Patents Assigned to Phostech Lithium Inc.
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Publication number: 20130095390Abstract: A material C-AxM(XO4)y that is of particles of a compound of the formula AxM(XO4)y, wherein said particles include a carbon deposit deposited by means of pyrolysis on at least a portion of the surface thereof, and where: A is Li alone or partially replaced by at most 10 atomic % of Na or K; M is Fe(II), or Mn(II), or mixtures thereof alone or partially replaced by at most 30 atomic % of one or more metals selected from Mn, Ni and Co and/or at most 5% of Fe(III); XO4 is PO4 alone or partially replaced by at most 10 molar % of at least one group selected from SO4, SiO4 and MoO4; and where said material has a calcium impurity content of lower than about 1000 ppm.Type: ApplicationFiled: December 4, 2012Publication date: April 18, 2013Applicant: PHOSTECH LITHIUM INC.Inventor: PHOSTECH LITHIUM INC.
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Publication number: 20130011739Abstract: 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.Type: ApplicationFiled: September 14, 2012Publication date: January 10, 2013Applicants: UNIVERSITÉ DE MONTREAL, PHOSTECH LITHIUM INC., CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: LAURENT GAUTHIER, Michel Gauthier, Donald Lavoie, Christophe Michot, Nathalie Ravet
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Publication number: 20120328774Abstract: The present invention relates to the field of electrode materials, and more specifically, to a carbon-deposited alkali metal oxyanion electrode material as well as to a process for preparing same. More particularly, the process for preparing the carbon-deposited alkali metal oxyanion electrode material comprises a dry milling step of precursors of the alkali metal oxyanion electrode material at an energy sufficient to cause the precursors to agglomerate into strong agglomerates, and a heating step comprising pyrolysis of an organic source to obtain the carbon-deposited alkali metal oxyanion electrode material.Type: ApplicationFiled: June 22, 2012Publication date: December 27, 2012Applicant: PHOSTECH LITHIUM INC.Inventors: Guoxian Liang, Christophe Michot, Jasmin Dufour
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Patent number: 8273481Abstract: 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.Type: GrantFiled: August 25, 2011Date of Patent: September 25, 2012Assignees: Universitéde Montréal, Centre National de la Recherche Scientifique, Phostech Lithium Inc.Inventors: Laurent Gauthier, Michel Gauthier, Donald Lavoie, Christophe Michot, Nathalie Ravet
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Publication number: 20120232285Abstract: The invention relates to triazole salts, to their preparation and to applications thereof. The salts have at least one anionic triazolium group which carries at least one chlorosulphonyl, fluorosulphonyl or alkoxyfluorosulphonyl group, each of the anionic groups being combined with a proton or a cation that has a valency of less than or equal to 4. The salts are useful as synthesis reagents, as chemical-reaction or polymerization catalysts, and as ion-conducting materials for electrochemical generators, supercapacitors and electrochromic devices.Type: ApplicationFiled: May 23, 2012Publication date: September 13, 2012Applicants: Universite De Montreal, Phostech Lithium Inc.Inventor: Christophe MICHOT
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Publication number: 20120138867Abstract: The present invention relates to a process for the synthesis of a carbon-deposited alkali metal oxyanion cathode material comprising particles, wherein said particles carry, on at least a portion of the particle surface, carbon deposited by pyrolysis, said process comprising a dry high-energy milling step performed on precursors of said carbon-deposited alkali metal oxyanion prior to a solid-state thermal reaction.Type: ApplicationFiled: November 11, 2011Publication date: June 7, 2012Applicant: PHOSTECH LITHIUM INC.Inventors: Guoxian LIANG, Jasmin Dufour, Michael Holzapfel, Christophe Michot
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Publication number: 20120136136Abstract: A process to induce polymerization of an organic electronically conductive polymer in the presence of a partially delithiated alkali metal phosphate which acts as the polymerization initiator.Type: ApplicationFiled: June 1, 2010Publication date: May 31, 2012Applicants: UNIVERSITE DU QUEBEC A MONTREAL, PHOSTECH LITHIUM INCInventors: Steen Brian Schougaard, Michel Gauthier, Christian Kuss, David Lepage, Guoxian Liang, Christophe Michot
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Patent number: 8133618Abstract: 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.Type: GrantFiled: April 3, 2009Date of Patent: March 13, 2012Assignees: Universite de Montreal, Centre National de la Recherche Scientifique, Phostech Lithium Inc.Inventors: Laurent Gauthier, Michel Gauthier, Donald Lavoie, Christophe Michot, Nathalie Ravet
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Publication number: 20120028121Abstract: 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.Type: ApplicationFiled: August 25, 2011Publication date: February 2, 2012Applicants: UNIVERSITE DE MONTREAL, PHOSTECH LITHIUM INC., CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Laurent GAUTHIER, Michel Gauthier, Donald Lavoie, Christophe Michot, Nathalie Ravet
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Publication number: 20120025149Abstract: A process for preparing a formulation comprising a carbon-deposited lithium metal phosphate, as precursor of a lithium ion battery electrode coating slurry.Type: ApplicationFiled: July 15, 2011Publication date: February 2, 2012Applicant: PHOSTECH LITHIUM INC.Inventors: Guoxian LIANG, Jasmin DUFOUR
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Patent number: 8048565Abstract: 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.Type: GrantFiled: November 23, 2010Date of Patent: November 1, 2011Assignees: Universite de Montreal, Centre National de la Recherche Scientifique, Phostech Lithium Inc.Inventors: Laurent Gauthier, Michel Gauthier, Donald Lavoie, Christophe Michot, Nathalie Ravet
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Publication number: 20110210293Abstract: Process for improving the electrochemical performance of an alkali metal oxyanion electrode material having a pyrolitic carbon deposit thereon, comprising a heat treatment under a humidified atmosphere where the heat treatment is performed at a temperature in the range of about 300° C. to about 950° C.Type: ApplicationFiled: December 17, 2010Publication date: September 1, 2011Applicant: Phostech Lithium Inc.Inventors: Guoxian Liang, Jasmin Dufour, Michel Gauthier, Nathalie Ravet, Denis Geoffroy
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Publication number: 20110178306Abstract: The invention relates to triazole salts, to their preparation and to applications thereof. The salts have at least one anionic triazolium group which carries at least one chlorosulphonyl, fluorosulphonyl or alkoxyfluorosulphonyl group, each of the anionic groups being combined with a proton or a cation that has a valency of less than or equal to 4. The salts are useful as synthesis reagents, as chemical-reaction or polymerization catalysts, and as ion-conducting materials for electrochemical generators, supercapacitors and electrochromic devices.Type: ApplicationFiled: April 4, 2011Publication date: July 21, 2011Applicants: Phostech Lithium Inc., Universite De MontrealInventor: Christophe MICHOT
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Patent number: 7919629Abstract: The invention relates to triazole salts, to their preparation and to applications thereof. The salts have at least one anionic triazolium group which carries at least one chlorosulphonyl, fluorosulphonyl or alkoxyfluorosulphonyl group, each of the anionic groups being combined with a proton or a cation that has a valency of less than or equal to 4. The salts are useful as synthesis reagents, as chemical-reaction or polymerization catalysts, and as ion-conducting materials for electrochemical generators, supercapacitors and electrochromic devices.Type: GrantFiled: December 12, 2006Date of Patent: April 5, 2011Assignees: Phostech Lithium Inc., Universite de MontrealInventor: Christophe Michot
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Publication number: 20110062380Abstract: 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.Type: ApplicationFiled: November 23, 2010Publication date: March 17, 2011Applicants: UNIVERSITE DE MONTREAL, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, PHOSTECH LITHIUM INC.Inventors: Laurent Gauthier, Michel Gauthier, Donald Lavoie, Christophe Michot, Nathalie Ravet
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Publication number: 20100327223Abstract: The invention is related to a cathode material comprising particles having a lithium metal phosphate core and a pyrolytic carbon deposit, said particles having a synthetic multimodal particle size distribution comprising at least one fraction of micron size particles and one fraction of submicron size particles, said lithium metal phosphate having formula LiMPO4 wherein M is at least Fe or Mn. Said material is prepared by method comprising the steps of providing starting micron sized particles and starting submicron sized particles of at least one lithium metal phosphate or of precursors of a lithium metal phosphate; mixing by mechanical means said starting particles; making a pyrolytic carbon deposit on the lithium metal phosphate starting particles before or after the mixing step, and on their metal precursor before or after mixing the particles; optionally adding carbon black, graphite powder or fibers to the said lithium metal phosphate particles before the mechanical mixing.Type: ApplicationFiled: June 30, 2010Publication date: December 30, 2010Applicant: Phostech Lithium Inc.Inventors: Karim ZAGHIB, Patrick Charest, Abdelbast Guerfi, Guoxian Liang
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Publication number: 20090305132Abstract: 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 LiiMmM?m?ZzOoNnFf oxide, wherein M is at least one transition metal, M? is at least one metal other than a transition metal, Z is at least one non-metal, coefficients i, m, m?, z, o, n and f are selected in such a way that the complex oxide is electrically neutral, with i=0, m>0, z=0, m?=0, o>0, n=0 and f=0. At least part of the complex oxide particle or particulate aggregate surface is coated with a carbon layer bound by chemical bonds and/or physical bonds to the carbon. The complex oxide has formula; the carbon has covalently bonded functional groups GF.Type: ApplicationFiled: May 5, 2006Publication date: December 10, 2009Applicant: PHOSTECH LITHIUM INC.Inventors: Michel Gauthier, Christophe Michot
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Publication number: 20090292105Abstract: The invention relates to triazole salts, to their preparation and to applications thereof. The salts have at least one anionic triazolium group which carries at least one chlorosulphonyl, fluorosulphonyl or alkoxyfluorosulphonyl group, each of the anionic groups being combined with a proton or a cation that has a valency of less than or equal to 4. The salts are useful as synthesis reagents, as chemical-reaction or polymerization catalysts, and as ion-conducting materials for electrochemical generators, supercapacitors and electrochromic devices.Type: ApplicationFiled: December 12, 2006Publication date: November 26, 2009Applicant: Phostech Lithium Inc.Inventor: Chirstophe Michot
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Publication number: 20090189114Abstract: 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.Type: ApplicationFiled: April 3, 2009Publication date: July 30, 2009Applicants: UNIVERSITE DE MONTREAL, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, PHOSTECH LITHIUM INC.Inventors: Laurent GAUTHIER, Michel GAUTHIER, Donald LAVOIE, Christophe MICHOT, Nathalie RAVET
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Patent number: 7534408Abstract: The invention relates to a process for preparing an at least partially lithiated transition metal oxyanion-based lithium-ion reversible electrode material, which comprises providing a precursor of said lithium-ion reversible electrode material, heating said precursor, melting same at a temperature sufficient to produce a melt comprising 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. The invention also relates to lithiated or partially lithiated oxyanion-based-lithium-ion reversible electrode materials obtained by the aforesaid process.Type: GrantFiled: December 22, 2004Date of Patent: May 19, 2009Assignees: Universite de Montreal, Centre National de la Recherche Scientifique, Phostech Lithium Inc.Inventors: Laurent Gauthier, Michel Gauthier, Donald Lavoie, Christophe Michot, Nathalie Ravet