Study on the effect of electrode configuration on the performance of a hydrogen/vanadium redox flow battery

Hsu, Ning-Yih; Devi, Nitika; Lin, Yu-I; Hu, Yi-Hsin; Ku, Hung-Hsien; Arpornwichanop, Amornchai; Chen, Yong-Song

doi:10.1016/j.renene.2022.03.151

Cited by 7 publications

(2 citation statements)

References 37 publications

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“…The application scope of vanadium has expanded beyond iron-/steelmaking, military, and medical industries [1][2][3][4] to include functional materials (e.g., nanocomposites), high-performance alloys, and all-vanadium liquid-flow batteries [5][6][7][8][9][10][11][12][13]. In particular, the abovementioned batteries represent a new high-efficiency energy storage technology and energy-development direction, which highlights the strategic importance of vanadium resources [14][15][16]. The steel industry is a major area of interest for vanadium products.…”

Section: Introductionmentioning

confidence: 99%

Short-Process Preparation of High-Purity V2O5 from Shale Acid Leaching Solution via Chlorination

Huang

Zhang

et al. 2023

Processes

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The conventional V2O5 preparation processes include ion exchange, chemical precipitation, solvent extraction, and other processes. Given the long process and complex operation nature of traditional V2O5 production methods, we herein developed a short-process, low-temperature, and convenient operation method of isolating vanadium (in the form of V2O5) from shale acid leaching solution. The acid leaching solution was oxidized with NaClO3 and pH-adjusted with NaOH to form a vanadium-containing precipitate, which was mixed with AlCl3 (V:AlCl3 = 1:5, mol/mol) and roasted for 120 min at 170 °C to afford vanadium oxytrichloride (VOCl3) with a purity of 99.59%. In addition, the vanadium-containing precipitate was mixed with AlCl3 and NaCl (V:AlCl3:NaCl = 3:12:8, mol/mol/mol) and roasted for 120 min at 170 °C to afford VOCl3 with a purity of 99.94%. VOCl3 (purity of 99.94%) was dissolved in ultrapure water, and the solution (32 gvanadium/L) was treated with NH3·H2O (NH3:V = 1.34, mol/mol) at 50 °C for 120 min. The obtained precipitate (vanadium precipitation rate = 99.28%) was roasted at 550 °C for 3 h to afford high-purity vanadium pentoxide (V2O5) with a purity of 99.86%. Compared with the traditional hydrometallurgical method of V2O5 preparation, our method avoided solvent extraction and other undesired processes and the overall process flow is greatly shortened, thus having high practical value.

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Section: Introductionmentioning

confidence: 99%

Short-Process Preparation of High-Purity V2O5 from Shale Acid Leaching Solution via Chlorination

Huang

Zhang

et al. 2023

Processes

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“…Therefore, after denuclearization by 2025, although the proportion of power generation will increase slightly by 39% (to supplement the demand for power supply security and low cost), with the increase in the proportion of renewable energy and gas-power generation, coal-fired power generation will be limited by high CO 2 emissions, as hybrid generation will drop slightly to 38% [ 1 , 2 ]. In order to reduce the cost of the vanadium redox battery, Hsu et al [ 3 ] substituted aqueous catholyte with gaseous hydrogen and maintained vanadium ions in the anolyte as a hydrogen/vanadium redox flow battery (HVRFB). The influence of the cathode was checked to study the HVRFB configuration, Pt load, humidity condition, and electrolyte flow velocity.…”

Section: Introductionmentioning

confidence: 99%

A Flexible 7-in-1 Microsensor Embedded in a Hydrogen/Vanadium Redox Battery for Real-Time Microscopic Measurements

Lee

Chen²,

Chen

et al. 2022

Membranes

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The latest document indicates that the hydrogen/vanadium redox flow battery has better energy density and efficiency than the vanadium redox flow battery, as well as being low-cost and light-weight. In addition, the hydrogen, electrical conductivity, voltage, current, temperature, electrolyte flow, and runner pressure inside the hydrogen/vanadium redox flow battery can influence its performance and life. Therefore, this plan will try to step into the hydrogen/vanadium redox flow battery stack and improve the vanadium redox flow battery of this R&D team, whereof the electrolyte is likely to leak during assembling, and the strong acid corrosion environment is likely to age or fail the vanadium redox flow battery and microsensors. Micro-electro-mechanical systems (MEMS) are used, which are integrated with the flexible 7-in-1 microsensor, which is embedded in the hydrogen/vanadium redox flow battery for internal real-time microscopic sensing and diagnosis.

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Chemical Doping and O‐Functionalization of Carbon‐Based Electrode to Improve Vanadium Redox Flow Batteries

Liao,

Gao,

Wang

et al. 2024

ChemSusChem

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The vanadium redox flow battery (VRFB) holds promise for large‐scale energy storage applications, despite its lower energy and power densities compared to advanced secondary batteries available today. Carbon materials are considered suitable catalyst electrodes for improving many aspects of the VRFB. However, pristine graphite structures in carbon materials are catalytically inert and require modification to activate their catalytic activity. Among the various strategies developed so far, O‐functionalization and chemical doping of carbon materials are considered some of the most promising pathways to regulate their electronic structures. Building on the catalytic mechanisms involved in the VRFB, this concise review discusses recent advancements in the O‐functionalization and chemical doping of carbon materials. Furthermore, it explores how these materials can be tailored and highlights future directions for developing more promising VRFBs to guide future research.

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Study on the effect of electrode configuration on the performance of a hydrogen/vanadium redox flow battery

Cited by 7 publications

References 37 publications

Short-Process Preparation of High-Purity V2O5 from Shale Acid Leaching Solution via Chlorination

Short-Process Preparation of High-Purity V2O5 from Shale Acid Leaching Solution via Chlorination

A Flexible 7-in-1 Microsensor Embedded in a Hydrogen/Vanadium Redox Battery for Real-Time Microscopic Measurements

Chemical Doping and O‐Functionalization of Carbon‐Based Electrode to Improve Vanadium Redox Flow Batteries

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