Poly(vinylidene fluoride)-based macroporous separators for supercapacitors

Authors :: D. Karabelli
Fannie Alloin
Jean-Claude Leprêtre
J.-Y. Sanchez
Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces (LEPMI )
Institut de Chimie du CNRS (INC)-Institut National Polytechnique de Grenoble (INPG)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Université Joseph Fourier - Grenoble 1 (UJF)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)
Source :: Electrochimica Acta, Electrochimica Acta, Elsevier, 2011, 57, pp.98-103. ⟨10.1016/j.electacta.2011.03.033⟩
Publication Year :: 2011
Publisher :: HAL CCSD, 2011.
Abstract: International audience; 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 (18 mS cm−1 at 25 °C) compared with commercial cellulose and Celgard™ separators.

Language :: English
ISSN :: 00134686
Database :: OpenAIRE
Journal :: Electrochimica Acta, Electrochimica Acta, Elsevier, 2011, 57, pp.98-103. ⟨10.1016/j.electacta.2011.03.033⟩
Accession number :: edsair.doi.dedup.....d39f11bd8bbfca2758d0ea1261323a22
Full Text :: https://doi.org/10.1016/j.electacta.2011.03.033⟩