Patents by Inventor Jihyeon Gim

Jihyeon Gim 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: 12266752
    Abstract: A method for coating of lithium ion electrode materials via atomic layer deposition. The coated materials may be integrated in part as a dopant in the electrode itself via heat treatment forming a doped lithium electrode.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: April 1, 2025
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Anil U. Mane, Jason R. Croy, Jeffrey W. Elam, Arturo Gutierrez, Jihyeon Gim, Devika Choudhury, Eungje Lee, Hakim Iddir
  • Publication number: 20250096235
    Abstract: This disclosure relates to cathode active materials for use in lithium-ion battery cells.
    Type: Application
    Filed: August 22, 2024
    Publication date: March 20, 2025
    Inventors: Hongli Dai, Chi-kai Lin, James A. Gilbert, Khalil Amine, Jihyeon Gim, John David Carter, Arthur Jeremy Kropf, Yingying Xie, Haiping Xu
  • Publication number: 20250096236
    Abstract: This disclosure relates generally to battery cells, and more particularly, cathode active materials for use in lithium-ion battery cells.
    Type: Application
    Filed: August 22, 2024
    Publication date: March 20, 2025
    Inventors: Hongli Dai, Chi-kai Lin, James A. Gilbert, Khalil Amine, Jihyeon Gim, John David Carter, Arthur Jeremy Kropf, Yingying Xie, Haiping Xu
  • Patent number: 12240766
    Abstract: Substantially defect-free layered lithium nickel oxide materials of Formula (I): Li(1?x)(Ni(1?y)My)(1+x)O2 and Formula (II): LiaNibMc O2 are provided herein, wherein M is one or more metal selected from the group consisting of Co, Mn, Al, Mg, Ti, B, Zr, Nb, and Mo; 0?x?0.05; and 0?y?0.1, 0.97?a?1.03; 0.9?b?1; 0?c?0.1; and 0.97?(b+c)?1.03; and the material has a layered structure with no more than about 1.2 percent disorder between lithium and transition metal (TM) layers, as determined by structural refinement calculations on x-ray diffraction (XRD) data, compared to an ideal layered LiNiO2 structure. The materials can be formed by heating Ni(OH)2 or NiO with lithium hydroxide at a temperature in the range of about 650 to 680° C.
    Type: Grant
    Filed: May 19, 2022
    Date of Patent: March 4, 2025
    Assignee: UChicago Argonne, LLC
    Inventors: Jihyeon Gim, Eungje Lee, Jinhyup Han, Jason R. Croy
  • Publication number: 20240266527
    Abstract: A coated cathode material including high-nickel lithium cathode and a method of producing the same by atomic layer deposition.
    Type: Application
    Filed: February 6, 2023
    Publication date: August 8, 2024
    Applicant: UCHICAGO ARGONNE, LLC
    Inventors: Jihyeon Gim, Anil U. Mane, Jinhyup Han, Seoung-Bum Son, Pragathi Darapaneni, Eungje Lee, Khalil Amine, Jeffrey W. Elam, Jason R. Croy, Rajesh Pathak
  • Publication number: 20240128505
    Abstract: An anode in an electrochemical cell includes an anode active material comprising sodium and a solid electrolyte interphase (SEI) layer disposed on the anode active material. The SEI layer includes reduction products of an electrolyte solvent and is free of degradation products derived from dissolved anions of an electrolyte salt. The electrolyte solvent and the electrolyte salt are present in an electrolyte of the electrochemical cell. The SEI layer does not include a fluorine content greater than 5 wt. %.
    Type: Application
    Filed: October 17, 2023
    Publication date: April 18, 2024
    Applicants: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, UCHICAGO ARGONNE, LLC
    Inventors: Vincent LAVALLO, Anton TOMICH, Christopher S. JOHNSON, Lei CHENG, Eungje LEE, Jehee PARK, Jihyeon GIM, Ethan Phillip KAMPHAUS
  • Publication number: 20230373812
    Abstract: Substantially defect-free layered lithium nickel oxide materials of Formula (I): Li(1?x)(Ni(1?y)My)(1+x)O2 and Formula (II): LiaNibMc O2 are provided herein, wherein M is one or more metal selected from the group consisting of Co, Mn, Al, Mg, Ti, B, Zr, Nb, and Mo; 0?x?0.05; and 0?y?0.1, 0.97?a?1.03; 0.9?b?1; 0?c?0.1; and 0.97?(b+c)?1.03; and the material has a layered structure with no more than about 1.2 percent disorder between lithium and transition metal (TM) layers, as determined by structural refinement calculations on x-ray diffraction (XRD) data, compared to an ideal layered LiNiO2 structure. The materials can be formed by heating Ni(OH)2 or NiO with lithium hydroxide at a temperature in the range of about 650 to 680° C.
    Type: Application
    Filed: May 19, 2022
    Publication date: November 23, 2023
    Inventors: Jihyeon GIM, Eungje LEE, Jinhyup HAN, Jason R. CROY
  • Publication number: 20220029160
    Abstract: Lithium-manganese-nickel-oxide electrode materials for lithium cells and batteries, notably rechargeable Li-ion batteries, are described herein. These electrode materials are comprised of crystalline, structurally-integrated, lithium-metal-oxides of empirical formula LiM1O2 wherein M1 comprises a combination of Mn and Ni transition metal ions; the crystal structure of the materials comprises domains of a disordered lithiated-spinel component, a disordered layered component, and a disordered rock salt component, in which the oxygen lattice of the components is cubic-close packed. In general, the Mn:Ni ratio in the lithiated-spinel structures described herein is less than 2:1 and preferably close to 1:1, and more preferably 1:1. Optionally, the lithium-manganese-nickel-oxide electrode materials can be blended or structurally-integrated with other cathode materials and structures.
    Type: Application
    Filed: May 6, 2021
    Publication date: January 27, 2022
    Applicant: UCHICAGO ARGONNE, LLC
    Inventors: Michael M. THACKERAY, Eungje LEE, Jason R, CROY, Boyu SHI, Jihyeon GIM
  • Publication number: 20220029156
    Abstract: Cobalt-free lithium-manganese-nickel-oxide electrode materials for lithium cells and batteries, notably rechargeable Li-ion batteries, are described herein. These electrode materials have a lithiated-spinel structure with the general formula LiMnxNiyMzO2, or alternatively in lithiated-spinel notation, Li2Mn2xNi2yM2zO4, in which x+y+z=1, 0<x<1.0, 0<y<1.0, 0?z?0.5, and in which M is selected from one or more metal cations other than Mn, Ni and Co. In general, the Mn:Ni ratio in the lithiated-spinel structures described herein is less than 2:1 and greater than 1:2, preferably close to 1:1, and more preferably 1:1. Optionally, the cobalt-free lithiated spinel materials can be blended or structurally-integrated with other cathode materials that may include cobalt.
    Type: Application
    Filed: December 29, 2020
    Publication date: January 27, 2022
    Applicant: UCHICAGO ARGONNE, LLC
    Inventors: Michael M. THACKERAY, Eungje LEE, Jason R, CROY, Boyu SHI, Jihyeon GIM
  • Publication number: 20210336240
    Abstract: A method for coating of lithium ion electrode materials via atomic layer deposition. The coated materials may be integrated in part as a dopant in the electrode itself via heat treatment forming a doped lithium electrode.
    Type: Application
    Filed: April 22, 2020
    Publication date: October 28, 2021
    Applicant: UCHICAGO ARGONNE, LLC
    Inventors: Anil U. Mane, Jason R. Croy, Jeffrey W. Elam, Arturo Gutierrez, Jihyeon Gim, Devika Choudhury, Eungje Lee, Hakim Iddir
  • Publication number: 20160190585
    Abstract: A composite cathode active material including: a lithium composite oxide; a metal phosphate represented by Formula 1, preparation methods thereof, a cathode and a lithium battery. MxPyOz ??Formula 1 wherein, in Formula 1, M is vanadium, niobium, tantalum, or a combination thereof, 1?y/x?1.33, and 4?z/y?5.
    Type: Application
    Filed: December 28, 2015
    Publication date: June 30, 2016
    Inventors: Jaegu Yoon, Donghan Kim, Kwangjin Park, Sukgi Hong, Jinhwan Park, Jaekook Kim, Sungjin Kim, Jihyeon Gim, Jinju Song