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Title: Systems and methods for rebalancing redox flow battery electrolytes

Abstract

Various methods of rebalancing electrolytes in a redox flow battery system include various systems using a catalyzed hydrogen rebalance cell configured to minimize the risk of dissolved catalyst negatively affecting flow battery performance. Some systems described herein reduce the chance of catalyst contamination of RFB electrolytes by employing a mediator solution to eliminate direct contact between the catalyzed membrane and the RFB electrolyte. Other methods use a rebalance cell chemistry that maintains the catalyzed electrode at a potential low enough to prevent the catalyst from dissolving.

Inventors:
;
Issue Date:
Research Org.:
Enervault Corporation, Sunnyvale, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1172757
Patent Number(s):
8980454
Application Number:
14/207,795
Assignee:
Enervault Corporation (Sunnyvale, CA)
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:  
OE0000225
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Mar 13
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE

Citation Formats

Pham, Ai Quoc, and Chang, On Kok. Systems and methods for rebalancing redox flow battery electrolytes. United States: N. p., 2015. Web.
Pham, Ai Quoc, & Chang, On Kok. Systems and methods for rebalancing redox flow battery electrolytes. United States.
Pham, Ai Quoc, and Chang, On Kok. Tue . "Systems and methods for rebalancing redox flow battery electrolytes". United States. https://www.osti.gov/servlets/purl/1172757.
@article{osti_1172757,
title = {Systems and methods for rebalancing redox flow battery electrolytes},
author = {Pham, Ai Quoc and Chang, On Kok},
abstractNote = {Various methods of rebalancing electrolytes in a redox flow battery system include various systems using a catalyzed hydrogen rebalance cell configured to minimize the risk of dissolved catalyst negatively affecting flow battery performance. Some systems described herein reduce the chance of catalyst contamination of RFB electrolytes by employing a mediator solution to eliminate direct contact between the catalyzed membrane and the RFB electrolyte. Other methods use a rebalance cell chemistry that maintains the catalyzed electrode at a potential low enough to prevent the catalyst from dissolving.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {3}
}

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Works referenced in this record:

Potentiostatic Electrodeposition of Pt Nanoparticles on Carbon Black
journal, January 2011