Membrane-less hydrogen bromine flow battery
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Bazant_Membrane-less hydrogen.pdf
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1.5 MB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Braff, William
Bazant, Martin Z.
Buie, Cullen R.
Date Issued
August 2013
Journal
Nature Communications
Publisher
Nature Publishing Group
Citation
Braff, William A., Martin Z. Bazant, and Cullen R. Buie. “Membrane-Less Hydrogen Bromine Flow Battery.” Nature Communications 4 (August 16, 2013).
Version
Original manuscript
Abstract
In order for the widely discussed benefits of flow batteries for electrochemical energy storage to be applied at large scale, the cost of the electrochemical stack must come down substantially. One promising avenue for reducing stack cost is to increase the system power density while maintaining efficiency, enabling smaller stacks. Here we report on a membrane-less hydrogen bromine laminar flow battery as a potential high-power density solution. The membrane-less design enables power densities of 0.795 W cm[superscript −2] at room temperature and atmospheric pressure, with a round-trip voltage efficiency of 92% at 25% of peak power. Theoretical solutions are also presented to guide the design of future laminar flow batteries. The high-power density achieved by the hydrogen bromine laminar flow battery, along with the potential for rechargeable operation, will translate into smaller, inexpensive systems that could revolutionize the fields of large-scale energy storage and portable power systems.
MIT Department
Massachusetts Institute of Technology. Department of Chemical Engineering
Massachusetts Institute of Technology. Department of Mechanical Engineering
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1038/ncomms3346
