Patents by Inventor Julien Breger

Julien Breger 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).

  • METHOD FOR PREPARING A SOLVENT-FREE ELECTRODE AND ELECTRODE FORMULATIONS OBTAINABLE BY SAID METHOD
    Publication number: 20240290981
    Abstract: The present application relates to fluoropolymer-based, solvent-free electrode formulations obtained by extrusion and/or comprising one or more co-binders including TPU, to electrodes containing the same and to corresponding electrochemical elements and storage cells.
    Type: Application
    Filed: June 15, 2022
    Publication date: August 29, 2024
    Applicants: SAFT, AUTOMOTIVE CELLS COMPANY SE
    Inventors: André DE ALMEIDA, Julien BREGER
  • METHOD FOR LASER TREATMENT OF A LITHIUM SURFACE
    Publication number: 20230343940
    Abstract: A method for treating a surface of a strip or film, the strip or film being made of lithium or a lithium-based alloy, the method comprising a step of radiating at least one portion of the surface of the strip or film with a laser beam, the radiating step being carried out in a controlled atmosphere, the laser beam radiating the entire area of the at least one portion of the surface of the strip or film.
    Type: Application
    Filed: April 29, 2021
    Publication date: October 26, 2023
    Applicant: SAFT
    Inventors: Philippe BOREL, Maeva GAZZIERO, Delphin LEVASSEUR, Julien BREGER, Ekaterina PAVLENKO, Olivier HUCHET, Sylvie HERREYRE
  • Positive electrode material for lithium-ion accumulator
    Patent number: 8999582
    Abstract: A composition including (a) a lithiated oxide of transition metals containing at least nickel, cobalt and aluminum and (b) a lithiated phosphate of at least one transition metal, the surface of which is at least partially covered by a layer of carbon. In the composition, the proportion by mass of the lithiated oxide of transition metals containing at least nickel, cobalt and aluminum is less than or equal to 10% of the weight of the composition, and the proportion by mass of the lithiated phosphate of at least one transition metal is greater than or equal to 90% of the weight of the composition. A lithium-ion or lithium-polymer type accumulator including at least one positive electrode containing this composition.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: April 7, 2015
    Assignee: SAFT Groupe SA
    Inventors: Cecile Tessier, Julien Breger, Olivier Jan, Philippe Biensan, Bridget Deveney, Kamen Nechev
  • Positive Electrode Material
    Publication number: 20130017447
    Abstract: An electrode material comprising a LixFeyMzPw04 compound for an electrode for a Li rechargeable battery, wherein 0.90<=x<=1.03, 0.85<=y<=1.0, 0.01<=z<=0.15, 0.90<=w<=1.0, 1.9<=x+y+z<=2.1; wherein M comprises at least one element selected from the group consisting of Mn, Co, Mg, Cr, Zn, Al, Ti, Zr, Nb, Na, and Ni; and wherein the compound comprises a charge transfer resistance increase of less than 20% between room temperature and 0° C.
    Type: Application
    Filed: September 24, 2010
    Publication date: January 17, 2013
    Inventors: Cécile Tessier, Stephane Levasseur, Philippe Biensan, Julien Breger
  • Positive electrode material for a lithium ion accumulator
    Patent number: 8080184
    Abstract: A compound of formula Li1+x(NiaMnbCocAly)1?xO2 wherein: a, b and c are non-zero; a+b+c+y=1; 1.05?(1+x)/(1?x)?1.25; 0.015?y(1?x); and the atomic amount of manganese representing from 95% to 100% of the atomic amount of nickel.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: December 20, 2011
    Assignees: Saft, Centre National de la Recherche Scientifique, Umicore
    Inventors: Julien Breger, Frederic Castaing, Philippe Biensan, Jessica Bains, Laurence Croguennec, Claude Delmas, Stephane Levasseur
  • POSITIVE ELECTRODE MATERIAL FOR LITHIUM-ION ACCUMULATOR
    Publication number: 20100320972
    Abstract: A composition comprising: a) a lithiated oxide of transition metals containing at least nickel, cobalt and aluminium; b) a lithiated phosphate of at least one transition metal, the surface of which is at least partially covered by a layer of carbon, the proportion by mass of the lithiated oxide of transition metals containing at least nickel, cobalt and aluminium, being less than or equal to 10 % of the weight of the composition. the proportion by mass of the lithiated phosphate of at least one transition metal being greater than or equal to 90 % of the weight of the composition. A lithium-ion or lithium-polymer type accumulator comprising at least one positive electrode containing this composition.
    Type: Application
    Filed: June 23, 2010
    Publication date: December 23, 2010
    Applicant: SAFT GROUPE SA
    Inventors: Cecile TESSIER, Julien Breger, Oliver Jan, Philippe Biensan, Bridget Deveney, Kamen Nechev
  • POSITIVE ELECTRODE MATERIAL FOR A LITHIUM ION ACCUMULATOR
    Publication number: 20100108939
    Abstract: A compound of formula Li1+x(NiaMnbCocAly)1?xO2 wherein: a, b and c are non-zero; a+b+c+y=1; 1.05?(1+x)/(1?x)?1.25; 0.015?y(1?x); the atomic amount of manganese representing from 95% to 100% of the atomic amount of nickel.
    Type: Application
    Filed: October 1, 2009
    Publication date: May 6, 2010
    Applicants: SAFT GROUPE S.A., CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UMICORE
    Inventors: Julien BREGER, Frederic CASTAING, Philippe BIENSAN, Jessica BAINS, Laurence CROGUENNEC, Claude DELMAS, Stephane LEVASSEUR