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Title: Reactivation of flow battery electrode by exposure to oxidizing solution

A flow battery includes at least a cell that has a first electrode, a second electrode and an electrolyte separator layer arranged between the electrodes. A supply/storage system is external of the cell and includes a first vessel fluidly connected in a first loop with the first electrode and a second vessel fluidly connected in a second loop with the second electrode. The first loop and the second loop are isolated from each other. The supply/storage system is configured to fluidly connect the first loop and the second loop to move a second liquid electrolyte from the second vessel into a first liquid electrolyte in the first vessel responsive to a half-cell potential at the first electrode being less than a defined threshold half-cell potential.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
1469114
Assignee:
UNITED TECHNOLOGIES CORPORATION (Farmington, CT) ARPA-E
Patent Number(s):
10,044,058
Application Number:
14/770,969
Contract Number:
AR0000149
Resource Relation:
Patent File Date: 2013 Mar 15
Research Org:
United Technologies Corporation, Farmington, CT (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 42 ENGINEERING