Patents by Inventor Guoxian Liang

Guoxian Liang 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: 20240154087
    Abstract: Provided herein is a method of producing cathode materials. The method can include heating precursors in a first vessel to a first temperature to form heated precursors. The first temperature can be below a melting point of a solid including a compound formed from the precursors. The method can include transferring the heated precursors from the first vessel to a second vessel. The method can include heating the heated precursors to a second temperature to form a liquid. The second temperature can be at or above the melting point of the solid including the compound formed from the precursors.
    Type: Application
    Filed: October 24, 2023
    Publication date: May 9, 2024
    Applicant: Rivian IP Holdings, LLC
    Inventors: Majid Talebiesfandarani, Guoxian Liang, Victor Ken Prajapati
  • Patent number: 11973225
    Abstract: Described are embodiments of a lithium metal phosphate production methods and systems. The systems and methods can include combining lithium extraction from spodumene, lithium recycling from lithium ion battery (“LIB”) black mass, and/or lithium metal phosphate synthesis from metal phosphates.
    Type: Grant
    Filed: October 4, 2022
    Date of Patent: April 30, 2024
    Assignee: Rivian IP Holdings, LLC
    Inventors: Guoxian Liang, Majid Talebiesfandarani, Cary Michael Hayner, Ki Tae Park, Victor Prajapati
  • Publication number: 20240113295
    Abstract: Described are embodiments of a lithium metal phosphate production methods and systems. The systems and methods can include combining lithium extraction from spodumene, lithium recycling from lithium ion battery (“LIB”) black mass, and/or lithium metal phosphate synthesis from metal phosphates.
    Type: Application
    Filed: October 4, 2022
    Publication date: April 4, 2024
    Inventors: Guoxian LIANG, Majid TALEBIESFANDARANI, Cary Michael HAYNER, Ki Tae PARK, Victor PRAJAPATI
  • Patent number: 10707479
    Abstract: A Lithium-transition-metal-phosphate compound of formula Li0.9+xFe1-yMyPO4) in the form of secondary particles made of agglomerates of spherical primary particles wherein the primary particles have a size in the range of 0.02-2 pm and the secondary particles a mean size in the range of 10-40 pm and a BET surface of 16-40 m2/g, a process for its manufacture and the use thereof.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: July 7, 2020
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Rainald Forbert, Gerhard Nuspl, Nicolas Tran, Guoxian Liang
  • Patent number: 10377632
    Abstract: There is provided a process for producing LiMXO4, comprising the steps of reacting a source of lithium, a source of M, and a source of X together, in a melted state at a reaction temperature between 900 to 1450 C, in the presence of an excess of (A) a solid-solid reducing couple having an oxygen partial process at equilibrium (pO2) comprised between 10?8 and 10?15 atm at said reaction temperature according to an Ellingham-Richardson diagram for oxides, or (B) one component of the solid-solid reducing couple together with a gas-gas reducing couple having an oxygen partial pressure equilibrium (pO2) between 10?8 and 10?15 atm at said reaction temperature according to an Ellingham-Richardson diagram of oxides, and under thermic equilibrium and thermodynamic equilibrium. There is also provided a LiMXO4 melt-solidified product free from off-composition impurities.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: August 13, 2019
    Assignees: JOHNSON MATTHEY PUBLIC LIMITED COMPANY, UNIVERSITÉ DE MONTRÉAL, LA CORPORATION DE L'ÉCOLE POLYTECHNIQUE DE MONTRÉAL
    Inventors: Michel Gauthier, Patrice Chartrand, Majid Talebi-Esfandarani, Pierre Sauriol, Mickael Dollé, Jasmin Dufour, Guoxian Liang
  • Patent number: 10329154
    Abstract: A method for preparing an electrode material, said material comprising complex oxide particles having a non-powdery conductive carbon deposit on at least part of their surface, said method comprising: grinding into nanometer size complex oxide particles or particles of complex oxide precursors, wherein the grinding is performed in a bead mill on particles dispersed in a carrier solvent, adding an organic carbon precursor to the oxide particles or oxide precursor particles before, during or after said grinding, and pyrolysing the mixture thus obtained, selecting the size of the particles to grind, the size of the beads used to grind, and the size of the resulting particles such that: 0.004<MS(SP)/MS(B)<0.12 and 0.0025<MS(FP)/MS(SP)<0.25, wherein MS(SP) represents the mean size diameter of the particles before grinding, MS(FP) represents the mean size diameter of the particles after grinding, and MS(B) is the mean size diameter of the beads.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: June 25, 2019
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Guoxian Liang, Patrick Charest, Michel Gauthier, Abdelbast Guerfi, Christophe Michot, Karim Zaghib
  • Patent number: 9871245
    Abstract: There is provided a process for preparing a crystalline electrode material, the process comprising: providing a liquid bath comprising the electrode material in a melted state; and introducing a precursor of the electrode material into the liquid bath, wherein the electrode material comprises lithium, a metal and phosphate. There is also provided a crystalline electrode material, comprising lithium substituted by less than 0.1 atomic of Na or K; Fe and/or Mn, substituted by less than 0.1 atomic ratio of: (a) Mg, Ca, Al and B, (b) Nb, Zr, Mo, V and Cr, (c) Fe(III), or (d) any combinations thereof; and PO4, substituted by less than 20% atomic weight of an oxyanion selected from SO4, SiO4, BO4, P2O7, and any combinations thereof, the material being in the form of particles having a non-carbon and non-olivine phase on at least a portion of the surface thereof.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: January 16, 2018
    Assignees: Johnson Matthey Public Limited Company, Universite de Montreal, La Corporation de L'Ecole Polytechnique de Montreal
    Inventors: Michel Gauthier, Dean MacNeil, Joseph Wontcheu, Patrice Chartrand, Guoxian Liang
  • Patent number: 9755222
    Abstract: An alkali metal oxyanion cathode material comprising particles, where the particles carry, on at least a portion of the particle surface, carbon deposit by pyrolysis is described. The particles have the general formula A:M:M?:XO4 where the average valency of M is +2 or greater; A is at least one alkali metal selected from Li, Na and K; M is at least Fe and/or Mn; and M? is a metal of valency of 2+ or more.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: September 5, 2017
    Assignee: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
    Inventors: Guoxian Liang, Steeve Rousselot, Jasmin Dufour
  • Publication number: 20170210624
    Abstract: There is provided a process for producing LiMXO4, comprising the steps of reacting a source of lithium, a source of M, and a source of X together, in a melted state at a reaction temperature between 900 to 1450 C, in the presence of an excess of (A) a solid-solid reducing couple having an oxygen partial process at equilibrium (pO2) comprised between 10?8 and 10?15 atm at said reaction temperature according to an Ellingham-Richardson diagram for oxides, or (B) one component of the solid-solid reducing couple together with a gas-gas reducing couple having an oxygen partial pressure equilibrium (pO2) between 10?8 and 10?15 atm at said reaction temperature according to an Ellingham-Richardson diagram of oxides, and under thermic equilibrium and thermodynamic equilibrium. There is also provided a LiMXO4 melt-solidified product free from off-composition impurities.
    Type: Application
    Filed: May 26, 2015
    Publication date: July 27, 2017
    Applicants: JOHNSON MATTHEY PUBLIC LIMITED COMPANY, UNIVERSITÉ DE MONTRÉAL, LA CORPORATION DE LÉECOLE POLYTECHNIQUE DE MONTRÉAL
    Inventors: Michel GAUTHIER, Patrice CHARTRAND, Majid TALEBI-ESFANDARANI, Pierre SAURIOL, Mickael DOLLÉ, Jasmin DUFOUR, Guoxian LIANG
  • Patent number: 9385364
    Abstract: 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: Grant
    Filed: August 28, 2014
    Date of Patent: July 5, 2016
    Assignee: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
    Inventors: Guoxian Liang, Jasmin Dufour, Michael Holzapfel, Christophe Michot
  • Publication number: 20160126539
    Abstract: The invention relates to a process for the preparation of a carbon-treated complex oxide having a very low water content and to its use as cathode material. The carbon-treated complex oxide is composed of particles of a compound AMXO4 having an olivine structure which carry, on at least a portion of their surface, a film of carbon deposited by pyrolysis. A represents Li, alone or partially replaced by at most 10% as atoms of Na or K. M represents Fe(II), alone or partially replaced by at most 50% as atoms of one or more other metals chosen from Mn, Ni and Co, and/or by at most 10% as atoms of one or more aliovalent or isovalent metals other than Mn, Ni or Co, and/or by at most 5% as atoms of Fe(III). X4 represents PO4, alone or partially replaced by at most 10 mol % of SO4 and SiO4. Said material has a water content <1000 ppm.
    Type: Application
    Filed: January 13, 2016
    Publication date: May 5, 2016
    Inventors: Nathalie RAVET, Michel Gauthier, Thorsten Lahrs, Guoxian Liang, Christophe Michot
  • Patent number: 9269950
    Abstract: 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: Grant
    Filed: December 4, 2012
    Date of Patent: February 23, 2016
    Assignees: JOHNSON MATTHEY PUBLIC LIMITED COMPANY, BATHIUM CANADA INC.
    Inventors: Denis Geoffroy, Guoxian Liang, Michel Gauthier, Thorsten Lahrs, Nathalie Ravet, Michel Parent, Alain Vallee, Patrick Leblanc, Frederic Cotton
  • Publication number: 20160036036
    Abstract: An alkali metal oxyanion cathode material comprising particles, where the particles carry, on at least a portion of the particle surface, carbon deposit by pyrolysis is described. The particles have the general formula A: M:M?:X04 where the average valency of M is ?2 or greater; A is at least one alkali metal selected from Li, Na and K; M is at least Fe and/or Mn; and M? is a metal of valency of 2+ or more.
    Type: Application
    Filed: March 7, 2014
    Publication date: February 4, 2016
    Inventors: Guoxian LIANG, Steeve ROUSSELOT, Jasmin DUFOUR
  • Publication number: 20160036042
    Abstract: A Lithium-transition-metal-phosphate compound of formula Li0.9+xFe1-yMyPO4) in the form of secondary particles made of agglomerates of spherical primary particles wherein the primary particles have a size in the range of 0.02-2 pm and the secondary particles a mean size in the range of 10-40 pm and a BET surface of 16-40 m2/g, a process for its manufacture and the use thereof.
    Type: Application
    Filed: March 14, 2014
    Publication date: February 4, 2016
    Inventors: Rainald FORBERT, Gerhard NUSPL, Nicolas TRAN, Guoxian LIANG
  • Patent number: 9242871
    Abstract: The present invention relates to a nanoparticulate composition comprising nanoparticles with a particle-size distribution of d90?10 ?m, and optionally a surface-active agent. The present invention further relates to a method for the production of such a nanoparticulate composition.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: January 26, 2016
    Assignee: Johnson Matthey PLC
    Inventors: Michael Holzapfel, Andreas Laumann, Peter Bauer, Christian Vogler, Guoxian Liang
  • Publication number: 20150158728
    Abstract: A method for preparing an electrode material, said material comprising complex oxide particles having a non-powdery conductive carbon deposit on at least part of their surface, said method comprising: grinding into nanometer size complex oxide particles or particles of complex oxide precursors, wherein the grinding is performed in a bead mill on particles dispersed in a carrier solvent, adding an organic carbon precursor to the oxide particles or oxide precursor particles before, during or after said grinding, and pyrolysing the mixture thus obtained, selecting the size of the particles to grind, the size of the beads used to grind, and the size of the resulting particles such that: 0.004 <MS(SP)/MS(B)<0.12 and 0.0025<MS(FP)/MS(SP)<0.25, wherein MS(SP) represents the mean size diameter of the particles before grinding, MS(FP) represents the mean size diameter of the particles after grinding, and MS(B) is the mean size diameter of the beads.
    Type: Application
    Filed: December 11, 2014
    Publication date: June 11, 2015
    Inventors: Guoxian LIANG, Patrick CHAREST, Michel GAUTHIER, Abdelbast GUERFI, Christophe MICHOT, Karim ZAGHIB
  • Publication number: 20150118561
    Abstract: There is provided a process for preparing a crystalline electrode material, the process comprising: providing a liquid bath comprising the electrode material in a melted state; and introducing a precursor of the electrode material into the liquid bath, wherein the electrode material comprises lithium, a metal and phosphate. There is also provided a crystalline electrode material, comprising lithium substituted by less than 0.1 atomic of Na or K; Fe and/or Mn, substituted by less than 0.1 atomic ratio of: (a) Mg, Ca, Al and B, (b) Nb, Zr, Mo, V and Cr, (c) Fe(III), or (d) any combinations thereof; and PO4, substituted by less than 20% atomic weight of an oxyanion selected from SO4, SiO4, BO4, P2O7, and any combinations thereof, the material being in the form of particles having a non-carbon and non-olivine phase on at least a portion of the surface thereof.
    Type: Application
    Filed: May 28, 2013
    Publication date: April 30, 2015
    Inventors: Michel Gauthier, Dean MacNeil, Joseph Wontcheu, Patrice Chartrand, Guoxian Liang
  • Publication number: 20140370186
    Abstract: 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: Application
    Filed: August 28, 2014
    Publication date: December 18, 2014
    Inventors: Guoxian LIANG, Jasmin DUFOUR, Michael HOLZAPFEL, Christophe MICHOT
  • Publication number: 20140272588
    Abstract: An alkali metal oxyanion cathode material comprising particles, where the particles carry, on at least a portion of the particle surface, carbon deposit by pyrolysis is described. The particles have the general formula A:M:M?:XO4 where the average valency of M is +2 or greater; A is at least one alkali metal selected from Li, Na and K; M is at least Fe and/or Mn; and M? is a metal of valency of 2+ or more.
    Type: Application
    Filed: March 6, 2014
    Publication date: September 18, 2014
    Applicant: CLARIANT CORPORATION
    Inventors: Guoxian Liang, Steeve Rousselot, Jasmin Dufour
  • Publication number: 20140147586
    Abstract: The present invention relates to a process for making an alkali metal oxyanion comprising iron. In one aspect of the invention, hydrothermal methods are used with a nanoscale iron precursor in order to provide desirably low particle size and high purity and crystallinity.
    Type: Application
    Filed: November 20, 2013
    Publication date: May 29, 2014
    Applicants: Universite de Montreal, Clariant (Canada) Inc.
    Inventors: Guoxian Liang, Dean MacNeil, Cheng Lifeng