Methanesulfonic acid-based electrode-decoupled vanadium–cerium redox flow battery exhibits significantly improved capacity and cycle life

Sankarasubramanian, Shrihari; Zhang, Yunzhu

doi:10.1039/c9se00286c

Cited by 21 publications

(10 citation statements)

References 46 publications

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“…and energy e ciencies of the ED-RFB are depicted in Fig. 4 (b) (calculations detailed in the Supplementary Materials Section S6 and elsewhere 67 ). As expected from the CVs, the irreversible nature of the Ti and Ce redox couples necessitates the application of higher overpotentials to drive the redox reactions.…”

Section: Resultsmentioning

confidence: 99%

“…Despite the operational advantages of using the same elemental active on the cathode and anode sides, vanadium is cost-prohibitive, geographically limited in availability (and hence geopolitically constrained) and is not likely to meet system-level cost targets. 5,15 Numerous other elemental active combinations have been demonstrated in RFBs with some examples being the Zn-Ce [25][26][27] , all-Fe 28,29 , Ce-Pb 30 , V-Ce [31][32][33] , Zn-V 34 , Cr-Zn 35 chemistries. The challenges in each case have been a combination of high cost, parasitic side reactions (e.g., H 2 evolution), durability, di culties with phase-change at the electrode (plating/dissolution), and reactant-cross-over-driven capacity-fade.…”

Section: Introductionmentioning

confidence: 99%

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An Aqueous, Electrode-Decoupled Redox-Flow Battery for Long Duration Energy Storage

Sankarasubramanian

Zhang

et al. 2021

Preprint

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Redox-flow batteries (RFBs) enable large-scale energy storage at low cost due to the independent scaling of device power and energy, thereby unlocking energy arbitrage opportunities and providing a pathway to grid stability and resiliency. Herein we demonstrate an “electrode-decoupled” redox-flow battery (ED-RFB) with titanium and cerium elemental actives that has a clear pathway to achieve a levelized cost of storage (LCOS) of ca $0.025/kWh-cycle. A key enabling technology is our highly perm-selective modified poly(ether ketone)-based anion exchange membrane (AEM) that ensures long term separation of Ti and Ce species and enables capacity-fade-free cycling over 1300 hours of operation. Further, our Ti-Ce ED-RFB exhibits negligible capacity fade when the actives are charged to 90% state of charge (SOC), stored for close to 100-hours and then discharged, rendering it viable for long duration (load-following) grid-scale energy storage applications. Herein we introduce the Ti-Ce ED-RFB as a novel, low-cost long duration energy storage (LDES) system.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Aqueous, Electrode-Decoupled Redox-Flow Battery for Long Duration Energy Storage

Sankarasubramanian

Zhang

et al. 2021

Preprint

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“…In addition, other electrolyte solutions, ex. V/Ce, V/Fe, and V/Br RFBs have been extensively investigated by various separation membranes, such as anion exchange membrane (AEM), Nafion-117/SiO 2 -SO 3 H membrane, Nafion-112, amphoteric ion exchange membrane (sulfonated PEEK) and sulfonated polyether ether ketone (SPEEK)/titanium oxide (TiO 2 ) [5,32,[48][49][50].…”

Section: The Separation Membranementioning

confidence: 99%

“…Therefore, this V/I RFB has not only low costs, but also exhibits good potential for applications in the energy storage systems. Apart from this, some semi-vanadium RFBs with excellent energy efficiency, such as V/Fe, V/Ce, and V/Br have been fabricated [31][32][33]. The V/I RFB (∆G o r = −45 KJ/mole) and all-V RFB (∆G o r = −129.9 KJ/mole) show a large difference for the ∆G o r to transfer the electrical work (∆E o r ), so that the thermal effect is obvious by monitoring the ITI.…”

Section: Introductionmentioning

confidence: 99%

Real-Time Monitoring of the Thermal Effect for the Redox Flow Battery by an Infrared Thermal Imaging Technology

Huang

Chang

et al. 2020

Energies

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In this study, a new monitoring method was developed, titled infrared thermal imaging technology, which can effectively evaluate the thermal effect of the charge-discharge test in the vanadium/iodine redox flow battery (V/I RFB). The results show that the all-vanadium redox flow battery (all-V RFB) has a greater molar reaction Gibbs free energy change than that of the V/I RFB, representing a large thermal effect of the all-V RFB than the V/I RFB. The charge-discharge parameters, flow rate and current density, are important factors for inducing the thermal effect, because of the concentration polarization and the ohmic resistor. The new membrane (HS-SO3H) shows a high ion exchange capacity and a good ions crossover inhibitory for the V/I RFB system, and has a high coulomb efficiency that reaches 96%. The voltage efficiency was enhanced from 61% to 86% using the C-TiO2-Pd composite electrode as a cathode with the serpentine-type flow field for the V/I RFB. By adopting the high-resolution images of an infrared thermal imaging technology with the function of the temperature profile data, it is useful to evaluate the key components’ performance of the V/I RFB, and is a favorable candidate in the developing of the redox flow battery system.

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“…Economical carbon-based materials have been found to exhibit promising kinetic activity for the Ce(III)/Ce(IV) reaction. 18,21 Unlike Pt electrodes, carbonbased materials do not exhibit oxide layer formation during the oxidation of Ce(III) during charge.…”

Section: Introductionmentioning

confidence: 99%

Graphite felt modified withWO₃,SnO₂,and binaryWO₃/SnO₂‐mixtures as novel positive electrodes for cerium‐based redox flow batteries

Bingah¹,

Pritzker

2021

Intl J of Energy Research

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Cerium-based redox flow batteries (RFBs) such as Zn-Ce and V-Ce have received attention as attractive energy storage systems due to their high opencircuit cell voltages. To date, the most successful Ce-based RFBs have relied on expensive Pt-based positive electrodes. In this study, the use of more economical polyacrylonitrile (PAN)-based graphite felt (GF) containing tungsten oxide (WO 3 ) and/or tin oxide (SnO 2 ) nanocatalysts is examined for its electrochemical activity for the Ce(III)/Ce(IV) redox reaction in a series of half-cell experiments. Cyclic voltammetry is carried out at room temperature in a 0.05 M Ce(III) methanesulfonate +1.0 M methanesulfonic acid (MSA) electrolyte using a custom-made three-electrode cell. Among all modified GFs, those coated with a binary WO 3 -SnO 2 mixture have exhibited superior electrocatalytic activity toward the Ce(III)/Ce(IV) reaction compared to the ones decorated with single oxides WO 3 or SnO 2 . Presumably, this can be ascribed to the involvement of both metal oxides (WO 3 and SnO 2 ) in promoting electrolyte accessibility and improving the hydrophilicity of GF electrodes. SEM images indicate that the combination of WO 3 and SnO 2 promotes a more homogeneous dispersion over the graphite fiber surface and prevents clustering of the oxide particles that is more evident in the case of the single metal oxide catalysts.

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Methanesulfonic acid-based electrode-decoupled vanadium–cerium redox flow battery exhibits significantly improved capacity and cycle life

Abstract: V–Ce RFBs (∼100% CE and ∼70% EE over 100 cycles) using a CH3SO3H-based electrolyte and a AEM separator shows 30% higher capacity and 0.024% capacity fade/cycle vs. 5% capacity fade/cycle for H2SO4 supported V–Ce ED-RFBs.

Cited by 21 publications

References 46 publications

An Aqueous, Electrode-Decoupled Redox-Flow Battery for Long Duration Energy Storage

An Aqueous, Electrode-Decoupled Redox-Flow Battery for Long Duration Energy Storage

Real-Time Monitoring of the Thermal Effect for the Redox Flow Battery by an Infrared Thermal Imaging Technology

Graphite felt modified withWO₃,SnO₂,and binaryWO₃/SnO₂‐mixtures as novel positive electrodes for cerium‐based redox flow batteries

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Methanesulfonic acid-based electrode-decoupled vanadium–cerium redox flow battery exhibits significantly improved capacity and cycle life

Abstract: V–Ce RFBs (∼100% CE and ∼70% EE over 100 cycles) using a CH3SO3H-based electrolyte and a AEM separator shows 30% higher capacity and 0.024% capacity fade/cycle vs. 5% capacity fade/cycle for H2SO4 supported V–Ce ED-RFBs.

Cited by 21 publications

References 46 publications

An Aqueous, Electrode-Decoupled Redox-Flow Battery for Long Duration Energy Storage

An Aqueous, Electrode-Decoupled Redox-Flow Battery for Long Duration Energy Storage

Real-Time Monitoring of the Thermal Effect for the Redox Flow Battery by an Infrared Thermal Imaging Technology

Graphite felt modified withWO3,SnO2,and binaryWO3/SnO2‐mixtures as novel positive electrodes for cerium‐based redox flow batteries

Contact Info

Product

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Graphite felt modified withWO₃,SnO₂,and binaryWO₃/SnO₂‐mixtures as novel positive electrodes for cerium‐based redox flow batteries