Patents by Inventor Laëtitia DUBAU

Laëtitia DUBAU 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: 12206095
    Abstract: Disclosed is an electrode for a rechargeable energy storage device, including several inner layers interposed between two outer layers, the inner layers including several electrode material layers ME composed of at least one electrode active material and several porous current collector layers CC composed of electrically-conductive material(s) whose electronic conductivity is greater than or equal to 102 S·cm-1, the layers of electrode material ME and current collector CC being alternated. The outer layers do not consist of the porous current collector layers CC. Additionally, the electrode has a total thickness ranging from strictly more than 4 mm, preferably ranging from strictly more than 4 mm to 10 mm, in particular ranging from strictly more than 4 mm to 8 mm.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: January 21, 2025
    Assignees: EASYL ZINC, CENTRE NATIONAL DE LA RECHERCHE
    Inventors: Vincent Caldeira, Julien Thiel, Marian Chatenet, Laëtitia Dubau, François Lacoste
  • Patent number: 12009523
    Abstract: Disclosed is an electrode for an energy storage rechargeable device, including a plurality of electrode material layers and a plurality of porous current collector layers, the electrode material layers and current collector layers being arranged in a specific manner, an energy storage rechargeable device including the electrode, and the uses of the electrode.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: June 11, 2024
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, INSTITUT POLYTECHNIQUE DE GRENOBLE
    Inventors: Vincent Caldeira, Laetitia Dubau, Marian Chatenet
  • Publication number: 20220149356
    Abstract: Disclosed is an electrode for a rechargeable energy storage device, including several inner layers interposed between two outer layers, the inner layers including several electrode material layers ME composed of at least one electrode active material and several porous current collector layers CC composed of electrically-conductive material(s) whose electronic conductivity is greater than or equal to 102 S·cm-1, the layers of electrode material ME and current collector CC being alternated. The outer layers do not consist of the porous current collector layers CC. Additionally, the electrode has a total thickness ranging from strictly more than 4 mm, preferably ranging from strictly more than 4 mm to 10 mm, in particular ranging from strictly more than 4 mm to 8 mm.
    Type: Application
    Filed: February 27, 2020
    Publication date: May 12, 2022
    Inventors: Vincent CALDEIRA, Julien THIEL, Marian CHATENET, Laëtitia DUBAU, François LACOSTE
  • Publication number: 20200350592
    Abstract: Disclosed is an electrode for an energy storage rechargeable device, including a plurality of electrode material layers and a plurality of porous current collector layers, the electrode material layers and current collector layers being arranged in a specific manner, an energy storage rechargeable device including the electrode, and the uses of the electrode.
    Type: Application
    Filed: August 29, 2018
    Publication date: November 5, 2020
    Inventors: Vincent CALDEIRA, Laetitia DUBAU, Marian CHATENET
  • Patent number: 9755246
    Abstract: The present invention relates to hollow platinum nanoparticles with a diameter comprised between 3 and 20 nm which comprise a first central cavity and optionally at least one second cavity at the periphery of the first cavity, the shell of which is dense and single-crystal with a thickness comprised between 0.2 and 5 nm. The invention also relates to a method for manufacturing such nanoparticles, as well as to their use as an electrocatalyst in fuel cells.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: September 5, 2017
    Assignees: L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE, INSTITUT POLYTECHNIQUE DE GRENOBLE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Audrey Montaut, Sandrine Moutin, Marian Julien Chatenet, Julien Frederic Christophe Durst, Frederic Thibaut Maillard, Laetitia Dubau
  • Publication number: 20140227632
    Abstract: The present invention relates to hollow platinum nanoparticles with a diameter comprised between 3 and 20 nm which comprise a first central cavity and optionally at least one second cavity at the periphery of the first cavity, the shell of which is dense and single-crystal with a thickness comprised between 0.2 and 5 nm. The invention also relates to a method for manufacturing such nanoparticles, as well as to their use as an electrocatalyst in fuel cells.
    Type: Application
    Filed: June 24, 2013
    Publication date: August 14, 2014
    Inventors: Audrey MONTAUT, Sandrine MOUTIN, Marian Julien CHATENET, Julien Frederic Christophe DURST, Frederic Thibaut MAILLARD, Laetitia Dubau