Patents by Inventor Michel B. Armand

Michel B. Armand 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).

  • Patent number: 7960057
    Abstract: A lithium-ion battery comprises a negative electrode, a positive electrode, and an electrolyte including a molten salt. The positive electrode comprises an electroactive compound including phosphorus, oxygen, lithium, and at least one other metal or semi-metal. The combination of such electrode compositions and a molten salt electrolyte provides a battery with very high thermal stability. Other ions, such as alkal metal ions, may be used in place of lithium ions for applications in other battery technologies.
    Type: Grant
    Filed: May 16, 2005
    Date of Patent: June 14, 2011
    Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Motor Corporation, Centre National de la Recherche Scientifique, University de Montreal
    Inventors: Wen Li, Keiichi Kohama, Michel B. Armand, Gerald Perron
  • Publication number: 20100310935
    Abstract: The invention relates to materials for use as electrodes in an alkali-ion secondary (rechargeable) battery, particularly a lithium-ion battery. The invention provides transition-metal compounds having the ordered-olivine, a modified olivine, or the rhombohedral NASICON structure and the polyanion (PO4)3? as at least one constituent for use as electrode material for alkali-ion rechargeable batteries.
    Type: Application
    Filed: August 20, 2010
    Publication date: December 9, 2010
    Inventors: Michel B. Armand, John B. Goodenough, Akshaya K. Padhi, Kirakadu S. Nanjundaswamy, Christian Masquelier
  • Patent number: 5256821
    Abstract: Method for the synthesis of sulfonylimidides having the formula M((RSO.sub.2).sub.2 N).sub.y, wherein M is a metal or an ammonium radical quaternary or not, the Rs, which may be identical or similar are organic monovalent radicals, particularly hydrocarbyles and preferably perfluorohydrocarbyles, in C.sub.1 to C.sub.12, and y is the valence of M. On the one hand, silazane component selected amongst the silazane compounds M(((R.sub.2).sub.3 Si).sub.2 N).sub.y or the associations of a silazane derivative A((R.sub.2).sub.3 Si).sub.2 N or a fluoride M.sub.1 F.sub.z of low cross-linking energy is reacted with, on the other hand, at least one sulfonic halogenite component consisting of a sulfonyl fluoride RSO.sub.2 F or in the association of a sulfonyl chloride RSO.sub.2 Cl with a fluoride M.sub.1 F.sub.z, M, R and y having the above-mentioned significations, M being selected amongst the Ms and being optionally identical to M, z being the valence of M.sub.1 and R.sub.2 representing an alkyl in C.sub.1 to C.sub.4.
    Type: Grant
    Filed: January 5, 1993
    Date of Patent: October 26, 1993
    Assignees: Societe Nationale Elf Aquitaine, Hydro-Quebec
    Inventor: Michel B. Armand
  • Patent number: 4923950
    Abstract: Composition based on derivatives of silica modified by organic groups, characterized in that said derivatives are amorphous solids having formula (I) SiO.sub.2-0.5(x+y) (Z.sup.1.sub.x (Z.sup.2).sub.y .multidot.(XA).sub.z, wherein Z.sup.1 is a group having formula (II), R.sup.1 being an alkylene having from 3 to 8 carbon atoms optionally interrupted by a heteroatomic group --NH--, R.sup.3 and R.sup.4 representing each --H or representing together a group --CH.dbd.CH--N.dbd.CH--, Z.sup.2 is a group --R.sup.2 --SO.sub.3 H, R.sup.2 being an alkylene having from 3 to 8 carbon atoms optionally interrupted by a heteroatomic group --NH--; XZ is an acid (case where X.dbd.H) or a salt (case where X.dbd.metal) soluble in water x is a number different from 0 and lower or equal to 1; z is a number which may vary from 0 to 0.
    Type: Grant
    Filed: April 28, 1988
    Date of Patent: May 8, 1990
    Assignee: Centre National de la Recherche Scientifique (CNRS)
    Inventors: Lucienne Ravaine, Michel B. Armand, Yves Charbouillot, Abdelkader Hammou
  • Patent number: 4833048
    Abstract: An novel metal-sulfur type cell operable at a temperature of 200.degree. C. or less with an energy density of 150 Whrs/Kg or better is disclosed characterized by an organo-sulfur cathode formed from an organic-sulfur compound having the general formula, in its charged state, of (R(S).sub.y).sub.n wherein y=1 to 6; n=2 to 20; and R is one or more different aliphatic or aromatic organic moieties having 1 to 20 carbon atoms, which may include one or more oxygen, sulfur, or nitrogen heteroatoms when R comprisises one of more aromatic rings, or one or more oxygen, sulfur, nitrogen, or fluorine atoms associtated with the chain when R comprises an aliphatic chain, wherein the aliphatic group may be linear or branched, saturated or unsaturated, and wherein either the aliphatic chain or the aromatic ring may have substituted groups thereon.
    Type: Grant
    Filed: March 31, 1988
    Date of Patent: May 23, 1989
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Lutgard C. Dejonghe, Steven J. Visco, Catherine C. Mailhe, Michel B. Armand
  • Patent number: 4556616
    Abstract: The invention relates to novel ionic compounds incorporable with polymers of which the monomer units comprise at least one hetero-atom, particularly oxygen or nitrogen, adapted to form bonds of the donor-acceptor type with the cation of the ionic compound, the solid solutions obtained being useful for forming the electrolyte of an electrochemical generator. These ionic compounds are represented by the formula[AlO.sub.4 (SiR.sub.3).sub.4 ].sup.- M.sup.+in which the groups R are aprotic hydrocarbon radicals, that is to say radicals which are non-donors of protons, and M is an alkali metal.
    Type: Grant
    Filed: June 1, 1983
    Date of Patent: December 3, 1985
    Assignees: Agencie Nationale de Valorisation de la Recherche, Societe Nationale Elf Aquitaine
    Inventors: Michel B. Armand, Fouzia El Kadiri Cherkaoui el Moursli
  • Patent number: 4542081
    Abstract: The invention relates to solid solutions constituted by one or several ionic compounds of the formula:(R--C.tbd.C).sub.4 X.sup.-, M.sup.+in which:X is a trivalent element liable of entering into 4-coordination;the groups R are aprotic hydrocarbon radicals, that is to say radicals which are non proton donors;M is an alkali metal;entirely dissolved within a macromolecular material formed at least in part by a polymer the monomer units of which include at least one hetero-atom, adapted to form bonds of the donor-acceptor type with the cation of the ionic compound.These solutions can be used for the constitution of solid electrolyte materials of electrochemical generators.
    Type: Grant
    Filed: June 1, 1983
    Date of Patent: September 17, 1985
    Assignees: Agence Nationale de Valorisation de la Recherche, Societe Nationale Elf Aquitaine
    Inventors: Michel B. Armand, Fouzia El Kadiri Cherkaoui El Moursli
  • Patent number: 4505997
    Abstract: The invention relates to novel ionic compounds which can be incorporated in polymers whose monomer units include at least one hetroatom, particularly oxygen or nitrogen adapted to form bonds of the donor-acceptor type with the cation of the ionic compound, the solid solutions obtained being utilizable to form the electrolyte of an electrochemical generator. These ionic compounds are represented by the formula(C.sub.n X.sub.2n+1 Y).sub.2 N.sup.-,M.sup.+in which : X is a halogen, n varies from 1 to 4, Y is a CO or SO.sub.2 group and M is an alkali metal.
    Type: Grant
    Filed: June 1, 1983
    Date of Patent: March 19, 1985
    Assignees: Agence Nationale de Valorisation de la Recherche (ANVAR), Societe Nationale Elf Aquitaine
    Inventors: Michel B. Armand, Fouzia El Kadiri Cherkaoui el Moursli
  • Patent number: 4359327
    Abstract: Gas adsorbents comprise at least one paracyclophane (or PCP) derivative, constituted by cyclic oligomers formed of mer-units which are interlinked so as to define a rigid structure with a substantially cylindrical intramolecular cavity. The dimensions of the cross-section of said cavity correspond substantially to those of the one or more types of gas molecules that it is desired to introduce therein.
    Type: Grant
    Filed: May 28, 1980
    Date of Patent: November 16, 1982
    Assignee: Agence Nationale de Valorisation de la Recherche
    Inventors: Michel B. Armand, Francis J. P. Jeanne
  • Patent number: 4303748
    Abstract: Invention concerning an electrochemical generator producing current, the electrolyte 2 of which is constituted by a solid solution of an alkali salt M.sup.+ X.sup.- within a plastic, macromolecular material, constituted by homo and/or copolymers essentially with non-cross-linked chains derived from one or several monomers comprising an heteroatom, notably oxygen or nitrogen. The negative electrode is constituted by a material liable to supply an alkali ion M.sup.+, and the positive electrode is liable to incorporate into itself the metal M corresponding to the ion M.sup.+.
    Type: Grant
    Filed: November 20, 1979
    Date of Patent: December 1, 1981
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Michel B. Armand, Michel Duclot
  • Patent number: 4041220
    Abstract: New mixed conductors resulting from the insertion of an alkali element in the lattice of an intercalation compound of graphite and of a product M'.sub.y X.sub.z : M' is a transition metal such as Ti, V, Cr, Mn, Fe, Mo; X is a non-metallic electronegative atom such as O, S, F, Cl or Br; y and z have the values of the indices in said product M'.sub.y X.sub.z. These mixed compounds are useful for the manufacture of positive electrodes of electrochemical generators.
    Type: Grant
    Filed: January 28, 1976
    Date of Patent: August 9, 1977
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventor: Michel B. Armand
  • Patent number: 3956194
    Abstract: New mixed conductors resulting from the insertion of an alkali element in the lattice of an intercalation compound of graphite and of a product M'.sub.y X.sub.z : M' is a transition metal such as Ti, V, Cr, Mn, Fe, Mo; X is a nonmetallic electronegative atom such as O, S, F, Cl or Br; y and z have the values of the indices in said product M'.sub.y X.sub.z. These mixed compounds are useful for the manufacture of positive electrodes of electrochemical generators.
    Type: Grant
    Filed: August 17, 1973
    Date of Patent: May 11, 1976
    Inventor: Michel B. Armand