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Title: In operando, non-invasive state-of-charge monitoring for redox flow batteries

Abstract

This document describes techniques and systems for in operando, non-invasive SOC monitoring of redox flow batteries. The described techniques and systems allow for accurate, inexpensive, portable, and real-time methods to measure the SOC of redox flow batteries. System operators can monitor the SOC by measuring an acoustic attenuation coefficient of the electrolyte in the redox flow battery. The acoustic attenuation coefficient is measured using an ultrasonic transducer attached to a probing cell, which is connected to an electrolyte flow of a redox flow battery. The acoustic attenuation coefficient provides an accurate, real-time SOC measurement that is generally insensitive to varying operational temperatures of the electrolyte solution.

Inventors:
; ; ; ; ; ; ;
Issue Date:
Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1924990
Patent Number(s):
11415552
Application Number:
16/893,953
Assignee:
Battelle Memorial Institute (Richland, WA)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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DOE Contract Number:  
AC05-76RL01830
Resource Type:
Patent
Resource Relation:
Patent File Date: 06/05/2020
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE

Citation Formats

Deng, Zhiqun, Wang, Wei, Zang, Xiaoqin, Yan, Litao, Yang, Yang, Pan, Huilin, Nie, Zimin, and Lu, Jun. In operando, non-invasive state-of-charge monitoring for redox flow batteries. United States: N. p., 2022. Web.
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Deng, Zhiqun, Wang, Wei, Zang, Xiaoqin, Yan, Litao, Yang, Yang, Pan, Huilin, Nie, Zimin, & Lu, Jun. In operando, non-invasive state-of-charge monitoring for redox flow batteries. United States.
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Deng, Zhiqun, Wang, Wei, Zang, Xiaoqin, Yan, Litao, Yang, Yang, Pan, Huilin, Nie, Zimin, and Lu, Jun. Tue . "In operando, non-invasive state-of-charge monitoring for redox flow batteries". United States. https://www.osti.gov/servlets/purl/1924990.
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@article{osti_1924990,
title = {In operando, non-invasive state-of-charge monitoring for redox flow batteries},
author = {Deng, Zhiqun and Wang, Wei and Zang, Xiaoqin and Yan, Litao and Yang, Yang and Pan, Huilin and Nie, Zimin and Lu, Jun},
abstractNote = {This document describes techniques and systems for in operando, non-invasive SOC monitoring of redox flow batteries. The described techniques and systems allow for accurate, inexpensive, portable, and real-time methods to measure the SOC of redox flow batteries. System operators can monitor the SOC by measuring an acoustic attenuation coefficient of the electrolyte in the redox flow battery. The acoustic attenuation coefficient is measured using an ultrasonic transducer attached to a probing cell, which is connected to an electrolyte flow of a redox flow battery. The acoustic attenuation coefficient provides an accurate, real-time SOC measurement that is generally insensitive to varying operational temperatures of the electrolyte solution.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2022},
month = {8}
}
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Works referenced in this record:

Determination of Characteristics of Electrochemical Systems Using Acoustic Signals
patent-application, March 2019

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