Patents by Inventor Renaud Bouchet

Renaud Bouchet 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: 20190326628
    Abstract: There is provided a solid electrolyte including at least one layer with no nitrogen and which includes LixPOySz, with 0<z?3, 2.1?x?2.4, and 1?y?4. A battery including the electrolyte, and a method for producing the electrolyte, are also provided.
    Type: Application
    Filed: April 19, 2019
    Publication date: October 24, 2019
    Applicants: Commissariat A L'Energie Atomique et aux Energies Alternatives, INSTITUT POLYTECHNIQUE DE GRENOBLE
    Inventors: Pierrick MORIN, Anass BENAYAD, Renaud BOUCHET, Lucie LE VAN-JODIN
  • Publication number: 20190123342
    Abstract: The invention relates to a method for preparing a positive electrode for a lithium-sulfur battery, comprising the following steps: a) a step of preparing a first mixture by placing a carbon additive which is carbon black and/or activated carbon; a carbon organic binder, and a solvent in contact; b) a step of carbonising said first mixture, by means of which the result is a powder comprising agglomerates of carbon black and/or activated carbon; c) a step of placing the powder obtained in b) in contact with a powder of Li2S thus forming a second mixture; d) a step of melting the powder of Li2S of the second mixture, by means of which the result is a composite powder comprising agglomerates of carbon black and/or activated carbon and particles of Li2S; e) a step of dispersing the powder obtained in d) in an organic binder; f) a step of depositing the dispersion obtained in e) on a substrate, which is a material comprising carbon fibres or a metal strip; and g) a step of drying said dispersion thus deposited.
    Type: Application
    Filed: September 12, 2018
    Publication date: April 25, 2019
    Inventors: Alice Robba, Fannie Alloin, Céline Barchasz, Renaud Bouchet, Rémi Vincent
  • Publication number: 20190088997
    Abstract: The present invention relates to a high energy density lithium metal polymer (LMP) battery comprising a positive electrode that includes a high potential positive electrode active material and a block copolymer of AB or BAB type, A being an ethylene oxide block and B being an anionic polymer block based on lithium bis(trifluoromethylsulfonyl)imide.
    Type: Application
    Filed: March 17, 2017
    Publication date: March 21, 2019
    Inventors: Renaud BOUCHET, Marc DESCHAMPS
  • Publication number: 20170040643
    Abstract: An “all-solid-state” Li-ion battery comprising a monolithic body formed by at least three superposed layers, including: at least one layer of a negative-electrode composite comprising at least one active negative-electrode material, at least one solid electrolyte, and at least one electron-conductivity providing agent. The at least one layer of a positive-electrode composite has at least one active lithium-based positive-electrode material, at least one solid electrolyte, and at least one electron-conductivity providing agent. The at least one intermediate solid-electrolyte layer separating the composite negative- and positive-electrode layers from one another. The solid-electrolyte content in each of the composite electrode layers independently varies from 10 to 80 wt %. The content of the electron-conductivity providing agent in each of the composite electrode layers independently varies from 2 to 25 wt %.
    Type: Application
    Filed: July 19, 2016
    Publication date: February 9, 2017
    Inventors: Michael DOLLE, Patrick Rozier, Gaelle Delaizir, Jean-Marie Tarascon, Virginie Viallet, Mathieu Morcrette, Vincent Seznec, Renaud Bouchet, Abdelmaula Aboulaich, Laurence Tortet
  • Patent number: 9431677
    Abstract: The invention relates to a BA diblock or BAB triblock copolymer, in which the A block is a non-substituted poly-oxyethylene chain having a mean molecular weight that is no higher than 100 kDa, and the B block is an anionic polymer which can be prepared using one or more monomers selected from among the vinyl monomers and derivatives thereof, said monomers being substituted with a (trifluoromethylsulfonyl)imide (TFSI) anion. The invention also relates to the uses of such a copolymer, in particular for preparing an electrolyte composition for lithium metal polymer (LMP) batteries.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: August 30, 2016
    Assignee: UNIVESITE D'AIX-MARSEILLE
    Inventors: Renaud Bouchet, Abdelmaula Aboulaich, Sebastien Maria, Trang Phan, Didier Gigmes, Denis Bertin, Rachid Meziane, Jean-Pierre Bonnet, Michel Armand
  • Patent number: 9431637
    Abstract: The present invention relates to a method for preparing a completely solid Li-ion battery having a solid state body wherein the battery is assembled in a single step by stacking at least one layer of a powder mix including a positive electrode active material and a solid electrolyte, at least one intermediate layer of a solid electrolyte and at least one layer of a powder mix including a negative electrode active material and a solid electrolyte, and simultaneous sintering of the three layers at a pressure of at least 20 MPa, under pulsating current. The invention also relates to the Li-ion battery obtained by such a method.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: August 30, 2016
    Assignee: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Michael Dolle, Patrick Rozier, Gaelle Delaizir, Jean-Marie Tarascon, Virginie Viallet, Mathieu Morcrette, Vincent Seznec, Renaud Bouchet, Abdelmaula Aboulaich, Laurence Tortet
  • Publication number: 20140272600
    Abstract: The invention relates to a BA diblock or BAB triblock copolymer, in which the A block is a non-substituted poly-oxyethylene chain having a mean molecular weight that is higher than 100 kDa and the B block is an anionic polymer which can be prepared using one or more monomers selected from among the vinyl monomers and derivatives thereof, said monomers being substituted with a (trifluoromethylsulfonyl)imide (TFSI) anion. The invention also relates to the uses of such a copolymer, in particular for preparing an electrolyte composition for lithium metal polymer (LMP) batteries.
    Type: Application
    Filed: September 5, 2012
    Publication date: September 18, 2014
    Inventors: Renaud Bouchet, Abdelmaula Aboulaich, Sébastien Maria, Trang Phan, Didier Gigmes, Denis Bertin, Rachid Meziane, Jean-Pierre Bonnet, Michel Armand
  • Publication number: 20130189562
    Abstract: The present invention relates to a method for preparing a completely solid Li-ion battery having a solid state body wherein the battery is assembled in a single step by stacking at least one layer of a powder mix including a positive electrode active material and a solid electrolyte, at least one intermediate layer of a solid electrolyte and at least one layer of a powder mix including a negative electrode active material and a solid electrolyte, and simultaneous sintering of the three layers at a pressure of at least 20 MPa, under pulsating current. The invention also relates to the Li-ion battery obtained by such a method.
    Type: Application
    Filed: February 17, 2011
    Publication date: July 25, 2013
    Inventors: Michael Dolle, Patrick Rozier, Gaelle Delaizir, Jean-Marie Tarascon, Virginie Viallet, Mathieu Morcrette, Vincent Seznec, Renaud Bouchet, Abdelmaula Aboulaich, Laurence Tortet
  • Patent number: 8445140
    Abstract: Solid polymer electrolyte (SPE) comprising at least one electrolyte salt and at least one linear triblock copolymer A-B-A, in which: the blocks A are polymers that may be prepared from one or more monomers chosen from styrene, o-methylstyrene, p-methylstyrene, m-t-butoxystyrene, 2,4-dimethylstyrene, m-chlorostyrene, p-chlorostyrene, 4-carboxystyrene, vinylanisole, vinylbenzoic acid, vinylaniline, vinylnaphthalene, 9-vinylanthracene, 1 to 10C alkyl methacrylates, 4-chloromethylstyrene, divinylbenzene, trimethylolpropane triacrylate, tetramethylolpropane tetraacrylate, 1 to 10C alkyl acrylates, acrylic acid and methacrylic acid; the block B is a polymer that may be prepared from one or more monomers chosen from ethylene oxide (EO), propylene oxide (PO), poly(ethylene glycol) acrylates (PEGA) and poly(ethylene glycol) methacrylates (PEGMA). Rechargeable battery cell or accumulator comprising an anode and a cathode between which is intercalated the said solid polymer electrolyte.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: May 21, 2013
    Assignee: Arkema France
    Inventors: Denis Bertin, Trang Phan, Renaud Bouchet
  • Publication number: 20100221614
    Abstract: Solid polymer electrolyte (SPE) comprising at least one electrolyte salt and at least one linear triblock copolymer A-B-A, in which: the blocks A are polymers that may be prepared from one or more monomers chosen from styrene, o-methylstyrene, p-methylstyrene, m-t-butoxystyrene, 2,4-dimethylstyrene, m-chlorostyrene, p-chlorostyrene, 4-carboxystyrene, vinylanisole, vinylbenzoic acid, vinylaniline, vinylnaphthalene, 9-vinylanthracene, 1 to 10C alkyl methacrylates, 4-chloromethylstyrene, divinylbenzene, trimethylolpropane triacrylate, tetramethylolpropane tetraacrylate, 1 to 10C alkyl acrylates, acrylic acid and methacrylic acid; the block B is a polymer that may be prepared from one or more monomers chosen from ethylene oxide (EO), propylene oxide (PO), poly(ethylene glycol) acrylates (PEGA) and poly(ethylene glycol) methacrylates (PELMA). Rechargeable battery cell or accumulator comprising an anode and a cathode between which is intercalated the said solid polymer electrolyte.
    Type: Application
    Filed: March 30, 2007
    Publication date: September 2, 2010
    Inventors: Denis Bertin, Trang Phan, Renaud Bouchet