Abstract: A computer-implemented method for the machine learning of a model for classifying batteries into two categories: functional or defective, the method comprising the following steps: acquiring, on a set of batteries of the same type, a group of measurements characteristic of the operation of a battery, carrying out complete cycling of each battery of the set and measuring at least one curve from among a charge curve or a discharge curve of the battery, determining, for each battery, a label of belonging to the functional or defective category by comparing at least one measured curve with a reference curve characterizing the correct operation of the battery, and carrying out supervised training of a model for classifying a battery according to the two categories based on the groups of measurements and on the label of belonging to one of the two categories.

Abstract: An electrode, in particular for micro-batteries, produced in a plurality of layers with intermediate steps of masking a first layer leaving some parts of the latter exposed in order next to produce a removal of material eliminating defects. After removal of the masking layer, the second layer can be formed. Other layers can then follow in the same way.

Abstract: An assembly able to deliver an output current, includes N electrical energy storage or production cells of rank i, where N?2, being able to supply a maximum current Imax,i at all times t; a management circuit for managing the electrical energy storage or production cells, wherein, with the cells being classed according to their rank i in decreasing priority of use, the management circuit comprises means for addressing at least the cell of rank 1 or the cells according to their rank i and according to the following criteria: the cell of rank 1 is addressed on its own as long as it is able to supply the output current Is<Imax1; the cell of rank 1 is addressed with additionally a number k of cells that are addressed successively according to their rank i, so as to supply the current Is at all times in discharge mode, the number k being such that 2<k?N and meeting the following conditions: ?i=1k?1Imax,i<Is and ?i=1kImax,i?Is

Abstract: An electrode, in particular for micro-batteries, produced in a plurality of layers with intermediate steps of masking a first layer leaving some parts of the latter exposed in order next to produce a removal of material eliminating defects. After removal of the masking layer, the second layer can be formed. Other layers can then follow in the same way.

Abstract: A solid electrolyte including a layer of LixPOy, free from nitrogen, with 3.6?x?6.3 and 1.5?y?4, and the ionic conductivity of which is greater than or equal to 10?5 S/cm. A microbattery including a layer of solid electrolyte.

Abstract: A thin layer lithium-ion type battery comprising, on a substrate (20, 30), a cathode current collector layer (22, 36) and an active portion constituted by a stack of a cathode layer (23, 35) made of material suitable for inserting lithium ions, an electrolyte layer (24, 34), and an anode layer (25, 33), wherein the cathode layer presents, across its thickness, porosity that varies between its interface with the cathode current collector layer and its interface with the electrolyte layer, the variation in the porosity being non-zero so as to improve cohesion at both interfaces.

Abstract: A thin layer lithium-ion type battery comprising, on a substrate (20, 30), a cathode current collector layer (22, 36) and an active portion constituted by a stack of a cathode layer (23, 35) made of material suitable for inserting lithium ions, an electrolyte layer (24, 34), and an anode layer (25, 33), wherein the cathode layer presents, across its thickness, porosity that varies between its interface with the cathode current collector layer and its interface with the electrolyte layer, the variation in the porosity being non-zero so as to improve cohesion at both interfaces.

Abstract: A solid electrolyte including a layer of LixPOy, free from nitrogen, with 3.6?x?6.3 and 1.5?y?4, and the ionic conductivity of which is greater than or equal to 10?5 S/cm. A microbattery including a layer of solid electrolyte.

Abstract: A process for fabricating a silicon-based thin-film photovoltaic cell, applicable for example in the energy generation field. The fabrication process includes a) depositing a p-doped or n-doped amorphous silicon film, the X-ray diffraction spectrum of which has a line centered at 28° that has a mid-height width, denoted by a, such that 4.7°?a<6.0°, on a substrate.

Abstract: A process for fabricating a silicon-based thin-film photovoltaic cell, applicable for example in the energy generation field. The fabrication process includes a) depositing a p-doped or n-doped amorphous silicon film, the X-ray diffraction spectrum of which has a line centered at 28° that has a mid-height width, denoted by a, such that 4.7°?a<6.0°, on a substrate.