Patents by Inventor Chi Paik

Chi Paik 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: 20240274813
    Abstract: A positive electrode active material includes a compound represented by formula 1: wherein: M is Co or Cr; 2<average oxidation state of Ni ion<2.27; and 0<x<0.1.
    Type: Application
    Filed: February 3, 2023
    Publication date: August 15, 2024
    Applicant: Ford Global Technologies, LLC
    Inventors: Eunsung LEE, Chi PAIK, Robert J. KUDLA, Mary FREDRICK, Yisun CHENG, Jason Aaron LUPESCU
  • Publication number: 20240274809
    Abstract: A positive electrode active material includes a compound represented by formula 1: wherein: (Li+/[M3+ & Ni2+] substitution for Mn3+·M3+=Co3+ or Cr3+) 1 < 1.333 - 0.667 x - z - a < 1.333 0 < x - 0.5 y + z < 0.5 0 < y + a < 0.
    Type: Application
    Filed: February 3, 2023
    Publication date: August 15, 2024
    Applicant: Ford Global Technologies, LLC
    Inventors: Eunsung LEE, Chi PAIK, Robert J. KUDLA, Mary FREDERICK, Yisun CHENG, Jason Aaron LUPESCU
  • Publication number: 20240266523
    Abstract: A positive electrode active material includes a compound represented by formula 1: Li 1.1 ? Mn 0.52 ? Ni 0 . 3 ? 8 - x ? M x ? O 2 ( 1 ) wherein: M is Co or Cr; 2<average oxidation state of Ni ion<2.15; and 0<x<0.06.
    Type: Application
    Filed: February 3, 2023
    Publication date: August 8, 2024
    Applicant: Ford Global Technologies, LLC
    Inventors: Eunsung LEE, Chi PAIK, Robert J. KUDLA, Mary FREDERICK, Jason Aaron LUPESCU, Yisun Aaron CHENG
  • Publication number: 20240063397
    Abstract: A positive electrode material includes a plurality of particles composed of a positive electrode active material and a passivating layer disposed over each particle of the plurality of particles. The passivating layer is thermally insulating and lithium-ion conducting wherein the passivating layer is composed of a carbonate-phosphate composite.
    Type: Application
    Filed: August 22, 2022
    Publication date: February 22, 2024
    Inventors: Kyungjin PARK, Eunsung LEE, Brian UTLEY, Chi PAIK
  • Publication number: 20240063434
    Abstract: A method for forming a solid electrolyte interface on a lithium-ion battery electrode is provided. The method includes a step of introducing a first quantity of a first electrolyte composition into a container. The container includes at least one lithium-ion battery cell and the first electrolyte composition including ethylene carbonate. The lithium-ion battery cell is cycled for at least one charging cycle such that one or more solid electrolyte interfaces are formed. A second electrolyte composition is introduced into the container to form a final electrolyte composition, the second electrolyte composition including propylene carbonate.
    Type: Application
    Filed: August 22, 2022
    Publication date: February 22, 2024
    Inventors: Feng LI, Andrew TIPTON, Chi PAIK
  • Publication number: 20240063419
    Abstract: A coating system for a solid-state battery includes a feeder for a first substrate foil, and an electrolyte dispenser between two electrode dispensers. The first electrode dispenser has a first mixture of a first solid active material and a first solid electrolyte therein, and deposits a first electrode layer on the foil. The electrolyte dispenser deposits an electrolyte layer on the first electrode layer. The second electrode dispenser has a second mixture of second solid active material and a second solid electrolyte, and deposits a second electrode layer on the electrolyte layer. A roller provides a second substrate foil downstream of the second electrode dispenser on the second electrode layer to form a layered structure. The system also includes drums for press rolling the layered structure to form a solid-state battery, with the layers being continuously deposited.
    Type: Application
    Filed: August 17, 2022
    Publication date: February 22, 2024
    Inventors: Patrick PIETRASZ, Gunho KWAK, Chi PAIK
  • Publication number: 20240055599
    Abstract: A positive electrode for a lithium-ion battery includes a current collector a positive electrode active layer disposed over the current collector. The positive electrode active layer is composed of a positive electrode composition includes a first positive electrode active material that has been aged for a first predetermined time period.
    Type: Application
    Filed: August 12, 2022
    Publication date: February 15, 2024
    Inventors: Kyungjin Park, Brian Utley, Mary Frederick, Daewon Han, Chi Paik
  • Publication number: 20240055574
    Abstract: A method for forming one or more layers of a lithium-ion battery includes a step of sequentially depositing a wet coating and a free-standing material layer onto a moving substrate to form a first bilayer on the substrate. The first bilayer including a wet coating-derived layer and the free-standing material layer. The first bilayer is heat roll pressed to form a second bilayer in which the wet coating-derived layer is at least partially dried and adhered to the free-standing material layer.
    Type: Application
    Filed: August 12, 2022
    Publication date: February 15, 2024
    Inventors: Gunho Kwak, Patrick Pietrasz, Chi Paik
  • Publication number: 20240047759
    Abstract: Electrochemical stacks such as lithium-ion battery stacks and methods of assembling the same are disclosed. The stacks may include various electrochemical cells having different attributes. In one variation, the outer electrochemical cells may be different than the inner electrochemical cells. For example, the electrodes of the outer cells and inner cells may have different compositions, loading levels, and/or thicknesses. In a refinement, the separators of the outer cells and inner cells may have different thicknesses or porosities.
    Type: Application
    Filed: August 3, 2022
    Publication date: February 8, 2024
    Inventors: Daewon Han, Kyungjin Park, Chi Paik
  • Publication number: 20240047812
    Abstract: Electrochemical cell arrays such as battery packs having cells of different sizes and/or thicknesses is disclosed. For example, the cells in an array may progressively increase or decrease in size or thickness from a first end to a second end such that a gradient in thickness is created. Alternatively, the gradient may be from the center to the outside. In a variation, the first and second endplates may be of different sizes or thicknesses.
    Type: Application
    Filed: August 3, 2022
    Publication date: February 8, 2024
    Inventors: Brian Utley, Daewon Han, Mary Fredrick, Chi Paik
  • Publication number: 20240047665
    Abstract: A positive electrode active material includes a compound represented by formula 1: Li(1.333-0.667x-y)Mn(0.667-0.333x)NixMyO2 or Li(4/3-2/3x-y)Mn(2/3-1/3x)NixMyO2??(1) wherein, M is Co, Cr, or a combination thereof, 0.13<x<0.5; and 0<y<0.333.
    Type: Application
    Filed: August 2, 2022
    Publication date: February 8, 2024
    Inventors: Eunsung LEE, Chi PAIK
  • Publication number: 20240038981
    Abstract: Electrodes, electrochemical cells having higher threshold oxygen-release energies, and methods of making the same are disclosed. The electrodes may be a nickel-rich cathode with up to 10% of a rare-earth element such as cerium. The rare-earth element may be added by doping during the manufacture of the cathode or by applying a coating on a surface of the cathode.
    Type: Application
    Filed: July 27, 2022
    Publication date: February 1, 2024
    Inventors: Christine Kay Lambert, Eunsung Lee, Kyungjin Park, Chi Paik
  • Publication number: 20240030406
    Abstract: A mixed positive electrode material for a battery includes a primary positive electrode material that includes nickel in an amount from about 30 weight percent to about 99 weight percent of the total weight of the primary positive electrode material. The primary positive electrode material has a structure that allowed intercalation and de-intercalation of lithium ions. The mixed positive electrode material also includes a secondary positive electrode material having a structure that allows intercalation and de-intercalation of sodium ions. Advantageously, the mixed positive electrode material can be used as the cathode active material in a battery.
    Type: Application
    Filed: July 22, 2022
    Publication date: January 25, 2024
    Inventors: Feng LI, Patrick PIETRASZ, Chi PAIK
  • Publication number: 20240030500
    Abstract: A thermal runaway inhibiting composition for a battery includes a plurality of particles. Each particle includes an encapsulant configured to melt at a temperature greater than 70° C. and a flame retardant additive encapsulated by the encapsulant. Characteristically, the plurality of particles having a size distribution to inhibit thermal runaway when the thermal runaway-inhibiting composition is included in a battery cell.
    Type: Application
    Filed: July 22, 2022
    Publication date: January 25, 2024
    Inventors: Andrew TIPTON, Brett Stanley HINDS, Chi PAIK
  • Publication number: 20240021781
    Abstract: A method for preparing materials for a positive electrode in a lithium-ion battery includes a step of preparing a fresh sintering precursor that includes a mixture of metal hydroxides or metal carbonates. The fresh sintering precursor is sintered in a first oxygen-containing gaseous environment at a first temperature to form a first sintered product. The first sintered product is intermixed with fresh sintering precursor to form a first intermixed sintering precursor. The first intermixed sintering precursor is sintered in a second oxygen-containing gaseous environment at a second temperature to form a second sintered product.
    Type: Application
    Filed: July 15, 2022
    Publication date: January 18, 2024
    Inventors: Eunsung LEE, Robert J. KUDLA, Chi PAIK
  • Publication number: 20230420646
    Abstract: A hybrid positive electrode active material includes a first positive electrode active powder and a second positive electrode active powder. Each particle of the second positive electrode active powder contacts a plurality of particles of the first positive electrode active material. Characteristically, the average particle size of the first positive electrode active powder is smaller than the average particle size of the second positive electrode active powder.
    Type: Application
    Filed: June 28, 2022
    Publication date: December 28, 2023
    Inventors: Eunsung LEE, Feng LI, Chi PAIK
  • Publication number: 20230261176
    Abstract: A method for producing a multi-layer coating on a substrate for an anode or cathode includes preparing a first mixture including a first solvent and a first active material, preparing a second mixture including a second solvent and a second active material, combining the first mixture and the second mixture to form a slurry, and coating the substrate with the slurry. The first solvent and the second solvent are immiscible.
    Type: Application
    Filed: February 15, 2022
    Publication date: August 17, 2023
    Applicant: Ford Global Technologies, LLC
    Inventors: Patrick Pietrasz, Eunsung Lee, Gunho Kwak, Feng Li, Chi Paik
  • Publication number: 20230242007
    Abstract: A power system and method thereof for charging an electrochemical cell to maintain the cells longevity and/or reduce user's expense is disclosed. The power system may include a traction battery and a controller. The controller may be programmed to initiate a charging command. The charging command may be responsive to a plug-in event and a state-of-charge such that charging is initiated at a future time unless the state-of-charge falls within a capacity-lowering range, region, window, or zone.
    Type: Application
    Filed: January 31, 2022
    Publication date: August 3, 2023
    Inventors: Caitlyn Cavanagh, Chi Paik, Deborah E. Callicoat, Jacqueline Jammoul
  • Patent number: 10744885
    Abstract: A vehicle includes a thermal system for a battery; and a controller for the thermal system. The controller may be configured to, during vehicle motion, cool the battery when a temperature of the battery exceeds a lower threshold and inhibit transfer of power with the battery when the temperature exceeds an upper threshold, and while coupled with a charge station, heat the battery to a temperature between the lower threshold and the upper threshold.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: August 18, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Jacqueline Jammoul, Chi Paik, Joseph F. Freiman, Venkateswara Anand Sankaran, Robert Taenaka
  • Patent number: 10625627
    Abstract: A method for a vehicle comprises, by a controller, responsive to charge current for a battery exceeding a threshold, inhibiting further charging of the battery. The method further includes, responsive to the vehicle achieving a predefined state following the charge current exceeding the threshold, discharging the battery for a predetermined time at a predetermined current both defined by an amount and duration that the charge current exceeded the threshold to deplate lithium from an anode of the battery.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: April 21, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Xiaohong Nina Duan, Chi Paik, Jianrong Huang