Patents by Inventor Christophe Vincendeau

Christophe Vincendeau 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).

  • Publication number: 20220199993
    Abstract: The invention relates to an electrode formulation for a Li-ion battery. The invention also relates to a method for preparing electrodes using said formulation by compounding/extrusion at low residence time. The invention further relates to an electrode obtained by this method and to secondary Li-ion batteries comprising at least one such electrode.
    Type: Application
    Filed: March 12, 2020
    Publication date: June 23, 2022
    Inventors: Oleksandr Korzhenko, Christophe Vincendeau
  • Publication number: 20200350560
    Abstract: A formulation is described in the form of a solid-liquid dispersion for the manufacture of a cathode, comprising a liquid-phase solvent, a sulfur-carbon composite in the form of particles with a median diameter D50 of less than 50 ?m, and less than 10% by number of the particles of the dispersion are particles of sulfur in elemental form.
    Type: Application
    Filed: January 16, 2019
    Publication date: November 5, 2020
    Applicant: Arkema France
    Inventors: Alexander Korzhenko, Patrick Delprat, Christophe Vincendeau
  • Publication number: 20200346930
    Abstract: An agglomerated solid material comprising loose carbon nanotubes and that is free from organic compounds is described, as well as the method of preparation thereof, and uses thereof, where the agglomerated solid material consists of a continuous network of carbon nanotubes comprising aggregates of carbon nanotubes with an average size d50 under 5 ?m, in a proportion below 60% by area, determined by image analysis by electron microscopy and has an apparent density between 0.01 g/cm3 and 2 g/cm3.
    Type: Application
    Filed: January 10, 2019
    Publication date: November 5, 2020
    Applicant: Arkema France
    Inventors: Patrick Delprat, Alexander Korzhenko, Christophe Vincendeau, Daniel Cochard
  • Patent number: 10633508
    Abstract: The invention relates to a method for producing a master batch comprising between 0.01 and 50 wt. % of carbonaceous nanofillers and at least one sulphurated material such as elemental sulphur by melt compounding, and to the master batch thus produced and the different uses thereof. The invention also relates to a solid composition comprising carbonaceous nanofillers dispersed in a sulphurated material.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: April 28, 2020
    Assignee: Arkema France
    Inventors: Alexander Korzhenko, Christophe Vincendeau, Thierry Aubert
  • Patent number: 10446831
    Abstract: The present invention relates to an active material suitable for the production of an electrode, in particular an electrode for a Li—S battery. The active material according to the invention comprises carbon nanofillers homogeneously dispersed in the substance of a sulphur material, the active material being obtainable according to a method involving melting in the presence of intense mechanical energy. The quantity of carbon nanofillers in the active material represents 1 to 25% by weight with respect to the total weight of the active material. The active material according to the invention allows an improvement in the electronic conductivity of the formulation of the electrode. Another aspect of the invention is the use of the active material in an electrode, in particular in a Li—S battery cathode.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: October 15, 2019
    Assignee: Arkema France
    Inventors: Alexander Korzhenko, Christophe Vincendeau
  • Patent number: 10208180
    Abstract: Hardenable inorganic systems such as cements, plasters, ceramics or liquid silicates, usable for example in the building trade, construction industry or oil drilling industry. The insertion of carbonaceous nanofillers, such as carbon nanotubes, for reinforcing mechanical properties and improving such systems. A method for producing a master mixture including at least one superplasticiser and carbonaceous nanofillers at a mass ratio of between 0.1% and 25%, preferably between 0.2% and 20%, in relation to the total weight of the master mixture, and also to said master mixture thus obtained and to the use thereof in a hardenable inorganic system with a view to producing materials with improved properties. The disclosure applies to the construction industry, the building trade and the oil drilling industry.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: February 19, 2019
    Assignee: ARKEMA FRANCE
    Inventors: Alexander Korzhenko, Christophe Vincendeau, Anna Lushnikova, Grigory Ivanovich Yakovlev, Grigoriy Nikolayevich Pervushin, Jean-Marc Suau, David Platel
  • Patent number: 10158116
    Abstract: A method for the manufacture of a paste composition suitable for the production of an electrode for lead-acid battery, including mixing a carbon nanofiller/lead oxide composite of a first particulate size with sulphuric acid, water and further lead oxide of a second particulate size. Also, the paste thus obtained, the composite used in its manufacture, and the electrode and lead-acid battery obtained from this paste.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: December 18, 2018
    Assignee: ARKEMA FRANCE
    Inventors: Alexander Korzhenko, Patrick Delprat, Christophe Vincendeau, Beni Cahana
  • Publication number: 20180148561
    Abstract: Hardenable inorganic systems such as cements, plasters, ceramics or liquid silicates, usable for example in the building trade, construction industry or oil drilling industry. The insertion of carbonaceous nanofillers, such as carbon nanotubes, for reinforcing mechanical properties and improving such systems. A method for producing a master mixture including at least one superplasticiser and carbonaceous nanofillers at a mass ratio of between 0.1% and 25%, preferably between 0.2% and 20%, in relation to the total weight of the master mixture, and also to said master mixture thus obtained and to the use thereof in a hardenable inorganic system with a view to producing materials with improved properties. The disclosure applies to the construction industry, the building trade and the oil drilling industry.
    Type: Application
    Filed: November 21, 2017
    Publication date: May 31, 2018
    Applicant: Arkema France
    Inventors: Alexander Korzhenko, Christophe Vincendeau, Anna Lushnikova, Grigory Ivanovich Yakovlev, Grigoriy Nikolayevich Pervushin, Jean-Marc Suau, David Platel
  • Publication number: 20180053939
    Abstract: The present invention relates to the field of lead batteries. More particularly, the present invention relates to the use, in the preparation of a lead battery electrode formulation, of a liquid composition, stable over time, comprising from 0.2% to 10% by weight, preferably from 0.2% to 5% by weight, of carbon-based nanofillers, at least one water-soluble polymer and at least one cationic component chosen from alkali metal or alkaline earth metal cations and ammonium ions dispersed in a liquid medium. Another subject-matter of the invention is a lead battery electrode obtained by using the said composition.
    Type: Application
    Filed: March 4, 2016
    Publication date: February 22, 2018
    Inventors: Alexander KORZHENKO, Christophe VINCENDEAU, Patrick DELPRAT, Beni CAHANA
  • Publication number: 20180047989
    Abstract: The invention relates to the field of lead batteries. More particularly, it relates to a solid composition comprising between 5 and 60 wt. % of carbon nanofillers, preferably carbon nanotubes, dispersed homogeneously in a hydrosoluble polymer in the presence of at least one cationic component selected from alkali or alkaline-earth metal cations and ammonium ions. The invention also relates to the use of said composition for producing lead battery electrode formulations.
    Type: Application
    Filed: March 4, 2016
    Publication date: February 15, 2018
    Inventors: Alexander KORZHENKO, Christophe VINCENDEAU, Patrick DELPRAT
  • Patent number: 9850363
    Abstract: Hardenable inorganic systems such as cements, plasters, ceramics or liquid silicates, usable for example in the building trade, construction industry or oil drilling industry. The insertion of carbonaceous nanofillers, such as carbon nanotubes, for reinforcing mechanical properties and improving such systems. A method for producing a master mixture including at least one superplasticizer and carbonaceous nanofillers at a mass ratio of between 0.1% and 25%, preferably between 0.2% and 20%, in relation to the total weight of the master mixture, and also to said master mixture thus obtained and to the use thereof in a hardenable inorganic system with a view to producing materials with improved properties. The disclosure applies to the construction industry, the building trade and the oil drilling industry.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: December 26, 2017
    Assignee: ARKEMA FRANCE
    Inventors: Alexander Korzhenko, Christophe Vincendeau, Anna Lushnikova, Grigory Ivanovich Yakovlev, Grigoriy Nikolayevich Pervushin, Jean-Marc Suau, David Platel
  • Publication number: 20170352873
    Abstract: The present invention relates to an active material suitable for the production of an electrode, in particular an electrode for a Li—S battery. The active material according to the invention comprises carbon nanofillers homogeneously dispersed in the substance of a sulphur material, the active material being obtainable according to a method involving melting in the presence of intense mechanical energy. The quantity of carbon nanofillers in the active material represents 1 to 25% by weight with respect to the total weight of the active material. The active material according to the invention allows an improvement in the electronic conductivity of the formulation of the electrode. Another aspect of the invention is the use of the active material in an electrode, in particular in a Li—S battery cathode.
    Type: Application
    Filed: December 21, 2015
    Publication date: December 7, 2017
    Inventors: Alexander KORZHENKO, Christophe VINCENDEAU
  • Publication number: 20170313844
    Abstract: The invention relates to a method for producing a master batch comprising between 0.01 and 50 wt. % of carbonaceous nanofillers and at least one sulphurated material such as elemental sulphur by melt compounding, and to the master batch thus produced and the different uses thereof. The invention also relates to a solid composition comprising carbonaceous nanofillers dispersed in a sulphurated material.
    Type: Application
    Filed: October 27, 2015
    Publication date: November 2, 2017
    Inventors: Alexander KORZHENKO, Christophe VINCENDEAU, Thierry AUBERT
  • Publication number: 20150372289
    Abstract: A method for the manufacture of a paste composition suitable for the production of an electrode for lead-acid battery, including mixing a carbon nanofiller/lead oxide composite of a first particulate size with sulphuric acid, water and further lead oxide of a second particulate size. Also, the paste thus obtained, the composite used in its manufacture, and the electrode and lead-acid battery obtained from this paste.
    Type: Application
    Filed: January 25, 2013
    Publication date: December 24, 2015
    Applicants: VULCAN AUTOMOTIVE INDUSTRIES LTD., ARKEMA FRANCE
    Inventors: Alexander KORZHENKO, Patrick DELPRAT, Christophe VINCENDEAU, Beni CAHANA
  • Publication number: 20150240047
    Abstract: Hardenable inorganic systems such as cements, plasters, ceramics or liquid silicates, usable for example in the building trade, construction industry or oil drilling industry. The insertion of carbonaceous nanofillers, such as carbon nanotubes, for reinforcing mechanical properties and improving such systems. A method for producing a master mixture including at least one superplasticiser and carbonaceous nanofillers at a mass ratio of between 0.1% and 25%, preferably between 0.2% and 20%, in relation to the total weight of the master mixture, and also to said master mixture thus obtained and to the use thereof in a hardenable inorganic system with a view to producing materials with improved properties. The disclosure applies to the construction industry, the building trade and the oil drilling industry.
    Type: Application
    Filed: November 25, 2013
    Publication date: August 27, 2015
    Applicant: ARKEMA FRANCE
    Inventors: Alexander Korzhenko, Christophe Vincendeau, Anna Lushnikova, Grigory Ivanovich Yakovlev, Gregoriy Nikolayevich Pervushin, Jean-Marc Suau, David Platel