COMPOSITE ELECTRODE FOR FLOW BATTERY
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United States of America Patent
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Issued Date -
Feb 4, 2016
app pub date -
Jul 10, 2015
filing date -
Jul 30, 2014
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Abstract
A composite electrode adapted for use in a flow battery stack system has a carbon felt stratum forming a semi-porous reaction zone and a carbon foam stratum forming a porous flow path zone. The composite electrode is less compressible than prior art electrodes having similar conductivity and specific surface areas. Flow battery stack systems employing the composite electrode operate with lower feed pressures, experiences a lower pressure drops across the electrodes, and realize improved electrical resistivity. Alternative embodiments provide electrical conductive elements and a current collector disposed on a surface of the composite electrode.
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