Hutchinson

Corning Incorporated

Eurokera

Hutchinson, Sa

Bruno Dufour

Philippe Sonntag

David Ayme-Perrot

Baptiste Voillequin

Arnaud Prebe

David Henry

Benjamin Swoboda

Marie Dieudonne

Hugo Dorie

Philippe Lehuede

Nicolas Garois

Cedric Huillet

Nadine Poupa

Ksenia Astafyeva

Carole Buffry

Yannick Bureau

Florian Fannechere

Marc Zimmermann

Fabrice Chopard

Christophe Dominiak

Gaelle Ferriz

Cédric Huillet

Suresh Das

Marie Dieudonné

Pierre-Axel Parodat

Jerome Vivien Davidovits

Kokkuvayil V Radhakrishnan

Melanie Leclerc

Elodie Morisset

Gaëlle Ferriz

Jérémie Jacquemond

Julie Courtat

Stéphane Roger

Mangalam S Nair

Provided is a process for the degradation of at least one polymer of an alkene carbonate, a polymeric composition for a lithium-ion battery electrode having a degradation residue obtained by this process, a process for the preparation thereof, an electrode and a battery incorporating it and a degradation process for the sintering of ceramics. The degradation process includes a reaction at 120° C. and 270° C., and under air of a primary amine with a poly(alkene carbonate) polyol, which depolymerizes it in order to obtain a non-polymeric degradation residue. This composition includes an active material, an electrically conductive filler, a polymeric binder and a residue from the degradation under air between 120° C. and 270° C. of a sacrificial phase which includes the polymer and which has been melt blended beforehand with the active material, with the filler and with the binder in order to obtain a precursor mixture of the composition.

Process for the degradation of a poly(alkene carbonate), uses for preparing a lithium-ion battery electrode and the sintering of ceramics

The invention relates to a cathode composition usable in a lithium-ion battery, to a process for the preparation of this composition, to such a cathode and to a lithium-ion battery incorporating this cathode. The composition comprises an active material which comprises an alloy of lithium nickel cobalt aluminum oxides, an electrically conductive filler and a polymeric binder, and it is such that said polymeric binder comprises at least one modified polymer (Id2) which is the product of a thermal oxidation reaction of a starting polymer and which incorporates oxygenated groups comprising CO groups, the composition being capable of being obtained by the molten route and without evaporation of solvent by being the product of said thermal oxidation reaction applied to a precursor mixture comprising said active material, said electrically conductive filler, said starting polymer and a sacrificial polymer phase.

Cathode composition for lithium-ion battery

The invention relates to a material including a support consisting of a porous composite material including at least one polymer phase forming a binder based on at least one polymer selected from thermoplastic polymers, elastomers, and elastomer thermoplastics, and at least one filler selected from thermally conductive fillers, the pores of the support consisting of the porous composite material being partially or entirely filled with at least one phase-change material. The invention also relates to a method for producing said material.

Heat storage matertal

Provided is a process for the degradation of at least one polymer of an alkene carbonate, a polymeric composition for a lithium-ion battery electrode having a degradation residue obtained by this process, a process for the preparation thereof, an electrode and a battery incorporating it and a degradation process for the sintering of ceramics. The degradation process includes a reaction at 120&#xb0; C. and 270&#xb0; C., and under air of a primary amine with a poly(alkene carbonate) polyol, which depolymerizes it in order to obtain a non-polymeric degradation residue. This composition includes an active material, an electrically conductive filler, a polymeric binder and a residue from the degradation under air between 120&#xb0; C. and 270&#xb0; C. of a sacrificial phase which includes the polymer and which has been melt blended beforehand with the active material, with the filler and with the binder in order to obtain a precursor mixture of the composition.

Porous polymeric materials having a very high content of thermally conductive and/or electrically conductive fillers. Process for the preparation of the porous composite material including at least one binder-forming polymeric phase and one or more fillers, this process including the stages of hot mixing, by the molten route, the polymeric phase, the fillers and a sacrificial polymeric phase, so as to obtain a mixture, of shaping the mixture and of removing the sacrificial polymeric phase.

Thermally and/or electrically conductive materials and method for the production thereof

The invention relates to a process for preparing a gelled, dried composition forming a monolithic aerogel with a heat conductivity of less than or equal to 40 mW&#xb7;m&#xb7;Kand derived from a resin of polyhydroxybenzene(s) and formaldehyde(s), to this aerogel composition and to the use thereof. This process comprises: According to the invention, step a) is performed in the presence of a cationic polyelectrolyte dissolved in this solvent, and the process also comprises a step d) of heat treatment under inert gas of the dried gel obtained in step c) at temperatures of between 150&#xb0; C. and 500&#xb0; C. to obtain the non-pyrolyzed aerogel whose heat conductivity is substantially unchanged, even after exposure to a humid atmosphere.

Monolithic, super heat-insulating, organic aerogel composition preparation method, said composition, and the use thereof

Polymer composition for an electrode, method, and a lithium-ion battery including same are provided. This composition includes an active material having a graphite usable in the anode, an electrically conductive filler and a cross-linked elastomer binder that includes a hydrogenated acrylonitrile butadiene copolymer (HNBR). The binder includes a non-hydrogenated acrylonitrile butadiene copolymer (NBR) and/or a HNBR with an acrylonitrile content that is at least 40% by weight and cross-linked by thermal oxidation. This method includes: a) mixing the active material, the binder in a non-cross-linked state and the electrically conductive filler, to obtain a precursor mixture of the composition, b) depositing the mixture on a metal current collector so that the mixture forms a non-cross-linked film, then c) thermal oxidation of the non-cross-linked film under an atmosphere containing oxygen at a temperature of between 200 and 300&#xb0; C., to obtain the electrode in which the binder is cross-linked.

Anode for a lithium-ion battery cell, production method thereof and battery including same

A method for preparing an article, the structure of which comprises a substrate of a glass or a glass-ceramic and a coating fixed to at least one portion of the surface of the substrate. In a characteristic way, the coating is generated from at least one loaded polysilsesquioxane resin; the at least one polysilsesquioxane resin not containing any aryl radical in its structure.

Preparation of an article of a glass or a glass-ceramic having an improved coating and that article

A process for preparing a polymeric composition for forming a lithium-ion or sodium-ion battery electrode or a supercapacitor electrode or for exhibiting magnetic properties, to such a polymeric composition obtained by means of this process, to a mixture which is a precursor of the composition, obtained by means of a first mixing step of the process, and to this electrode. The process for preparing this composition comprises: The sacrificial phase is used in step a) according to a weight fraction in the mixture being greater than or equal to 15%.

Process for preparing an electrode composition or composition with magnetic properties, mixture and composition obtained by means of said process and said electrode

The invention relates to a gelled aqueous polymer composition for forming, by means of drying then pyrolysis, a monolithic porous carbon, to a pyrolysed carbonated composition produced by the drying, followed by the pyrolysis, of said gelled composition, to a porous carbon electrode for a supercapacitor comprising said pyrolysed composition, and to methods for producing said respectively gelled and pyrolysed compositions. A gelled composition according to the invention, produced from the polycondensation of polyhydroxybenzene(s) and hexymethylenetetramine, is such that the hexymethylenetetramine comprised therein represents a mass fraction of between 7% and 15% inclusive. Said gelled composition is produced by a) polycondensation in an aqueous solvent of the polyhydroxybenzene(s) and hexymethylenetetramine, followed by b) gelling by heating of said polycondensate.

Gelled aqueous polymer composition, pyrolysed carbonated composition produced therefrom for a supercapacitor electrode, and methods for the production thereof

A non-crosslinked, gelled carbonaceous composition and a pyrolyzed composition respectively forming an aqueous polymer gel and the pyrolysate thereof in the form of porous carbon is provided. Also provided is a production method thereof, to a porous carbon electrode formed by the pyrolyzed composition, and to a supercapacitor containing the electrodes. The gelled, non-crosslinked composition (G2) is based on a resin created at least partly from polyhydroxybenzene(s) R and formaldehyde(s) F and comprises at least one hydrosoluble cationic polyelectrolyte P. The composition forms a rheofluidifying physical gel. A pyrolyzed carbonaceous composition having a carbon monolith, is the product of coating, crosslinking, drying then pyrolysis of the non-crosslinked gelled composition, the carbon monolith being predominantly microporous and able to form a supercapacitor electrode having a thickness of less than 1 mm.

Composition for an organic gel and the pyrolysate thereof, production method thereof, electrode formed by the pyrolysate and supercapacitor containing same

Provided is a gelled carbon-based composition forming an organic polymeric monolithic gel capable of forming a porous carbon monolith by pyrolysis, a use thereof and a process for preparing this composition. A composition according to the invention is based on a resin derived at least partly from polyhydroxybenzene(s) R and formaldehyde(s) F, has a thermal conductivity of less than or equal to 40 mW&#xb7;m&#xb7;K, and includes at least one water-soluble cationic polyelectrolyte P. A process for preparing this composition comprises: a) polymerization, in an aqueous solvent, of the polyhydroxybenzene(s) and formaldehyde(s), in the presence of at least one cationic polyelectrolyte dissolved in this solvent and of a catalyst, in order to obtain a solution based on the resin, b) gelling of the solution in order to obtain a gel, and c) drying in order to obtain the organic polymeric monolithic gel.

Thermally insulating composition for organic monolithic gel, use thereof and process for preparing same

Electrode for storing electrical energy including a metal current collector and an active material, the current collector being coated on at least one portion of one of its faces with at least one protective layer placed between the current collector and the active material, the protective layer including: (A) a polymer matrix including: (A1) at least one cross-linked epoxy polymer or copolymer, (A2) at least one elastomer, and (B) conductive fillers. This system is used in aqueous electrolyte supercapacitors, the protective layer allowing a very significant reduction in corrosion problems that are generally associated with the use of aqueous electrolytes to be achieved and the adhesion of the active material to the metal collector to be improved.

Conductive electrodes and their manufacturing process

The invention relates to a gelled carbon-based composition forming an organic polymeric monolithic gel which is suitable for forming an aerogel by drying, to uses and to a process for preparing this carbon-based composition. The invention applies especially to the production of such gels having a very low density and a very low heat conductivity, a very high specific surface area and a satisfactory compression strength, for their use as thermal superinsulators or as carbon-based electrode precursors of supercondensers. A composition according to the invention comprises a resin at least partly derived from polyhydroxybenzenes H and from formaldehyde(s) F, said polyhydroxybenzenes comprising at least one unsubstituted polyhydroxybenzene R' and at least one polyhydroxybenzene substituted with one or two alkyl groups. This composition is such that said polyhydroxybenzenes comprise several said unsubstituted polyhydroxybenzenes R and R&#x2032; and in that the composition comprises a water-soluble cationic polyelectrolyte P.

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Champagne sur Seine, France

Bruno Dufour