Ultra-High Proton/Vanadium Selectivity for Hydrophobic Polymer Membranes with Intrinsic Nanopores for Redox Flow Battery

Hydrophobic polymers of intrinsic microporosity (PIM‐1) are successfully demonstrated as proton conducting separators in the all‐vanadium redox flow battery with the unprecedented infinite proton/vanadium selectivity. A battery fabricated with a nanocomposite comprising a microporous support membran...

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Bibliographic Details
Published in:Advanced energy materials 2016-08, Vol.6 (16), p.np-n/a
Main Authors: Chae, Il Seok, Luo, Tao, Moon, Gi Hyeon, Ogieglo, Wojciech, Kang, Yong Soo, Wessling, Matthias
Format: Article
Language:English
Subjects:
Conducting polymers
Membranes
Nanocomposites
polymers
Porosity
Powder injection molding
proton conductors
Rechargeable batteries
redox flow batteries
Selectivity
Vanadium
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Summary:Hydrophobic polymers of intrinsic microporosity (PIM‐1) are successfully demonstrated as proton conducting separators in the all‐vanadium redox flow battery with the unprecedented infinite proton/vanadium selectivity. A battery fabricated with a nanocomposite comprising a microporous support membrane and nanometer‐thick selective PIM layer shows an energy efficiency of up to nearly 99%, while it is also stable during 100 cycles in cyclic performance.
ISSN:1614-6832
1614-6840
DOI:10.1002/aenm.201600517