Macroporous polymer separators based on poly(vinylidene fluoride) (PVdF) and several VdF copolymers were prepared by a phase inversion process using acetone as a solvent. The resulting macroporous separators were characterized in terms of morphology, swelling behaviour, thermal and mechanical properties and ionic conductivity. The PVdF separator had a highly porous structure (80%) and exhibited good mechanical properties. Once filled by a molar solution of tetraethylammonium tetrafluoroborate (TEABF(4)) in acetonitrile (AN) it provided enhanced conductivity (18 mS cm(-1) at 25 degrees C) compared with commercial cellulose and Celgard (TM) separators. (C) 2011 Elsevier Ltd. All rights reserved.
机构:
College of Materials Science and Engineering, Donghua University, Shanghai 200051Institute of Macromolecules and Bioengineering, North University of China, Taiyuan 030051
机构:
Univ Lyon, F-42023 St Etienne, France
CNRS, UMR5223, F-42023 St Etienne, France
Univ St Etienne, F-42023 St Etienne, FranceUniv Lyon, F-42023 St Etienne, France
Akkoyun, Meral
Carrot, Christian
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Univ Lyon, F-42023 St Etienne, France
CNRS, UMR5223, F-42023 St Etienne, France
Univ St Etienne, F-42023 St Etienne, FranceUniv Lyon, F-42023 St Etienne, France
Carrot, Christian
Blottiere, Benoit
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Univ Lyon, F-42023 St Etienne, France
CNRS, UMR5223, F-42023 St Etienne, France
Univ St Etienne, F-42023 St Etienne, FranceUniv Lyon, F-42023 St Etienne, France