Patents by Inventor Marie GUIGNARD

Marie GUIGNARD 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).

  • Publication number: 20220298024
    Abstract: A composition of general formula (1): Nax[MnaNibCrc]O2+y (1), wherein: 0.6?x?0.8; ?0.1?y?0.1; 0.55?a?0.7; 0.25?b?0.3; c?0.05; and a+b+c?1.0, an intermediate product for preparing a composition of general formula (1) and a process of synthesis, wherein the mixed sodium-transition metal oxide of general formula (1) may generally show an essentially or solely P2 structure, and may be used as a positive electrode material for a sodium ion secondary battery.
    Type: Application
    Filed: August 27, 2019
    Publication date: September 22, 2022
    Applicants: TOYOTA MOTOR EUROPE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Laurent CASTRO, Jun YOSHIDA, Claude DELMAS, Marie GUIGNARD, Elodie GUERIN
  • Patent number: 10601039
    Abstract: A mixed oxide of sodium and transition metals having the formula (1): Nax[MnaNibCoc]O2+y??(1) wherein: 0.5?x?0.9, ?0.1?y?0.1, a+b+c=1, 4a+2b+3c=4?x+2y, and 0<c?0.5. Further a process for producing such a mixed oxide, a positive electrode including such a mixed oxide and a sodium ion secondary battery including such a positive electrode.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: March 24, 2020
    Assignees: TOYOTA MOTOR EUROPE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Jun Yoshida, Claude Delmas, Marie Guignard, Dany Carlier-Larregaray
  • Publication number: 20180205081
    Abstract: A mixed oxide of sodium and transition metals having the formula (1): Nax[MnaNibCoc]O2+y ??(1) wherein: 0.5?x?0.9, ?0.1?y?0.1, a+b+c=1, 4a+2b+3c=4?x+2y, and 0<c?0.5. Further a process for producing such a mixed oxide, a positive electrode including such a mixed oxide and a sodium ion secondary battery including such a positive electrode.
    Type: Application
    Filed: July 15, 2015
    Publication date: July 19, 2018
    Applicants: TOYOTA MOTOR EUROPE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Jun YOSHIDA, Claude DELMAS, Marie GUIGNARD, Dany CARLIER-LARREGARAY