Patents by Inventor Matthieu LE DIGABEL

Matthieu LE DIGABEL 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).

  • Ionic liquid-based electrolytes for use in electrochemical storage devices
    Patent number: 11335954
    Abstract: Electrolytes comprising at least one lithium salt and at least two ionic liquids, at least one of which is an ionic liquid resulting from the association of at least one cation complying with the following formula (I): In which: R1 is an acyclic hydrocarbon group; n is an integer ranging from 0 to 3; m is an integer ranging from 1 to 4; and at least one Y anion.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: May 17, 2022
    Assignee: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES
    Inventors: Stéphane Cadra, Jonathan Szymczak, Matthieu Le Digabel, Agnès Biller
  • Supercapacitor comprising an electrolyte composition comprising an additive from the family of fluorinated phosphazenes
    Patent number: 11139119
    Abstract: A supercapacitor comprising at least one cell formed of two electrodes of opposite polarity. The cell is formed from a positive electrode and a negative electrode made of activated carbon, between which an electrolyte composition is arranged comprising at least one nitrile solvent, at least one salt and also comprising at least one additive from the family of phosphazenes having at least one fluorine atom. One of the compositions comprises acetonitrile, a tetramethylammonium tetrafluoroborate salt and an additive, hexafluorocyclotriphosphazene at a concentration of 1 to 10%.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: October 5, 2021
    Assignee: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES
    Inventors: Matthieu Le Digabel, Agnés Biller, Nelly Penot
  • SUPERCAPACITOR COMPRISING AN ELECTROLYTE COMPOSITION COMPRISING AN ADDITIVE FROM THE FAMILY OF FLUORINATED PHOSPHAZENES
    Publication number: 20200365337
    Abstract: A supercapacitor comprising at least one cell formed of two electrodes of opposite polarity. The cell is formed from a positive electrode and a negative electrode made of activated carbon, between which an electrolyte composition is arranged comprising at least one nitrile solvent, at least one salt and also comprising at least one additive from the family of phosphazenes having at least one fluorine atom. One of the compositions comprises acetonitrile, a tetramethylammonium tetrafluoroborate salt and an additive, hexafluorocyclotriphosphazene at a concentration of 1 to 10%.
    Type: Application
    Filed: August 20, 2018
    Publication date: November 19, 2020
    Inventors: Matthieu Le Digabel, Agnés Biller, Nelly Penot
  • NOVEL IONIC LIQUIDS RESULTING FROM THE ASSOCIATION OF A SPECIFIC CATION AND A SPECIFIC ANION
    Publication number: 20200079733
    Abstract: Ionic liquids comprising the association of a cation have the following formula (I), in which —R1 is an acyclic hydrocarbonated group, n is a whole number between 0 and 3, and m is a whole number between 1 and 4, and an anion selected from a nitrate anion, a phosphate anion or an imidide anion.
    Type: Application
    Filed: March 21, 2018
    Publication date: March 12, 2020
    Inventors: Stéphane Cadra, Jonathan Szymczak, Matthieu Le Digabel, Agnès Biller
  • NEW IONIC LIQUID-BASED ELECTROLYTES FOR USE IN ELECTROCHEMICAL STORAGE DEVICES
    Publication number: 20200020984
    Abstract: Electrolytes comprising at least one lithium salt and at least two ionic liquids, at least one of which is an ionic liquid resulting from the association of at least one cation complying with the following formula (I): In which: R1 is an acyclic hydrocarbon group; n is an integer ranging from 0 to 3; m is an integer ranging from 1 to 4; and at least one Y anion.
    Type: Application
    Filed: March 21, 2018
    Publication date: January 16, 2020
    Inventors: Stéphane Cadra, Jonathan Szymczak, Matthieu Le Digabel, Agnès Biller
  • SPECIFIC LITHIUM BATTERIES COMPRISING NON-AQUEOUS ELECTROLYTES BASED ON SULFONE COMPOUNDS
    Publication number: 20160359199
    Abstract: The invention relates to lithium batteries comprising at least one electrochemical cell comprising an electrolyte conducting lithium ions comprising at least one sulfone solvent, at least one additive selected from among anhydride compounds and at least one lithium salt, which electrolyte is positioned between a positive electrode comprising, as an active material, a lithiated oxide of formula LiNi0.4Mn1.6O4 or LiNi0.5Mn1.5O4 and a negative electrode comprising, as an active material, Li4Ti5O12.
    Type: Application
    Filed: February 4, 2015
    Publication date: December 8, 2016
    Applicant: RENAULT S.A.S
    Inventors: Herve GALIANO, Matthieu LE DIGABEL, Agnes BILLER, Nelly PENOT, Jean Frederic MARTIN, Christophe DUDEZERT