Imperial College London
Portrait Picture

Dr Qilei Song

Faculty of Engineering, Department of Chemical Engineering

Reader in Chemical Engineering
 
 
 
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Contact

 

+44 (0)20 7594 5623q.song Website CV

 
 
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Location

 

ACEX 409AACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Yuan:2022:10.1016/j.joule.2022.02.016,
author = {Yuan, Z and Liang, L and Dai, Q and Li, T and Song, Q and Zhang, H and Hou, G and Li, X},
doi = {10.1016/j.joule.2022.02.016},
journal = {Joule},
title = {Low-cost hydrocarbon membrane enables commercial-scale flow batteries for long-duration energy storage},
url = {http://dx.doi.org/10.1016/j.joule.2022.02.016},
volume = {6},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Flow batteries are promising for long-duration grid-scale energy storage. Future terawatt-scaledeployment of flow batteries will require substantial capital cost reduction, particularly low-costelectrolytes and hydrocarbon ion exchange membranes. However, integration of hydrocarbonmembranes with novel flow battery chemistries in commercial-scale stacks is yet to be demonstrated.Here we report the pilot scale synthesis and roll-to-roll manufacturing of sulfonated poly(ether etherketone) (SPEEK) membranes and demonstrate their high hydroxide conductivity and chemical stabilityin kW-scale alkaline-based flow batteries. After exposure to a 5 mol L-1 NaOH solution at 60 °C for 41 days,the SPEEK membrane still enabled a stable alkaline zinc-iron flow battery performance for more than 650cycles (more than 650 hours) at high current densities (80 to 160 mA cm-2). Furthermore, the membranewas integrated in flow battery stacks with power up to 4000 W, which demonstrated a high energyefficiency of 85.5% operated at 80 mA cm-2 and long term stable operation over 800 h as well assubstantial cost savings relative to Nafion membranes. This work illustrates a potential pathway formanufacturing and upscaling of next-generation cost-effective flow batteries based on low-costhydrocarbon membranes developed in past decades to translate to large scale applications for longduration energy storage.
AU  - Yuan,Z
AU  - Liang,L
AU  - Dai,Q
AU  - Li,T
AU  - Song,Q
AU  - Zhang,H
AU  - Hou,G
AU  - Li,X
DO  - 10.1016/j.joule.2022.02.016
PY  - 2022///
SN  - 2542-4351
TI  - Low-cost hydrocarbon membrane enables commercial-scale flow batteries for long-duration energy storage
T2  - Joule
UR  - http://dx.doi.org/10.1016/j.joule.2022.02.016
UR  - https://www.sciencedirect.com/science/article/pii/S2542435122000976
UR  - http://hdl.handle.net/10044/1/95880
VL  - 6
ER  -
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