Carbon-based slurry electrodes for energy storage and power supply systems

Mourshed, Monjur; Niya, Seyed Mohammad Rezaei; Ojha, Ruchika; Rosengarten, Gary; Andrews, John; Shabani, Bahman

doi:10.1016/j.ensm.2021.05.032

Cited by 53 publications

(33 citation statements)

References 292 publications

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“…Owing to the rather simple pre and postprocessing of slurry electrodes, feasible applications have also been identified in semi-solid flow cells, , electrochemical flow capacitors, ,, and flow capacitive deionization systems. , Recently, slurry electrodes have been introduced in the flow capacitive deionization system to overcome the electrosorption capacity limit (adsorption on the charged electrode surface under polarization potential), which is one of the main limitations with the capacitive deionization process to get fresh water from seawater. As the slurry electrode always keeps circulating and regenerating (as it is not required to supply with freshly prepared slurry after completing each cycle of operation), capacitive flow deionization can maintain a constant ion removal rate without saturating the electrodes; at the same time, it can also generate energy. , …”

Section: Introductionmentioning

confidence: 99%

“…A thorough literature review conducted as part of this study indicates that evaluating the electronic and ionic conductivities of carbon-based slurry electrodes, as well as an in-depth understanding of the effect of parameters such as particles concentration, geometry of flow channel, and slurry flow rate, are critical when designing slurry electrode-based energy and power systems. This point has also been verified in the experimental studies of a new generation of carbon-based proton-storage electrochemical systems .…”

Section: Introductionmentioning

confidence: 99%

“…As the slurry electrode always keeps circulating and regenerating (as it is not required to supply with freshly prepared slurry after completing each cycle of operation), capacitive flow deionization can maintain a constant ion removal rate without saturating the electrodes; at the same time, it can also generate energy. 39,40 The characteristics of the slurry electrode, including flowability and electrochemical properties, such as electrical conductivity and charge carrying capacitance, are controlled by the properties of the suspended carbon particles in the slurry. 41 These aspects have been barely studied in the literature, particularly in the context of carbon slurry electrode applications for power/energy systems.…”

Section: Introductionmentioning

confidence: 99%

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Experimental Study of Electronic and Ionic Conductivity of a Carbon-Based Slurry Electrode Used in Advanced Electrochemical Energy Systems

Mourshed

Niya

Shabani

2022

ACS Appl. Energy Mater.

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Focusing on the application of carbon slurry electrodes in advanced electrochemical power and energy storage systems, the electrical conductivity of such electrodes is thoroughly investigated experimentally. A slurry electrode made from steam-activated Norit is analyzed to estimate its electronic and ionic conductivities separately. A single-pass rectangular flow channel with three different widths of 4.1, 3.6, and 3.1 cm is used to investigate the effect of the flow channel geometry on slurry electrode conductivity. Three different slurry concentrations of 5, 10, and 15 wt % are investigated, while electronic and ionic conductivities are separately measured using distilled water and sulfuric acid as electrolytes. The charge conduction improvement due to the availability of more charge-carrying particles in the slurry is quantified, and it is shown that up to about 220 and 120% increase in electronic conductivities can be achieved by increasing carbon loading from 5 to 10 and 15 wt %, respectively. Analysis of slurry conductivity variations from a static condition to a flow rate of 280 mL min–1 with different channel widths and concentrations shows that the slurry conductivity reaches a maximum value at an intermediate flow rate and is then gradually decreased. The optimum working condition of a slurry electrode is finally discussed.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Experimental Study of Electronic and Ionic Conductivity of a Carbon-Based Slurry Electrode Used in Advanced Electrochemical Energy Systems

Mourshed

Niya

Shabani

2022

ACS Appl. Energy Mater.

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“…Additionally, the semi-solid RFB can be either aqueous [268,269] or non-aqueous, such as the one represented in Figure 11. Furthermore, decreasing the particle size will result in improved diffusion, enhanced charge transfer, and higher current densities [270]. However, despite these advantages, it is also true that decreasing the particle size will also contribute to the crossover effect and therefore will reduce the coulombic efficiency [270].…”

Section: Without Redox Mediatormentioning

confidence: 99%

“…Furthermore, decreasing the particle size will result in improved diffusion, enhanced charge transfer, and higher current densities [270]. However, despite these advantages, it is also true that decreasing the particle size will also contribute to the crossover effect and therefore will reduce the coulombic efficiency [270]. Beyond that, for higher concentrations the viscosity of the electrolyte will also increase, ultimately increasing the pressure drop, which is one of the biggest drawbacks of this strategy [3,229,232,235,236,[238][239][240].…”

Section: Without Redox Mediatormentioning

confidence: 99%

Redox Flow Batteries: Materials, Design and Prospects

et al. 2021

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The implementation of renewable energy sources is rapidly growing in the electrical sector. This is a major step for civilization since it will reduce the carbon footprint and ensure a sustainable future. Nevertheless, these sources of energy are far from perfect and require complementary technologies to ensure dispatchable energy and this requires storage. In the last few decades, redox flow batteries (RFB) have been revealed to be an interesting alternative for this application, mainly due to their versatility and scalability. This technology has been the focus of intense research and great advances in the last decade. This review aims to summarize the most relevant advances achieved in the last few years, i.e., from 2015 until the middle of 2021. A synopsis of the different types of RFB technology will be conducted. Particular attention will be given to vanadium redox flow batteries (VRFB), the most mature RFB technology, but also to the emerging most promising chemistries. An in-depth review will be performed regarding the main innovations, materials, and designs. The main drawbacks and future perspectives for this technology will also be addressed.

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Recent Progress in High‐voltage Aqueous Zinc‐based Hybrid Redox Flow Batteries

Park

Kim

Choi

et al. 2022

Chemistry An Asian Journal

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The energy density of redox flow batteries (RFBs) is generally affected by the standard electrode potential and the solubility of the redox active species. These crucial factors are closely related to the solvent in which the active materials are dissolved. Aqueous RFBs have been widely studied due to their excellent reaction kinetics and high solubility of the redox couple in aqueous media. However, the low voltage of conventional aqueous RFBs has hindered them from being candidates for practical applications. Recently, high‐voltage aqueous RFBs are implemented based on the low negative potential of the Zn/[Zn(OH)4]2− reaction in an alkaline solution. Here, we review recent progress in the design of high energy density RFBs in both aqueous and non‐aqueous electrolytes, notably focusing on the Zn/MnO2 hybrid RFBs in detail. Furthermore, strategies for inhibiting zinc dendritic growth and stabilizing manganese redox couple in the RFBs system are discussed.

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Carbon-based slurry electrodes for energy storage and power supply systems

Cited by 53 publications

References 292 publications

Experimental Study of Electronic and Ionic Conductivity of a Carbon-Based Slurry Electrode Used in Advanced Electrochemical Energy Systems

Experimental Study of Electronic and Ionic Conductivity of a Carbon-Based Slurry Electrode Used in Advanced Electrochemical Energy Systems

Redox Flow Batteries: Materials, Design and Prospects

Recent Progress in High‐voltage Aqueous Zinc‐based Hybrid Redox Flow Batteries

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