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Michel Gauthier, La Prairie CA

Michel Gauthier, La Prairie CA

Patent application numberDescriptionPublished
20080251754NOVEL MATERIALS USEFUL AS ELECTROLYTIC SOLUTES - The invention concerns novel ionic compounds with low melting point whereof the onium type cation having at least a heteroatom such as N, O, S or P bearing the positive charge and whereof the anion includes, wholly or partially, at least an ion imidide such as (FX10-16-2008
20080285211Li4Ti5O12,Li(4-alpha)ZalphaTi5O12 or Li4ZbetaTi(5-beta)O12 particles processes for obtaining same and use as electrochemical generators - Synthesis process for new particles of Li11-20-2008
20090123845Electrolyte purification method, electrolytes and generators thus obtained and use of same - Process for the purification of an ionic electrolyte comprising at least one alkali metal salt, the process having at least one stage in which particles of at least one calcium salt are brought into contact. The process makes it possible to obtain electrolytes characterized in particular by a particularly low water content. The corresponding electrochemical generators which incorporate the electrolyte as constituent component are characterized by a noteworthy stability and are particularly safe.05-14-2009
20090189114PROCESS FOR PREPARING ELECTROACTIVE INSERTION COMPOUNDS AND ELECTRODE MATERIALS OBTAINED THEREFROM - A process for preparing an at least partially lithiated transition metal oxyanion-based lithium-ion reversible electrode material, which includes providing a precursor of said lithium-ion reversible electrode material, heating said precursor, melting same at a temperature sufficient to produce a melt including an oxyanion containing liquid phase, cooling said melt under conditions to induce solidification thereof and obtain a solid electrode that is capable of reversible lithium ion deinsertion/insertion cycles for use in a lithium battery. Also, lithiated or partially lithiated oxyanion-based-lithium-ion reversible electrode materials obtained by the aforesaid process.07-30-2009
20090280410MULTILAYER MATERIAL BASED ON ACTIVE LITHIUM, METHOD OF PREPARATION AND APPLICATIONS IN ELECTROCHEMICAL GENERATORS - A method for preparing a multilayer material based on active lithium, by depositing a film of active lithium on a protective layer at a sufficient speed so that substantially no oxidation of the lithium occurs, and/or during a sufficient time for the adhesion of the lithium to develop after contact with the protective layer. The multilayer material, when incorporated in an electrochemical battery as an anode, has excellent impedance stability and no formation of dendrites during the cycling. Batteries where the anode is the multilayer material are particularly efficient in terms of their coulomb efficiency.11-12-2009
20090305132Electrode material including a complex lithium/transition metal oxide - The invention relates to an electrode material and a composite electrode including same. The electrode material consists of particles or particulate aggregates of a complex Li12-10-2009
20100065787METHOD FOR SYNTHESIS OF CARBON-COATED REDOX MATERIALS WITH CONTROLLED SIZE - A method for the synthesis of compounds of the formula C—Li03-18-2010
20110062380PROCESS FOR PREPARING ELECTROACTIVE INSERTION COMPOUNDS AND ELECTRODE MATERIALS OBTAINED THEREFROM - A process for preparing an at least partially lithiated transition metal oxyanion-based lithium−ion reversible electrode material, which includes providing a precursor of said lithium−ion reversible electrode material, heating said precursor, melting same at a temperature sufficient to produce a melt including an oxyanion containing liquid phase, cooling said melt under conditions to induce solidification thereof and obtain a solid electrode that is capable of reversible lithium ion deinsertion/insertion cycles for use in a lithium battery. Also, lithiated or partially lithiated oxyanion-based-lithium−ion reversible electrode materials obtained by the aforesaid process.03-17-2011
20110160460NOVEL MATERIALS USEFUL AS ELECTROLYTIC SOLUTES - The invention concerns novel ionic compounds with low melting point whereof the onium type cation having at least a heteroatom such as N, 0, S or P bearing the positive charge and whereof the anion includes, wholly or partially, at least an ion imidide such as (FXI0)N—(OX2F) wherein X1 and X2 are identical or different and comprise SO or PF, and their use as solvent in electrochemical devices. Said composition comprises a salt wherein the anionic charge is delocalised, and can be used, inter alia, as electrolyte.06-30-2011

Patent applications by Michel Gauthier, La Prairie CA