Patents by Inventor Sami Oukassi
Sami Oukassi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220158196Abstract: An electrochemical device including, stacked successively on a face of a substrate, at least: a first current collector including at least one metal layer, a first electrode, an electrolyte, a second electrode. The first current collector includes a first portion covered by the first electrode and a second portion protruding laterally beyond the first electrode, and the electrolyte includes a surface covered by the second electrode. The second portion of the first collector extends under the electrolyte in a region of the electrolyte located outside the surface covered by the second electrode.Type: ApplicationFiled: November 11, 2021Publication date: May 19, 2022Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Arnaud BAZIN, Françoise GEFFRAYE, Sami OUKASSI, Séverine PONCET
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Publication number: 20220003821Abstract: A method for testing at least one energy micro-storage device includes an anode made of metallic lithium formed by electrodeposition of ions on a metal inert to lithium ions, the method comprising a succession of steps during the manufacture of said anode: a step of measuring the initial voltage OCV of the energy micro-storage device; a first charging step, comprising applying a current, measuring the voltage and the internal resistance of the device in order to verify the compliance of the measurements on a very low lithium layer thickness formed at the anode; a second charging stabilization step, comprising applying a current and measuring the voltage of the device in order to verify the compliance of the measurements on a low lithium layer thickness formed at the anode; a retention step with a zero current applied and measuring the voltage in order to confirm the compliance of the energy micro-storage device. A system for implementing the method is also provided.Type: ApplicationFiled: June 27, 2021Publication date: January 6, 2022Inventors: Alain TOFFOLI, Sami OUKASSI
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Patent number: 11217823Abstract: The method for fabricating an electrochemical device includes the following successive steps: a first stack successively including a first electrode and an electrically insulating electrolyte having a first main surface in contact with the first electrode and an opposite second main surface; a polymerisation step of the electrolyte so as to define at least a first area presenting a first degree of cross-linking and a first cross-linking density and a second area presenting a second degree of cross-linking different from the first degree of cross-linking and/or a second cross-linking density different from the first cross-linking density, said at least first and second areas connecting the first main surface with the second main surface; and placing the second electrode in contact with the electrolyte.Type: GrantFiled: September 18, 2017Date of Patent: January 4, 2022Assignee: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Arnaud Bazin, Sami Oukassi
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Publication number: 20210328440Abstract: 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?IsType: ApplicationFiled: April 12, 2021Publication date: October 21, 2021Inventors: Christophe SECOUARD, Ghislain DESPESSE, Sami OUKASSI
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Publication number: 20210184300Abstract: An energy storage device, includes a substrate having a portion that is optically transparent in a predefined range of wavelengths, and at least one electrochemical energy storage system comprising, as from a face of the transparent portion, a stack having successively a first current collector, a first electrode, an electrolyte, a second electrode and a second current collector, the stack being covered partially by a cover characterised in that wherein at least one part of the cover has a coefficient of light absorbance greater than or equal to 80%, and preferably greater than 90%.Type: ApplicationFiled: October 23, 2018Publication date: June 17, 2021Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Sami OUKASSI, Christophe DUBARRY, Severine PONCET
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Publication number: 20210166758Abstract: A memory comprising: a resistive-switching element having first and second electrodes separated by a layer of insulator; an energy storage component or load coupled to the resistive-switching element via a first switch; and a control circuit configured: to program the resistive-switching element to have a set state, wherein, in the set state, a filament forms a conducting path between the first and second electrodes; and, following a dissolution of the filament, to recover electrical energy, generated by the dissolution of the filament, from one of the first and second electrodes by activating the first switch.Type: ApplicationFiled: December 1, 2020Publication date: June 3, 2021Applicant: Commissariat à I'Énergie Atomique et aux Énergies AlternativesInventors: Paola Trotti, Gabriel Molas, Sami Oukassi, Gaël Pillonnet
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Patent number: 11005277Abstract: The invention relates to an energy storage device including at least one block having n energy storage units, where n?2; a charge and discharge management circuit electrically linked to the n storage units and making it possible to alternately connect all of the energy storage units of one and the same block to one another; and the block having a defined block voltage between the low potential of the first energy storage unit and the high potential of the nth energy storage unit. The charge and discharge management circuit includes: first means for triggering the toggling from a parallel mode to a series mode and second means for triggering the toggling from the series mode to the parallel mode.Type: GrantFiled: January 11, 2018Date of Patent: May 11, 2021Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Sami Oukassi, Nicolas Dunoyer, Ghislain Despesse
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Patent number: 10991922Abstract: The present invention relates to a method for producing a microelectronic device successively comprising: a formation of a first current collector on a face of a substrate; a formation of a first electrode (14) on, and in electrical continuity with, a portion of the first current collector; a heat treatment configured to treat the first electrode (14) characterised by the fact that: the formation of the first collector comprises a formation of a first collector layer (12) on the face of the substrate and a formation of a second collector layer (13) covering at least one part, called covered part, of the first collector layer (12) and having a first face in contact with the first electrode (14), the second collector layer (13) is configured to protect the covered part during the heat treatment, such that the heat treatment does not oxidise said covered part.Type: GrantFiled: December 20, 2018Date of Patent: April 27, 2021Assignee: Commissariat A L'Energie Atomique et aux Energies AlternativesInventors: Christophe Dubarry, Francoise Geffraye, Sami Oukassi
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Publication number: 20210074477Abstract: An integrated energy storage component that includes a substrate supporting a contoured layer having a region with a contoured surface such as elongated pores. A stack structure is provided conformally over the contoured surface of this region. The stack is a single or repeated instance of MOIM layers, or MIOM layers, the M layers being metal layers, or a quasi-metal such as TiN, the O layers being oxide layers containing ions, and the I layer being an ionic dielectric. The regions having a contoured surface may be formed of porous anodized alumina.Type: ApplicationFiled: November 18, 2020Publication date: March 11, 2021Inventors: Sami Oukassi, Raphaël Salot, Frédéric Voiron, Valentin Sallaz
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Patent number: 10910667Abstract: This invention relates to a microelectronic device comprising: a first support, a second support, first respective faces of the first support and second support being arranged opposite, and a sealing layer between said first faces, characterized in that the sealing layer comprises at least one layer of an ionic conductive material of formula LixPyOzNw, with x strictly greater than 0 and less than or equal to 4.5, y strictly greater than 0 and less than or equal to 1, z strictly greater than 0 and less than or equal to 5.5, w greater than or equal to 0 and less than or equal to 1.Type: GrantFiled: November 5, 2018Date of Patent: February 2, 2021Assignee: Commissariat A L'Energie Atomique et aux Energies AlternativesInventors: Sami Oukassi, Xavier Baillin
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Patent number: 10878900Abstract: A solution for using elementary electrochemical components, manufactured from the same arrangement of materials and incorporated in a single electronic circuit, for information storage or for energy storage, is presented. Electrochemical components incorporating a first electrode, a second electrode and an active area between the two, can, by the application of different voltages for switching from a highly resistive state to a weakly resistive state or for switching from a state having one given electromotive force to a state having another electromotive force, be used respectively as a memory or as a battery.Type: GrantFiled: December 22, 2017Date of Patent: December 29, 2020Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Daeseok Lee, Gabriel Molas, Sami Oukassi
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Publication number: 20200350569Abstract: 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.Type: ApplicationFiled: April 30, 2020Publication date: November 5, 2020Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Arnaud BAZIN, Sami OUKASSI, Severine PONCET, Christophe SECOUARD
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Patent number: 10748917Abstract: A semiconductor component includes a first electrode, designated flat electrode, defining a plane; a second electrode, designated active electrode, separated from the first electrode by an electrolyte layer; a pillar, designated vertical pillar, extending essentially along an axis perpendicular to the plane defined by the flat electrode, the pillar including a third electrode, designated vertical electrode and an information storage layer, the information storage layer covering a surface of the vertical electrode; the flat electrode and the vertical pillar being laid out so as to form a memory point. In addition, the materials of the active electrode and the electrolyte layer are chosen so as to form an energy storage zone with the flat electrode.Type: GrantFiled: May 3, 2018Date of Patent: August 18, 2020Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Daeseok Lee, Gabriel Molas, Sami Oukassi
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Publication number: 20200212686Abstract: An energy storage device includes at least one block, the block being connected to an input voltage Vin and delivering a voltage Vout greater than Vin and including: n energy storage units, where n?2; a charge and discharge management circuit electrically linked to the n storage units and making it possible to alternately connect all of the energy storage units of one and the same block to one another, in parallel mode or in series mode; the energy storage units respectively having an end of charge voltage Vend of charge and an end of discharge voltage Vend of discharge; the block having a defined block voltage VBlock between the low potential of the first energy storage unit and the high potential of the nth energy storage unit, wherein the charge and discharge management circuit includes: first means for triggering the toggling from the parallel mode to the series mode, through the exceedance of a first threshold voltage (Vthreshold1) in one of the energy storage units, the first threshold voltage corresponType: ApplicationFiled: January 11, 2018Publication date: July 2, 2020Inventors: Sami OUKASSI, Nicolas DUNOYER, Ghislaine DESPESSE
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Patent number: 10658584Abstract: An electrochemically actuatable electronic component comprises: a substrate; at least one first and one second actuating electrodes; at least one first and one second measuring electrodes; at least one storing electrode configured to free ions under the action of the actuating electrodes; at least one ionic conductor able to conduct the ions and that is located in a region placed between the measuring electrodes; a device suitable for: applying a voltage or a current between the first and second actuating electrodes to allow the migration of ions from the storing electrode to the first actuating electrode forming thereon an electrochemical deposition through the ionic conductor and for measuring, between the first and second measuring electrodes, a modification of at least one characteristic of the region placed between the first and second measuring electrodes, to determine at least one characteristic of the electronic component.Type: GrantFiled: November 10, 2016Date of Patent: May 19, 2020Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Sami Oukassi, Raphaël Salot
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Patent number: 10483485Abstract: An encapsulation device comprises at least one assembly containing particles comprising at least a first material. The assembly has an open porosity. The particles: are distributed over a geometric structure that has a degree of compactness of said particles of greater than around 50% and preferably of greater than 60%, and are covered conformally by at least one layer referred to as an infiltration layer; the thickness of at least the infiltration layer closing off the porosity of the assembly comprising the particles covered by at least the layer, in the form of pores that are not connected to one another. A process for producing the encapsulation device is also provided.Type: GrantFiled: October 28, 2014Date of Patent: November 19, 2019Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventor: Sami Oukassi
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Publication number: 20190341105Abstract: A solution for using elementary electrochemical components, manufactured from the same arrangement of materials and incorporated in a single electronic circuit, for information storage or for energy storage, is presented. Electrochemical components incorporating a first electrode, a second electrode and an active area between the two, can, by the application of different voltages for switching from a highly resistive state to a weakly resistive state or for switching from a state having one given electromotive force to a state having another electromotive force, be used respectively as a memory or as a battery.Type: ApplicationFiled: December 22, 2017Publication date: November 7, 2019Inventors: Daeseok LEE, Gabriel MOLAS, Sami OUKASSI
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Publication number: 20190214609Abstract: The present invention relates to a method for producing a microelectronic device successively comprising: a formation of a first current collector on a face of a substrate; a formation of a first electrode (14) on, and in electrical continuity with, a portion of the first current collector; a heat treatment configured to treat the first electrode (14) characterised by the fact that: the formation of the first collector comprises a formation of a first collector layer (12) on the face of the substrate and a formation of a second collector layer (13) covering at least one part, called covered part, of the first collector layer (12) and having a first face in contact with the first electrode (14), the second collector layer (13) is configured to protect the covered part during the heat treatment, such that the heat treatment does not oxidise said covered part.Type: ApplicationFiled: December 20, 2018Publication date: July 11, 2019Applicant: Commissariat A L'Energie Atomique et aux Energies AlternativesInventors: Christophe DUBARRY, Francoise GEFFRAYE, Sami OUKASSI
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Publication number: 20190214679Abstract: The method for fabricating an electrochemical device includes the following successive steps: a first stack successively including a first electrode and an electrically insulating electrolyte having a first main surface in contact with the first electrode and an opposite second main surface; a polymerisation step of the electrolyte so as to define at least a first area presenting a first degree of cross-linking and a first cross-linking density and a second area presenting a second degree of cross-linking different from the first degree of cross-linking and/or a second cross-linking density different from the first cross-linking density, said at least first and second areas connecting the first main surface with the second main surface; and placing the second electrode in contact with the electrolyte.Type: ApplicationFiled: September 18, 2017Publication date: July 11, 2019Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Arnaud BAZIN, Sami OUKASSI
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Publication number: 20190074540Abstract: This invention relates to a microelectronic device comprising: a first support, a second support, first respective faces of the first support and second support being arranged opposite, and a sealing layer between said first faces, characterized in that the sealing layer comprises at least one layer of an ionic conductive material of formula LixPyOzNw, with x strictly greater than 0 and less than or equal to 4.5, y strictly greater than 0 and less than or equal to 1, z strictly greater than 0 and less than or equal to 5.5, w greater than or equal to 0 and less than or equal to 1.Type: ApplicationFiled: November 5, 2018Publication date: March 7, 2019Applicant: Commissariat A L'Energie Atomique et aux Energies AlternativesInventors: Sami OUKASSI, Xavier BAILLIN