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Redox Flow Batteries
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Redox Flow Batteries

A special issue of Energies (ISSN 1996-1073).

Deadline for manuscript submissions: closed (31 October 2016) | Viewed by 34552

Special Issue Editor

Dr. Xiaoliang Wei

E-Mail Website
Guest Editor
Energy & Environmental Directorate Pacific Northwest National Laboratory, 902 Battelle Blvd, Richland, WA 99352, USA
Interests: Polymer-ferroelectric nanoparticle composites for high energy density capacitor applications; Polymer-metallic nanoparticle composites for optical data storage applications

Special Issue Information

Dear Colleagues,

Electricity is central to the well-being of our society. Nowadays, critical changes have occurred to our current power infrastructure, including increasing demand of electricity, growing deployment of renewable energy technologies, and more social expectation of energy security. The redox flow battery is among the most promising energy storage technologies to address the challenges associated with modernizing the power grid. This vision has driven substantial research on development of advanced flow battery technologies that combine performance and cost merits. This Special Issue is aimed at presenting the state-of-the-art developments of redox flow batteries that address various challenges associated with facilitating technology maturation and broad commercialization. We cordially invite original contributions in the form of research articles, communications, reviews, and personal perspectives. The topics cover a wide range of subjects in redox flow battery research including aqueous and non-aqueous electrolyte chemistries, novel electrodes, new membranes, battery designs, diagnostic methods, stack development, computer modeling, cost analysis, and field analytics.

Dr. Xiaoliang Wei
Guest Editor

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Keywords

  • electrolyte
  • electrode
  • membrane
  • modeling
  • diagnostic
  • stack
  • cost analysis

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Published Papers (4 papers)

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Research

3863 KiB  
Article
Membrane Permeability Rates of Vanadium Ions and Their Effects on Temperature Variation in Vanadium Redox Batteries
by Liuyue Cao, Anders Kronander, Ao Tang, Da-Wei Wang and Maria Skyllas-Kazacos
Energies 2016, 9(12), 1058; https://doi.org/10.3390/en9121058 - 14 Dec 2016
Cited by 52 | Viewed by 7260
Abstract
The inevitable diffusion of vanadium ions across the membrane can cause considerable capacity loss and temperature increase in vanadium redox flow batteries (VRFBs) over long term operation. Reliable experimental data of the permeability rates of vanadium ions are needed for membrane selection and [...] Read more.
The inevitable diffusion of vanadium ions across the membrane can cause considerable capacity loss and temperature increase in vanadium redox flow batteries (VRFBs) over long term operation. Reliable experimental data of the permeability rates of vanadium ions are needed for membrane selection and for use in mathematical models to predict long-term behavior. In this paper a number of ion exchange membranes were selected for detailed evaluation using a modified approach to obtain more accurate permeation rates of V2+, V3+, VO2+ and VO2+ ions. Three commercial ion exchange membranes—FAP450, VB2 and F930—are investigated. The obtained diffusion coefficients are then employed in dynamic models to predict the thermal behavior under specific operating conditions. The simulation results prove that smaller and more balanced permeability rates of V2+ and VO2+ ions are more important to avoid large temperature increases in the cell stack during stand-by periods at high states-of-charge with pumps off. Full article
(This article belongs to the Special Issue Redox Flow Batteries)
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4364 KiB  
Article
Techno-Economic Modeling and Analysis of Redox Flow Battery Systems
by Jens Noack, Lars Wietschel, Nataliya Roznyatovskaya, Karsten Pinkwart and Jens Tübke
Energies 2016, 9(8), 627; https://doi.org/10.3390/en9080627 - 10 Aug 2016
Cited by 93 | Viewed by 13174
Abstract
A techno-economic model was developed to investigate the influence of components on the system costs of redox flow batteries. Sensitivity analyses were carried out based on an example of a 10 kW/120 kWh vanadium redox flow battery system, and the costs of the [...] Read more.
A techno-economic model was developed to investigate the influence of components on the system costs of redox flow batteries. Sensitivity analyses were carried out based on an example of a 10 kW/120 kWh vanadium redox flow battery system, and the costs of the individual components were analyzed. Particular consideration was given to the influence of the material costs and resistances of bipolar plates and energy storage media as well as voltages and electric currents. Based on the developed model, it was possible to formulate statements about the targeted optimization of a developed non-commercial vanadium redox flow battery system and general aspects for future developments of redox flow batteries. Full article
(This article belongs to the Special Issue Redox Flow Batteries)
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8110 KiB  
Article
Implementation and Validation of a Self-Consumption Maximization Energy Management Strategy in a Vanadium Redox Flow BIPV Demonstrator
by Luis Fialho, Tomás Fartaria, Luis Narvarte and Manuel Collares Pereira
Energies 2016, 9(7), 496; https://doi.org/10.3390/en9070496 - 29 Jun 2016
Cited by 8 | Viewed by 5297
Abstract
This paper presents the results of the implementation of a self-consumption maximization strategy tested in a real-scale Vanadium Redox Flow Battery (VRFB) (5 kW, 60 kWh) and Building Integrated Photovoltaics (BIPV) demonstrator (6.74 kWp). The tested energy management strategy aims to maximize the [...] Read more.
This paper presents the results of the implementation of a self-consumption maximization strategy tested in a real-scale Vanadium Redox Flow Battery (VRFB) (5 kW, 60 kWh) and Building Integrated Photovoltaics (BIPV) demonstrator (6.74 kWp). The tested energy management strategy aims to maximize the consumption of energy generated by a BIPV system through the usage of a battery. Whenever possible, the residual load is either stored in the battery to be used later or is supplied by the energy stored previously. The strategy was tested over seven days in a real-scale VRF battery to assess the validity of this battery to implement BIPV-focused energy management strategies. The results show that it was possible to obtain a self-consumption ratio of 100.0%, and that 75.6% of the energy consumed was provided by PV power. The VRFB was able to perform the strategy, although it was noticed that the available power (either to charge or discharge) varied with the state of charge. Full article
(This article belongs to the Special Issue Redox Flow Batteries)
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5898 KiB  
Article
Development of Integrally Molded Bipolar Plates for All-Vanadium Redox Flow Batteries
by Chih-Hsun Chang, Han-Wen Chou, Ning-Yih Hsu and Yong-Song Chen
Energies 2016, 9(5), 350; https://doi.org/10.3390/en9050350 - 7 May 2016
Cited by 15 | Viewed by 7891
Abstract
All-vanadium redox flow batteries (VRBs) are potential energy storage systems for renewable power sources because of their flexible design, deep discharge capacity, quick response time, and long cycle life. To minimize the energy loss due to the shunt current, in a traditional design, [...] Read more.
All-vanadium redox flow batteries (VRBs) are potential energy storage systems for renewable power sources because of their flexible design, deep discharge capacity, quick response time, and long cycle life. To minimize the energy loss due to the shunt current, in a traditional design, a flow field is machined on two electrically insulated frames with a graphite plate in between. A traditional bipolar plate (BP) of a VRB consists of many components, and thus, the assembly process is time consuming. In this study, an integrally molded BP is designed and fabricated to minimize the manufacturing cost. First, the effects of the mold design and injection parameters on frame formability were analyzed by simulation. Second, a new graphite plate design for integral molding was proposed, and finally, two integrally molded BPs were fabricated and compared. Results show that gate position significantly affects air traps and the maximum volume shrinkage occurs at the corners of a BP. The volume shrinkage can be reduced using a large graphite plate embedded within the frame. Full article
(This article belongs to the Special Issue Redox Flow Batteries)
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