Proceedings of the International Renewable Energy Storage Conference (IRES 2022)

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Theoretical and Experimental Investigation of Voltage Current Characteristic, Losses and Self-discharge of a Vanadium Redox Flow Battery System

Authors
Richard Beyer1, *, Thilo Bocklisch1
1Chair of Energy Storage Systems, Technische Universität Dresden, Dresden, Germany
*Corresponding author. Email: richard_beyer@tu-dresden.de
Corresponding Author
Richard Beyer
Available Online 25 May 2023.
DOI
10.2991/978-94-6463-156-2_5How to use a DOI?
Keywords
Vanadium Redox Flow Battery System (VRFBS); voltage current characteristic; self-discharge; shunt current; vanadium diffusion; energy storage; modeling
Abstract

The paper describes results of the theoretical and experimental investigation and the modeling of a 5 kW and 15 kWh vanadium redox flow battery system (VRFBS). The first part of the paper presents the dependence of the voltage-current characteristics on state of charge (SOC), temperature, and electrolyte flow rate, as well as models for the stack overvoltages based on current literature. Furthermore, losses due to shunt currents, vanadium diffusion and power consumption of peripheral equipment are discussed. The second part of the paper presents new results of experimental investigations and the modeling of the self-discharge behavior of the VRFBS during the standby phase (open circuit operation, when no electric and electrolyte currents present) and the phase directly after restart of the VRFBS.

Copyright
© 2023 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the International Renewable Energy Storage Conference (IRES 2022)
Series
Atlantis Highlights in Engineering
Publication Date
25 May 2023
ISBN
10.2991/978-94-6463-156-2_5
ISSN
2589-4943
DOI
10.2991/978-94-6463-156-2_5How to use a DOI?
Copyright
© 2023 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Richard Beyer
AU  - Thilo Bocklisch
PY  - 2023
DA  - 2023/05/25
TI  - Theoretical and Experimental Investigation of Voltage Current Characteristic, Losses and Self-discharge of a Vanadium Redox Flow Battery System
BT  - Proceedings of the International Renewable Energy Storage  Conference (IRES 2022)
PB  - Atlantis Press
SP  - 47
EP  - 62
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-156-2_5
DO  - 10.2991/978-94-6463-156-2_5
ID  - Beyer2023
ER  -