By pairing 2,6-DPPEAQ with a potassium ferri/ferrocyanide positive electrolyte across an inexpensive, nonfluorinated permselective polymer membrane, this near-neutral quinone flow battery exhibits an open-circuit voltage of 1.0 V and
View moreBy pairing 2,6-DBEAQ with a potassium ferri-/ferrocyanide positive electrolyte and utilizing a non-fluorinated membrane, this near-neutral flow battery shows a capacity
View moreLin, K. et al. Alkaline quinone flow battery. Science Magazine 349, 1529–1532 (2015). CAS ADS Google Scholar
View moreWe identified the promising candidates for both the negative and positive sides of organic-based aqueous flow batteries, thus enabling an all-quinone battery. To further aid the development of additional interesting electroactive small
View moreA solution for scalable-flow batteries Flow batteries, in which the redox active components are held in tanks separate from the active part of the cell, offer a scalable route for storing large quantities of energy. Alkaline quinone flow battery Science ( IF 44.7) Pub Date : 2015-09-24, DOI: 10.1126/science.aab3033 Kaixiang Lin
View moreA water-miscible anthraquinone with polyethylene glycol (PEG)-based solubilizing groups is introduced as the redox-active molecule in a
View moreHighlights • Electronic structures and electrochemical characteristics of quinones are studied • An integrated approach with electrochemical analyses and theoretical
View moreFor the membraneless Alkaline Quinone micro redox flow battery sixty continuous cycles were performed, with an initial capacity of 1.14 Ah/L, and a coulombic efficiency of 57.85 % for the first cycle. Successive cycles present a gradual decrease in capacity around 1.2 % while coulombic efficiency only decreases 0.63 % per cycle. The capacity of
View moreA water-miscible anthraquinone with polyethylene glycol (PEG)-based solubilizing groups is introduced as the redox-active molecule in a negative electrolyte (negolyte) for aqueous redox flow batteries, exhibiting the highest
View moreOrganic redox flow batteries are promising energy storage devices due to their moderately low-cost and scalability. This paper introduces a new multi-electron redox active material, tetra-amino anthraquinone (DB-1) that is capable of forming cations with an oxidation state of 4+, yielding one of the highest electrode potentials (up to 4.4 V vs.Li) and the largest
View moreBy pairing 2,6-DBEAQ with a potassium ferri-/ferrocyanide positive electrolyte and utilizing a non-fluorinated membrane, this near-neutral flow battery shows a capacity fade rate that is the lowest of any quinone and rivals the lowest ever reported for any flow battery in the absence of rebalancing processes.
View moreBiobased: The filamentous fungus can be used as an environmentally and sustainable benign source to produce the bio-based quinone phoenicin.This natural
View moreQuino Energy, a company developing water-based organic flow batteries, has achieved manufacturing readiness level (MRL) 7 for its battery active material pilot production line.This designation confirms that the line is
View moreLin et al. show that quinones can be dissolved in alkaline solutions and coupled with ferricyanides to make a flow cell battery (see the Perspective by Perry). This gives scope for developing flow cells with very low
View moreThe performances obtained outshine previous literature results. The highest energy efficiency ever obtained for a membraneless micro redox flow battery is presented here with alkaline quinone having an efficiency of 28.9 %.
View moreSolutions of AQDS in sulphuric acid (negative side) and Br 2 in HBr (positive side) were pumped through a flow cell as shown schematically in Fig. 1a.The quinone–bromide
View moreA team at Harvard is pursuing a metal-free battery chemistry based on organic molecules called Quinones. The technology potentially offers an abundant and safe material to use for scaling up flow batteries, but according to the energy storage team at Lux Research in Boston, there are significant limitations based on project cost.
View moreThe announcement follows a Level 6 stage that involved using the quinone-based battery active material in a flow battery that was originally manufactured to accommodate vanadium, indicating that
View moreThis review article delves into the fascinating world of quinone-based redox flow battery design and discovery. By analyzing existing experimental, molecular, and
View moreBy pairing 2,6-DBEAQ with a potassium ferri-/ferrocyanide pos. electrolyte and utilizing a non-fluorinated membrane, this near-neutral flow battery shows a capacity fade rate that is the
View moreBQDS was first shown to have the potential to be used as a posolyte in an all-organic aqueous flow battery. 10 However, it was later shown that BQDS undergoes Michael
View moreA detailed device assembly process is described in the Experimental Procedures section, and the schematic illustration and images of the static and flow-mode battery are presented in Figure S1. 34 Galvanostatic charge-discharge tests were initially conducted to characterize the electrochemical properties of different kinds of quinone solutions. Catholyte
View moreQuinone electrochemistry is widely discussed in the literature [39] well-buffered aqueous media, quinone/hydroquinone couples undergo reversible two-electron (e −) redox process with potentials (E) that vary with pH in a Nernstian manner [40] non-aqueous media, quinones undergo two single e − reduction steps, to form first the radical anion (Q.−), and then
View moreHere, we use a virtual screening approach 10–16 coupled with materials genomic concepts 17–19 to allow for the rational design of an all-quinone flow battery. Quinone–bromide flow batteries
View moreQuinones are one of the most promising and widely investigated classes of redox active materials for organic aqueous redox flow batteries. However, quinone-based flow batteries still lack the
View moremicro redox flow battery is presented here with alkaline quinone having an efficiency of 28.9 %. The cycling of a membraneless micro redox flow battery is successfully per-formed for the first time. This work also includes performance improvement suggestions for future work, with this landmark opening a promising path towards achieving the
View moreWe report the performance of a quinone-bromide redox flow battery and its dependence on electrolyte composition, flow rate, operating temperature, electrode and membrane materials and pre-treatment. The results of this study are used to develop a cell with a peak galvanic power density reaching 1.0 W/cm 2 .
View moreIdeally, the redox flow battery utilizes quinones on both sides of the battery as shown in Figure 1. The RFB utilizes an oxidized version of one quinone and the reduced version of a different quinone (hydroquinone) for the two electrolytes and charging/discharging ideally involves converting between these two forms.
View moreFlow batteries permit more economical long-duration discharge than solid-electrode batteries by using liquid electrolytes stored outside of the battery. We report an alkaline flow battery based on redox-active organic
View moreexisting quinone and hydroquinone derivatives and to investi-gate their quantitative structure–property relationships (QSPRs). Here, we use a virtual screening approach10–16 coupled with materials genomic concepts17–19 to allow for the rational design of an all-quinone ow battery. Quinone–bromide ow batteries have been shown to reduce
View moreYang [26] proposed an all-quinone redox flow battery with anthraquinone-2-sulfonic acid (AQS) or anthraquinone-2,6-disulfonic acid (AQDS) as the negative electrolyte, 1,2-dihydroxybenzoquinone-3,5-disulfonic acid (BQDS) as the positive electrolyte and 1 M H 2 SO 4 as supporting electrolyte. The results indicated that AQDS showed higher water solubility,
View moreThrough the analysis of the calculation results, we discussed the influence of the quinone backbone, the position of the substituent, and the type of the substituent on the
View moreQuinones are redox-active molecules that can be easily converted between a reduced hydroquinone form and an oxidized quinone form. Quinones are found in a large number of
View moreAbstract Redox flow batteries (RFBs) are considered as promising candidates for large-scale energy storage. An Aqueous All-Quinone-Based Redox Flow Battery Employing Neutral Electrolyte. Gaojing Yang, Gaojing Yang. Therefore, an all-quinone AORFB employing neutral Na 2 SO 4 electrolytes with a cell voltage of 0.9 V is constructed,
View moreSuch a systematic study provides a generic design guide for organic flow batteries by integrating rational molecular screening, fundamental electrochemical analysis, and advanced computational modeling. The bio-inspired feature of quinones promises a next-generation energy technology with a low carbon footprint and green battery life cycle.
Here, we report a systematic study on the electrochemical characteristics of quinones for organic flow batteries with a combined experimental and computational method. The redox properties of quinones were found to be strongly dependent on the molecular aromaticity and their electronic structures.
Dotted line represents CV of 1 M KOH background scanned at 100 mV/s on graphite foil electrode. We demonstrate that quinone-based flow batteries can be adapted to alkaline solutions, where hydroxylated anthraquinones are highly soluble and bromine can be replaced with the nontoxic ferricyanide ion (8, 9)—a food additive (10).
Ideally, the redox flow battery utilizes quinones on both sides of the battery as shown in Figure 1. The RFB utilizes an oxidized version of one quinone and the reduced version of a different quinone (hydroquinone) for the two electrolytes and charging/discharging ideally involves converting between these two forms.
Lin et al. show that quinones can be dissolved in alkaline solutions and coupled with ferricyanides to make a flow cell battery (see the Perspective by Perry). This gives scope for developing flow cells with very low costs, high efficiencies at practical power densities, simplicity of operation, and inherent safety.
Sang Bok Kim Louise Eisenach Alvaro W. Valle David Hardee Roy G. Gordon Michael J. Aziz, and Michael P. Marshak +8 authors +6 authors +1 authors Authors Info & Affiliations Flow batteries, in which the redox active components are held in tanks separate from the active part of the cell, offer a scalable route for storing large quantities of energy.
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