Patents by Inventor Katia Guerin

Katia Guerin 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: 20230187687
    Abstract: The invention relates to a fluorination process consisting in bringing an inorganic compound M into contact with an atmosphere comprising difluorine gas, the inorganic compound M being a garnet based on the elements Li, La, Zr, A and O and for which the relative composition of the Li, La, Zr and A cations corresponds to the formula (I): LixLa3ZrzAw.
    Type: Application
    Filed: April 29, 2021
    Publication date: June 15, 2023
    Applicants: Solvay SA, Centre National de la Recherche Scientifique, Clermont Auvergne INP, Universite Clermont Auvergne
    Inventors: Laure Bertry, Réka Toth, Thierry Le Mercier, Valérie Buissette, Katia Guerin, Marc Dubois, Michaël Herraiz
  • Publication number: 20190023574
    Abstract: Some embodiments relate to a process of manufacturing a material for a lithium battery with enhanced or improved electrochemical characteristics, to the materials that can be obtained by the process of some embodiments, to an electrode incorporating a material of some embodiments, to a battery, in particular a lithium battery, incorporating a material of some embodiments, as well as to the devices incorporating a lithium battery according to some embodiments. Some embodiments can be applied in the manufacture of lithium batteries.
    Type: Application
    Filed: September 29, 2016
    Publication date: January 24, 2019
    Inventors: Marc DUBOIS, Katia GUÉRIN ARAUJO DA SILVA, Élodie DISA-SAINTON
  • Patent number: 9705133
    Abstract: The invention relates to the use of subfluorinated carbon nano-objects as an electrode material of primary lithium batteries, the electrode obtained by that use and a lithium battery comprising such an electrode. The subfluorinated carbon nano-objects used in the invention have a central part made of nonfluorinated carbon and a peripheral part made of fluorinated carbon of formula CFX where x represents the F/C atomic ratio, which is such that 0.25<x<1.1 and whereof the spectrum 19F MAS RMN has a single peak between ?150 and ?190 ppm/CFCl3 (outside of rotation bands). The invention applies to the field of storing and retrieving energy, in particular.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: July 11, 2017
    Assignee: UNIVERSITE BLAISE PASCAL-CLERMONT-FERRAND II
    Inventors: Katia Guerin Araujo Da Silva, Marc Denis Alphonse Dubois, Andre Hamwi
  • Publication number: 20160072130
    Abstract: The invention relates to the use of subfluorinated carbon nano-objects as an electrode material of primary lithium batteries, the electrode obtained by that use and a lithium battery comprising such an electrode. The subfluorinated carbon nano-objects used in the invention have a central part made of nonfluorinated carbon and a peripheral part made of fluorinated carbon of formula CFx where x represents the F/C atomic ratio, which is such that 0.25<x<1.1 and whereof the spectrum 19F MAS RMN has a single peak between ?150 and ?190 ppm/CFCl3 (outside of rotation bands). The invention applies to the field of storing and retrieving energy, in particular.
    Type: Application
    Filed: December 11, 2013
    Publication date: March 10, 2016
    Inventors: Katia GUERIN ARAUJO DA SILVA, Marc Denis Alphonse DUBOIS, Andre HAMWI
  • Patent number: 8507288
    Abstract: The invention relates to the use of carbon nanomaterials as a filtration material pervious to nitrogen dioxide and impervious to ozone. The invention also relates to the use of carbon nanomaterials having a specific surface, measured by the BET method, of 15 to 40 m2/g inclusive and a form factor, equal to the ratio (highest dimension/lowest dimension) of the nanomaterial, of 5 to 250 inclusive, as material for filtering a gas mixture containing nitrogen dioxide and ozone, being pervious to the nitrogen dioxide and impervious to the ozone. The invention can be used in the field of air pollution.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: August 13, 2013
    Assignees: Centre National de la Recherche Scientifique, Universite Blaise Pascal—Clermont—Ferrand II
    Inventors: Alain Pauly, Marc Dubois, Katia Guerin, André Hamwi, Jérôme Brunet, Christelle Varenne, Bernard Lauron
  • Publication number: 20110124112
    Abstract: The invention relates to the use of carbon nanomaterials as a filtration material pervious to nitrogen dioxide and impervious to ozone. The invention also relates to the use of carbon nanomaterials having a specific surface, measured by the BET method, of 15 to 40 m2/g inclusive and a form factor, equal to the ratio (highest dimension/lowest dimension) of the nanomaterial, of 5 to 250 inclusive, as material for filtering a gas mixture containing nitrogen dioxide and ozone, being pervious to the nitrogen dioxide and impervious to the ozone. The invention can be used in the field of air pollution.
    Type: Application
    Filed: May 27, 2009
    Publication date: May 26, 2011
    Inventors: Alain Pauly, Marc Dubois, Katia Guerin, André Hamwi, Jérôme Brunet, Christelle Varenne, Bernard Lauron
  • Publication number: 20110098517
    Abstract: The invention relates to the use of subfluorinated carbons as a solid lubricant. Said subfluorinated carbons simultaneously contain fluorinated carbon domains with a (CF)n structure and non-fluorinated graphitic carbon domains, in powder form, as a solid lubricant. The invention can be used in the field of solid lubricants.
    Type: Application
    Filed: May 27, 2009
    Publication date: April 28, 2011
    Inventors: André Hamwi, Marc Dubois, Katia Guerin, Rachid Yazami