Solid suspension flow batteries using earth abundant materials

Mubeen, Syed, Jun, Young-si, Lee, Joun and McFarland, Eric W. (2016) Solid suspension flow batteries using earth abundant materials. ACS Applied Materials and Interfaces, 8 3: 1759-1765. doi:10.1021/acsami.5b09515

Author Mubeen, Syed
Jun, Young-si
Lee, Joun
McFarland, Eric W.
Title Solid suspension flow batteries using earth abundant materials
Journal name ACS Applied Materials and Interfaces   Check publisher's open access policy
ISSN 1944-8252
Publication date 2016-01-27
Sub-type Article (original research)
DOI 10.1021/acsami.5b09515
Open Access Status Not Open Access
Volume 8
Issue 3
Start page 1759
End page 1765
Total pages 7
Place of publication Washington, DC, United States
Publisher American Chemical Society
Language eng
Subject 2500 Materials Science
Abstract The technical features of solid-electrode batteries (e.g., high energy density, relatively low capital cost ($/kWh)) and flow batteries (e.g., long cycle life, design flexibility) are highly complementary. It is therefore extremely desirable to integrate their advantages into a single storage device for large-scale energy storage applications where lifetime cost ($/kW-h/cycle) is an extremely important parameter. Here, we demonstrate a non-Li-based-flow battery concept that replaces the aqueous solution of redox-active molecules found in typical redox flow batteries with suspensions of hydrophilic carbon particles (“solid suspension electrodes”) coated with earth-abundant redox-active metals. The solid suspension electrodes charge by depositing earth-abundant redox-active metals onto the carbon particle suspension, which are then stripped during discharge operation. The electrical contact to the solid suspension electrodes is fed through fixed redox-inert hydrophobic carbon current collectors through “contact charge transfer” mechanism. The hydrophobicity of the current collectors prevents direct plating of redox-active metals onto their surfaces. The above concept was successfully used to demonstrate several non-Li-based battery chemistries including zinc–copper, zinc–manganese oxide, zinc–bromine, and zinc–sulfur, providing a pathway for potential applications in medium and large-scale electrical energy storage.
Keyword Charge transport
Energy storage
Flow batteries
Q-Index Code C1
Q-Index Status Provisional Code
Grant ID DMR-1121053
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
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