Patents by Inventor Laure Monconduit

Laure Monconduit 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).

  • Patent number: 11139474
    Abstract: A method for preparing a material having an Sn:Sb intermetallic phase includes at least the steps of mixing chemical elements Sn and Sb, and treating the mixture with microwaves. An electrode is manufactured by using the material having an Sn:Sb intermetallic phase; forming the material in a form of powder; mixing the powder with carbon, a binder and a solvent to form an ink; coating a current collector with the ink; and drying the electrode.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: October 5, 2021
    Assignees: HUTCHINSON, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITÉ DE MONTPELLIER
    Inventors: David Ayme-Perrot, Philippe Sonntag, Philippe Antitomaso, Laure Monconduit, Francoise Morato-Lallemand, Philippe Girard
  • Patent number: 10326130
    Abstract: Precursor compounds of sodium alloy(s), for use as negative electrode active material in a sodium-ion battery, as well as to a negative electrode have the precursor compound of sodium alloy(s), as well as a sodium-ion battery having a negative electrode of this kind.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: June 18, 2019
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE MONTPELLIER
    Inventors: Laure Monconduit, Ali Darwiche, Julien Fullenwarth, Lorenzo Stievano, Moulay Tahar Sougrati
  • Publication number: 20170141388
    Abstract: Method for preparing an intermetallic material SnSb, said method comprising at least the following steps: a/mixing the precursors Sn and Sb, b/treating the mixture from step a/with microwaves. The intermetallic phase obtained may be used for the manufacture of electrodes.
    Type: Application
    Filed: November 16, 2016
    Publication date: May 18, 2017
    Applicants: Hutchinson, Centre National de la Recherche Scientifique, Université De Montpellier
    Inventors: David Ayme-Perrot, Philippe Sonntag, Philippe Antitomaso, Laure Monconduit, Francoise Morato-Lallemand, Philippe Girard
  • Publication number: 20160141611
    Abstract: Precursor compounds of sodium alloy(s), for use as negative electrode active material in a sodium-ion battery, as well as to a negative electrode have the precursor compound of sodium alloy(s), as well as a sodium-ion battery having a negative electrode of this kind.
    Type: Application
    Filed: June 16, 2014
    Publication date: May 19, 2016
    Inventors: Laure Monconduit, Ali Darwiche, Julien Fullenwarth, Lorenzo Stievano, Moulay Tahar Sougrati
  • Patent number: 8628694
    Abstract: The invention relates to active material for the negative electrode of secondary rechargeable lithium batteries, wherein the active material is based on doped or undoped carbon-bearing lithium titanium ramsdellite oxide with general formula Li2Ti3O7 or Li2.28Ti3.43O8. The active material comprises a carbon substituted ramsdellite phase having a general formula Li2?4cCc—Ti3O7, with 0.1<c<0.5, and more than 0.1 mol % of spinel phase having a general formula Li1+xTi2?xO4 with 0<x<0.33.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: January 14, 2014
    Assignees: Umicore, Centre National de la Recherche Scientifique, Universite Montpellier, SAFT Groupe S.A.
    Inventors: Michèle Van Thournout, Laure Monconduit, Claire Villevieille, Josette Olivier-Fourcade, Jean-Claude Jumas, Cécile Tessier
  • Patent number: 8486309
    Abstract: An active material for a lithium battery electrode comprises a phase having the formula Li2+v?4cCcTi3?wFexMyM?zO7??, in which M and M? are metal ions of groups of 2 to 15 having an ionic radius between 0.5 and 0.8 ? in an octahedral environment, v, w, x, y, z and ? being associated by the relationships: 2?=?v+4w?3x?ny?n?z, with n and n? being the respective formal degrees of oxidation of M and M?; ?0.5?v?0.5; y+z>0; x+y+z=w; and 0<w?0.3; and wherein at least part of the lithium is substituted by carbon according to the relationship 0<c(2+v)/4. The invention also includes a method for synthesizing the active material which comprises mixing and grinding the precursor compounds containing the metal components, carbon and oxygen; heating the mixture in an inert atmosphere at a temperature of 950 to 1050° C. in order to make a ceramic phase; and rapidly cooling the ceramic phase to produce the active material.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: July 16, 2013
    Assignees: Umicore, Centre National de la Recherche Scientifique, Saft Groupe S.A., Universite Montpellier 2
    Inventors: Stéphane Levasseur, Cécile Tessier, Josette Olivier-Fourcade, Laure Monconduit, Costana Ionica-Bousquet, Claire Villevieille, Michèle Van Thournout
  • Publication number: 20120097890
    Abstract: The invention relates to active material for the negative electrode of secondary rechargeable lithium batteries, wherein the active material is based on doped or undoped carbon-bearing lithium titanium ramsdellite oxide with general formula Li2Ti3O7 or Li2.28Ti3.43O8. The active material comprises a carbon substituted ramsdellite phase having a general formula Li2?4cCc—Ti3O7, with 0.1<c<0.5, and more than 0.1 mol % of spinel phase having a general formula Li1+xTi2?xO4 with 0<x<0.33.
    Type: Application
    Filed: February 10, 2010
    Publication date: April 26, 2012
    Applicants: UMICORE, SAFT GROUPE S.A., UNIVERSITE MONTPELLIER 2, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Michèle Van Thournout, Laure Monconduit, Claire villevielle, Josette Olivier-Fourcade, Jean-Claude Jumas, Cécile Tessier
  • Patent number: 8114542
    Abstract: The invention relates to a method for producing an anode for a lithium-ion battery, said anode comprising a current collector formed from a transition metal M in the form of a foam and an active material comprising a binary phosphide of said metal M, said active material corresponding to the formula MPx in which 1?x?4. The method consists in subjecting the metal M foam to the action of phosphorus vapor at a temperature between 300° C. and 600° C., the phosphorus being present in a proportion which differs by at most 10% from the stoichiometric proportion relative to the metal M. The invention also relates to an anode for a lithium-ion battery, and to a lithium-ion battery comprising such an anode.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: February 14, 2012
    Assignee: Centre National de la Recherche Scientifique
    Inventors: Frederic Gillot, Jean-Marie Tarascon, Laure Monconduit
  • Publication number: 20110042628
    Abstract: The present invention relates to lithium cells, accumulators and batteries, and more particularly an active material for the negative electrode of rechargeable batteries. It concerns more particularly a material comprising a phase having a general formula Li2+v?4cCcTi3-wFexMyM?zO7?, in which M and M? are metal ions of groups of 2 to 15 having an ionic radius between 0.5 and 0.8 ? in an octahedral oxygen environment, v, w, x, y, z and ? being associated by the relationships: 2?=?v+4w?3x-ny-n?z, with n and n? the respective formal degrees of oxidation of M and M?; ?0.5?v?+0.5; y+z>0; x+y+z=w; and 0<w?0.3; characterized in that at least part of the lithium is substituted by carbon according to the relationship 0<c?(2+v)/4. The material has improved mass and volume capacities that may reach 190 Ah/kg, while preserving the previously acquired advantages, notably: a small loss of capacity at the first cycle, of 2 to 10 Ah/kg; excellent cyclability; low polarization of 30 to 70 mV in C/15 régime.
    Type: Application
    Filed: November 19, 2008
    Publication date: February 24, 2011
    Inventors: Stéphane Levasseur, Cécile Tessier, Josette Olivier-Fourcade, Laure Monconduit, Costana Ionica-Bousquet, Claire Villevieille, Michèle Van Thournout
  • Publication number: 20090286156
    Abstract: The invention relates to a method for producing an anode for a lithium-ion battery, said anode comprising a current collector formed from a transition metal M in the form of a foam and an active material comprising a binary phosphide of said metal M, said active material corresponding to the formula MPx in which 1?x?4. The method consists in subjecting the metal M foam to the action of phosphorus vapor at a temperature between 300° C. and 600° C., the phosphorus being present in a proportion which differs by at most 10% from the stoichiometric proportion relative to the metal M. The invention also relates to an anode for a lithium-ion battery, and to a lithium-ion battery comprising such an anode.
    Type: Application
    Filed: May 16, 2006
    Publication date: November 19, 2009
    Inventors: Frederic Gillot, Jean-Marie Tarascon, Laure Monconduit
  • Patent number: 6939643
    Abstract: The invention provides a rechargeable lithium-ion battery comprising the specific lithium composite exhibiting good charge-discharge cycle performance and mechanical properties. The lithium-material comprises an intermetallic lithium/transition metal pnictide phase, wherein the transition metal present in said lithium/transition metal pnictide phase is a metal of one of the columns IVa and Va of the periodic table of the elements.
    Type: Grant
    Filed: December 17, 2001
    Date of Patent: September 6, 2005
    Assignees: Centre National de la Recherche Scientifique (CNRS), Universite de Montpellier II
    Inventors: Laure Monconduit-Jegou, Frédéric Gillot, Marie-Liesse Doublet
  • Publication number: 20030113631
    Abstract: The invention provides a rechargeable lithium-ion battery comprising the specific lithium composite exhibiting good charge-discharge cycle performance and mechanical properties. The lithium-material comprises an intermetallic lithium/transition metal pnictide phase, wherein the transition metal present in said lithium/transition metal pnictide phase is a metal of one of the columns IVa and Va of the periodic table of the elements.
    Type: Application
    Filed: December 17, 2001
    Publication date: June 19, 2003
    Inventors: Laure Monconduit-Jegou, Frederic Gillot, Marie-Liesse Doublet