Redox and plating electrode systems for an all-iron hybrid flow battery

Patent · Tue Apr 04 00:00:00 EDT 2017

OSTI ID:1531981

Evans, Craig; Song, Yang

A system for a flow cell for a hybrid flow battery, comprising: a redox plate comprising a plurality of electrolyte flow channels; conductive inserts attached to the redox plate between adjacent electrolyte flow channels; a redox electrode attached to a surface of the redox plate; a plating electrode, comprising: a plurality of folded fins with an oscillating cross-section, the plurality of folded fins comprising: a first planar surface; a second planar surface, parallel to the first planar surface; a plurality of ridges intersecting the first and second planar surfaces such that the plurality of ridges divide the first planar surface into a first plurality of strips, and divide the second planar surface into a second plurality of strips; and a membrane barrier. In this way, the capacity and performance of hybrid flow batteries may be maximized, through decreasing the reaction kinetics, mass transport and ohmic resistance losses at both electrodes.

• Research Organization: ESS Tech, Inc., Portland, OR (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AR0000261
• Assignee: ESS Tech, Inc. (Portland, OR)
• Patent Number(s): 9,614,244
• Application Number: 14/019,488
• OSTI ID: 1531981
• Resource Relation: Patent File Date: 2013-09-05
• Country of Publication: United States
• Language: English