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Dissertations / Theses on the topic 'All-vanadium redox flow batteries'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Al-Fetlawi, Hassan. "Modelling and simulation of all-vanadium redox flow batteries." Thesis, University of Southampton, 2011. https://eprints.soton.ac.uk/181523/.

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Properties and applications of all-vanadium redox flow batteries are discussed and a two-dimensional model is developed. The model, which is based on a comprehensive description of mass, charge, energy and momentum transport and conservation, is combined with a global kinetic model for reactions involving vanadium species. Gas evolving reactions are then incorporated into the modelling frame work. Bubble formation as a result of evolution at the negative/positive electrode is included in the model, taking into account the attendant reduction in the liquid volume and the transfer of momentum be

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2

Zimmerman, Nathan. "Vanadium Redox Flow Battery : Sizing of VRB in electrified heavy construction equipment." Thesis, Mälardalens högskola, Framtidens energi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-26918.

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In an effort to reduce global emissions by electrifying vehicles and machines with internal combustion engines has led to the development of batteries that are more powerful and efficient than the common lead acid battery. One of the most popular batteries being used for such an installation is lithium ion, but due to its short effective usable lifetime, charging time, and costs has driven researcher to other technologies to replace it. Vanadium redox flow batteries have come into the spotlight recently as a means of replacing rechargeable batteries in electric vehicles and has previously be

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3

Derr, Igor [Verfasser]. "Electrochemical degradation and chemical aging of carbon felt electrodes in all-vanadium redox flow batteries / Igor Derr." Berlin : Freie Universität Berlin, 2017. http://d-nb.info/1135184836/34.

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4

Söderkvist, Christoffer. "Vanadium for flow batteries : a design study." Thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-26454.

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As society strives to transition for sustainable energy generation is it a major challenge to optimize and develop the renewable energy generation that currently exists, both in terms of individual components and their interactions in the entire energy system. The generation from renewable sources is often irregular and not always when the demand arises. By being able to store the excess energy generated and then deliver it when the demand occur results in a more sustainable energy system. Flow batteries are a possible technology for energy storage. An important component of flow batteries are

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5

Dumancic, Dominik. "Flow batteries : Status and potential." Thesis, Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-12975.

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New ideas and solutions are necessary to face challenges in the electricity industry. The application of electricity storage systems (ESS) can improve the quality and stability of the existing electricity network. ESS can be used for peak shaving, instead of installing new generation or transmission units, renewable energy time-shift and many other services. There are few ESS technologies existing today: mechanical, electrical and electrochemical storage systems. Flow batteries are electrochemical storage systems which use electrolyte that is stored in a tank separated from the battery cell. E

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6

Saraidaridis, James D. "Analysis and performance of symmetric nonaqueous redox flow batteries." Thesis, University of Oxford, 2017. http://ora.ox.ac.uk/objects/uuid:2e3533c8-7540-4c14-858f-782292343ae3.

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Symmetric nonaqueous redox flow batteries (RFBs) use negative and positive battery solutions of the same solution composition to operate at high cell voltages. This research effort targets these systems since they offer performance improvements derived from using nonaqueous systems and symmetric active species. Nonaqueous solutions permit significantly higher cell voltages than state-of-the-art aqueous RFBs and symmetric active species chemistries reduce the required complexity of cell reactors. Both performance advantages correspond to significant cost improvements beyond already commercially

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7

Vázquez, Galván F. Javier. "Redox Flow Batteries: From Vanadium to Earth abundant organic molecules (Quinones)." Doctoral thesis, Universitat de Barcelona, 2019. http://hdl.handle.net/10803/665610.

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Along this Thesis dissertation book, which is focused on the topic of Redox Flow Batteries, many efforts have been done in order to improve different aspects of the all-Vanadium Redox Flow batteries (VRFBs) technology, as monitoring each battery compartment, increasing operational temperature range, enhancing negative electrode to reduce side reactions and charge transfer towards V3+/V2+ redox reaction and also modifying positive electrode to obtain a faster VO2 /VO redox reaction. Vanadium technology was chosen over all redox flow technologies due to its mature development reaching the barrie

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8

Eifert, László [Verfasser]. "Characterization and modification of carbon electrodes for vanadium redox flow batteries / László Eifert." Ulm : Universität Ulm, 2021. http://d-nb.info/1227450753/34.

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9

El, Hage Ranine. "Etude et optimisation d'une batterie à circulation tout vanadium." Thesis, Toulouse 3, 2020. http://www.theses.fr/2020TOU30101.

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Le présent projet concerne la conception et l'optimisation des batteries à circulation (RFB). Ces dernières sont des dispositifs permettant la conversion électrochimique de l'énergie électrique et son stockage sous forme chimique ; le processus inverse vise à récupérer l'énergie stockée sous forme d'électricité, selon la demande. Les RFB sont bien adaptées pour répondre au caractère intermittent des ressources des énergies renouvelables. La batterie étudiée est la RFB tout vanadium (VRFB), qui a été développée dans les années 80 et dont l'avantage principal par rapport aux autres batteries à c

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10

Fetyan, Abdulmonem [Verfasser]. "Fabrication and Modification of Carbon Electrode Materials for Vanadium Redox Flow Batteries / Abdulmonem Fetyan." Berlin : Freie Universität Berlin, 2019. http://d-nb.info/1176640844/34.

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11

König, Sebastian [Verfasser], and T. [Akademischer Betreuer] Leibfried. "Model-based Design and Optimization of Vanadium Redox Flow Batteries / Sebastian König ; Betreuer: T. Leibfried." Karlsruhe : KIT-Bibliothek, 2017. http://d-nb.info/113870847X/34.

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12

Diko, Mpho. "An investigation into the use of the vanadium redox flow energy storage system for peak-shaving and load-leveling." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/53276.

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Thesis (MScEng)--University of Stellenbosch, 2003.<br>ENGLISH ABSTRACT: This thesis investigates the credibility of the vanadium redox flow energy storage system, sometimes termed vanadium redox battery (VRB). The focus is on the use of this technology in peak-shaving and load-leveling applications. The initial problem is to find a suitable mathematical model for representing the daily load profile. A sinusoidal function is identified as an elementary approximation of the first order. Due to the periodicity characteristics that are inherent in a daily load profile, the Fast Fourier Tran

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13

Gutsche, Christian [Verfasser]. "Electrochemical Stability of Noble-Metal Based Nanoparticles as Oxygen Reduction and Evolution Catalysts for Vanadium Air Redox Flow Batteries / Christian Gutsche." Aachen : Shaker, 2016. http://d-nb.info/1101184442/34.

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14

Lundin, Rasmus, and Benjamin Beitler-Dorch. "Modelling and Analysis of Mobile Energy Transmission for Offshore Wind Power : An analysis of flow batteries as an energy transmission system for offshore wind power." Thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-40082.

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A comparison between a traditional fixed high voltage direct current energy transmission system and a mobile transmission system utilizing vanadium redox flow batteries has been conducted in this degree work. The purpose of this comparison was to evaluate if a mobile energy transmission system could be competitive in terms of energy efficiency and cost-effectiveness for use in offshore wind power applications. A literary study was made to fully grasp the various technologies and to create empirical ground of which cost estimation methods and energy calculations could be derived. A specific sc

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15

Hassan, Ali. "Traitement thermochimique et caractérisation spectro-électrochimique des électrodes en feutre de carbone, utilisées dans des cellules pilote d'une batterie à circulation tout vanadium." Thesis, Toulouse 3, 2020. http://www.theses.fr/2020TOU30144.

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La demande croissante d'énergie au niveau mondial fait que les énergies obtenues de ressources renouvelables connaissent un essor important, notamment dans la production globale d'électricité propre (ne générant pas des gaz à effet de serre, tels les combustibles fossiles enrichis en carbone). La nature 'intermittente' de ces ressources renouvelables d'énergie implique l'utilisation des dispositifs de stockage de grande échelle, efficaces et économiquement compétitifs. Les batteries à circulation, tout vanadium (VRFB) sont des dispositifs de stockage prometteurs pour les applications stationna

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16

grosse, Austing Jan [Verfasser]. "Unitized Bidirectional Vanadium-Air Redox Flow Battery : Kombinierte bidirektionale Vanadium-Luft-Redox-Flow-Batterie / Jan grosse Austing." Aachen : Shaker, 2016. http://d-nb.info/1101184639/34.

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17

Korniak, Daniel. "Matematický popis VRB baterie." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220160.

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This work is in the introduction focused on the introduction of technologies for electrical energy storage, their description and capturing the main advantages and disadvantages. After this capture follows comparison of the various technologies in terms of efficiency , discharge time and the price for1 kWh . Following section focuses on electrochemical model VRB batteries , which describes the equations describing the behavior of a battery depending on the chemical an electrical properties . In the penultimate chapter, I introduced the language of object- oriented modeling language Modelica an

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18

SUN, C. "Electrical energy storage by electrochemical vanadium redox flow battery methods." Doctoral thesis, Università degli studi di Padova, 2018. http://hdl.handle.net/11577/3424975.

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Redox flow batteries (RFBs) are electrochemical cells that are able to reversibly convert the chemical energy stored into the redox couples into electrical power. Vanadium redox flow batteries (VRFBs) exploit redox couples both based on vanadium species. To make VRFB technology commercially viable, technical and economic barriers including high capital cost and rapid capacity decay need to be addressed. The primary objective of this thesis is to achieve high performance VRFB with long durability, mainly by reducing the vanadium permeability through the membrane. Nowadays perfluorosulfonic acid

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19

Weißhaar, Konstantin [Verfasser], and Rolf [Akademischer Betreuer] Hempelmann. "Modifizierung und Charakterisierung der Membran- und Elektrodenmaterialien der Vanadium-Redox-Flow-Batterie / Konstantin Weißhaar ; Betreuer: Rolf Hempelmann." Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2018. http://d-nb.info/1183673523/34.

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20

Liu, Lichao. "Sulfonated poly ether ether sulfone membrane doped with ZIF-8 for enhancing performance in an all vanadium redox flow battery application." Case Western Reserve University School of Graduate Studies / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=case1516116142939028.

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21

Li, Xin [Verfasser]. "Synthese und Charakterisierung von Polymer-Elektrolyt-Membranen für die Anwendung in Brennstoffzellen und Vanadium-Redox-Flow-Batterien / Xin Li." Clausthal-Zellerfeld : Universitätsbibliothek Clausthal, 2016. http://d-nb.info/110568993X/34.

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Mögelin, Horst [Verfasser], Ulrich [Akademischer Betreuer] Kunz, and Dirk [Gutachter] Enke. "Einsatzmöglichkeiten nativer und modifizierter poröser Glasmembranen in Vanadium Redox-Flow Batterien / Horst Mögelin ; Gutachter: Dirk Enke ; Betreuer: Ulrich Kunz." Clausthal-Zellerfeld : Technische Universität Clausthal, 2020. http://d-nb.info/1230990372/34.

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23

Gebhard, Marcus [Verfasser]. "Untersuchung poröser Elektroden der Chlor-Alkali-Elektrolyse und Vanadium-Redox-Flow-Batterie mittels in-situ und operando Radiografie / Marcus Gebhard." Berlin : Freie Universität Berlin, 2020. http://d-nb.info/1220288268/34.

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24

Schafner, Katharina [Verfasser], Thomas [Akademischer Betreuer] Turek, and Ulrich [Akademischer Betreuer] Kunz. "Modellierung der Crossover-Prozesse und Entwicklung von Kapazitatsausgleichsstrategien zur Betriebsoptimierung von Vanadium-Redox-Flow-Batterien / Katharina Schafner ; Thomas Turek, Ulrich Kunz." Clausthal-Zellerfeld : Technische Universität Clausthal, 2020. http://d-nb.info/1231362715/34.

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25

Rümmler, Stefan [Verfasser], Michael [Gutachter] Bron, and Olaf [Gutachter] Klepel. "Strukturelle und elektrochemische Charakterisierung von funktionalisierten Kohlenstoffnanoröhren als Elektrodenmaterial in Vanadium-Redox-Flow-Batterien / Stefan Rümmler ; Gutachter: Michael Bron, Olaf Klepel." Halle (Saale) : Universitäts- und Landesbibliothek Sachsen-Anhalt, 2018. http://d-nb.info/1210730693/34.

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26

Geiser, Jan Nicholas [Verfasser], and Rolf [Akademischer Betreuer] Hempelmann. "Development of an improved state-of-charge sensor for the all-vanadium redox flow battery / Jan Nicholas Geiser ; Betreuer: Rolf Hempelmann." Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2019. http://d-nb.info/1196090238/34.

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Geiser, Jan Nicholas Verfasser], and Rolf [Akademischer Betreuer] [Hempelmann. "Development of an improved state-of-charge sensor for the all-vanadium redox flow battery / Jan Nicholas Geiser ; Betreuer: Rolf Hempelmann." Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2019. http://d-nb.info/1196090238/34.

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28

BIRROZZI, AGNESE. "Application of graphene-based materials in electrochemical energy storage devices and investigation of electroactive species in all vanadium redox flow cells." Doctoral thesis, Università degli Studi di Camerino, 2014. http://hdl.handle.net/11581/401841.

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The main global energy challenge is to reduce our dependence from fossil fuels. The main reason is that combustion of fossil fuels, that are limited, to produce energy generates CO2, that is the prime responsible of climate change. In order to reduce the use of fossil fuels, two main strategies are to be considered. One strategy consists in shifting electricity production from burning fuel to sustainable energy sources; the other one in developing electric vehicles, decreasing the use of oil for vehicles propulsion. For both strategies, electrical energy storage systems, that store energy from

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29

Schley, Julia [Verfasser], and Rolf [Akademischer Betreuer] Hempelmann. "Untersuchung alternativer Elektrolyte und Membranen für die Vanadium-Redox-Flow-Batterie sowie die Kopplung der Batterie mit der photoelektrochemischen Wasserspaltung / Julia Schley (geb. Baumgarten) ; Betreuer: Rolf Hempelmann." Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2017. http://d-nb.info/1154438295/34.

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Baumgarten, Julia [Verfasser], and Rolf [Akademischer Betreuer] Hempelmann. "Untersuchung alternativer Elektrolyte und Membranen für die Vanadium-Redox-Flow-Batterie sowie die Kopplung der Batterie mit der photoelektrochemischen Wasserspaltung / Julia Schley (geb. Baumgarten) ; Betreuer: Rolf Hempelmann." Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2017. http://d-nb.info/1154438295/34.

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31

Ke, Xi [Verfasser], and Sabine [Akademischer Betreuer] Beuermann. "Strahlungsinduzierte Graftpolymerisation von Acrylaten/Methacrylaten zur Herstellung von Polymerelektrolytmembranen für Vanadium-Redox-Flow-Batterien und H2/O2 Brennstoffzellen / Xi Ke ; Betreuer: Sabine Beuermann." Clausthal-Zellerfeld : Technische Universität Clausthal, 2019. http://d-nb.info/1231362944/34.

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32

Nühlen, Jochen [Verfasser], Eckhard [Gutachter] Weidner, and Rüdiger [Gutachter] Deike. "Untersuchung des Einflusses technologischer Innovationen auf Stoffströme am Beispiel von Vanadium für Redox-Flow-Batterien / Jochen Nühlen ; Gutachter: Eckhard Weidner, Rüdiger Deike ; Fakultät für Maschinenbau." Bochum : Ruhr-Universität Bochum, 2020. http://d-nb.info/1223176053/34.

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33

Chang, Chih-Hsun, and 張智勛. "Development of Integrally Molded Bipolar Plates for All-Vanadium Redox Flow Batteries." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/255yst.

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碩士<br>國立中正大學<br>機械工程學系暨研究所<br>103<br>All-vanadium redox flow batteries (VRBs) are considered as energy storage systems integrated with renewable power. They have the advantages of flexible design, deep discharge capacity, rapid response time, and long cycle life. They have been used in combination with solar and wind energy as load leveling and energy storage in recent years. Most current researches focused on the development of key components, such as electrode materials and proton proton exchange membrane. Few studies focused on the development of the bipolar plates. A traditional bipolar pl

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34

Chen, Ping Fang, and 陳柄方. "Explore of Exfoliation Graphite Fiber Performance used in all-Vanadium Redox Flow Batteries." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/kxet49.

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35

Wu, Cheng-Yi, and 吳政益. "Experimental Study of Electrolyte Flow Patterns on the Performance of All Vanadium Redox Flow Batteries." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/ya6k46.

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碩士<br>國立中興大學<br>機械工程學系所<br>99<br>In this study, the effects of flow field and electrode geometry on the performance of All-vanadium redox flow battery (VRB) were examined experimentally. A laboratory scale VRB with effective volume of 50 mm X 50 mm X 6 mm was fabricated. Inside the active volume, carbon felts with the same volume were placed and served as the electrodes of the VRB. A Nafion 117 membrane was sandwiched in between the electrodes that allowing the transport of proton ions in the electrolyte. The electrolytes used in the anode and cathode sides of the VRB are V5+/V4+ and V2+/V3+ a

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Wei, Chen-Jui, and 魏辰睿. "Effect of Activated Graphite Felt on the Performance of all-Vanadium Redox Flow Batteries." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/3kv54c.

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許富翔. "Study on the Influence of Flow Channel Design on the Performance of All-Vanadium Redox Flow Batteries." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/7xkf35.

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碩士<br>國立中正大學<br>機械工程系研究所<br>106<br>All vanadium redox flow batteries (VRFBs) store energy by the redox reaction of vanadium ions with different oxidation states. They have advantages of quick switch between charging and discharging processes, long cycle life, flexible design on power and energy capacity. In practical applications, the active area of a VRFB is usually thousands of square centimeters. Accordingly, it is a challenge to improve the uniformities of redox reaction and electrolyte distribution within the VRFB. The former can be improved by flow channel design in the reaction area to

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NI, CHENG-YOU, and 倪誠佑. "The Electrochemical Study of the Heat-Treated Graphite Electrodes for All Vanadium Redox Flow Batteries." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/20215509480993035044.

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碩士<br>輔仁大學<br>化學系<br>104<br>The energy efficiency of all vanadium redox flow batteries had been improved by heat-treatment modified the surface of graphitizing carbon felt and graphitizing carbon paper electrodes. The conditions of heat-treatment were studied at various temperatures (300, 400, and 450℃) and times (0.5, 5, 15, 30 hour). The physical properties of all heat-treated electrodes had been characterized by a scanning electron microscopy (SEM), contact angle, X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The electrochemical performances had been tested by the cy

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LIN, ZIH-YANG, and 林子揚. "The effect of electrolyte flow rate and aspect ratio on the efficiency of all-vanadium redox flow batteries." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/967gsz.

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碩士<br>國立中正大學<br>機械工程學系暨研究所<br>102<br>All-vanadium redox flow batteries (VRBS) are energy storage devices using vanadium ions to store energy. They are combined with renewable energy systems to stabilize power output. During electrochemical reaction the concentration of reactive vanadium varies along flow direction. A small electrolyte flow rate increases the concentration overpotential near the outlet of active area. The concentration overpotential can be reduced by increasing electrolyte flow velocity or flow rate. The flow velocity. Increases with decreasing aspect ratio of reaction area; ho

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Huang, Yu-Chieh, and 黃裕婕. "Modeling the effects of battery design and operating condition on the performance of all-vanadium redox flow batteries." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/ed2dr4.

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碩士<br>國立中正大學<br>機械工程學系暨研究所<br>103<br>All-vanadium redox flow batteries (VRFB) are currently used for load leveling, peak shaving, and energy storing in renewable energy systems (e.g. solar and wind). The VRFB has low current density, so it requires a larger active area of the carbon felt electrode in practical applications. When the active area is large, battery performance could be affected by electrolyte distribution, which is related to battery design and operating condition. As a results, understanding the effect of battery design and operating condition on electrolyte distribution and bat

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TSAI, PO HONG, and 蔡柏宏. "Study on the Effect of Compression Ratio of Graphite felts on the Performance of All-Vanadium Redox Flow Batteries." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/mmh2mg.

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碩士<br>國立中正大學<br>機械工程系研究所<br>106<br>Energy storage systems (ESSs) play a key role in the development of green energy technologies because of the inherently intermittent and unstable power output of the renewable power sources, such as solar and wind power. Among large-scale energy storage systems, all-vanadium redox flow batteries (VRFBs) are considered as promising ESSs because of their flexible power scale design, high safety, high efficiency, deep charge, and long cycle life. There are many factors affecting the performance of a VRFB, including materials of the separator, porous electrodes,

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42

Luo, Shi-wei, and 羅世偉. "Enhanced micro-pillars flow field design for performance gains in vanadium redox flow batteries." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/39530824463653486276.

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碩士<br>國立中央大學<br>光機電工程研究所<br>102<br>In this work, we propose a uniformly distributed electrolytes system based on micro pillars enhanced flow field designs for vanadium redox flow battery (VRFB). Experimental validation is carried out using a power-based efficiency method and measured for four different entrance bypass designs. Results show that a micro pillars flow field at the entrance bypass region can result in a significant improvement of 13% power density, as compared with the original design. In addition, the effect of asymmetry anode/cathode flow rates and the cycling tests are measured

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43

Sing, David Charles. "Direct measurement of vanadium cross-over in an operating redox flow battery." 2013. http://hdl.handle.net/2152/22228.

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A redox flow battery (RFB) is an electrochemical energy storage device in which the storage medium is in the form of liquid electrolyte, which is stored in external reservoirs separate from the cell stack. The storage capacity of such systems is limited by the size of the external tanks, making the RFB an ideal technology for grid level energy storage. The vanadium redox flow battery (VRB) is a particularly attractive variant of the RFB, due to its use of a single transition-metal element in both the positive and negative electrolytes. However, the performance of the VRB is affected by the cro

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Sá, José Lourenço Cunha de. "Design and Development of a Cooling System for Vanadium Redox Flow Batteries." Master's thesis, 2021. https://hdl.handle.net/10216/136036.

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45

Michael, Philip Henry. "A multicomponent membrane model for the vanadium redox flow battery." Thesis, 2012. http://hdl.handle.net/2152/ETD-UT-2012-08-6261.

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With its long cycle life and scalable design, the vanadium redox flow battery (VRB) is a promising technology for grid energy storage. However, high materials costs have impeded its commercialization. An essential but costly component of the VRB is the ion-exchange membrane. The ideal VRB membrane provides a highly conductive path for protons, prevents crossover of reactive species, and is tolerant of the acidic and oxidizing chemical environment of the cell. In order to study membrane performance and optimize cell design, mathematical models of the separator membrane have been developed. Wher

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Kabtamu, Daniel Manaye, and Daniel Manaye Kabtamu. "Modification of graphite felt as a high-performance electrode for vanadium redox flow batteries." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/cqu47r.

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博士<br>國立臺灣科技大學<br>材料科學與工程系<br>106<br>High production cost and the relatively low energy efficiency of the vanadium redox flow battery (VRFB) still limit their practicability. Further efforts to reduce the production cost and improve the performance of VRFB should therefore be considered. Developing highly active electrocatalysts and electrode materials with low cost are crucial in VRFB design. First, we use a simple, green, novel, time-efficient, and potentially cost-effective water activation method to enhance the electrochemical activity of graphite felt (GF) electrodes for vanadium redox fl

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Hsieh, Wei-Ning, and 謝偉寧. "Effect of concentration on electrochemical performance of ZrO2 /graphite felt in Vanadium Redox Flow Batteries." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/273qxb.

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碩士<br>元智大學<br>化學工程與材料科學學系<br>107<br>The all-vanadium redox flow battery (Vanadium redox flow battery, VRFB) to be the center of attention because vanadium redox battery has the advantages of the higher depth of discharge, lower self-discharge, safety, and flexible design. it is largely characterized by their spatial separation of energy storage and energy conversion function, which cannot be attained in other secondary batteries based on solid-state active materials. Many companies have produced vanadium flow battery storage cabinets, also some countries have built a large range of energy stor

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Bayeh, Anteneh Wodaje, and Anteneh Wodaje Bayeh. "Advanced Metal Oxide Electrocatalysts Modified Graphite Felt as High-Performance Electrode for Vanadium Redox Flow Batteries." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/2jf9s4.

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博士<br>國立臺灣科技大學<br>材料科學與工程系<br>107<br>As one of the most promising electrochemical energy storage systems, vanadium redox flow battery (VRFB) has received increasing attention due to its attractive features for large-scale storage applications. However, high production cost and the relatively low energy efficiency still limit their feasibility. Therefore, developments of powerful electrocatalyst and electrode materials with low cost are critical for the design of VRFB. To improve the energy density and overall performance for large scale applications, extensive research has been carried out on

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Cunha, Álvaro José Gonçalves da. "Use of vanadium redox flow batteries to store energy for fast charging electric vehicles in gas stations." Master's thesis, 2013. http://hdl.handle.net/1822/27495.

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Dissertação de mestrado integrado em Engenharia Mecânica<br>The expansion of car traffic and the expected growth of population for the next years have created serious environmental concerns about the dependence on fossil fuels, air pollution and emission of greenhouse gases. In this context, the electric mobility seems to be a good solution for minimize these problems. However, the actual time required to charge the batteries of these vehicles raises other questions about their usefulness. In order to reduce this time, the fast charge method is already available but a high contr

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Lin, Guan-Yi, and 林冠毅. "Hydrogen-Treated CeO2 Nanowires Decorated Graphite felt as a High Performance Electrode for Vanadium Redox Flow Batteries." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/39zr5n.

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碩士<br>國立臺灣科技大學<br>材料科學與工程系<br>106<br>Carbon-based materials with large surface area, high conductivity, and porous structure are used as the electrode in vanadium redox flow battery (VRFB). However, the graphite felt has a low energy efficiency problem due to its insufficient electrochemical activity and poor reversibility. In order to solve this problem, we decorated electrode by cerium oxide nanowires and treated it with hydrogen to increase the electrochemical activity of the electrode. The high specific surface area of the nanowires morphology was used to increase the reaction area .Moreov

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