Redox flow battery:Flow field design based on bionic mechanism with different obstructions

Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 155663 - 155663

Опубликована: Сен. 1, 2024

Язык: Английский

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Hybrid nanophotonic-microfluidic sensor integrated with machine learning for operando state-of-charge monitoring in vanadium flow batteries

Journal of Energy Storage, Год журнала: 2025, Номер 111, С. 115349 - 115349

Опубликована: Янв. 18, 2025

Язык: Английский

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A correlated multi-observable assessment for vanadium redox flow battery state of charge estimation – Long-term stability of methods

Electrochimica Acta, Год журнала: 2025, Номер unknown, С. 145707 - 145707

Опубликована: Янв. 1, 2025

Язык: Английский

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The Modeling Study of Ion Crossover in All-Vanadium Redox Flow Batteries

Modeling and Simulation, Год журнала: 2025, Номер 14(03), С. 369 - 378

Опубликована: Янв. 1, 2025

Язык: Английский

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Carbon felt coated with tungsten–bismuth-based oxides as highly active and selective negative electrodes for high power density all-vanadium redox flow batteries

Journal of Materials Chemistry A, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

To develop the VRFB negative electrode, W–Bi-based oxides were solvothermally synthesized on carbon felt (W–Bi@CF). The W–Bi 2 @CF electrode showed superior catalytic activity, selectivity, and stability, with great potential for employment in VRFBs.

Язык: Английский

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Evaluation of the effect of hydrogen evolution reaction on the performance of all-vanadium redox flow batteries

Electrochimica Acta, Год журнала: 2024, Номер 504, С. 144895 - 144895

Опубликована: Авг. 13, 2024

Язык: Английский

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Design and experimental validation of an optimal remixing procedure for vanadium flow batteries affected by faradaic imbalance

Journal of Power Sources, Год журнала: 2024, Номер 624, С. 235487 - 235487

Опубликована: Сен. 26, 2024

Язык: Английский

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Effect of Operating Conditions on the Capacity of Vanadium Redox Flow Batteries

Journal of The Electrochemical Society, Год журнала: 2024, Номер 171(6), С. 060503 - 060503

Опубликована: Май 28, 2024

Vanadium redox flow batteries (VRFBs) present a viable solution to address the intermittent power output challenge associated with wind and solar energy generation. However, their development is impeded by low density high cost. To achieve objective of cost reduction, it crucial optimize operating conditions, minimize capacity loss, enhance battery performance. Through meticulous experimental analysis, this study thoroughly examines impact membrane thickness, current density, rate, self-discharge on capacity. The findings reveal that an increase in thickness results elevated resistance proton transport, thereby weakening electrochemical reactions. Moreover, surpassing critical values for rate also leads decrease Prolonged shelving induces severe reactions accelerate deterioration fade. This research suggests obtaining optimal operational parameters can effectively mitigate

Язык: Английский

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Sensitivity of Capacity Fade in Vanadium Redox Flow Battery to Electrolyte Impurity Content

ChemPlusChem, Год журнала: 2024, Номер unknown

Опубликована: Окт. 21, 2024

Abstract The gradual capacity decrease of vanadium redox flow battery (VRFB) over long‐term charge‐discharge cycling is determined by electrolyte degradation. While it was initially believed that this degradation solely caused crossover, recent research suggests oxidative imbalance induced hydrogen evolution reaction (HER) also plays a significant role. In work using pentoxides with different impurities content, we prepared three grades electrolyte. By measuring electrochemical properties on carbon felt electrode in three‐electrode cell and VRFB membrane‐electrode assembly evaluate the influence impurity content polarization rate side reactions which indicated increase average oxidation state ( AOS ) during tests varies from 0.061 to 0.027 day −1 for electrolytes made 99.1 99.9 wt % V 2 O 5 . We found correlates open‐circuit voltage discharged ranging 9.6 14.9 mV highest lowest purity levels, respectively. significant, does not determine fade. It demonstrated presence crossover decreases fade, i. e. levels contribution drop.

Язык: Английский

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Pyridine-Containing Polyhydroxyalkylation-Based Polymers for Use in Vanadium Redox Flow Batteries

ACS Applied Energy Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 21, 2024

Язык: Английский

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