2015-09 2015-07 Article http://purl.org/eprint/type/JournalArticle 1754-5692 1754-5706 http://hdl.handle.net/1721.1/102312 Gong, Ke, Xiaoya Ma, Kameron M. Conforti, Kevin J. Kuttler, Jonathan B. Grunewald, Kelsey L. Yeager, Martin Z. Bazant, Shuang Gu, and Yushan Yan. “A Zinc–iron Redox-Flow Battery Under $100 Per kW h of System Capital Cost.” Energy Environ. Sci. 8, no. 10 (2015): 2941–2945. © 2015 The Royal Society of Chemistry https://orcid.org/0000-0002-0782-3048 en_US http://dx.doi.org/10.1039/c5ee02315g Energy and Environmental Science Creative Commons Attribution-NonCommercial 3.0 Unported licence http://creativecommons.org/licenses/by-nc/3.0/ application/pdf Royal Society of Chemistry Prof. Bazant via Erja Kajosalo
spellingShingle Gong, Ke
Ma, Xiaoya
Kuttler, Kevin J.
Grunewald, Jonathan B.
Yeager, Kelsey L.
Bazant, Martin Z.
Gu, Shuang
Yan, Yushan
Conforti, Kameron Michael
A zinc–iron redox-flow battery under $100 per kW h of system capital cost
title A zinc–iron redox-flow battery under $100 per kW h of system capital cost
title_full A zinc–iron redox-flow battery under $100 per kW h of system capital cost
title_fullStr A zinc–iron redox-flow battery under $100 per kW h of system capital cost
title_full_unstemmed A zinc–iron redox-flow battery under $100 per kW h of system capital cost
title_short A zinc–iron redox-flow battery under $100 per kW h of system capital cost
title_sort zinc iron redox flow battery under 100 per kw h of system capital cost
url http://hdl.handle.net/1721.1/102312
https://orcid.org/0000-0002-0782-3048
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