Novel Macroporous PVdF based separators for supercapacitors
type: Dataset
contact point: Organization
  fn: CCSD
keyword: pvdf
keyword: macroporous-membranes
keyword: phase-inversion
keyword: supercondensateur
keyword: irradiation-gamma
keyword: inversion-de-phase
keyword: gamma-irradiation
keyword: composite-membranes
keyword: theses
keyword: supercapacitor
keyword: membranes-composites
keyword: spiotherengineering-sciences-physicsother
keyword: infoeu-reposemanticsdoctoralthesis
keyword: membranes-macroporeuses
landing page: https://theses.hal.science/tel-00680737
description: Abstract In recent years a strong interest has been devoted to supercapacitor technology. However, while great attention has been paid to electrodes, electrolytes and gel polymer electrolytes, only few reports have been dedicated to macroporous separators. Hereby, in the frame of project SEPBATT/DURAMAT, macroporous poly(vinylidene fluoride) (PVdF) based separators were prepared by phase inversion technique for applications of supercapacitors. Their mechanical properties are relatively lower than those of commercial membranes nevertheless such membranes exhibit good thermal stability. Whereas commercial cellulose based separators filled with tetraethyl ammonium tetrafluoroborate + CH3CN electrolyte show 10 mS/cm (at 25°C), our PVdF macroporous separators exhibit significantly higher conductivity (18 mS/cm) under the same conditions. This study was completed with application of reinforcement techniques (addition of composites, crosslinking by irradiation) on to previously prepared membranes in order to increase their mechanical strength. Reinforced membranes showed good high mechanical strength whereas the ionic conductivity is almost maintained (15mS/cm).
identifier: NNT: 2011GRENI035
issued: 2026-05-24T02:15:37.121991
language: fr
modified: 2026-05-24T02:15:37.121997

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type: Agent

Novel Macroporous PVdF based separators for supercapacitors
type: Distribution
access URL: https://theses.hal.science/tel-00680737
format: HTML
issued: 2026-05-24T02:15:37.147637
modified: 2026-05-24T02:15:37.085248