Development and modification of innovative macroporous separators for double layers capacitors
type: Dataset
contact point: Organization
  fn: CCSD
keyword: rheologie
keyword: membrane-poreuse
keyword: morphologie
keyword: melange
keyword: polymeres-fluores
keyword: polyoxyethylene
keyword: theses
keyword: extrusion
keyword: infoeu-reposemanticsdoctoralthesis
keyword: chimothechemical-sciencesother
keyword: co-continuite
landing page: https://theses.hal.science/tel-00699804
description: This thesis specialized in "Chemistry and Materials Science" is part of the international cluster Axelera "Chemistry and Environment", and in the R&D program Sepbatt SP.4.2.Duramat. Its aim is to develop a protocol for extrusion manufacturing of a porous membrane for double layers capacitor. This thin membrane plays a very important role in the electrochemical cell. It makes possible, thanks to its porosity, the flow of ions between two electrodes while avoiding short circuit, but also provides good mechanical properties of the final device. The desire of the manufacturer of double layers capacitor is to study the possibility of using a new method of separating membranes manufacturing, using mixtures of fluorinated polymers / polyethylene oxide and the extrusion technique. The incompatibility of the various components used leads to heterogeneous mixtures revealing multiphasic structures with different morphologies. It is then important to characterize and study the evolution of these morphologies and specifically co-continuous morphology. Various studies have been carried out to characterize this evolution. The continuity diagrams of the systems were determined using the technique of selective extraction and confirmed by scanning electron microscopy, while a rheological study allowed to establish a relationship between the morphology and behavior in the melt of the different systems used. The project is then completed through the physico-chemical characterization of porous membranes extruded
identifier: NNT: 2011STET4015
issued: 2026-05-17T19:32:17.952343
language: fr
modified: 2026-05-17T19:32:17.952359

test_moissonnage_selune
type: Agent

Development and modification of innovative macroporous separators for double layers capacitors
type: Distribution
access URL: https://theses.hal.science/tel-00699804
format: HTML
issued: 2026-05-17T19:32:18.088667
modified: 2026-05-17T19:32:17.897642