Special Issue "Redox Flow Batteries for Large-Scale Energy Storage"

A special issue of Batteries (ISSN 2313-0105).

Deadline for manuscript submissions: 25 October 2019

Special Issue Editors

Guest Editor
Dr. Tuti Mariana Lim

School of Civil and Environmental Engineering, Nanyang Technological University (NTU), Singapore 639798, Singapore
Website | E-Mail
Interests: energy storage technologies; materials recovery; advanced oxidation technologies (AOTs); hybrid membrane-AOTs
Guest Editor
Dr. Arjun Bhattarai

Energy Research Institute, Nanyang Technological University; V-Flow Tech Pte. Ltd., Singapore
Website 1 | Website 2 | E-Mail
Interests: Energy storage, vanadium redox flow battery
Guest Editor
Dr. Zhongbao Wei

Energy Research Institute @ NTU (ERIAN), Nanyang Technological University, Singapore
Website | E-Mail
Interests: lithium-ion batteries; all-vanadium redox flow battery; battery management; system identification; condition monitoring; battery charge control

Special Issue Information

Dear Colleagues,

Renewable energy sources such as solar and wind power have shown great promise to relieve the dependence on fossil fuels, thereby achieving a low-carbon society. However, due to the intermittent nature of renewables, the power generated cannot provide stable and consistent power delivery. Thus, energy storage technologies, battery technologies in particular, are needed to address the challenges associated with modernizing the power grid. Amongst different battery technologies, flow batteries are regarded as the most promising candidates for large-scale energy storage systems, offering long hours of storage capacity.

This vision has driven intensive research into the development of flow battery technologies that combine performance and cost merits. In addition, the exploration of suitable battery management and control strategies is also key to enhancing the safety, reliability, and cost efficiency of the battery system. This Special Issue therefore seeks to synergize the state-of-the-art developments in flow batteries at both the cell and stack level, simulation, management and control. We cordially invite papers on technical developments, reviews, communications, and case studies that reflect the cutting-edge progress in this field.

Topics of interest of this special issue include, but are not limited to:

  • Reaction mechanisms;
  • Low cost membrane materials with excellent stability;
  • Electrode and membrane modification;
  • Electrolyte optimization and production;
  • Cost analysis and field analytics;
  • Methods for battery performance analysis and material characterization;
  • Modeling, simulation, and optimization for both cell design and system integration;
  • Battery management system.

Dr. Tuti Mariana Lim
Dr. Arjun Bhattarai
Dr. Zhongbao Wei
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Batteries is an international peer-reviewed open access quarterly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 350 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Flow battery
  • Electrolyte, membrane
  • Electrode, stack cell
  • Battery cost analysis
  • Battery modeling
  • Battery management system

Published Papers (2 papers)

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Research

Open AccessArticle
Vanadium Electrolyte for All-Vanadium Redox-Flow Batteries: The Effect of the Counter Ion
Received: 17 December 2018 / Revised: 8 January 2019 / Accepted: 13 January 2019 / Published: 18 January 2019
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Abstract
In this study, 1.6 M vanadium electrolytes in the oxidation forms V(III) and V(V) were prepared from V(IV) in sulfuric (4.7 M total sulphate), V(IV) in hydrochloric (6.1 M total chloride) acids, as well as from 1:1 mol mixture of V(III) and V(IV) [...] Read more.
In this study, 1.6 M vanadium electrolytes in the oxidation forms V(III) and V(V) were prepared from V(IV) in sulfuric (4.7 M total sulphate), V(IV) in hydrochloric (6.1 M total chloride) acids, as well as from 1:1 mol mixture of V(III) and V(IV) (denoted as V3.5+) in hydrochloric (7.6 M total chloride) acid. These electrolyte solutions were investigated in terms of performance in vanadium redox flow battery (VRFB). The half-wave potentials of the V(III)/V(II) and V(V)/V(IV) couples, determined by cyclic voltammetry, and the electronic spectra of V(III) and V(IV) electrolyte samples, are discussed to reveal the effect of electrolyte matrix on charge-discharge behavior of a 40 cm2 cell operated with 1.6 M V3.5+ electrolytes in sulfuric and hydrochloric acids. Provided that the total vanadium concentration and the conductivity of electrolytes are comparable for both acids, respective energy efficiencies of 77% and 72–75% were attained at a current density of 50 mA∙cm−2. All electrolytes in the oxidation state V(V) were examined for chemical stability at room temperature and +45 °C by titrimetric determination of the molar ratio V(V):V(IV) and total vanadium concentration. Full article
(This article belongs to the Special Issue Redox Flow Batteries for Large-Scale Energy Storage)
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Open AccessArticle
Investigation of Reactant Conversion in the Vanadium Redox Flow Battery Using Spatially Resolved State of Charge Mapping
Received: 8 November 2018 / Revised: 10 December 2018 / Accepted: 13 December 2018 / Published: 1 January 2019
Cited by 1 | PDF Full-text (42610 KB) | HTML Full-text | XML Full-text
Abstract
Segmented cells enable real time visualization of the flow distribution in vanadium redox flow batteries by local current or voltage mapping. The lateral flow of current within thick porous electrodes, however, impairs the local resolution of the detected signals. In this study, the [...] Read more.
Segmented cells enable real time visualization of the flow distribution in vanadium redox flow batteries by local current or voltage mapping. The lateral flow of current within thick porous electrodes, however, impairs the local resolution of the detected signals. In this study, the open circuit voltage immediately after the cessation of charge/discharge is used for the mapping of reactant conversion. This quantity is not hampered by lateral flow of current and can be conveniently transformed to the corresponding state of charge. The difference between theoretically calculated and experimentally determined conversion (change in the state of charge) across the electrode is used to determine local variations in conversion efficiency. The method is validated by systematic experiments using electrodes with different modifications, varying current densities and flow configurations. The procedure and the interpretation are simple and scalable to any size of flow cell. Full article
(This article belongs to the Special Issue Redox Flow Batteries for Large-Scale Energy Storage)
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