skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Method and system to maintain electrolyte stability for all-iron redox flow batteries

Abstract

Methods and systems are provided which maintain the positive and negative electrolyte pH and stability of a redox flow battery through the use of electrochemical rebalancing cells. The electrochemical cells may be activated by applying an electrical load to affect changes to the pH of the electrolytes. The use of the electrochemical cells improves long term performance stability redox flow batteries by decreasing and/or eliminating Fe(OH)3 precipitation formation.

Inventors:
;
Issue Date:
Research Org.:
ESS Tech, Inc., Wilsonville, OR (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1525039
Patent Number(s):
10,230,125
Application Number:
14/588,225
Assignee:
ESS Tech, Inc. (Wilsonville, OR)
DOE Contract Number:  
AR0000261
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014-12-31
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Evans, Craig E., and Song, Yang. Method and system to maintain electrolyte stability for all-iron redox flow batteries. United States: N. p., 2019. Web.
Evans, Craig E., & Song, Yang. Method and system to maintain electrolyte stability for all-iron redox flow batteries. United States.
Evans, Craig E., and Song, Yang. Tue . "Method and system to maintain electrolyte stability for all-iron redox flow batteries". United States. https://www.osti.gov/servlets/purl/1525039.
@article{osti_1525039,
title = {Method and system to maintain electrolyte stability for all-iron redox flow batteries},
author = {Evans, Craig E. and Song, Yang},
abstractNote = {Methods and systems are provided which maintain the positive and negative electrolyte pH and stability of a redox flow battery through the use of electrochemical rebalancing cells. The electrochemical cells may be activated by applying an electrical load to affect changes to the pH of the electrolytes. The use of the electrochemical cells improves long term performance stability redox flow batteries by decreasing and/or eliminating Fe(OH)3 precipitation formation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {3}
}

Patent:

Save / Share: