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Title: Method and system for rebalancing electrolytes in a redox flow battery system

Abstract

A method of rebalancing electrolytes in a redox flow battery system comprises directing hydrogen gas generated on the negative side of the redox flow battery system to a catalyst surface, and fluidly contacting the hydrogen gas with an electrolyte comprising a metal ion at the catalyst surface, wherein the metal ion is chemically reduced by the hydrogen gas at the catalyst surface, and a state of charge of the electrolyte and pH of the electrolyte remain substantially balanced.

Inventors:
;
Issue Date:
Research Org.:
ESS Tech, Inc., Portland, OR (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1531961
Patent Number(s):
9509011
Application Number:
14/199,794
Assignee:
ESS Tech, Inc. (Portland, OR)
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:  
AR0000261
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014-03-06
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Evans, Craig E., and Song, Yang. Method and system for rebalancing electrolytes in a redox flow battery system. United States: N. p., 2016. Web.
Evans, Craig E., & Song, Yang. Method and system for rebalancing electrolytes in a redox flow battery system. United States.
Evans, Craig E., and Song, Yang. Tue . "Method and system for rebalancing electrolytes in a redox flow battery system". United States. https://www.osti.gov/servlets/purl/1531961.
@article{osti_1531961,
title = {Method and system for rebalancing electrolytes in a redox flow battery system},
author = {Evans, Craig E. and Song, Yang},
abstractNote = {A method of rebalancing electrolytes in a redox flow battery system comprises directing hydrogen gas generated on the negative side of the redox flow battery system to a catalyst surface, and fluidly contacting the hydrogen gas with an electrolyte comprising a metal ion at the catalyst surface, wherein the metal ion is chemically reduced by the hydrogen gas at the catalyst surface, and a state of charge of the electrolyte and pH of the electrolyte remain substantially balanced.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {11}
}