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

Abstract

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:
Research Org.:
United Technologies Corporation, Farmington, CT (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1469114
Patent Number(s):
10044058
Application Number:
14/770,969
Assignee:
UNITED TECHNOLOGIES CORPORATION (Farmington, CT)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
DOE Contract Number:  
AR0000149
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Mar 15
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 42 ENGINEERING

Citation Formats

Darling, Robert Mason, Zaffou, Rachid, Perry, Michael L., and Walker, Craig R. Reactivation of flow battery electrode by exposure to oxidizing solution. United States: N. p., 2018. Web.
Darling, Robert Mason, Zaffou, Rachid, Perry, Michael L., & Walker, Craig R. Reactivation of flow battery electrode by exposure to oxidizing solution. United States.
Darling, Robert Mason, Zaffou, Rachid, Perry, Michael L., and Walker, Craig R. Tue . "Reactivation of flow battery electrode by exposure to oxidizing solution". United States. https://www.osti.gov/servlets/purl/1469114.
@article{osti_1469114,
title = {Reactivation of flow battery electrode by exposure to oxidizing solution},
author = {Darling, Robert Mason and Zaffou, Rachid and Perry, Michael L. and Walker, Craig R.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {8}
}

Works referenced in this record:

Redox flow cells for energy conversion
journal, September 2006


Modelling of performance of PEM fuel cells with conventional and interdigitated flow fields
journal, January 1999


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journal, August 2004


Review of bipolar plates in PEM fuel cells: Flow-field designs
journal, March 2005


Fuel Cell Systems Explained, Second Edition
book, February 2003


Redox Flow Battery
patent-application, February 2012


Influence of flow field design on the performance of a direct methanol fuel cell
journal, December 2000


Two-phase flow model of the cathode of PEM fuel cells using interdigitated flow fields
journal, October 2000


The Simulation of a PEMFC with an Interdigitated Flow Field Design
book, January 2005