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Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 51. Отображено 51.
24-11-2011 дата публикации

METHOD FOR PREPARING AN ELECTROCHEMICAL CELL HAVING A GEL ELECTROLYTE

Номер: US20110287325A1
Автор: Karim Zaghib, Manabu Kikuta, Martin Dontigny, Abdelbas Guerfi, Michiyuki Kono, ZAGHIB KARIM, KIKUTA MANABU, DONTIGNY MARTIN, GUERFI ABDELBAS, KONO MICHIYUKI
Принадлежит: Dai-ichi Kogyo Seiyaku Co., HYDRO-QUEBEC

The invention relates to a method for manufacturing an electrochemical cell comprising an anode and a cathode separated by a separator and a gel electrolyte. The method comprises the steps of assembling the electrodes and the separator, and injecting a liquid electrolyte composition between the electrodes, the liquid electrolyte composition comprising a polymer, an aprotic liquid solvent and a lithium salt, wherein the polymer in the liquid electrolyte composition has functional groups capable of polymerizing via cationic polymerization, and the cell is submitted to an electrochemical cycling comprising a charging step and a discharging step.

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Номер записи: 1
03-09-2019 дата публикации

Positive electrode material for lithium secondary battery

Номер: US0010403893B2
Автор: Takehiko Sawai, Shinji Saito, Kazunori Urao, Kazuma Hanai, Karim Zaghib, Abdelbast Guerfi, Martin Dontigny, SAWAI TAKEHIKO, SAITO SHINJI, URAO KAZUNORI, HANAI KAZUMA, ZAGHIB KARIM, GUERFI ABDELBAST, DONTIGNY MARTIN, Sawai, Takehiko, Saito, Shinji, Urao, Kazunori, Hanai, Kazuma, Zaghib, Karim, Guerfi, Abdelbast, Dontigny, Martin
Принадлежит: HYDRO-QUEBEC, SEI CORPORATION, HYDRO QUEBEC, SEI CORP, SEI CORP.

A positive electrode material is used to produce a positive electrode of a lithium secondary battery, the positive electrode material being a composite lithium material that includes a first lithium compound and a second lithium compound. For instance, the first lithium compound is in the form of particles and comprises at least one compound selected from a layered lithium compound and a spinel-type lithium compound. Preferably, the second lithium compound comprises at least one compound selected from a lithium-containing phosphate compound and a lithium-containing silicate compound. An amorphous carbon material layer and/or graphene-structured carbon material layer is present on the entire surface of the first lithium compound and the second lithium compound. The second lithium compound forms a thin-film layer on part or the entirety of the carbon material layer present on the surface of the first lithium compound particles.

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Номер записи: 2
09-09-2014 дата публикации

Method for preparing an electrochemical cell having a gel electrolyte

Номер: US0008828609B2
Автор: Karim Zaghib, Manabu Kikuta, Martin Dontigny, Abdelbast Guerfi, Michiyuki Kono
Принадлежит: Hydro-Quebec, Dai-Ichi Kogyo Seiyaku Co., Ltd.

The invention relates to a method for manufacturing an electrochemical cell comprising an anode and a cathode separated by a separator and a gel electrolyte. The method comprises the steps of assembling the electrodes and the separator, and injecting a liquid electrolyte composition between the electrodes, the liquid electrolyte composition comprising a polymer, an aprotic liquid solvent and a lithium salt, wherein the polymer in the liquid electrolyte composition has functional groups capable of polymerizing via cationic polymerization, and the cell is submitted to an electrochemical cycling comprising a charging step and a discharging step.

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Номер записи: 3
23-03-2021 дата публикации

Aprotic polymer-molten salt-solvent ternary composition, method for the preparation and use thereof in electrochemical systems

Номер: US0010954351B2
Автор: Karim Zaghib, Patrick Charest, Abdelbast Guerfi, Martin Dontigny, Michel Peticlerc, ZAGHIB KARIM, CHAREST PATRICK, GUERFI ABDELBAST, DONTIGNY MARTIN, PETICLERC MICHEL, Zaghib, Karim, Charest, Patrick, Guerfi, Abdelbast, Dontigny, Martin, Peticlerc, Michel
Принадлежит: HYDRO-QUÉBEC, HYDRO QUEBEC

An aprotic polymer/molten salt ternary mixture solvent and to a corresponding quaternary mixture additionally including an ionic conducting salt, which are prepared by mixing the constituents of the mixture. These mixtures are advantageously used in the preparation of electrochemical membranes, electrochemical systems and of electrochromic systems. Also, electrochemical and electrochromic systems obtained hereby that exhibit, in particular, excellent electrochemical properties at low temperatures.

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Номер записи: 4
30-05-2023 дата публикации

Method for the purification of raw carbon nanotubes

Номер: US0011661344B2
Автор: Ali Darwiche, Martin Dontigny, Naoyuki Kondo, Abdelbast Guerfi, Karim Zaghib, Julien Beausoleil, Alexander Korzhenko
Принадлежит: HYDRO-QUEBEC, ARKEMA FRANCE, HYDRO-QUÉBEC, Arkema France

The present invention proposes a process for purifying raw carbon nanotubes to obtain an content in metallic impurities comprised between 5 ppm and 200 ppm. The process includes an increase in the bulk density of the raw carbon nanotubes via compacting to produce compacted carbon nanotubes. The process further includes sintering the compacted carbon nanotubes by undergoing thermal treatment under gaseous atmosphere in order to remove at least a portion of the metallic impurities contained in the raw carbon nanotubes, and consequently producing purified carbon nanotubes. These purified carbon nanotubes are directly usable as electronic conductors serving as basis additive to an electrode material without requiring any subsequent purification step. The electrode material can then be used to manufacture an electrode destined to a lithium-ion battery.

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Номер записи: 5
20-09-2012 дата публикации

MATERIAL CONSISTING OF COMPOSITE OXIDE PARTICLES, METHOD FOR PREPARING SAME, AND USE THEREOF AS ELECTRODE ACTIVE MATERIAL

Номер: US20120237833A1
Автор: Abdelbast Guerfi, Jean-François Labrecque, Martin Dontigny, Patrick Charest, Karim Zaghib, GUERFI ABDELBAST, LABRECQUE JEAN-FRANCOIS, DONTIGNY MARTIN, CHAREST PATRICK, ZAGHIB KARIM
Принадлежит:

A positive electrode material, having particles having a complex oxide OC1 core, an at least partial complex oxide OC2 coating, and an adhesive carbon surface deposit. The material is characterized in that the complex oxide OC1 is an oxide having a high energy density and in that the oxide OC2 is an oxide of a metal having a catalytic effect on the reaction of the carbon deposit, the oxide having good electronic conductivity. The presence of the OC2 layer facilitates the deposit of a carbon adhesive layer at the surface of the oxide particles, and improves the conductivity of the material when the latter is used as an electrode material. The electrode material can particularly be used in the manufacture of a lithium battery. 1. A positive electrode material composed of particles having a core of a complex oxide CO1 , an at least partial coating of a complex oxide CO2 and an adherent surface deposit of carbon , said material being wherein:the complex oxide CO1 has a potential of greater than 2.5 V and is chosen from the oxides of an alkali metal and of at least one element chosen from Mn, Co, Ge, Au, Ag and Cu, andthe oxide CO2 is an oxide of an alkali metal and of at least one metal which has a catalytic effect on the reaction for the deposition of carbon and which is chosen from Fe, Mo, Ni, Pt and Pd.2. The material as claimed in claim 1 , wherein the alkali metal A is chosen from Li claim 1 , Na and K.3. The material as claimed in claim 2 , wherein the alkali metal is the same in CO1 and in CO2.4. The material as claimed in claim 1 , wherein the oxide CO1 is an oxide AMMXOin which Mrepresents at least one element chosen from Mn claim 1 , Co claim 1 , Cu and Ge claim 1 , Mrepresents a transition metal other than Mn and Co claim 1 , 0≦a≦0.5 claim 1 , 0≦z≦2 and X represents an element chosen from P claim 1 , Si claim 1 , V and Ti.5. The material as claimed in claim 4 , wherein the oxide CO1 is LiMnPOin which Mn can be partially replaced by Co and/or Ni.6. The ...

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Номер записи: 6
18-12-2012 дата публикации

Co-crushed mixture of an active material and of a conductive material, preparation methods and uses thereof

Номер: US0008333911B2
Автор: Karim Zaghib, Michel Petitclerc, Patrick Charest, Abdelbast Guerfi, Martin Dontigny, ZAGHIB KARIM, PETITCLERC MICHEL, CHAREST PATRICK, GUERFI ABDELBAST, DONTIGNY MARTIN
Принадлежит: Hydro-Quebec, ZAGHIB KARIM, PETITCLERC MICHEL, CHAREST PATRICK, GUERFI ABDELBAST, DONTIGNY MARTIN, HYDRO QUEBEC, HYDRO-QUEBEC

A mixture of particles having a carrier based on at least one active material M1 of average size T1 and of specific surface S1 on which are bonded, via physical and/or chemical bonds, particles of at least an electronically conductive material M2 of average size T2 and of specific surface S2. The mixture is characterized in that: the average size ratio T1/T2 ranges between 5 and 10000; the specific surface ratio S1/S2 ranges between 1/300 and 1/2; and the amount of active material present in the mixture preferably represents more than 80% of the amount of the conductive material. The incorporation of said mixtures into elements constituting electrochemical systems substantially improves the performances of the latter.

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Номер записи: 7
02-02-2016 дата публикации

Flexible transparent electrochomic device, and a method for the preparation thereof

Номер: US0009249353B2
Автор: Uwe Posset, Bettina Herbig, Gerhard Schottner, Karim Zaghib, Jean-François Labrecque, Abdelbast Guerfi, Michel Perrier, Riccardo Ruffo, Matteo Marco Salamone, Claudio Maria Mari, Luca Beverina, Giorgio Pagani, Martin Dontigny, POSSET UWE, HERBIG BETTINA, SCHOTTNER GERHARD, ZAGHIB KARIM, LABRECQUE JEAN-FRANÇOIS, GUERFI ABDELBAST, PERRIER MICHEL, RUFFO RICCARDO, SALAMONE MATTEO MARCO, MARI CLAUDIO MARIA, BEVERINA LUCA, PAGANI GIORGIO, DONTIGNY MARTIN
Принадлежит: HYDRO-QUEBEC, FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V., CONSORZIO INTERUNIVERSITARIO NAZIONALE PER LA SCIENZA E TECNOLOGIA DEI MATERIALI INSTM, UNIVERSITA DEGLI STUDI DI MILANO-BICOCCA, HYDRO QUEBEC, FRAUNHOFER GES FORSCHUNG, CONSORZIO INTERUNIVERSITARIO NAZ PER LA SCIENZA E TECNOLOGIA DEI MATERIALI INSTM, UNIV MILANO BICOCCA

A flexible transparent electrochromic device, which includes the following components, each of which is a flexible film: a working electrode comprising a transparent conducting substrate supporting an working electrode active material; a counter electrode including a transparent conducting substrate supporting a counter electrode active material; a solid polymer electrolyte (SPE) including a solution of a lithium salt in a polymer solvent. A method for preparing an electrochromic device includes the steps of: preparing a working electrode film, preparing a counter electrode film, preparing a polymer electrolyte film, and assembling the electrodes and the electrolyte, the method being implemented continuously.

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Номер записи: 8
29-06-2021 дата публикации

Coated metal oxide particles with low dissolution rate, methods for preparing same and use thereof in electrochemical systems

Номер: US0011050059B2
Автор: Patrick Charest, Michel Perrier, Martin Dontigny, Michel Petitclerc, Abdelbast Guerfi, Karim Zaghib, CHAREST PATRICK, PERRIER MICHEL, DONTIGNY MARTIN, PETITCLERC MICHEL, GUERFI ABDELBAST, ZAGHIB KARIM, Charest, Patrick, Perrier, Michel, Dontigny, Martin, Petitclerc, Michel, Guerfi, Abdelbast, Zaghib, Karim
Принадлежит: HYDRO-QUÉBEC, HYDRO QUEBEC, HYDRO-QUEBEC

Particles including a core and a coat covering at least part of the core surface. The core has more than 50% of an acidic metal oxide and the core coating is based on a polymer, preferably based on a solid polymer with high electrochemical stability. The particle has a solubility rate (ds), in fixed time, of the metal oxide migrating towards the electrolyte, per cycle, which is less than 5 per 10000. The particles are obtained by mixing the polymer and a metal oxide, via dry process with addition of solvent. The electrodes constituting an electrode substrate at least partly coated with a mixture consisting of at least 40 of those particles have remarkable electrochemical properties, in particular regarding the lifetime of batteries in which they are incorporated.

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Номер записи: 9
19-05-2015 дата публикации

Multilayer material, method for making same and use as electrode

Номер: US0009034490B2
Автор: Karim Zaghib, Michel Petitclerc, Patrick Charest, Abdelbast Guerfi, Martin Dontigny, ZAGHIB KARIM, PETITCLERC MICHEL, CHAREST PATRICK, GUERFI ABDELBAST, DONTIGNY MARTIN
Принадлежит: Hydro-Quebec, HYDRO QUEBEC, HYDRO-QUEBEC

A multilayer material including a solid substrate and at least two superimposed solid layers containing particles of an electrochemically active material, the first solid layer adhering to the solid substrate and the second solid layer adhering to the first solid layer. The multilayer material has a constant thickness of upper layer not less than 95% and a depth of penetration of the second layer into the first layer which is less than 10% of the thickness of the first layer, and enables as electrode constituent, generators having a low risk of overload degradation to be prepared.

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Номер записи: 10
17-05-2022 дата публикации

Multilayer material based on active lithium, method of preparation and applications in electrochemical generators

Номер: US0011335894B2
Автор: Karim Zaghib, Martin Dontigny, Michel Petitclerc, Michel Gauthier
Принадлежит: HYDRO-QUEBEC

A method for preparing a multilayer material based on active lithium, by depositing a film of active lithium on a protective layer at a sufficient speed so that substantially no oxidation of the lithium occurs, and/or during a sufficient time for the adhesion of the lithium to develop after contact with the protective layer. The multilayer material, when incorporated in an electrochemical battery as an anode, has excellent impedance stability and no formation of dendrites during the cycling. Batteries where the anode is the multilayer material are particularly efficient in terms of their coulombic efficiency.

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Номер записи: 11
10-12-2009 дата публикации

MULTILAYER MATERIAL, METHOD FOR MAKING SAME AND USE AS ELECTRODE

Номер: US20090301866A1
Автор: Karim Zaghib, Michel Petitclerc, Patrick Charest, Abdelbast Guerfi, Martin Dontigny
Принадлежит: Hydro-Quebec

A multilayer material includes a solid substrate and at least two superimposed solid layers containing particles of an electrochemically active material, the first solid layer adhering to the solid substrate and the second solid layer adhering to the first solid layer. The multilayer material has a constant thickness of upper layer not less than 95% and a depth of penetration of the second layer into the first layer which is less than 10% of the thickness of the first layer, and enables as electrode constituent, generators having a low risk of overload degradation to be prepared.

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Номер записи: 12
30-08-2016 дата публикации

Material consisting of composite oxide particles, method for preparing same, and use thereof as electrode active material

Номер: US0009431675B2
Автор: Abdelbast Guerfi, Jean-François Labrecque, Martin Dontigny, Patrick Charest, Karim Zaghib, GUERFI ABDELBAST, LABRECQUE JEAN-FRANÇOIS, DONTIGNY MARTIN, CHAREST PATRICK, ZAGHIB KARIM, Guerfi Abdelbast, Labrecque Jean-François, Dontigny Martin, Charest Patrick, Zaghib Karim
Принадлежит: HYDRO-QUEBEC, GUERFI ABDELBAST, LABRECQUE JEAN-FRANÇOIS, DONTIGNY MARTIN, CHAREST PATRICK, ZAGHIB KARIM, Guerfi Abdelbast, Labrecque Jean-François, Dontigny Martin, Charest Patrick, Zaghib Karim

A positive electrode material, having particles having a complex oxide OC1 core, an at least partial complex oxide OC2 coating, and an adhesive carbon surface deposit. The material is characterized in that the complex oxide OC1 is an oxide having a high energy density and in that the oxide OC2 is an oxide of a metal having a catalytic effect on the reaction of the carbon deposit, the oxide having good electronic conductivity. The presence of the OC2 layer facilitates the deposit of a carbon adhesive layer at the surface of the oxide particles, and improves the conductivity of the material when the latter is used as an electrode material. The electrode material can particularly be used in the manufacture of a lithium battery.

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Номер записи: 13
14-05-2009 дата публикации

Electrolyte purification method, electrolytes and generators thus obtained and use of same

Номер: US20090123845A1
Автор: Karim Zaghib, Jocelyn Jalbert, Abdelbast Guerfi, Christophe Michot, Michel Gauthier, Martin Dontigny, Patrick Charest
Принадлежит: Hydro-Quebec

Process for the purification of an ionic electrolyte comprising at least one alkali metal salt, the process having at least one stage in which particles of at least one calcium salt are brought into contact. The process makes it possible to obtain electrolytes characterized in particular by a particularly low water content. The corresponding electrochemical generators which incorporate the electrolyte as constituent component are characterized by a noteworthy stability and are particularly safe.

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Номер записи: 14
14-08-2014 дата публикации

FLEXIBLE TRANSPARENT ELECTROCHOMIC DEVICE, AND A METHOD FOR THE PREPARATION THEREOF

Номер: US20140226201A1
Автор: Uwe Posset, Bettina Herbig, Gerhard Schottner, Karim Zaghib, Jean-François Labreque, Abdelbast Guerfi, Michel Perrier, Riccardo Ruffo, Matteo Marco Salamone, Claudio Maria Mari, Luca Beverina, Giorgio Pagani, Martin Dontigny, POSSET UWE, HERBIG BETTINA, SCHOTTNER GERHARD, ZAGHIB KARIM, LABREQUE JEAN-FRANÇOIS, GUERFI ABDELBAST, PERRIER MICHEL, RUFFO RICCARDO, SALAMONE MATTEO MARCO, MARI CLAUDIO MARIA, BEVERINA LUCA, PAGANI GIORGIO, DONTIGNY MARTIN
Принадлежит: Hydro-Quebec, Fraunhofer Gesellschaft zur Foerdrung der Angewandten Forshung E.V., Consorzio Interuniversitario Nazionale Per La Scienza E Tecnologica Dei Materiali Instm, Universita Degli Studi Milano-Bicocca

A flexible transparent electrochromic device, which includes the following components, each of which is a flexible film: a working electrode comprising a transparent conducting substrate supporting an working electrode active material; a counter electrode including a transparent conducting substrate supporting a counter electrode active material; a solid polymer electrolyte (SPE) including a solution of a lithium salt in a polymer solvent. A method for preparing an electrochromic device includes the steps of: preparing a working electrode film, preparing a counter electrode film, preparing a polymer electrolyte film, and assembling the electrodes and the electrolyte, the method being implemented continuously. 2. The electrochromic device of claim 1 , wherein the solid polymer electrolyte is a transparent flexible film having a thickness of 1 to 100 μm claim 1 , made of an electrolyte material that comprises a crosslinked polymer and a lithium salt.3. The electrochromic device of claim 2 , wherein the electrolyte material further comprises an ionic liquid claim 2 , a plastifying agent claim 2 , or both.4. The electrochromic device of claim 2 , wherein the crosslinked polymer is a polymer having polyether segments linked by covalent bonding linking groups.5. The electrochromic device of claim 4 , wherein the polyether segments comprise repeat units —O—CHCHR— wherein Ris H or a side group selected from CHand CHCHand the covalent bonding linking groups are n-butylene groups claim 4 , multibranched ether groups or butylene diester groups.6. The electrochromic device of claim 1 , wherein the thickness of each of the working electrode conductive substrate and the counter electrode conductive substrate is from 75 μm to 175 μm.7. The electrochromic device of claim 1 , wherein each of the working electrode conductive substrate and the counter electrode conductive substrate is made of a flexible transparent film selected from the group consisting of a transparent conducting ...

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Номер записи: 15
02-04-2009 дата публикации

CO-CRUSHED MIXTURE OF AN ACTIVE MATERIAL AND OF A CONDUCTIVE MATERIAL, PREPARATION METHODS AND USES THEREOF

Номер: US20090087709A1
Автор: Karim Zaghib, Michel Petitclerc, Patrick Charest, Abdelbast Guerfi, Martin Dontigny
Принадлежит: Hydro-Quebec

A mixture of particles having a carrier based on at least one active material M1 of average size T1 and of specific surface S1 on which are bonded, via physical and/or chemical bonds, particles of at least an electronically conductive material M2 of average size T2 and of specific surface S2. The mixture is characterized in that: the average size ratio T1/T2 ranges between 5 and 10000; the specific surface ratio S1/S2 ranges between 1/300 and 1/2; and the amount of active material present in the mixture preferably represents more than 80% of the amount of the conductive material. The incorporation of said mixtures into elements constituting electrochemical systems substantially improves the performances of the latter.

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Номер записи: 16
20-10-2020 дата публикации

Electrolyte purification method using calcium carbide, and electrolytes thus obtained

Номер: US0010811731B2
Автор: Karim Zaghib, Jocelyn Jalbert, Abdelbast Guerfi, Christophe Michot, Michel Gauthier, Martin Dontigny, Patrick Charest, ZAGHIB KARIM, JALBERT JOCELYN, GUERFI ABDELBAST, MICHOT CHRISTOPHE, GAUTHIER MICHEL, DONTIGNY MARTIN, CHAREST PATRICK, Zaghib, Karim, Jalbert, Jocelyn, Guerfi, Abdelbast, Michot, Christophe, Gauthier, Michel, Dontigny, Martin, Charest, Patrick
Принадлежит: HYDRO-QUEBEC, HYDRO QUEBEC

Process for the purification of an ionic electrolyte including at least one alkali metal salt, the process having at least one stage in which particles of at least one calcium salt are brought into contact. The process makes it possible to obtain electrolytes characterized in particular by particularly low water content. The corresponding electrochemical generators which incorporate the electrolyte as constituent component are characterized by a noteworthy stability and are particularly safe.

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Номер записи: 17
07-05-2013 дата публикации

Multilayer material, method for making same and use as electrode

Номер: US0008435671B2
Автор: Karim Zaghib, Michel Petitclerc, Patrick Charest, Abdelbast Guerfi, Martin Dontigny, ZAGHIB KARIM, PETITCLERC MICHEL, CHAREST PATRICK, GUERFI ABDELBAST, DONTIGNY MARTIN
Принадлежит: Hydro-Quebec, ZAGHIB KARIM, PETITCLERC MICHEL, CHAREST PATRICK, GUERFI ABDELBAST, DONTIGNY MARTIN, HYDRO QUEBEC, HYDRO-QUEBEC

A multilayer material includes a solid substrate and at least two superimposed solid layers containing particles of an electrochemically active material, the first solid layer adhering to the solid substrate and the second solid layer adhering to the first solid layer. The multilayer material has a constant thickness of upper layer not less than 95% and a depth of penetration of the second layer into the first layer which is less than 10% of the thickness of the first layer, and enables as electrode constituent, generators having a low risk of overload degradation to be prepared.

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Номер записи: 18
15-01-2009 дата публикации

COATED METAL OXIDE PARTICLES WITH LOW DISSOLUTION RATE, METHODS FOR PREPARING SAME AND USE THEREOF IN ELECTROCHEMICAL SYSTEMS

Номер: US20090017378A1
Автор: Patrick Charest, Michel Perrier, Martin Dontigny, Michel Petitclerc, Abdelbast Guerfi, Karim Zaghib
Принадлежит: HYDRO-QUEBEC

Particles comprising a core and a coat covering at least part of the core surface. The core has more than 50% of an acidic metal oxide and the core coating is based on a polymer, preferably based on a soiled polymer with high electrochemical stability. The particle has a solubility rate (ts), in fixed time, of the metal oxide migrating towards the electrolyte, per cycle, which is less than 5 per 10000. The particles are obtained by mixing the polymer and a metal oxide, via dry process with addition of solvent. The electrodes constituting an electrode substrate at least partly coated with a mixture consisting of at least 40 of those particles have remarkable electrochemical properties, in particular regarding the lifetime of batteries in which they are incorporated.

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Номер записи: 19
12-11-2009 дата публикации

MULTILAYER MATERIAL BASED ON ACTIVE LITHIUM, METHOD OF PREPARATION AND APPLICATIONS IN ELECTROCHEMICAL GENERATORS

Номер: US20090280410A1
Автор: Karim Zaguib, Martin Dontigny, Michel Petitclerc, Michel Gauthier
Принадлежит: Hydro-Quebec

A method for preparing a multilayer material based on active lithium, by depositing a film of active lithium on a protective layer at a sufficient speed so that substantially no oxidation of the lithium occurs, and/or during a sufficient time for the adhesion of the lithium to develop after contact with the protective layer. The multilayer material, when incorporated in an electrochemical battery as an anode, has excellent impedance stability and no formation of dendrites during the cycling. Batteries where the anode is the multilayer material are particularly efficient in terms of their coulomb efficiency.

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Номер записи: 20
22-10-2009 дата публикации

APROTIC POLYMER/MOLTEN SALT TERNARY MIXTURE SOLVENT, METHOD FOR THE PRODUCTION AND USE THEREOF IN ELECTROCHEMICAL SYSTEMS

Номер: US20090263723A9
Автор: Karim Zaghig, Patrick Charest, Abdelbast Guerfi, Martin Dontigny, Michel Peticlerc
Принадлежит: HYDRO-QUEBEC

The invention relates to an aprotic polymer/molten salt ternary mixture solvent and to a corresponding quaternary mixture additionally comprising an ionic conducting salt, which are prepared by mixing the constituents of the mixture. These mixtures are advantageously used in the preparation of electrochemical membranes, electrochemical systems and of electrochromic systems. The invention also relates to electrochemical and electrochromic systems obtained hereby that exhibit, in particular, excellent electrochemical properties at low temperatures.

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Номер записи: 21
29-01-2009 дата публикации

APROTIC POLYMER/MOLTEN SALT TERNARY MIXTURE SOLVENT, METHOD FOR THE PRODUCTION AND USE THEREOF IN ELECTROCHEMICAL SYSTEMS

Номер: US20090029263A1
Автор: Karim Zaghig, Patrick Charest, Abdelbast Guerfi, Martin Dontigny, Michel Peticlerc
Принадлежит: HYDRO-QUEBEC

The invention relates to an aprotic polymer/molten salt ternary mixture solvent and to a corresponding quaternary mixture additionally comprising an ionic conducting salt, which are prepared by mixing the constituents of the mixture. These mixtures are advantageously used in the preparation of electrochemical membranes, electrochemical systems and of electrochromic systems. The invention also relates to electrochemical and electrochromic systems obtained hereby that exhibit, in particular, excellent electrochemical properties at low temperatures.

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Номер записи: 22
04-12-2018 дата публикации

Electrolyte purification method using calcium carbide, and electrolytes thus obtained

Номер: US0010147978B2
Автор: Karim Zaghib, Jocelyn Jalbert, Abdelbast Guerfi, Christophe Michot, Michel Gauthier, Martin Dontigny, Patrick Charest, ZAGHIB KARIM, JALBERT JOCELYN, GUERFI ABDELBAST, MICHOT CHRISTOPHE, GAUTHIER MICHEL, DONTIGNY MARTIN, CHAREST PATRICK, Zaghib, Karim, Jalbert, Jocelyn, Guerfi, Abdelbast, Michot, Christophe, Gauthier, Michel, Dontigny, Martin, Charest, Patrick
Принадлежит: HYDRO-QUEBEC, ZAGHIB KARIM, JALBERT JOCELYN, GUERFI ABDELBAST, MICHOT CHRISTOPHE, GAUTHIER MICHEL, DONTIGNY MARTIN, CHAREST PATRICK, HYDRO QUEBEC, Zaghib Karim, Jalbert Jocelyn, Guerfi Abdelbast, Michot Christophe, Gauthier Michel, Dontigny Martin, Charest Patrick

Process for the purification of an ionic electrolyte comprising at least one alkali metal salt, the process having at least one stage in which particles of at least one calcium salt are brought into contact. The process makes it possible to obtain electrolytes characterized in particular by a particularly low water content. The corresponding electrochemical generators which incorporate the electrolyte as constituent component are characterized by a noteworthy stability and are particularly safe.

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Номер записи: 23
16-05-2013 дата публикации

MULTILAYER MATERIAL BASED ON ACTIVE LITHIUM, METHOD OF PREPARATION AND APPLICATIONS IN ELECTROCHEMICAL GENERATORS

Номер: US20130122365A1
Автор: Dontigny Martin, GAUTHIER Michel, PETITCLERC MICHEL, Zaghib Karim
Принадлежит: HYDRO-QUEBEC

A method for preparing a multilayer material based on active lithium, by depositing a film of active lithium on a protective layer at a sufficient speed so that substantially no oxidation of the lithium occurs, and/or during a sufficient time for the adhesion of the lithium to develop after contact with the protective layer. The multilayer material, when incorporated in an electrochemical battery as an anode, has excellent impedance stability and no formation of dendrites during the cycling. Batteries where the anode is the multilayer material are particularly efficient in terms of their coulomb efficiency. 1. A method for preparing a multilayer material which comprises at least one layer of active lithium , said method comprising a step of depositing a film of active lithium on a protective layer at a sufficient speed so that substantially no oxidation of the lithium occurs , and/or during a sufficient time for the adhesion of the lithium to develop after contact with the protective layer.2. The method as claimed in claim 1 , wherein the layer of active lithium consists essentially of lithium which has a degree of purity higher than 99% claim 1 , or of a lithium alloy comprising less than 3000 ppm of impurities.3. The method as claimed in claim 1 , wherein the layer of active lithium carries on one or each of its surfaces claim 1 , a passivation layer which is such that the ratio “thickness of the passivation layer”/“thickness of the layer of active lithium” is between 2.10and 1.10.4. The method as claimed in claim 1 , wherein the passivation layer comprises at least one lithium compound from the group consisting of LiO claim 1 , LiCO claim 1 , LiOH claim 1 , and LiSO; wherein the LiO claim 1 , LiCOand LiOH are formed in a dry atmosphere.5. The method as claimed in claim 1 , wherein a protective layer is deposited on each of the surfaces of the film of active lithium claim 1 , the two protective layers consisting essentially of an ion-conducting material.6. The ...

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Номер записи: 24
22-08-2013 дата публикации

Multilayer material, method for making same and use as electrode

Номер: US20130216914A1
Автор: Abdelbast Guerfi, Karim Zaghib, Martin Dontigny, Michel Petitclerc, Patrick Charest
Принадлежит: HYDRO QUEBEC

A multilayer material including a solid substrate and at least two superimposed solid layers containing particles of an electrochemically active material, the first solid layer adhering to the solid substrate and the second solid layer adhering to the first solid layer. The multilayer material has a constant thickness of upper layer not less than 95% and a depth of penetration of the second layer into the first layer which is less than 10% of the thickness of the first layer, and enables as electrode constituent, generators having a low risk of overload degradation to be prepared.

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Номер записи: 25
14-03-2019 дата публикации

Electrolyte purification method using calcium carbide, and electrolytes thus obtained

Номер: US20190081367A1
Автор: Abdelbast Guerfi, Christophe Michot, Jocelyn Jalbert, Karim Zaghib, Martin Dontigny, Michel Gauthier, Patrick Charest
Принадлежит: HYDRO QUEBEC

Process for the purification of an ionic electrolyte including at least one alkali metal salt, the process having at least one stage in which particles of at least one calcium salt are brought into contact. The process makes it possible to obtain electrolytes characterized in particular by particularly low water content. The corresponding electrochemical generators which incorporate the electrolyte as constituent component are characterized by a noteworthy stability and are particularly safe.

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Номер записи: 26
14-07-2016 дата публикации

POSITIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY

Номер: US20160204424A1
Автор: Dontigny Martin, Guerfi Abdelbast, HANAI Kazuma, Saito Shinji, Sawai Takehiko, Urao Kazunori, Zaghib Karim
Принадлежит:

A positive electrode material is used to produce a positive electrode of a lithium secondary battery, the positive electrode material being a composite lithium material that includes a first lithium compound and a second lithium compound. For instance, the first lithium compound is in the form of particles and comprises at least one compound selected from a layered lithium compound and a spinel-type lithium compound. Preferably, the second lithium compound comprises at least one compound selected from a lithium-containing phosphate compound and a lithium-containing silicate compound. An amorphous carbon material layer and/or graphene-structured carbon material layer is present on the entire surface of the first lithium compound and the second lithium compound. The second lithium compound forms a thin-film layer on part or the entirety of the carbon material layer present on the surface of the first lithium compound particles. 1. A positive electrode material being a composite lithium material comprising:a first lithium compound in the form of particles;a first carbon material layer present on an entire surface of the first lithium compound particles;a second lithium compound forming a thin-film layer on part or the entirety of a surface of the first carbon material layer; anda second carbon material layer present on an entire surface of the thin film layer of the second lithium compound,wherein the carbon material of the first and second carbon material layers is independently selected from amorphous carbon material, graphene-structured carbon material, or a combination thereof; andwherein the first and second lithium compounds are not in direct physical contact.2. The positive electrode material of claim 1 , wherein the first lithium compound comprises a layered lithium compound claim 1 , a spinel-type lithium compound claim 1 , or a combination thereof.3. The positive electrode material according to claim 2 , wherein the first lithium compound comprises an α- ...

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Номер записи: 27
30-07-2020 дата публикации

MULTILAYER MATERIAL BASED ON ACTIVE LITHIUM, METHOD OF PREPARATION AND APPLICATIONS IN ELECTROCHEMICAL GENERATORS

Номер: US20200243833A1
Автор: Dontigny Martin, GAUTHIER Michel, PETITCLERC MICHEL, Zaghib Karim
Принадлежит: HYDRO-QUEBEC

A method for preparing a multilayer material based on active lithium, by depositing a film of active lithium on a protective layer at a sufficient speed so that substantially no oxidation of the lithium occurs, and/or during a sufficient time for the adhesion of the lithium to develop after contact with the protective layer. The multilayer material, when incorporated in an electrochemical battery as an anode, has excellent impedance stability and no formation of dendrites during the cycling. Batteries where the anode is the multilayer material are particularly efficient in terms of their coulombic efficiency. 1. A method for preparing a multilayer material which comprises at least one layer of a film of active lithium , said method comprising a step of:producing a film of active lithium which comprises a first and a second surface by laminating and reducing thickness of a lithium sheet between a first set of rolls;laminating between a second set of two rolls directly to the first surface of the film of active lithium a first protective layer at a sufficient speed so that substantially no oxidation of the first surface of the film of active lithium occurs, and during a sufficient time for the adhesion of the first surface of the film of active lithium to the first protective layer to develop after contact with said protective layer, wherein said first protective layer consists essentially of a ceramic deposited on an electrolyte layer said ceramic being in contact with the first surface of the film of active lithium, and wherein said first protective layer is laminated in 1 to 15 seconds;laminating to the second surface of the film of active lithium, a second protective layer consisting essentially of an electron-conducting material;wherein said method is carried out in a dry atmosphere, in a chamber with a dew point between −45° C. and −55° C. and a relative humidity between 0.7 and 2.2%.2. The method according to claim 1 , wherein the layer of a film of active ...

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Номер записи: 28
30-11-2017 дата публикации

COATED METAL OXIDE PARTICLES WITH LOW DISSOLUTION RATE, METHODS FOR PREPARING SAME AND USE THEREOF IN ELECTROCHEMICAL SYSTEMS

Номер: US20170346096A1
Автор: Charest Patrick, Dontigny Martin, Guerfi Abdelbast, Perrier Michel, PETITCLERC MICHEL, Zaghib Karim
Принадлежит: HYDRO-QUEBEC

Particles including a core and a coat covering at least part of the core surface. The core has more than 50% of an acidic metal oxide and the core coating is based on a polymer, preferably based on a solid polymer with high electrochemical stability. The particle has a solubility rate (ds), in fixed time, of the metal oxide migrating towards the electrolyte, per cycle, which is less than 5 per 10000. The particles are obtained by mixing the polymer and a metal oxide, via dry process with addition of solvent. The electrodes constituting an electrode substrate at least partly coated with a mixture consisting of at least 40 of those particles have remarkable electrochemical properties, in particular regarding the lifetime of batteries in which they are incorporated. 1. A particle comprising a core and a coating that covers at least part , preferably at least 80% , even more preferentially at least 90% and most advantageously 100% of the surface of said core , said particle being characterized in that:said core is preferably composed to at least 90% and even more preferentially to at least 94% by weight of an acidic metal oxide, with a pH preferably of less than 6.5, and even more preferentially with a pH of between 3 and 6;the coating of the core being based on a polymer, preferably based on a salified polymer, whose electrochemical stability is greater than or equal to 3.7 volts;{'sub': '50', 'the mean thickness of the coating is preferentially between 500 nanometers and 2 micrometers and the coated core has a mean size dpreferably of between 500 nanometers and 40 micrometers, and even more preferentially this size is between 2 and 20 micrometers; and'}the degree of solubility (ds), for a given time, of the metal oxide migrating toward the electrolyte, per cycle, is less than 5 per 10 000, and this degree is preferably between 2 and 4.5 per 10 000.2. A process for reducing the solubility of metal oxides in electrochemical systems , which consists in increasing the pH ...

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Номер записи: 29
28-11-2019 дата публикации

ELECTRODE MATERIAL, ELECTRODE AND SOLID-STATE BATTERY COMPRISING A COMPLEX OXIDE WITH AN OLIVINE STRUCTURE

Номер: US20190363363A1
Автор: Armand Michel, Bouchard Patrick, Dontigny Martin, Guerfi Abdelbast, HAMEL-PÂQUET Julie, HOVINGTON Pierre, Zaghib Karim
Принадлежит: HYDRO-QUEBEC

Described are positive electrode materials comprising at least one complex oxide of olivine structure, the complex oxide comprising a transition metal in oxidation state III, the positive electrodes comprising them and their manufacturing processes. Electrochemical cells comprising these electrodes, a polymer electrolyte and a negative electrode are also contemplated. 1. A positive electrode material comprising at least one complex oxide of olivine structure , the complex oxide comprising a transition metal in oxidation state III.2. The positive electrode material according to claim 1 , wherein the complex oxide is of formula MXO claim 1 , wherein M is at least one transition metal of oxidation III claim 1 , and X is selected from the elements S claim 1 , P claim 1 , Si claim 1 , B and Ge.3. The positive electrode material according to claim 2 , wherein M is Fe claim 2 , Ni claim 2 , Mn or Co or a combination of at least two thereof.4. The positive electrode material according to or claim 2 , wherein X is P or Si claim 2 , preferably X is P.5. The positive electrode material according to claim 4 , wherein X is P.6. The positive electrode material according to any one of to claim 4 , wherein the complex oxide is iron(III) phosphate of olivine structure claim 4 , wherein the iron(III) is optionally partly replaced with an element selected from Ni claim 4 , Mn claim 4 , and Co claim 4 , or a combination thereof.7. The positive electrode material according to claim 6 , wherein the complex oxide is FePO.8. The positive electrode material according to any one of to claim 6 , wherein the complex oxide is in the form of particles.9. The positive electrode material according to claim 8 , wherein the particles comprise microparticles.10. The positive electrode material according to claim 8 , wherein the particles comprise nanoparticles.11. The positive electrode material according to any one of to claim 8 , further comprising an electronically conductive material.12. The ...

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Номер записи: 30
05-10-2018 дата публикации

PURIFICATION PROCESS OF RAW CARBON NANOTUBES

Номер: FR3064623A1
Автор: Abdelbast Guerfi, Alexander Korzhenko, Ali DARWICHE, Julien Beausoleil, Karim Zaghib, Martin Dontigny, Naoyuki Kondo
Принадлежит: Arkema France SA, HYDRO QUEBEC

La présente invention propose un processus destiné à purifier des nanotubes de carbone bruts. Des mises en œuvre du processus comprennent la fourniture de nanotubes de carbone bruts contenant des impuretés métalliques ; et l'augmentation d'une densité apparente des nanotubes de carbone bruts pour produire des nanotubes de carbone compactés. Le processus comprend en outre la soumission des nanotubes de carbone compactés à un traitement thermique sous une atmosphère gazeuse de frittage afin d'ôter au moins une partie des impuretés contenues dans les nanotubes de carbone bruts, en produisant de ce fait des nanotubes de carbone purifiés. L'invention concerne également l'utilisation des nanotubes de carbone purifiés, obtenus selon ledit processus, comme additif électrique dans un matériau d'électrode sans une quelconque étape ultérieure de purification. L'invention concerne également une électrode destinée à une batterie à ions lithium, comprenant les nanotubes de carbone purifiés obtenus selon ledit processus.

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Номер записи: 31
08-07-2014 дата публикации

Purification of impure alkali metal salts by calcium carbide

Номер: CA2619649C
Автор: Abdelbast Guerfi, Christophe Michot, Jocelyn Jalbert, Karim Zaghib, Martin Dontigny, Michel Gauthier, Patrick Charest
Принадлежит: HYDRO QUEBEC

Procédé de purification d'un électrolyte ionique contenant au moins un sel alcalino-terreux, le procédé comportant au moins une étape de mise en contact des particules d'au moins un sel de calcium notamment le carbure de calcium. Le procédé permet d'obtenir de nouveaux électrolytes caractérisés notamment par une teneur en eau particulièrement faible. Les générateurs électrochimiques correspondant qui intègrent l'électrolyte comme élément constitutif se caractérisent par une stabilité remarquable et sont particulièrement sécuritaires.

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Номер записи: 32
26-07-2007 дата публикации

Co-ground mixture composed of an active material and a conducting material, its preparation methods and applications

Номер: CA2534276A1
Автор: Abdelbast Guerfi, Karim Zaghib, Martin Dontigny, Michel Petitclerc, Patrick Charest
Принадлежит: HYDRO QUEBEC

Mélange de particules constituées par un support à base d'au moins un matéri au actif M1 de taille moyenne Ti et de surface spécifique Si sur lequel sont attachée s, par des liaisons physiques et/ou chimiques, des particules d'au moins un matériau conducteur électronique M2 de taille moyenne T2 et de surface spécifique S2. Le mélange est caractérisé en ce que : le rapport des tailles moyennes T1/T2 est compris entre 5 et 10.000; le rapport des surfaces spécifiques S1/S2 est compris entre 1/300 et 1/2; et la quantité de matériau actif présent dans le mélange représente de préférence plus de 80 % de la quantité du matériau conducteur. L'incorporation de ces mélanges dans les éléments constitutifs de systèmes électrochimiques améliore sensiblement les performances de ces derniers. Mixture of particles consisting of a support based on at least one material M1 active medium size Ti and specific surface Si on which are attached s, by physical and / or chemical bonds, particles of at least one material M2 electronic driver of average size T2 and specific surface S2. The mixture is characterized in that: the ratio of average sizes T1 / T2 is between 5 and 10,000; the ratio of the specific surfaces S1 / S2 is between 1/300 and 1/2; and the amount of active material present in the mixture is preferably greater than 80% of the amount of the conductive material. The incorporation of these mixtures in the constituent elements of electrochemical systems substantially improves the performance of the latter.

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Номер записи: 33
29-07-2021 дата публикации

Polymers based on ionic monomers, compositions comprising same, methods for manufacturing same, and use thereof in electrochemical applications

Номер: CA3163834A1
Автор: Abdelbast Guerfi, Andreas Hintennach (Decede), Annie-Pier LAROUCHE, Jean-Christophe Daigle, Karim Zaghib, Martin Dontigny, Michel Armand, Patrick Charest
Принадлежит: HYDRO QUEBEC

La présente technologie concerne un polymère ionique comprenant au moins un motif de répétition comprenant le produit de réaction entre au moins un composé comprenant au moins deux groupes fonctionnels et un bis(halosulfonyl)imidure de métal pour utilisation dans des applications électrochimiques, notamment dans les accumulateurs électrochimiques tels que les batteries, les dispositifs électrochromes et les supercondensateurs. La présente technologie concerne également une composition polymérique, une composition d'électrolyte polymère solide, un électrolyte polymère solide, un matériau d'électrode comprenant ledit polymère ionique. Leurs utilisations dans des cellules électrochimiques et des accumulateurs électrochimiques ainsi que leurs procédés de fabrication sont également décrits.

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Номер записи: 34
03-02-2015 дата публикации

Aprotic polymer/molten salt ternary mixture solvent, method for the production and use thereof in electrochemical systems

Номер: CA2582960C
Автор: Abdelbast Guerfi, Karim Zaghib, Martin Dontigny, Michel Peticlerc, Patrick Charest
Принадлежит: HYDRO QUEBEC

Mélange ternaire polymère aprotique-sel fondu-solvant et mélange quaternaire correspondant comprenant additionnellement un sel de conduction ionique, préparés par mélange des composants du mélange. Ces mélanges sont avantageusement utilisés dans la préparation de membranes électrochimiques, de systèmes électrochimiques et de systèmes électrochromiques. Systèmes électrochimiques et électrochromiques ainsi obtenus, présentant notamment d'excellentes propriétés électrochimiques à basse température.

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Номер записи: 35
26-07-2016 дата публикации

Multilayer material, method for making same and use as electrode

Номер: CA2640173C
Автор: Abdelbast Guerfi, Karim Zaghib, Martin Dontigny, Michel Petitclerc, Patrick Charest
Принадлежит: HYDRO QUEBEC

Material) multi-couches comportant un support solide et au moins deux couches solides superposees qui contiennent des particules d'un materiau electrochimiquement actif, Ia premiere couche solide adhere au support solide et Ia deuxieme couche solide adhere a Ia premiere couche solide. Ce materiau multi-couches presente une Constance d'epaisseur de couche superieure ou egale a 95% et une profondeur de penetration de Ia deuxieme couche dans Ia premiere couche qui est inferieure a 10 % de I'epaisseur de Ia premiere couche, et il permet, comme element constitutif d'electrode, de preparer des generateurs presentant un faible risque de degradation en surcharge.

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Номер записи: 36
01-08-2007 дата публикации

Multi-layer material, production and use thereof as an electrode

Номер: CA2535064A1
Автор: Abdelbast Guerfi, Karim Zaghib, Martin Dontigny, Michel Petitclerc, Patrick Charest
Принадлежит: HYDRO QUEBEC

Matériaux multi-couches comportant un support solide et au moins deux couche s superposées solides qui contiennent des particules d'un matériau électrochimiquement actif. Ces matériaux multi-couches se caractérisent notamment par une faible interpénétration ent re couches solides adjacentes. Procédés de préparation des matériaux multi-couches de l'invention, notamment ceux qui comportent une étape d'épandage d'un mélange comportant des particules d e matériaux électrochimiquement actifs. Electrodes multi-couches obtenues par le procédé de l'invention et qui présentent des propriété mécaniques et électrochimiques remarquables. Générateurs électrochimiques qui incorporent au moins une électrode à base d'un matériau multi-couches de l'invention et qui se caractérisent par une sécurité exceptionnelle. Ces générateurs sont particulièrement adaptés pour une utilisation dans les systèmes électronique s portables et dans les véhicules hybrides, notamment grâce à une forte résistance en présence d e surcharge. Multilayer materials having a solid support and at least two solid superimposed layers that contain particles of an electrochemically active material. These multi-layer materials are particularly characterized by a low interpenetration between adjacent solid layers. Processes for preparing multi-layer materials of the invention, in particular those comprising a step of spreading a mixture comprising particles of electrochemically active materials. Multi-layer electrodes obtained by the process of the invention and which have remarkable mechanical and electrochemical properties. Electrochemical generators which incorporate at least one electrode based on a multi-layer material of the invention and which are characterized by exceptional safety. These generators are particularly suitable for use in portable electronic systems and in hybrid vehicles, in particular because of their high resistance in the presence of overload.

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Номер записи: 37
01-04-2009 дата публикации

Multilayer material based on active lithium, preparation method and applications in electrochemical generators

Номер: EP2040916A2
Автор: Karim Zaguib, Martin Dontigny, Michel Gauthier, Michel Petitclerc
Принадлежит: HYDRO QUEBEC

The invention concerns a method for producing a multilayer material based on active lithium, consisting of the deposition of an active lithium film on a protection layer with a sufficient speed to substantially avoid oxidation of the lithium and/ or over a sufficient period such that the adhesion of the lithium occurs upon contact with the protection layer. A multilayer material of the invention presents excellent impedance stability and absence of dendrite formation after the cycling process, when incorporated into an electrochemical battery as anode. The batteries, the anode of which is composed of a multilayer material of the invention are particularly efficient with respect to their coulombic efficiency.

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Номер записи: 38
02-08-2007 дата публикации

Coated metal oxide particles with low dissolution rate, methods for preparing same and use thereof in electrochemical systems

Номер: CA2637436A1
Автор: Abdelbast Guerfi, Karim Zaghib, Martin Dontigny, Michel Perrier, Michel Petitclerc, Patrick Charest
Принадлежит: Individual

Particules comprenant un noyau et un enrobage qui recouvre au moins en partie de la surface du noyau. Le noyau est compose pour plus de 50 % d'un oxyde métallique acide et l'enrobage du noyau est a base d'un polymère, de préférence a base d'un polymère sale de haute stabilité électrochimique. La particule possède un taux de solubilité (ts), a temps fixe, de l'oxyde métallique migrant vers l'électrolyte, par cycle, qui est inférieur a 5 pour 10000. Les particules sont obtenues par mélange du polymère et d'un oxyde métallique, par voie sec ou avec ajout de solvant. Les électrodes constituées d'un support d'électrode au moins partiellement recouvert par un mélange constitue d'au moins 40 de ces particules possèdent de remarquables propriétés électrochimiques, notamment en ce qui concerne la durée de vie des batteries dans lesquelles on les incorpore. Particles comprising a core and a coating which covers at least part of of the surface of the nucleus. The nucleus is composed for more than 50% of an oxide metal and the coating of the core is based on a polymer, preferably based on a dirty polymer of high electrochemical stability. The particle has a solubility (ts), fixed time, oxide electrolyte migrating to the electrolyte, per cycle, which is less than 5 10000. The particles are obtained by mixing the polymer and an oxide metallic, dry or with the addition of solvent. Electrodes made an electrode support at least partially covered by a mixture at least 40 of these particles have remarkable properties electrochemical, in particular with regard to the lifetime of batteries in which they are incorporated.

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Номер записи: 39
25-11-2014 дата публикации

Coated metal oxide particles with low dissolution rate, methods for preparing same and use thereof in electrochemical systems

Номер: CA2637436C
Автор: Abdelbast Guerfi, Karim Zaghib, Martin Dontigny, Michel Perrier, Michel Petitclerc, Patrick Charest
Принадлежит: HYDRO QUEBEC

Particules comprenant un noyau et un enrobage qui recouvre au moins en partie de la surface du noyau. Le noyau est compose pour plus de 50 % d'un oxyde métallique acide et l'enrobage du noyau est a base d'un polymère, de préférence a base d'un polymère sale de haute stabilité électrochimique. La particule possède un taux de solubilité (ts), a temps fixe, de l'oxyde métallique migrant vers l'électrolyte, par cycle, qui est inférieur a 5 pour 10000. Les particules sont obtenues par mélange du polymère et d'un oxyde métallique, par voie sec ou avec ajout de solvant. Les électrodes constituées d'un support d'électrode au moins partiellement recouvert par un mélange constitue d'au moins 40 de ces particules possèdent de remarquables propriétés électrochimiques, notamment en ce qui concerne la durée de vie des batteries dans lesquelles on les incorpore.

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Номер записи: 40
04-07-2017 дата публикации

Material consisting of composite oxide particles, method for preparing same, and use thereof as electrode active material

Номер: CA2772680C
Автор: Abdelbast Guerfi, Jean-François LABRECQUE, Karim Zaghib, Martin Dontigny, Patrick Charest
Принадлежит: HYDRO QUEBEC

Un matériau d'électrode positive est constitué de particules ayant un cur d'un oxyde complexe OC1, un enrobage au moins partiel d'un oxyde complexe OC2 et un dépôt superficiel adhérent de carbone. Le matériau est caractérisé en ce que l'oxyde complexe OC1est un oxyde ayant une densité d'énergie élevée et l'oxyde OC2 est un oxyde d'un métal qui a un effet catalytique sur la réaction de dépôt de carbone, l'oxyde ayant une bonne conductivité électronique. La présence de la couche OC2 a pour effet d'une part de faciliter le dépôt d'une couche adhérente de carbone à la surface des particules d'oxydes, et d'autre part d'améliorer la conductivité du matériau lorsqu'il est utilisé comme matériau d'électrode. Le matériau d'électrode est notamment utilisable dans la fabrication d'une batterie au lithium.

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Номер записи: 41
05-02-2020 дата публикации

Method for the purification of raw carbon nanotubes

Номер: EP3601161A2
Автор: Abdelbast Guerfi, Alexander Korzhenko, Ali DARWICHE, Julien Beausoleil, Karim Zaghib, Martin Dontigny, Naoyuki Kondo
Принадлежит: Arkema France SA, HYDRO QUEBEC

The present invention relates to a method for the purification of raw carbon nanotubes in order to obtain a metal impurity level of between 5 ppm and 200 ppm. The method comprises increasing the bulk density of the raw carbon nanotubes by means of compaction in order to produce compacted carbon nanotubes. The method also comprises sintering the compacted carbon nanotubes by means of heat treatment in a gaseous atmosphere in order to remove at least some of the metal impurities contained in the raw carbon nanotubes, thereby producing purified carbon nanotubes. The purified carbon nanotubes can be used directly as electronic conductors serving as basic additives for an electrode material, without requiring any subsequent purification step. The electrode material can then be used to produce an electrode intended for a lithium-ion battery.

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Номер записи: 42
28-02-2007 дата публикации

Process for purifying an electrolyte, the electrolyte thus obtained and its uses

Номер: CA2517248A1
Автор: Abdelbast Guerfi, Christophe Michot, Jocelyn Jalbert, Karim Zaghib, Martin Dontigny, Michel Gauthier, Patrick Charest
Принадлежит: HYDRO QUEBEC

Procédé de purification d'un électrolyte liquide contenant: - entre 0,1 et 2 Molaire d'au moins un sel alcalino-terreux; - un solvant du sel alcalino-terreux et qui contribue à la conductivité ionique de la solution; - jusqu'à 6.000 ppm d'impuretés; et - optionnellement, dans le cas des électrolytes de type polymère gel, jusqu' à 30 % en poids d'un polymère assurant la formation d'une matrice gel au sein de l'électrolyte liquide. Le procédé comporte au moins une étape de mise en contact des particules d' un sel de calcium avec l'électrolyte liquide et permet d'obtenir un électrolyte purifié améliorant les performances de tout système électrochimique dans lequel il e st incorporé. A method of purifying a liquid electrolyte containing: - between 0.1 and 2 molar of at least one alkaline earth salt; a solvent for the alkaline earth salt and which contributes to the ionic conductivity of the solution; - up to 6,000 ppm impurities; and optionally, in the case of gel-type electrolytes, up to 30% by weight of a polymer ensuring the formation of a gel matrix within the liquid electrolyte. The method comprises at least one step of contacting the particles of a calcium salt with the liquid electrolyte and makes it possible to obtain a purified electrolyte improving the performance of any electrochemical system in which it is incorporated.

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Номер записи: 43
12-10-2023 дата публикации

Polymers based on ionic monomers, compositions comprising same, methods for manufacturing same, and use thereof in electrochemical applications

Номер: US20230323029A1
Автор: Abdelbast Guerfi, Andreas Hintennach, Annie-Pier LAROUCHE, Jean-Christophe Daigle, Karim Zaghib, Martin Dontigny, Michel Armand, Patrick Charest
Принадлежит: HYDRO QUEBEC

The present technology relates to an ionic polymer comprising at least one repeating unit comprising the reaction product between at least one compound comprising at least two functional groups and a metal bis(halosulfonyl)imide for use in electrochemical applications, particularly in electrochemical accumulators such as batteries, electrochromic devices and supercapacitors. The present technology also relates to a polymer composition, a solid polymer electrolyte composition, a solid polymer electrolyte, an electrode material comprising said ionic polymer. Their uses in electrochemical cells and electrochemical accumulators as well as their manufacturing processes are also described.

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Номер записи: 44
26-10-2023 дата публикации

Method for the purification of raw carbon nanotubes

Номер: US20230339758A1
Автор: Abdelbast Guerfi, Alexander Korzhenko, Ali DARWICHE, Julien Beausoleil, Karim Zaghib, Martin Dontigny, Naoyuki Kondo
Принадлежит: Arkema France SA, HYDRO QUEBEC

A process for purifying raw carbon nanotubes to obtain a content in metallic impurities of between 5 ppm and 200 ppm. The process includes an increase in the bulk density of the raw carbon nanotubes via compacting to produce compacted carbon nanotubes. The process further includes sintering the compacted carbon nanotubes by undergoing thermal treatment under gaseous atmosphere in order to remove at least a portion of the metallic impurities contained in the raw carbon nanotubes, and consequently producing purified carbon nanotubes. These purified carbon nanotubes are directly usable as electronic conductors serving as basis additive to an electrode material without requiring any subsequent purification step. The electrode material can then be used to manufacture an electrode destined to a lithium-ion battery.

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Номер записи: 45
25-06-2008 дата публикации

Procédé de purification d'un électrolyte, électrolytes et générateurs ainsi obtenus et leurs utilisations

Номер: EP1933966A1
Автор: Abdelbast Guerfi, Christophe Michot, Jocelyn Jalbert, Karim Zaghib, Martin Dontigny, Michel Gauthier, Patrick Charest
Принадлежит: HYDRO QUEBEC

Procédé de purification d'un électrolyte ionique contenant au moins un sel alcalino-terreux, le procédé comportant au moins une étape de mise en contact des particules d'au moins un sel de calcium. Le procédé permet d'obtenir de nouveaux électrolytes caractérisés notamment par une teneur en eau particulièrement faible. Les générateurs électrochimiques correspondant qui intègrent l'électrolyte comme élément constitutif se caractérisent par une stabilité remarquable et sont particulièrement sécuritaires.

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Номер записи: 46
18-10-2012 дата публикации

Procedimiento de purificación de un electrolito que comprende una sal de metal alcalino

Номер: ES2388785T3
Автор: Abdelbast Guerfi, Christophe Michot, Jocelyn Jalbert, Karim Zaghib, Martin Dontigny, Michel Gauthier, Patrick Charest
Принадлежит: HYDRO QUEBEC

Procedimiento de purificación de un electrolito iónico que comprende por lo menos una sal de metal alcalino,comprendiendo dicho procedimiento por lo menos una etapa en la que las partículas de carburo de calcio se ponenen contacto con el electrolito.

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Номер записи: 47
30-07-2014 дата публикации

Flexible transparent electrochomic device, and a method for the preparation thereof

Номер: EP2758832A1
Автор: Abdelbast Guerfi, Bettina Herbig, Claudio Maria Mari, Gerhard Schottner, Giorgio Pagani, Jean-François LABRECQUE, Karim Zaghib, Luca Beverina, Martin Dontigny, Matteo Marco Salamone, Michel Perrier, Riccardo Ruffo, Uwe Posset
Принадлежит: Consorzio Interuniversitario Naz Per La Scienza E Tecnologia Dei Materiali Instm, Consorzio Interuniversitario Nazionale Per La Scienza E Tecnologia Dei Materiali (Instm), Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV, HYDRO QUEBEC, Universita degli Studi di Milano Bicocca

The invention is related to a flexible transparent electrochromic device, which comprises the following components, each of which is a flexible film: a working electrode comprising a transparent conducting substrate supporting an working electrode active material; a counter electrode comprising a transparent conducting substrate supporting a counter electrode active material; a solid polymer electrolyte (SPE) comprising a solution of a lithium salt in a polymer solvent. The method for preparing a said electrochromic device of the invention comprises the steps of: preparing a working electrode film, preparing a counter electrode film, preparing a polymer electrolyte film, and assembling the electrodes and the electrolyte, the method being implemented continuously.

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Номер записи: 48
08-08-2024 дата публикации

Processus de production de lithium métallique ou d'un alliage de celui-ci ou de pre-lithiation d'un matériau d'électrode

Номер: WO2024159330A1
Автор: Abdelbast Guerfi, Benoit Fleutot, Chisu KIM, François LAROUCHE, Gabriel Girard, Kamyab Amouzegar, Martin Dontigny
Принадлежит: HYDRO-QUEBEC

L'invention concerne un matériau d'intercalation de Li relithié pour produire du Li métallique ou pour pré-lithier un matériau d'électrode ainsi qu'une anode et une cellule d'électrolyse de production le comprenant. L'invention concerne également un procédé de production de Li métallique et de pré-lithiation d'un matériau d'électrode. Ce procédé comprend la réalisation d'une réaction électrolytique de production de Li dans la cellule d'électrolyse, dans lequel la cellule d'électrolyse comprend le matériau d'intercalation de Li relithié en tant qu'anode, un collecteur de courant en tant que cathode, et un électrolyte comprenant un sel de lithium.

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Номер записи: 49
09-08-2018 дата публикации

Materiau d'electrode, electrode et batterie tout solide comprenant un oxyde complexe de structure olivine

Номер: CA3048730A1
Автор: Abdelbast Guerfi, Julie Hamel-Paquet, Karim Zaghib, Martin Dontigny, Michel Armand, Patrick Bouchard, Pierre Hovington
Принадлежит: HYDRO QUEBEC

Des matériaux d'électrode positive comprenant au moins un oxyde complexe de structure olivine, l'oxyde complexe comprenant un métal de transition à l'état d'oxydation III, les électrodes positives les comprenant et leurs procédés de fabrication sont décrits. Les cellules électrochimiques comprenant ces électrodes, un électrolyte polymère et une électrode négative sont aussi envisagés.

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Номер записи: 50
26-09-2024 дата публикации

Process for the production of lithium metal or an alloy thereof or for the pre-lithiation of an electrode material

Номер: US20240318341A1
Автор: Abdelbast Guerfi, Benoit Fleutot, Chisu KIM, François LAROUCHE, Gabriel Girard, Kamyab Amouzegar, Martin Dontigny
Принадлежит: HYDRO QUEBEC

A relithiated Li intercalation material for producing Li metal or an alloy thereof or for pre-lithiating an electrode material as well as an anode and an electrolysis cell comprising same are provided. A method of producing Li metal or an alloy thereof or for pre-lithiating an electrode material is also provided. This method comprises carrying out a Li production electrolysis reaction in the electrolysis cell, wherein the electrolysis cell comprises the relithiated Li intercalation material as an anode, a current collector as a cathode, and an electrolyte comprising a lithium salt.

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Номер записи: 51