Abstract: A composition for manufacturing an electrode, the composition including an electrically conductive carbon-based compound, at least one species able to form a catalyst, and cellulose microfibrils encapsulating chitosan. The cellulose microfibrils create a fibrous mesh binding the composition while limiting coating of the catalyst. Thus, the catalyst remains accessible to the surrounding environment, to allow the redox reactions at the electrode. The electrochemical performances of the electrode are consequently improved. The composition is furthermore particularly adapted for shaping an electrode by 3D printing.

Abstract: A method for printing at least one conductive track on the surface of an object, using at least one arm robot and at least one conductive ink print head. The object being arranged in a working area of the robot including taking a 3D scan of the object using a scanner mounted on the arm of the robot which controls the movement relative to the object. A digital model of the scanned portion of the surface of the object is constructed. A conductive track 10 is drawn digitally on the previously constructed digital model. Depending on the drawing of the conductive track, a path for the print head is generated. The conductive track is printed using the print head mounted on the arm of the robot which controls the movement relative to the object, by following the previously generated path.

Abstract: A thermosetting composite material and its method for 3D printing by extrusion, the thermosetting composite material including a furan polymer forming a thermosetting matrix, a solvent, and a material formed from particles chosen from among micrometric particles, nanometric particles, even a mixture of micrometric particles and nanometric particles, these particles being with the basis of a compound comprising more than 40% by mass of carbon. The thermosetting composite material and its 3D printing method enabling to obtain an object having dimensional tolerances of between 2.5 and 5% with respect to the numerical model, and a resistance to high temperatures going up to 300° C. The thermosetting composite material and its 3D printing method representing a biosourced and cheaper alternative with respect to synthetic thermoplastic polymers and their usual printing method.

Abstract: A process for manufacturing a flexible cellulosic substrate comprises at least one functional circuit and/or at least one functional board. The flexible cellulosic substrates are made functional by printing with a functional ink, which provides good performance (signal speed/dielectric properties of the substrate), is economical, thermally and dimensionally stable, and is able to be produced simply and reproducibly at an industrial rate. The process starts with an aqueous fibrous suspension comprising paper pulp and/or a pulp of (micro/macro) cellulose fibrils and produces a wet fibrous mat from this suspension. One of the faces of the wet fibrous mat is printed by means of at least one functional ink capable of transmitting, emitting, and/or processing at least one signal in order to produce at least one topography comprising at least one track for circulation of the signal. Printed circuits and functional boards are obtained by the manufacturing process.

Abstract: The present invention relates to a printing or spray deposition method for preparing a supported flexible electrode and to a method for manufacturing a lithium-ion battery.

Abstract: A method for preparing self-supporting flexible electrodes is provided using refined cellulose fibers as binder. The negative or positive self-supporting flexible electrode is obtained by such method. A Li-ion battery is also provided in which at least one electrode is a self-supporting flexible electrode.

Abstract: The present invention relates to a printing or spray deposition method for preparing a supported flexible electrode and to a method for manufacturing a lithium-ion battery.

Abstract: The present invention relates to a method for preparing self-supporting flexible electrodes by a method that implements refined cellulose fibres as binder. It relates also to the negative or positive self-supporting flexible electrode obtained by such a method and an Li-ion battery in which at least one electrode is a self-supporting flexible electrode.

Abstract: A method for texturing an active surface of a photovoltaic cell in single-crystal silicon or poly-crystal silicon includes depositing a resin on the active surface of the cell, texturing the resin on the active surface with geometric patterns, and texturing the active surface of the cell by eliminating the deposited resin. The depositing of the resin is preceded by pre-texturing the resin on a depositing tool. The texturing step of the resin on the active surface is simultaneous with the depositing of the resin on the active surface.

Abstract: A method for texturing an active surface of a photovoltaic cell in single-crystal silicon or poly-crystal silicon includes depositing a resin on the active surface of the cell, texturing the resin on the active surface with geometric patterns, and texturing the active surface of the cell by eliminating the deposited resin. The depositing of the resin is preceded by pre-texturing the resin on a depositing tool. The texturing step of the resin on the active surface is simultaneous with the depositing of the resin on the active surface.