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Title: Monitoring the State-of-Charge of a Vanadium Redox Flow Battery with the Acoustic Attenuation Coefficient: An In Operando Noninvasive Method

Journal Article · · Small Methods

Abstract Redox flow battery technology has been increasingly recognized as a promising option for large‐scale grid energy storage. Access to high‐fidelity information on the health status of the electrolyte, including the state‐of‐charge (SOC), is vital to maintaining optimal and economical battery operation. In this study, an ultrasonic probing cell that can be used to measure SOC in real time is designed. This unprecedented, new measurement approach overcomes the influence of varying temperatures by measuring the acoustic attenuation coefficient of the redox flow battery electrolyte online and noninvasively. The new approach is used to estimate the SOC of a vanadium redox flow battery in operando from measured acoustic properties. The accuracy of the SOC estimated from the acoustic properties is validated against SOC calculated by the titration method. The results show that the acoustic attenuation coefficient is a robust parameter for SOC monitoring, with a maximum error of 4.8% and extremely low sensitivity to temperature, while sound speed appears to be less accurate in the benchmark‐inference method, with a maximum error of 22.5% and high sensitivity to temperature. The acoustic measurement approach has great potential for inexpensive real‐time SOC monitoring of redox flow battery operations.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Water Power Technologies Office
Grant/Contract Number:
AC05-76RL01830; 57558
OSTI ID:
1582585
Alternate ID(s):
OSTI ID: 1558722
Report Number(s):
PNNL-SA-141602
Journal Information:
Small Methods, Vol. 3, Issue 12; ISSN 2366-9608
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 12 works
Citation information provided by
Web of Science

References (41)

Electrochemical-acoustic time of flight: in operando correlation of physical dynamics with battery charge and health journal January 2015
Investigation of chemical sound absorption in seawater by the resonator method: Part I journal July 1980
A novel ultrasonic velocity sensing approach to monitoring state of charge of vanadium redox flow battery journal November 2016
Study of vanadium(IV) species and corresponding electrochemical performance in concentrated sulfuric acid media journal November 2011
Estimation of State-of-Charge for Zinc-Bromine Flow Batteries by In Situ Raman Spectroscopy journal January 2017
Investigation of the use of electrolyte viscosity for online state-of-charge monitoring design in vanadium redox flow battery journal February 2018
Spectroscopic Study of Vanadium Electrolytes in Vanadium Redox Flow Battery (VRFB) journal April 2013
Capacity Decay and Remediation of Nafion-based All-Vanadium Redox Flow Batteries journal December 2012
Towards Optical Monitoring of Vanadium Redox Flow Batteries (VRFBs): An Investigation of the Underlying Spectroscopy journal January 2014
Monitoring the State of Charge of Operating Vanadium Redox Flow Batteries conference January 2012
State-of-charge monitoring for redox flow batteries: A symmetric open-circuit cell approach journal May 2019
Recent Progress in Redox Flow Battery Research and Development journal September 2012
Progress and directions in low-cost redox-flow batteries for large-scale energy storage journal January 2017
ZrO 2 -Nanoparticle-Modified Graphite Felt: Bifunctional Effects on Vanadium Flow Batteries journal June 2016
Bismuth Nanoparticle Decorating Graphite Felt as a High-Performance Electrode for an All-Vanadium Redox Flow Battery journal February 2013
Investigation on V(IV)/V(V) species in a vanadium redox flow battery journal August 2004
Probing lithium-ion batteries' state-of-charge using ultrasonic transmission – Concept and laboratory testing journal March 2017
State of charge monitoring for vanadium redox flow batteries by the transmission spectra of V(IV)/V(V) electrolytes journal September 2012
Influence of organic additives on electrochemical properties of the positive electrolyte for all-vanadium redox flow battery journal September 2012
Batteries for Large-Scale Stationary Electrical Energy Storage journal January 2010
An overview of the environmental, economic, and material developments of the solar and wind sources coupled with the energy storage systems: Environmental, Economic, Material analysis of PV and wind journal May 2017
Nanorod Niobium Oxide as Powerful Catalysts for an All Vanadium Redox Flow Battery journal December 2013
Low-frequency sound absorption in the ocean journal January 1978
Electrical Energy Storage for the Grid: A Battery of Choices journal November 2011
Measuring the state of charge of the electrolyte solution in a vanadium redox flow battery using a four-pole cell device journal December 2015
Material design and engineering of next-generation flow-battery technologies journal November 2016
Spectroscopic Measurement of State of Charge in Vanadium Flow Batteries with an Analytical Model of V IV -V V Absorbance journal September 2015
Sound Absorption in Sea Water journal June 1962
Precision dynamic equivalent circuit model of a Vanadium Redox Flow Battery and determination of circuit parameters for its optimal performance in renewable energy applications journal August 2018
State of charge monitoring of vanadium redox flow batteries using half cell potentials and electrolyte density journal February 2018
A New Fe/V Redox Flow Battery Using a Sulfuric/Chloric Mixed-Acid Supporting Electrolyte journal February 2012
Analysis and measurement of the electrolyte imbalance in a vanadium redox flow battery journal May 2015
Performance characterization of a vanadium redox flow battery at different operating parameters under a standardized test-bed system journal January 2015
State of charge monitoring methods for vanadium redox flow battery control journal October 2011
An on-line spectroscopic monitoring system for the electrolytes in vanadium redox flow batteries journal January 2015
Detection of capacity imbalance in vanadium electrolyte and its electrochemical regeneration for all-vanadium redox-flow batteries journal January 2016
Tunable Oxygen Functional Groups as Electrocatalysts on Graphite Felt Surfaces for All-Vanadium Flow Batteries journal May 2016
Boosting vanadium flow battery performance by Nitrogen-doped carbon nanospheres electrocatalyst journal October 2016
Open circuit voltage of vanadium redox flow batteries: Discrepancy between models and experiments journal April 2011
Sound absorption in sea water journal June 1977
Monitoring the State of Charge of Operating Vanadium Redox Flow Batteries journal August 2011