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Ultra‐High Proton/Vanadium Selectivity for Hydrophobic Polymer Membranes with Intrinsic Nanopores for Redox Flow Battery
Author(s) -
Chae Il Seok,
Luo Tao,
Moon Gi Hyeon,
Ogieglo Wojciech,
Kang Yong Soo,
Wessling Matthias
Publication year - 2016
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201600517
Subject(s) - vanadium , flow battery , microporous material , materials science , redox , battery (electricity) , polymer , membrane , selectivity , nanotechnology , proton , energy storage , chemical engineering , organic chemistry , chemistry , composite material , thermodynamics , physics , power (physics) , biochemistry , quantum mechanics , engineering , metallurgy , catalysis
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.