Redox flow batteries using aqueous organic-based electrolytes are promising candidates for developing cost-effective grid-scale energy storage devices. However, a significant drawback of these batteries is the cross-mixing of active species through the membrane, which causes battery performance degradation.
To overcome this issue, here we report size-selective ion-exchange membranes prepared by sulfonation of a spirobifluorene-based microporous polymer and demonstrate their efficient ion sieving functions in flow batteries.
Aqueous organic redox flow batteries are promising for grid-scale energy storage, although their practical application is still limited. Here, the authors report highly ion-conductive and selective polymer membranes, which boost the battery’s efficiency and stability, offering cost-effective electricity storage.
An aqueous, polymer-based redox-flow battery using non-corrosive, safe, and low-cost materials. Nature 527, 78–81 (2015). Zhao, E. W. et al. In situ NMR metrology reveals reaction mechanisms in redox flow batteries. Nature 579, 224–228 (2020). Kwabi, D. G. et al. Alkaline quinone flow battery with long lifetime at pH 12. Joule 2, 1894–1906 (2018).
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One of the major challenges in all vanadium redox flow battery (VRFB) is the trade-off between proton conductivity and vanadium ion cross-mixing. Here, we simultaneously …
Aqueous organic redox flow batteries are promising for grid-scale energy storage, although their practical application is still limited. Here, the authors report highly ion-conductive …
Membrane transport properties are crucial for electrochemical devices, and these properties are influenced by the composition and …
Advanced flow battery chemistries leveraging earth-abundant resources. Ion-selective polymer and composite electrolytes optimized for high ionic conductivity in non …
Flow Battery with Remarkably Stable Performance at High Current Density: Development of A Nonfluorinated Separator with Concurrent Rejection and Conductivity
Compare lithium, sodium, and flow batteries for industrial energy storage. Explore differences in cost, safety, lifespan, and ideal applications.
In the new paper, Leroux and his co-authors developed a non-aqueous flow battery — these use organic chemicals instead of water as solvents to increase battery energy density …
Redox flow batteries show promise for large-scale grid stabilisation. Of these, organic redox flow batteries (ORFBs) harbour the potential for sustainable and economic …
Membrane transport properties are crucial for electrochemical devices, and these properties are influenced by the composition and concentration of the electrolyte in contact …
The influence of electrolyte velocity over the ion-exchange membrane surface on ion and vanadium redox batteries’ conductivity was formalized and quantified. The increase in …
This study explores the synergistic potential of polyaniline (PANI) with KOH-treated carbon (KTC) derived from sugarcane bagasse, an agricultural waste used as positive …
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