A novel tin-bromine redox flow battery for large-scale energy storage

Zeng, Yikai; Yang, Zhifei; Lü, Fei; Xie, Yongliang

doi:10.1016/j.apenergy.2019.113756

Cited by 41 publications

(17 citation statements)

References 47 publications

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“…Based on the asymmetric electrolyte approach and a mediator-ion concept, the voltage of nonaqueous RFBs can be tuned through a proper selection and management of different redox couples. The cell voltage can be enhanced with an alternative cathode that can provide a high redox potential (such as Unisol blue, octafluoronaphthalene (OFN), bromine, etc.). A high cell voltage can also be accessed by replacing Zn with an alternative anode that exhibits a low redox potential (such as Li).…”

Section: Resultsmentioning

confidence: 94%

High-Energy, Single-Ion-Mediated Nonaqueous Zinc-TEMPO Redox Flow Battery

Manthiram

2020

ACS Appl. Mater. Interfaces

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Two distinct advantages of nonaqueous redox flow batteries (RFBs) are the feasibility of building a high cell voltage (without a constraint of the water-splitting potential) and the operability at low temperatures (without a concern of freezing below 0 °C). However, electrochemically active organic redox couples are usually selectively soluble in specific nonaqueous solvents, and their solubility is relatively low (in contrast to that in aqueous solutions). The selective and low solubility of redox couples seriously constrict the practical energy density of nonaqueous RFBs. Herein, we present a hybrid nonaqueous RFB with a solid zinc anode and a liquid (2,2,6,6tetramethylpiperidin-1-yl)oxyl (TEMPO) cathode. Toward accessing a high solubility of the TEMPO cathode and to sufficiently accommodate the discharge products of a Zn anode, asymmetric electrolyte solvents, viz., propylene carbonate (PC) and acetonitrile (ACN), have, respectively, been employed at the cathode and anode. To prevent a mixing of the two asymmetric electrolyte solvents, a NASICON-type Na + -ion conductive solid-state electrolyte (SSE, Na 3 Zr 2 Si 2 PO 12 ) is employed to serve as a mediator-ion separator. The shuttling of Na + ions through the Na 3 Zr 2 Si 2 PO 12 SSE sustains the ionic charge balance between the two electrodes. The Zn-TEMPO nonaqueous cell with a stable energy density of ca. 12−18 Wh L −1 over 50 cycles was demonstrated.

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Section: Resultsmentioning

confidence: 94%

High-Energy, Single-Ion-Mediated Nonaqueous Zinc-TEMPO Redox Flow Battery

Manthiram

2020

ACS Appl. Mater. Interfaces

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“…During the discharge process, the reverse electrode reactions occur. The current Br-FB systems include ZBFB, HBFB, PBFB, VBFB, QBFB, LBFB, TBFB, and TiBFB, upon which their redox reactions during the charge-discharge process are as shown in Table 2 [7,[28][29][30][31][32][33]:…”

Section: Overview Of Br-fbsmentioning

confidence: 99%

“…For instance, when using the heat treatment method, after being heated to 500 °C, more pores and oxygencontaining functional groups will be created on the surface of CFs [69]. Moreover, the CFs used in the novel TBFBs were pretreated in the air at 500 °C for 5 h to achieve higher electrophilicity [33]. Suresh et al [70] employed H 2 SO 4treated CPs (SM-CP) at the positive side of the ZBFBs.…”

Section: Modification Of Electrodesmentioning

confidence: 99%

Progress and Perspective of the Cathode Materials towards Bromine-Based Flow Batteries

et al. 2022

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Bromine-based flow batteries (Br-FBs) have been one of the most promising energy storage technologies with attracting advantages of low price, wide potential window, and long cycle life, such as zinc-bromine flow battery, hydrogen-bromine flow battery, and sodium polysulfide-bromine flow battery. The research and development of aqueous Br-FBs are very fast and many achievements have been realized. However, Br-FBs suffer from the sluggish kinetics of Br2/Br- redox couple and serious self-discharge caused by the diffusion of bromine, which hinder the further commercialization and industrialization of the aqueous Br-FBs. A series of mitigation strategies have been developed to figure out these challenges, especially the modifications on electrode materials. Electrode, one of the critical components in a Br-FB, provides the reactions sites for redox couples, upon which its properties exert a significant effect on the performance of Br-FBs. Up to now, extensive research has been carried out on electrode modifications to solve the aforementioned notorious issues of Br-FBs, including surface treatment and surface modification. In this review, various electrode materials and relevant modification approaches used for Br-FBs are overviewed and summarized. Moreover, the relevant mechanisms are illustrated deeply, providing comprehensive and available instruction to pursue and develop high-performance cathodes for Br-FBs with high power density and long lifespan.

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“…The influence of GF and CF on the performance of vanadium redox flow battery (VRFB) has been widely reported, while there is less literature on this issue for the application of ICRFBs, as shown in Table S1. Liu et al reported that in comparison with GF, the VRFB adopted with CF exhibits much higher electrochemical activity .…”

Section: Introductionmentioning

confidence: 99%

“…13 More and more researchers are attempting various means for enhancing the electrochemical activity of GF or CF electrode. [18][19][20][21][22][23] The influence of GF and CF on the performance of vanadium redox flow battery (VRFB) has been widely reported, [24][25][26][27] while there is less literature on this issue for the application of ICRFBs, as shown in Table S1. Liu et al reported that in comparison with GF, the VRFB adopted with CF exhibits much higher electrochemical activity.…”

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confidence: 99%

Investigations on physicochemical properties and electrochemical performance of graphite felt and carbon felt for iron‐chromium redox flow battery

et al. 2020

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Summary In this paper, polyacrylonitrile‐based graphite felt (GF), carbon felt (CF) and the effect of thermal activation on them with or without the catalyst (BiCl3) are comprehensively investigated for iron‐chromium redox flow battery (ICRFB) application. The physical‐chemical parameters of GF and CF after the thermal activation is affected significantly by their graphitization degree, oxygen functional groups, and surface area. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) results manifest that GF and CF before and after the thermal activation have different electrocatalytic activities owing to oxygen functional groups number increase and the graphitization degree decrease. In terms of the capacity decay rate, as oxygen functional groups provide shorter electrocatalytic pathways than bismuth ions, the performance of GF and CF after the thermal activation is more ideal. As a result, GF before and after the thermal activation exhibits higher efficiency (EE: 86%) and better stability at a charge‐discharge current density of 60 mA·cm−2 than those of CF during charge‐discharge cycling, as the dominant limitation in an ICRFB is ohmic and activation polarization. Therefore, GF after thermal activation together with the addition of BiCl3 in the electrolyte is a more promising electrode material for ICRFBs application than CF.

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A novel tin-bromine redox flow battery for large-scale energy storage

Cited by 41 publications

References 47 publications

High-Energy, Single-Ion-Mediated Nonaqueous Zinc-TEMPO Redox Flow Battery

High-Energy, Single-Ion-Mediated Nonaqueous Zinc-TEMPO Redox Flow Battery

Progress and Perspective of the Cathode Materials towards Bromine-Based Flow Batteries

Investigations on physicochemical properties and electrochemical performance of graphite felt and carbon felt for iron‐chromium redox flow battery

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