Patents by Inventor Philippe Poizot
Philippe Poizot 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).
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Publication number: 20230074459Abstract: A lithium-air battery cell wherein the positive electrode includes a solid p-type electroactive organic catalyst lithium salt and a battery pack including several lithium-air battery cells. The use of a battery pack as a rechargeable battery for vehicles, such as electric vehicles and hybrid vehicles, electronic devices, and stationary power generating devices. Finally, a vehicle, an electronic device, and a stationary power generating device, including a battery pack.Type: ApplicationFiled: January 20, 2020Publication date: March 9, 2023Applicants: TOYOTA MOTOR EUROPE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE NANTESInventors: Steven RENAULT, Marco CARBONI, Fanny Jeanne Julie BARDE, Philippe POIZOT
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Publication number: 20200152984Abstract: The present invention relates to a method for using a battery which has an electrode that functions according to a mechanism of complexation of anions and within which the electrode active material is a polyviologen, characterized in that said polyviologen is a material that is insoluble in the electrolyte of said battery and in that the electrochemical conditions for use of said battery are adjusted so that its charge/discharge cycling process is established on the basis of the 1-electron redox reaction between the 1-electron oxidized form of the viologen units of said polyviologen, termed cation radical, and their totally reduced form, termed neutral form of the polyviologen.Type: ApplicationFiled: November 8, 2019Publication date: May 14, 2020Inventors: Thibaut GUTEL, Lionel DUBOIS, Vincent CADIOU, Philippe POIZOT
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Patent number: 10608277Abstract: The present invention relates to the field of organic lithium batteries having high energy and power densities. In particular, the present invention relates to an organic lithium battery comprising a positive electrode based on redox organic compounds and a porous separator made of biaxially oriented polypropylene, and to its process of manufacture.Type: GrantFiled: December 8, 2015Date of Patent: March 31, 2020Assignees: BLUE SOLUTIONS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Margaud Lecuyer, Marc Deschamps, Joël Gaubicher, Philippe Poizot, Dominique Guyomard, Bernard Lestriez
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Patent number: 10586986Abstract: Organic lithium batteries are provided having high energy and power densities with a positive electrode based on redox organic compounds and an electrolyte having a high concentration of lithium salt.Type: GrantFiled: November 30, 2015Date of Patent: March 10, 2020Assignees: BLUE SOLUTIONS, UNIVERSITE DE NANTES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFICInventors: Margaud Lecuyer, Marc Deschamps, Joël Gaubicher, Philippe Poizot, Dominique Guyomard, Bernard Lestriez
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Publication number: 20200028172Abstract: The invention relates to the use of a bis(pyridinium)-naphthalene diimide redox ionic compound as electrode active material, notably for an aqueous electrolyte battery, to a negative electrode comprising at least said bis(pyridinium)-naphthalene diimide redox ionic compound, to a battery, notably an aqueous electrolyte battery comprising said negative electrode, and to particular bis(pyridinium)-naphthalene diimide redox ionic compounds.Type: ApplicationFiled: March 7, 2018Publication date: January 23, 2020Inventors: Marc DESCHAMPS, Joel GAUBICHER, Dominique GUYOMARD, Philippe POIZOT, Margaud LECUYER, Sofia PERTICARARI, Fabrice ODOBEL
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Patent number: 10109860Abstract: The present invention relates to the field of lithium-sulphur batteries having high energy and power densities. In particular the present invention relates to a lithium-sulphur battery comprising a porous separator made of biaxially oriented polypropylene and to its process of manufacture.Type: GrantFiled: July 16, 2015Date of Patent: October 23, 2018Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, BLUE SOLUTIONS, UNIVERSITE DE NANTESInventors: Margaud Lecuyer, Marc Deschamps, Joël Gaubicher, Bernard Lestriez, Dominique Guyomard, Philippe Poizot
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Patent number: 9954227Abstract: The present invention relates to lithium secondary batteries and more specifically to positive electrode materials operating at potentials greater than 2.8 V vs. Li+/Li in nonaqueous electrochemical cells. In particular, the invention relates to crystalline nanometric carbon-free olivine-type LiFePO4 powders with enhanced electrochemical properties. A direct precipitation process is described for preparing crystalline LiFePO4powder, comprising the steps of: —providing a water-based mixture having at a pH between 6 and 10, containing a water-miscible boiling point elevation additive, and Li(I), Fe(II) and P(V) as precursor components; —heating said water-based mixture to a temperature less than or equal to its boiling point at atmospheric pressure, thereby precipitating crystalline LiFePO4 powder. An extremely fine 50 to 200 nm particle size is obtained, with a narrow distribution. The fine particle size accounts for excellent high-drain properties without applying any carbon coating.Type: GrantFiled: June 15, 2006Date of Patent: April 24, 2018Assignee: UmicoreInventors: Charles Delacourt, Philippe Poizot, Christian Masquelier
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Publication number: 20170352913Abstract: The present invention relates to the field of organic lithium batteries having high energy and power densities. In particular, the present invention relates to an organic lithium battery comprising a positive electrode based on redox organic compounds and a porous separator made of biaxially oriented polypropylene, and to its process of manufacture.Type: ApplicationFiled: December 8, 2015Publication date: December 7, 2017Applicants: BLUE SOLUTIONS, CENTRE NATIONAL DE LA RECHERCH SCIENTIFIQUE, UNIVERSITE DE NANATESInventors: Margaud LECUYER, Marc DESCHAMPS, Joël GAUBICHER, Philippe POIZOT, Dominique GUYOMARD, Bernard LESTRIEZ
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Publication number: 20170271677Abstract: The present invention relates to the field of organic lithium batteries having high energy and power densities. In particular, the present invention relates to an organic lithium battery comprising a positive electrode based on redox organic compounds and an electrolyte comprising a high concentration of lithium salt, and to its process of manufacture.Type: ApplicationFiled: November 30, 2015Publication date: September 21, 2017Inventors: Margaud LECUYER, Marc DESCHAMPS, Joël GAUBICHER, Philippe POIZOT, Dominique GUYOMARD, Bernard LESTRIEZ
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Publication number: 20170141397Abstract: The present invention relates to the field of lithium-sulphur batteries having high energy and power densities. In particular the present invention relates to a lithium-sulphur battery comprising a porous separator made of biaxially oriented polypropylene and to its process of manufacture.Type: ApplicationFiled: July 16, 2015Publication date: May 18, 2017Inventors: Margaud LECUYER, Marc DESCHAMPS, Joël GAUBICHER, Bernard LESTRIEZ, Dominique GUYOMARD, Philippe POIZOT
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Patent number: 9428387Abstract: The present invention relates to a process for preparing a carbon foam, from selected oxocarbons or pseudo-oxocarbons, at low temperature and to the use of the material obtained via the implementation of this process for the manufacture of a system for detecting light waves.Type: GrantFiled: July 26, 2012Date of Patent: August 30, 2016Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE PICARDIE JULES VERNEInventors: Philippe Poizot, Franck Dolhem, Jean-Noel Chotard
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Publication number: 20150056126Abstract: The present invention relates to a process for preparing a carbon foam, from selected oxocarbons or pseudo-oxocarbons, at low temperatures and to the use of the material obtained via the implementation of this process for the manufacture of a system for detecting light waves.Type: ApplicationFiled: July 26, 2012Publication date: February 26, 2015Applicants: UNIVERSITE DE PICARDIE JULES VERNE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Philippe Poizot, Frank Dolhem, Jean-Noel Chotard
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Publication number: 20080241690Abstract: The present invention relates to lithium secondary batteries and more specifically to positive electrode materials operating at potentials greater than 2.8 V vs. Li+/Li in nonaqueous electrochemical cells. In particular, the invention relates to crystalline nanometric carbon-free olivine-type LiFePO4 powders with enhanced electrochemical properties. A direct precipitation process is described for preparing crystalline LiFePO4powder, comprising the steps of: providing a water-based mixture having at a pH between 6 and 10, containing a water-miscible boiling point elevation additive, and Li(I), Fe(II) and P(V) as precursor components; heating said water-based mixture to a temperature less than or equal to its boiling point at atmospheric pressure, thereby precipitating crystalline LiFePO4 powder An extremely fine 50 to 200 nm particle size is obtained, with a narrow distribution. The fine particle size accounts for excellent high-drain properties without applying any carbon coating.Type: ApplicationFiled: June 15, 2006Publication date: October 2, 2008Inventors: Charles Delacourt, Philippe Poizot, Christian Masquelier
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Publication number: 20030203282Abstract: A rechargeable lithium battery cell comprises an electrode member comprising a nano-particle transition metal, Co, Cu, Fe, Ni, or Mn having particle size less than about 200 nanometres, which participates with lithium from a complementary electrode source and dissociated electrolyte anions in a reversible redox reaction providing substantial battery cell capacities which improve with continued operation of the cell.Type: ApplicationFiled: April 29, 2002Publication date: October 30, 2003Inventors: Sylvie Grugeon, Stephanne Laruelle, Philippe Poizot, Jean-Marie Tarascon