Journal
JOURNAL OF POWER SOURCES
Volume 341, Issue -, Pages 36-45Publisher
ELSEVIER
DOI: 10.1016/j.jpowsour.2016.11.062
Keywords
Flow battery; Para-benzoquinone; Hybrid; Low cost; Membrane-less
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The capital cost of conventional redox flow batteries is relatively high (>USD$ 200/kWh) due to the use of expensive active materials and ion-exchange membranes. This paper presents a membrane-less hybrid organic-inorganic flow battery based on the low-cost elements zinc (92.7% with the use of carbon felt electrodes. In the presence of a fully oxidized active species close to its solubility limit, dissolution of the deposited anode is relatively slow (<2.37 g h(-1) cm(-2)) with an equivalent corrosion current density of <1.9 mA cm(-2). In a parallel plate flow configuration, the resulting battery was charge-discharge cycled at 30 mA cm(-2) with average coulombic and energy efficiencies of c.a. 71.8 and c.a. 42.0% over 20 cycles, respectively. (C) 2016 Published by Elsevier B.V.
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