Abstract:
A subject-matter of the invention is a novel process for the preparation of sulphur-modified monolithic porous carbon-based materials by impregnation with a strong sulphur-based acid, the materials capable of being obtained according to this process and the use of these materials with improved supercapacitance properties to produce electrodes intended for energy storage systems. Electrodes composed of sulphur-modified monolithic porous carbon-based materials according to the invention and lithium batteries and supercapacitors having such electrodes also form part of the invention.
Abstract:
The present invention relates to a novel polymer composition having conductive properties comprising: (a) at least one dispersion or suspension of elastomer having a Tg 80° C., glass particles, silica particles, and/or particles of metal oxides chosen from the following metal oxides: ZnO, MgO, MgAl2O4, and borosilicate particles. A process for preparing such a composition, a conductive transparent film resulting from the film formation of such a composition, a process for preparing such a film, and also articles, and more particularly electronic devices, coated with such a composition or with such a film are, also part of the invention.
Abstract:
A subject-matter of the invention is a novel process for the preparation of sulphur-modified monolithic porous carbon-based materials by impregnation with a strong sulphur-based acid, the materials capable of being obtained according to this process and the use of these materials with improved supercapacitance properties to produce electrodes intended for energy storage systems.Electrodes composed of sulphur-modified monolithic porous carbon-based materials according to the invention and lithium batteries and supercapacitors comprising such electrodes also form part of the invention.
Abstract:
A supercapacitor cell is provided having unit cells arranged in series and encapsulated in a flexible and leak-tight packaging, and a supercapacitor module having at least one stack of several of these cells. The cell includes n unit cells (n≧2) arranged side by side in series and encapsulated in the packaging, each unit cell having two upper and lower electrodes, a membrane separating them and an ionic electrolyte, the cell having inside of the packaging a plurality of current collectors, two upper and lower collector parts of which respectively cover the upper and lower electrodes. A pair of adjacent unit cells is covered with an upper or lower collector common to this pair, two truncated upper and/or lower collectors formed at two ends of the cell, two adjacent collectors respectively terminated by facing edge sections electrically insulated from one another by an insulating adhesive material covering them.
Abstract:
A supercapacitor cell is provided having unit cells arranged in series and encapsulated in a flexible and leak-tight packaging, and a supercapacitor module having at least one stack of several of these cells. The cell includes n unit cells (n≧2) arranged side by side in series and encapsulated in the packaging, each unit cell having two upper and lower electrodes, a membrane separating them and an ionic electrolyte, the cell having inside of the packaging a plurality of current collectors, two upper and lower collector parts of which respectively cover the upper and lower electrodes. A pair of adjacent unit cells is covered with an upper or lower collector common to this pair, two truncated upper and/or lower collectors formed at two ends of the cell, two adjacent collectors respectively terminated by facing edge sections electrically insulated from one another by an insulating adhesive material covering them.
Abstract:
The invention relates to a method for modifying the surface of a membrane by plasma treatment, wherein said method imparts water-repellent and imperviousness properties to said membrane while preserving the steam perviousness and the elastic properties thereof. The method comprises, inter alia, a step of treating the membrane with a plasma of a precursor compound selected from a hydrocarbon gas, a fluorocarbon gas, mixtures thereof, a fluorocarbon liquid, a fluorocarbon solid, wherein the precursor compound is selected in such a way that the F/C ratio is lower than 2, followed by a step of treating the same surface of the substrate from the previous step with a plasma of a fluorocarbon gas selected in such a way that the F/C ratio is at least 2. The invention also relates to the resulting membranes.
Abstract translation:本发明涉及一种通过等离子体处理改性膜表面的方法,其中所述方法赋予了所述膜的防水和不透水性,同时保持了蒸汽透水性及其弹性。 该方法尤其包括用选自烃气体,碳氟化合物气体,其混合物,碳氟化合物液体,碳氟化合物固体的前体化合物的等离子体处理膜的步骤,其中前体化合物在这种 F / C比低于2的方式,然后用前述步骤处理与基板的相同表面的步骤,其中选择的氟碳气体的等离子体使得F / C比至少为2 本发明还涉及所得到的膜。
Abstract:
Novel articles, in particular films, made from polymers, which are elastic, impermeable to water and permeable to water vapor. Said articles are made from a composition comprising a dispersion of an elastomer in an aqueous solvent, a hydrophilic compound and a cross-linking agent.
Abstract:
Novel articles, in particular films, made from polymers, which are elastic, impermeable to water and permeable to water vapour. Said articles are made from a composition comprising a dispersion of an elastomer in an aqueous solvent, a hydrophilic compound and a cross-linking agent.