Patents Assigned to Hydro-Quebec
  • Publication number: 20190288260
    Abstract: This application describes a process for the preparation of flexible electrode-separator elements or assemblies, which includes the application of an electrode material on the separator. The electrode material comprises graphene, for instance produced by graphite exfoliation. The electrode-separator elements obtained by the process as well as their use in electrochemical cells are also described.
    Type: Application
    Filed: July 21, 2017
    Publication date: September 19, 2019
    Applicants: HYDRO-QUÉBEC, Transfert Plus, S.E.C.
    Inventors: Nicolas DELAPORTE, Diby Benjamin OSSONON, Karim ZAGHIB, Daniel BELANGER
  • Publication number: 20190288349
    Abstract: A process for recycling an electrode material comprising graphene and an electrochemically active material is described. The process comprises a step of adding, in any order, water and a non-miscible solvent to the electrode material, thereby forming a biphasic system comprising an organic phase and an aqueous phase; and a step of separating and filtering the organic phase to recover graphene. The process optionally comprises additional steps of washing, drying, and/or thermally treating. Also described are electrodes including the recycled graphene, as well as the electrochemical cells and their uses.
    Type: Application
    Filed: July 21, 2017
    Publication date: September 19, 2019
    Applicants: HYDRO-QUÉBEC, TRANSFERT PLUS, S.E.C.
    Inventors: Nicolas DELAPORTE, Diby Benjamin OSSONON, Karim ZAGHIB, Daniel BELANGER
  • Patent number: 10403893
    Abstract: 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.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: September 3, 2019
    Assignees: HYDRO-QUEBEC, SEI CORPORATION
    Inventors: Takehiko Sawai, Shinji Saito, Kazunori Urao, Kazuma Hanai, Karim Zaghib, Abdelbast Guerfi, Martin Dontigny
  • Patent number: 10378937
    Abstract: A method for clustering of transient signals is provided. The method comprises the steps of acquiring the transient signals as they come, dynamically building up clusters of similar transient signals in a hyperspace based on comparison and clustering rules so that each new one of the transient signal acquired ends up in a cluster with similar transient signals formerly acquired, analyzing the clusters to determine respective signatures defined by the transient signals gathered in the clusters, and processing the signatures to detect a phenomenon connectable to an intrinsic attribute of the transient signals.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: August 13, 2019
    Assignee: HYDRO-QUÉBEC
    Inventor: François Léonard
  • Patent number: 10381642
    Abstract: Anode comprising an anode material, a protective material and a current collector is provided. The anode material is a mixture comprising an active material, at least one electronically conductive agent and at least one binder. The active material may be an alloy of silicon and lithium or an alloy of silicon oxide and lithium. There is provided a process for the preparation of the anode. Also, there is provided use of the anode in the fabrication of a battery.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: August 13, 2019
    Assignee: HYDRO-QUÉBEC
    Inventors: Karim Zaghib, Dominic Leblanc, Abdelbast Guerfi, Julie Trottier, Patrick Charest
  • Patent number: 10371862
    Abstract: A method of receiving a substorm activity data log from one or more remote sensors, where substorm activity is due to solar activity. The method also includes receiving a harmonic distortion data stream from one or more remote observatories monitoring disturbances on a power grid, where the distortion is due to geomagnetically induced currents. The method also includes applying a mathematical model to the harmonic distortion data stream to create a derived harmonic distortion data log, and comparing phase-to-phase similarity of the three phases from the derived harmonic distortion data log. The method also includes predicting future adverse events due to geomagnetically-induced currents on the power grid based at least in part on the comparison and the substorm activity data log, and creating a warning based on the prediction.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: August 6, 2019
    Assignees: INTERNATIONAL BUSINESS MACHINES CORPORATION, HYDRO-QUÉBEC
    Inventors: Chumki Basu, Luc Cauchon, Sébastien Guillon, Innocent Kamwa, Manikandan Padmanaban
  • Publication number: 20190207275
    Abstract: A process for the recycling of an electrochemically active material is described. The process comprises the steps of reacting the electrochemically active material with an oxidizing agent or a reducing agent in a solvent without addition of a strong acid, to produce a lithium salt and a delithiated electrochemically active material precipitate. This precipitate is separated from the lithium salt and used in the regeneration of the electrochemically active material.
    Type: Application
    Filed: May 19, 2017
    Publication date: July 4, 2019
    Applicant: HYDRO-QUÉBEC
    Inventors: Kamyab AMOUZEGAR, Patrick BOUCHARD, Nancy TURCOTTE, Karim ZAGHIB
  • Patent number: 10329157
    Abstract: A process for the preparation of nanofilament particles of SiOx in which x is between 0.8 and 1.2, the process comprising: a step consisting of a fusion reaction between silica (SiO2) and silicon (Si), at a temperature of at least about 1410° C., to produce gaseous silicon monoxide (SiO); and a step consisting of condensation of the gaseous SiO to produce the SiOx nanofilament particles. The process may also comprising using carbon.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: June 25, 2019
    Assignee: HYDRO-QUéBEC
    Inventors: Dominic Leblanc, Abdelbast Guerfi, Karim Zaghib, Pierre Hovington, Julie Trottier
  • Patent number: 10320029
    Abstract: All-solid-state lithium-sulfur electrochemical cells and production methods thereof are described. The Li—S electrochemical cells comprise at least one multilayer component which comprises an ion-conductive solid electrolyte film, a positive electrode film containing a sulfur composite, and a negative electrode film containing lithium. Positive electrodes films, prefabricated electrolyte-positive electrode elements, their uses as well as methods of their production are also described.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: June 11, 2019
    Assignee: HYDRO-QUÉBEC
    Inventors: Karim Zaghib, Chisu Kim, Abdelbast Guerfi, Francis Barray, Catherine Gagnon, Julie Trottier
  • Publication number: 20190157679
    Abstract: This application describes an electrode material comprising particles of an electrochemically active material dispersed in a polymer binder, where the polymer binder is an acidic polymer or a mixture comprising a binder soluble in an aqueous solvent or a non-aqueous solvent (e.g. NMP) and an acidic polymer. The application also further relates to processes for the preparation of the electrode material and electrodes containing the material, as well as to the electrochemical cells and their use.
    Type: Application
    Filed: June 30, 2017
    Publication date: May 23, 2019
    Applicants: HYDRO-QUÉBEC, SONY CORPORATION
    Inventors: Jean-Christophe DAIGLE, Yuichiro ASAKAWA, Shinichi UESAKA, Karim ZAGHIB
  • Publication number: 20190137592
    Abstract: The disclosed method corrects consumption measurements provided by meters presumed to be connected to a same network. The measurements taken by the meters at time intervals are collected in a form of samples used to determine electrical quantities in relation with currents and voltages relating to the meters. A selection of a group of retained samples among the samples considered to be valid, corresponding to a load range or a range of load variation ratio carried by the network based on the electrical quantities is performed. Correction functions of the consumption measurements are defined from the group of retained samples, and the consumption measurements are adapted according to the correction functions. An anomaly corresponding to an electrical non-compliance of a meter can be detected by the method.
    Type: Application
    Filed: April 12, 2017
    Publication date: May 9, 2019
    Applicant: Hydro-Québec
    Inventors: François LÉONARD, Arnaud ZINFLOU, Mathieu VIAU, Alexandre BOUFFARD
  • Publication number: 20190103632
    Abstract: There is provided a use, in an electrolyte for a battery, of an additive which comprises at least one organocatalyst. Also, there is provided a method of preventing the contact between the anode and residual water in a battery and/or reducing the level of gas in a battery. Moreover, there is provided electrolyte for a battery, comprising an additive which comprises at least one organocatalyst. Moreover, there is provided a battery comprising an electrolyte which comprises an additive which comprises at least one organocatalyst.
    Type: Application
    Filed: April 5, 2017
    Publication date: April 4, 2019
    Applicants: HYDRO-QUÉBEC, MURATA MANUFACTURING CO., LTD.
    Inventors: Jean-Christophe DAIGLE, Shinichi UESAKA, Yuichiro ASAKAWA, Karim ZAGHIB
  • Publication number: 20190081367
    Abstract: 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.
    Type: Application
    Filed: November 12, 2018
    Publication date: March 14, 2019
    Applicant: HYDRO-QUEBEC
    Inventors: Karim ZAGHIB, Jocelyn Jalbert, Abdelbast GUERFI, Christophe MICHOT, Michel GAUTHIER, Martin DONTIGNY, Patrick CHAREST
  • Publication number: 20190067688
    Abstract: This application describes electrode materials and methods of producing them, the materials containing particles having a core-shell structure, wherein the shell of the core-shell particles comprises a polymer, the polymer being grafted on the surface of the core particle by covalent bonds. Electrodes and electrochemical cells containing these electrode materials are also contemplated, as well as their use.
    Type: Application
    Filed: January 25, 2017
    Publication date: February 28, 2019
    Applicants: HYDRO-QUÉBEC, SONY CORPORATION
    Inventors: Jean-Christophe D'AIGLE, Yuichiro ASAKAWA, Shinichi UESAKA, Karim ZAGHIB, Mélanie BEAUPRÉ
  • Publication number: 20190048281
    Abstract: Polymers used as rolling lubricating agents, to compositions including said polymers, and to alkali metal films including the polymers or compositions on the surface(s) thereof. The use of said polymers and compositions is also described for strip-rolling alkali metals or alloys thereof in order to obtain thin films. Methods for producing said thin films, which are suitable for use in electrochemical cells, are also described. An improved lubricant according to formula I, which, for example, achieves enhanced conductivity, and/or enables the production of electrochemical cells having an improved life span in cycles.
    Type: Application
    Filed: October 12, 2018
    Publication date: February 14, 2019
    Applicant: HYDRO-QUEBEC
    Inventors: Karim Zaghib, Michel Armand, Patrick Bouchard, Serge Verreault, Julie Hamel-Påquet, Gabriel Girard
  • Patent number: 10193145
    Abstract: A process for the preparation of carbon-coated particles, where the particles include an electrochemically active material. The process includes the steps of emulsion polymerization, drying and thermally treating the polymer to obtain a nano-layer of carbon on the particles, where the carbon layer includes fibers and nitrogen-containing polyaromatics have a graphene-like structure. Also, the particles produced by the method as well as to electrode materials, electrodes and electrochemical cells including the particles.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: January 29, 2019
    Assignees: HYDRO-QUEBEC, MURATA MANUFACTURING CO., LTD
    Inventors: Jean-Christophe Daigle, Yuichiro Asakawa, Shinichi Uesaka, Karim Zaghib
  • Patent number: 10181621
    Abstract: An electrode including an electrode material of the same type as electrode materials used in Li-ion batteries and a dye is provided. The electrode may further include a semiconductor material. The electrode is used in the manufacture of a battery that is rechargeable using light. Method of manufacturing an electrode, including the following steps: (a) preparing a film including an electrode material of the same type as electrode materials used in Li-ion batteries; and (b) bringing into contact the film and a solution including a photosensitive dye.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: January 15, 2019
    Assignee: HYDRO-QUEBEC
    Inventors: Andrea Paolella, Cyril Faure, Abdelbast Guerfi, Pierre Hovington, Karim Zaghib
  • Publication number: 20180356449
    Abstract: There is proposed a computer-implemented method for automatic correction of a topology of a smart network that uses the information contained in the voltage measurements provided by smart meters in order to determine which meter is connected to which transformer. The method starts from an initial topology and divides up the meters into first and second batches for each transformer. Successive reallocations of meters in the second batches are made according to similarities with average voltages calculated and corrected from the first batches of meters. The method proceeds by iterations until there remain no more meters attributable to other transformers and updates the topology so that its evolution at a given time be readable.
    Type: Application
    Filed: December 14, 2016
    Publication date: December 13, 2018
    Applicant: HYDRO-QUÉBEC
    Inventors: François LÉONARD, Arnaud ZINFLOU
  • Patent number: 10147978
    Abstract: 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.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: December 4, 2018
    Assignee: HYDRO-QUEBEC
    Inventors: Karim Zaghib, Jocelyn Jalbert, Abdelbast Guerfi, Christophe Michot, Michel Gauthier, Martin Dontigny, Patrick Charest
  • Patent number: 10144674
    Abstract: A method for preparing a ceramic from an inorganic base material in the form of a powder with a high boiling point, including a step in which the powder of the inorganic base material is mixed with a second inorganic component which is also in powder form and which serves as a dopant for the inorganic base material. The dopant comprises a single inorganic material or a mixture of at least two inorganic materials that have a dopant effect on the inorganic base material. The method also includes a sintering step performed at a high temperature. Owing to the high density thereof, the resulting ceramics are suitable for use as a target element. The films and electrodes obtained from said ceramics have particularly beneficial properties.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: December 4, 2018
    Assignee: HYDRO-QUEBEC
    Inventors: Guy Campet, Iyad Saadeddin, Karim Zaghib