Results 211 to 220 of about 15,745 (261)

Electrolyte Flow in Vanadium Redox Flow Batteries

ECS Meeting Abstracts, 2019
The redox reactions inside a Vanadium Redox Flow Battery (VRFB) are catalyzed by a porous carbon felt electrode, through which the vanadium containing electrolyte is pumped. Thus, a high Electrochemically Active Surface Area (ECSA), corresponding to a high saturation of the porous electrode, is beneficial to the performance.
Nico Bevilacqua, László Eifert, Rupak Banerjee, Kerstin Köble, Tomáš Faragó, Marcus Zuber, Aimy Bazylak, Roswitha Zeis   +7 more
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Rebalancing/Regeneration of Vanadium Flow Batteries

2023
Rebalancing and regeneration are essential to counteract the evolution of electrolyte imbalance in flow batteries (FBs). These effects have different physical and chemical causes and produce a progressive decay of capacity. In this chapter, the different causes of the electrolyte imbalance are discussed, which lead to concentration imbalance, oxidative
Nicola Poli, Andrea Trovo', Massimo Guarnieri   +2 more
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VANADIUM FLOW BATTERY CELL PERFORMANCE STUDY

TOPICAL PROBLEMS OF DEVELOPMENT RENEWABLE ENERGY, 2020
Индустрия химических источников тока развивается очень быстро, уже сейчас потребность в химических источниках тока нового поколения наблюдается не только в сфере автомобилестроения и портативных устройств, но и сфере возобновляемых источников энергии.
A.A. Fedotov, A.B. Tarasenko
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Thermal issues of vanadium redox flow batteries

International Journal of Heat and Mass Transfer, 2023
Vanadium redox flow batteries (VRFBs) are one of the most promising technologies for renewable energy storage. However, complex thermal issues caused by excessive heat generation during high-rate operations and various heat transfer behaviors in diverse climates dramatically affect the efficiency and stability of VRFBs. In this review, we summarize the
Ren, Jiayou, Li, Yiju, Wang, Zhenyu, Sun, Jing, Yue, Qianli, Fan, Xinzhuang, Zhao, Tianshou   +6 more
openaire   +2 more sources

Electrolytes for vanadium redox flow batteries

Pure and Applied Chemistry, 2014
AbstractVanadium redox flow batteries (VRBs) are one of the most practical candidates for large-scale energy storage. Its electrolyte as one key component can intensively influence its electrochemical performance. Recently, much significant research has been carried out to improve the properties of the electrolytes.
Xiongwei Wu, Jun Liu, Xiaojuan Xiang, Jie Zhang, Junping Hu, Yuping Wu   +5 more
openaire   +1 more source

(Invited) Lessons from Vanadium Flow Batteries for Non-Vanadium Flow Batteries

ECS Meeting Abstracts
Over the last ~40 years Vanadium Redox Flow Batteries (VRFBs) have been the most studied redox flow battery chemistries. This owes to VRFBs being a reasonably easy system to build and run. VRFBs use sulfuric acid that is compatible with off the shelf components that do not need extreme oxygen removal.
Reed M Wittman, Samantha Macchi
openaire   +1 more source

Electrolyte Stability in Vanadium Flow Batteries

MRS Advances, 2018
The stability of VFB catholytes was investigated using both light-scattering measurements and visual observation. V2O5 precipitates after an induction time τ which shows an Arrhenius variation with temperature. The value of τ increases with increasing [S] and with decreasing [VV] but the activation energy remains constant with a value of (1.791±0.020 ...
D. Noel Buckley, Daniela Oboroceanu, Nathan Quill, Catherine Lenihan, Deirdre Ní Eidhin, Robert P. Lynch   +5 more
openaire   +1 more source

Electrochemical evaluation methods of vanadium flow battery electrodes

Physical Chemistry Chemical Physics, 2017
A reliable device as well as parameters is important for the electrochemical evaluation of a VFB electrode to achieve more convincing results.
Lantao Wu, Jianshe Wang, Yi Shen, Le Liu, Jingyu Xi   +4 more
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Nanostructured Electrocatalysts for All‐Vanadium Redox Flow Batteries

Chemistry – An Asian Journal, 2015
AbstractVanadium redox reactions have been considered as a key factor affecting the energy efficiency of the all‐vanadium redox flow batteries (VRFBs). This redox reaction determines the reaction kinetics of whole cells. However, poor kinetic reversibility and catalytic activity towards the V2+/V3+ and VO2+/VO2+ redox couples on the commonly used ...
Park, Minjoon, Ryu, Jaechan, Cho, Jaephil   +2 more
openaire   +3 more sources

The Vanadium Redox Flow Battery: an Asymptotic Perspective

SIAM Journal on Applied Mathematics, 2019
Summary: Asymptotic methods are used to analyze a time-dependent two-dimensional (2D) model for the operation of a vanadium redox flow battery -- an energy storage technology that has attracted much attention recently. The model takes into account mass, momentum, and charge conservation involving a total of seven ionic species in two porous electrodes ...
Vynnycky, M., Assunção, M.
openaire   +1 more source