Abstract: A method for recycling prepreg materials including the steps of: a) providing at least one prepreg material including a first thermosetting polymer resin, partially crosslinked, and a weave including fibers, b) applying a vitrimerization reaction mixture to the at least one prepreg material, c) placing the at least one prepreg material coated with the vitrimerization reaction mixture on a mold of a predefined shape, d) applying a thermocompression to the at least one prepreg material at a temperature (T1) greater than or equal to the glass transition temperature (Tg) of the first resin, so as to activate the reaction between the vitrimerization reaction mixture and the thermosetting polymer leading to the formation of a vitrimer polymer and the transformation of the at least one prepreg material into a vitrimer composite material of the predefined shape.

Abstract: A method for recycling prepreg materials including the steps of: a) providing at least one prepreg material including a first thermosetting polymer resin, partially crosslinked, and a weave including fibers, b) applying a vitrimerization reaction mixture to the at least one prepreg material, c) placing the at least one prepreg material coated with the vitrimerization reaction mixture on a mold of a predefined shape, d) applying a thermocompression to the at least one prepreg material at a temperature (T1) greater than or equal to the glass transition temperature (Tg) of the first resin, so as to activate the reaction between the vitrimerization reaction mixture and the thermosetting polymer leading to the formation of a vitrimer polymer and the transformation of the at least one prepreg material into a vitrimer composite material of the predefined shape.

Abstract: A method for manufacturing an electrode with an integrated separator, the thereby manufactured electrode, and an electrochemical system such as a lithium ion accumulator including such an electrode.

Abstract: Composite material comprising nano-objects made of at least one first electron conducting material and nano-objects or submicron objects made of at least one second material differing from the first material; said composite material comprising nanostructures each consisting of the nano-objects made of at least one first electron conducting material marked with a first molecule, the nano-objects or submicron objects made of at least one second material differing from the first material being marked with a second molecule and being self-assembled and attached onto the nano-objects made of at least one first material by specific recognition between the first molecule and the second molecule, said nanostructures being homogeneously distributed in the material, the nano-objects made of at least one first electron conducting material being selected from among carbon nanotubes and carbon fibres, and the nano-objects or submicron objects made of at least one second material differing from the first material being sel

Abstract: A reinforced gelled capsule comprising a solvent, in which are distributed in a homogeneous manner nano-objects, and/or sub-micron objects, and/or nanostructures, coated with macromolecules of polysaccharide(s), the said macromolecules forming, in at least one part of the capsule, a gel by cross-linking with the cations of at least one element, and in which the external surface of the capsule is covered with crystals made of hydroxide of said element. A method for preparing the reinforced, gelled capsule. A reinforced, lyophilised, gelled capsule, prepared by means of lyophilisation, then followed by exposure to a gas containing carbon dioxide, of the said reinforced, gelled capsule and method of preparation thereof.

Abstract: A nanocomposite material comprising nano-objects made of at least one first electron conducting material, such as carbon, and nano-objects or submicron objects made of at least one second material, such as silicon, different from the first material; said nanocomposite material comprising nanostructures each consisting of a three-dimensional network consisting of the nano-objects made of at least one first electron conducting material bound and maintained by a polysaccharide, the nano-objects or the submicron objects made of at least one second material different from the first material being self-assembled around said network and being attached to the nano-objects made of at least one first electron conducting material by said polysaccharide and said nanostructures being homogenously distributed in the material. A method for preparing said nanocomposite material. An ink comprising said composite material. An electrode comprising as an electrochemically active material said composite material.

Abstract: The master batch for molding includes at least one inorganic powder, advantageously ceramic or metallic; an organic mixture, advantageously polymer, comprising: a stable polymer having good ductility features, from 30 to 90% by mass of the mixture; a lubricant, from 5 to 30% by mass of the mixture; a plasticizing polymer, from 5 to 30% by mass of the mixture; with a [% by mass of the lubricant]/[% by mass of the stable polymer] ratio smaller than or equal to 1, advantageously strictly smaller than 1.

Abstract: The invention relates to an assembly comprising a current collector and a silicon electrode, wherein the current collector and the electrode are connected together via at least one of the surfaces thereof by an elastic polymer layer. The invention can be used in the field of lithium batteries.

Abstract: Silicon/carbon composite material, consisting of at least one capsule comprising a silicon shell within which there are carbon nano-objects partially or totally covered with silicon, and silicon nano-objects. The capsule may further comprise an amorphous carbon shell inside the silicon shell and adjacent to the latter. A method for preparing said composite material is disclosed.

Abstract: A fuel cell element including an assembly of a membrane, a first electrode, and a second electrode, and a mechanism holding the assembly together, which forms a peripheral support thereof and that includes an electrical connection and a mechanism for circulation of fluid and for supply of the fluid into the assembly.

Abstract: The master batch for molding includes at least one inorganic powder, advantageously ceramic or metallic; an organic mixture, advantageously polymer, comprising: a stable polymer having good ductility features, from 30 to 90% by mass of the mixture; a lubricant, from 5 to 50% by mass of the mixture; a plasticizing polymer, from 5 to 30% by mass of the mixture; with a [% by mass of the lubricant]/[% by mass of the stable polymer] ratio smaller than or equal to 1, advantageously strictly smaller than 1.

Abstract: The invention relates to an ion/electron-conducting composite polymer membrane (10?), which comprises at least two gas-tight ion-conducting polymer portions (11?) joined together directly by a gas-tight electron-conducting polymer portion (12?). It also relates to processes that enable this membrane to be manufactured, and also to a planar fuel cell core comprising it. Applications: production of planar fuel cells used for generating electrical power intended for stationary applications, transport applications and portable and transportable applications.

Abstract: A bipolar battery including unit cells fitted with an element including a first electronic conductive support, a second electronic conductive support, an electronic conductive connection connecting the first and the second support, with each support including a first and a second face separate from the first and second faces of the other support, a positive electrode material deposited on one of the faces of the first conductor, and a negative electrode material deposited on one of the faces of the other support. The positive electrode material is supported by the first support, and is positioned facing a negative electrode material, the negative electrode material is supported by the second support, and is positioned opposite a positive electrode material, where the facing electrode materials are separated by an insulator containing an electrolyte, thus forming two juxtaposed unit cells.

Abstract: An agglomerate or capsule capable of being prepared by freeze-drying a first agglomerate or capsule, said first agglomerate comprising a solvent, nanoobjects or nanostructures coated with macromolecules of polysaccharides being homogeneously distributed in said agglomerate or said capsule, and said macromolecules forming in at least one portion of the first agglomerate, a gel by crosslinking with positive ions. A nanocomposite material comprising this agglomerate. A method for preparing this agglomerate and this nanocomposite material.

Abstract: A fuel cell element including an assembly of a membrane, a first electrode, and a second electrode, and a mechanism holding the assembly together, which forms a peripheral support thereof and that includes an electrical connection and a mechanism for circulation of fluid and for supply of the fluid into the assembly.

Abstract: The invention concerns an elementary cell (1) for a fuel cell comprising two electrodes between which an ion exchange membrane (20) is positioned. According to the invention, one of the two electrodes has a threaded surface carrying the ion exchange membrane (20), the assembly formed by this electrode and the ion exchange membrane (20) being able to be assembled by screwing onto a threaded surface belonging to the other of the two electrodes. The invention also concerns a fuel cell provided with a plurality of elementary cells (1).

Abstract: The invention relates to an ion/electron-conducting composite polymer membrane (10?), which comprises at least two gas-tight ion-conducting polymer portions (11?) joined together directly by a gas-tight electron-conducting polymer portion (12?). It also relates to processes that enable this membrane to be manufactured, and also to a planar fuel cell core comprising it. Applications: production of planar fuel cells used for generating electrical power intended for stationary applications, transport applications and portable and transportable applications.

Abstract: The invention concerns an elementary cell (1) for a fuel cell comprising two electrodes between which an ion exchange membrane (20) is positioned. According to the invention, one of the two electrodes has a threaded surface carrying the ion exchange membrane (20), the assembly formed by this electrode and the ion exchange membrane (20) being able to be assembled by screwing onto a threaded surface belonging to the other of the two electrodes. The invention also concerns a fuel cell provided with a plurality of elementary cells (1).