Patents by Inventor Nathalie Delpuech

Nathalie Delpuech 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).

  • Low cost Si-based negative electrodes with enhanced cycling performance
    Patent number: 9692044
    Abstract: A rechargeable battery comprising a positive electrode, a negative electrode and an electrolyte, wherein: —the electrolyte comprises a SEI film-forming agent, and—the negative electrode comprises a micrometric Si based active material, a polymeric binder material and a conductive agent, wherein at least part of the surface of the Si based active material consists of Si—OCO—R groups, Si being part of the active material, and R being the polymeric chain of the binder material.
    Type: Grant
    Filed: April 4, 2013
    Date of Patent: June 27, 2017
    Assignees: Umicore, Centre National de la Recherche Scientifique, Institut National de la Recherche Scientifique, Umicore Korea Ltd.
    Inventors: Nathalie Delpuech, Driss Mazouzi, Bernard Lestriez, Dominique Guyomard, Lionel Roue
  • Silicon-Based Powder and Electrode Containing the Same
    Publication number: 20160233490
    Abstract: The invention relates to a powder comprising particles containing a core and a shell, said powder preferably having a surface area (BET) of at most 50 m2/g, said core containing silicon (Si) and said shell containing silicon oxide SiOx with 0<x?2, wherein said silicon oxide contains Sin+ cations with n being an integer from 1 to 4, wherein said silicon oxide contains Si4+ cations in an amount of at least 70 mol % from the total amount of Sin? cations.
    Type: Application
    Filed: July 3, 2014
    Publication date: August 11, 2016
    Inventors: Stijn PUT, Jean-Sebastien BRIDEL, Nathalie DELPUECH, Bernard LESTRIEZ, Philippe MOREAU, Nicolas DUPRE
  • Low Cost Si-Based Negative Electrodes with Enhanced Cycling Performance
    Publication number: 20150349328
    Abstract: A rechargeable battery comprising a positive electrode, a negative electrode and an electrolyte, wherein: —the electrolyte comprises a SEI film-forming agent, and—the negative electrode comprises a micrometric Si based active material, a polymeric binder material and a conductive agent, wherein at least part of the surface of the Si based active material consists of Si—OCO—R groups, Si being part of the active material, and R being the polymeric chain of the binder material.
    Type: Application
    Filed: April 4, 2013
    Publication date: December 3, 2015
    Inventors: Nathalie Delpuech, Driss Mazouzi, Bernard Lestriez, Dominique Guyomard, Lionel Roue
  • Low Cost Si-Based Negative Electrodes with Enhanced Cycling Performance
    Publication number: 20150093636
    Abstract: A rechargeable battery comprising a positive electrode, a negative electrode and an electrolyte, wherein: —the electrolyte comprises a SEI film-forming agent, and—the negative electrode comprises a micrometric Si based active material, a polymeric binder material and a conductive agent, wherein at least part of the surface of the Si based active material consists of Si—OCO—R groups, Si being part of the active material, and R being the polymeric chain of the binder material.
    Type: Application
    Filed: April 4, 2013
    Publication date: April 2, 2015
    Inventors: Nathalie Delpuech, Driss Mazouzi, Bernard Lestriez, Dominique Guyomard, Lionel Roue