A polydopamine-coated polyamide thin film composite membrane with enhanced selectivity and stability for vanadium redox flow battery

2020 ◽  
Vol 601 ◽  
pp. 117906
Author(s):  
Xiangguo Teng ◽  
Yingying Guo ◽  
Deli Liu ◽  
Guowei Li ◽  
Cong Yu ◽  
...  
Keyword(s):  
Thin Film ◽  
Composite Membrane ◽  
Vanadium Redox Flow Battery ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Film Composite ◽  
Thin Film Composite Membrane ◽  
Thin Film Composite ◽  
Vanadium Redox ◽  
Enhanced Selectivity

scholarly journals Publisher Correction: Thin-film composite membrane breaking the trade-off between conductivity and selectivity for a flow battery

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Qing Dai ◽  
Zhiqiang Liu ◽  
Ling Huang ◽  
Chao Wang ◽  
Yuyue Zhao ◽  
...  
Keyword(s):  
Thin Film ◽  
Composite Membrane ◽  
Flow Battery ◽  
Trade Off ◽  
Film Composite ◽  
Thin Film Composite Membrane ◽  
Thin Film Composite

scholarly journals Thin-film composite membrane breaking the trade-off between conductivity and selectivity for a flow battery

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Qing Dai ◽  
Zhiqiang Liu ◽  
Ling Huang ◽  
Chao Wang ◽  
Yuyue Zhao ◽  
...  
Keyword(s):  
Thin Film ◽  
Power Density ◽  
Composite Membrane ◽  
Ion Selectivity ◽  
Flow Battery ◽  
Selective Layer ◽  
Trade Off ◽  
Film Composite ◽  
Thin Film Composite Membrane ◽  
Thin Film Composite

AbstractA membrane with both high ion conductivity and selectivity is critical to high power density and low-cost flow batteries, which are of great importance for the wide application of renewable energies. The trade-off between ion selectivity and conductivity is a bottleneck of ion conductive membranes. In this paper, a thin-film composite membrane with ultrathin polyamide selective layer is found to break the trade-off between ion selectivity and conductivity, and dramatically improve the power density of a flow battery. As a result, a vanadium flow battery with a thin-film composite membrane achieves energy efficiency higher than 80% at a current density of 260 mA cm−2, which is the highest ever reported to the best of our knowledge. Combining experiments and theoretical calculation, we propose that the high performance is attributed to the proton transfer via Grotthuss mechanism and Vehicle mechanism in sub-1 nm pores of the ultrathin polyamide selective layer.

scholarly journals Thin-film composite membrane on a compacted woven backing fabric for pressure assisted osmosis

Desalination ◽  
2017 ◽  
Vol 406 ◽  
pp. 98-108 ◽  
Author(s):  
Soleyman Sahebi ◽  
Sherub Phuntsho ◽  
Leonard Tijing ◽  
Gang Han ◽  
Dong Suk Han ◽  
...  
Keyword(s):  
Thin Film ◽  
Composite Membrane ◽  
Film Composite ◽  
Thin Film Composite Membrane ◽  
Thin Film Composite
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