1. Poly(vinylidene fluoride)-based macroporous separators for supercapacitors
- Author
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Karabelli, D., Leprêtre, J.-C., Alloin, F., and Sanchez, J.-Y.
- Subjects
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COPOLYMERS , *DIFLUOROETHYLENE , *POROUS materials , *MACHINE separators , *SUPERCAPACITORS , *ACETONE , *THERMAL properties of polymers , *MECHANICAL properties of polymers , *IONIC conductivity - Abstract
Abstract: 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 (TEABF4) in acetonitrile (AN) it provided enhanced conductivity (18mScm−1 at 25°C) compared with commercial cellulose and Celgard™ separators. [Copyright &y& Elsevier]
- Published
- 2011
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