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Thin Film Composite Membranes with Regulated Crossover and Water Migration for Long‐Life Aqueous Redox Flow Batteries
,
Anqi Wang,
Chunchun Ye,
Jiaxi Li,
Dezhi Liu,
Barbara Primera Darwich,
Luke Petit,
Zhiyu Fan,
Toby Wong,
Alberto Alvarez‐Fernandez,
Mate Furedi,
Stefan Guldin,
Charlotte E. Breakwell,
Peter A. A. Klusener,
Anthony R. Kucernak,
Kim E. Jelfs,
Neil B. McKeown,
Qilei Song
Advanced Science, Volume: 10, Issue: 20
Swansea University Author:
Rui Tan
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DOI (Published version): 10.1002/advs.202206888
Abstract
Redox flow batteries (RFBs) are promising for large-scale long-duration energy storage owing to their inherent safety, decoupled power and energy, high efficiency, and longevity. Membranes constitute an important component that affects mass transport processes in RFBs, including ion transport, redox...
| Published in: | Advanced Science |
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| ISSN: | 2198-3844 2198-3844 |
| Published: |
Wiley
2023
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa67802 |
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| Abstract: |
Redox flow batteries (RFBs) are promising for large-scale long-duration energy storage owing to their inherent safety, decoupled power and energy, high efficiency, and longevity. Membranes constitute an important component that affects mass transport processes in RFBs, including ion transport, redox-species crossover, and the net volumetric transfer of supporting electrolytes. Hydrophilic microporous polymers, such as polymers of intrinsic microporosity (PIM), are demonstrated as next-generation ion-selective membranes in RFBs. However, the crossover of redox species and water migration through membranes are remaining challenges for battery longevity. Here, a facile strategy is reported for regulating mass transport and enhancing battery cycling stability by employing thin film composite (TFC) membranes prepared from a PIM polymer with optimized selective-layer thickness. Integration of these PIM-based TFC membranes with a variety of redox chemistries allows for the screening of suitable RFB systems that display high compatibility between membrane and redox couples, affording long-life operation with minimal capacity fade. Thickness optimization of TFC membranes further improves cycling performance and significantly restricts water transfer in selected RFB systems. |
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| Keywords: |
energy storage; ion-selective membranes; microporous polymers; redox flow batteries |
| College: |
Faculty of Science and Engineering |
| Funders: |
European Research Council (ERC) under the European Union's Horizon 2020 Research and Innovation Programme. Grant Numbers: 851272, ERC-StG-PE8-NanoMMES, 758370
Engineering and Physical Sciences Research Council. Grant Numbers: EPSRC, UK, EP/V047078/1
EPSRC Centre for Advanced Materials for Integrated Energy Systems. Grant Numbers: CAM-IES, EP/P007767/1
Energy SuperStore (UK Energy Storage Research Hub)
China Scholarships Council/University of Edinburgh
Department of Chemical Engineering at Imperial College
UK Research and Innovation. Grant Number: EP/Y014391/1 |
| Issue: |
20 |