Patents by Inventor Seung Min Oh

Seung Min Oh 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).

  • ELECTROLYTE SOLUTION FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME
    Publication number: 20220320582
    Abstract: Disclosed are an electrolyte solution and an additive thereof, which may improve electrochemical properties of a lithium secondary battery.
    Type: Application
    Filed: November 9, 2021
    Publication date: October 6, 2022
    Inventors: Jun Ki Rhee, Yoon Sung Lee, Sung Ho Ban, Seung Min Oh, Ko Eun Kim, Seung Wan Song, Gyeong Jun Chung
  • POSITIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING SAME
    Publication number: 20220310990
    Abstract: Disclosed is a positive electrode material for a lithium secondary battery. The positive electrode material includes a positive electrode active material formed of Li—[Mn—Ti]-M-O-based material including a transition metal (M) to enable reversible intercalation and deintercalation of lithium and molybdenum oxide.
    Type: Application
    Filed: October 6, 2021
    Publication date: September 29, 2022
    Inventors: Seung Min Oh, Jun Ki Rhee, Yoon Sung Lee, Ji Eun Lee, Sung Ho Ban, Ko Eun Kim, Woo Young Jin, Sang Mok Park, Sang Hun Lee, Seung Taek Myung, Hee Jae Kim, Min Young Shin
  • SECONDARY BATTERY AND MANUFACTURING METHOD THEREFOR
    Publication number: 20220302428
    Abstract: A secondary battery contains a lithium-predoped, silicon-based negative active material. The secondary battery realizes safety and further enhances energy density, cycle characteristics, and rate characteristics. The secondary battery can remarkably improve initial discharge capacity and capacity retention. A method for manufacturing the secondary battery is also disclosed. The method incudes preparing a negative electrode, interposing a separator between the negative electrode and a lithium metal plate to prepare a cell, electrochemically activating the cell to predope the negative electrode with lithium.
    Type: Application
    Filed: August 19, 2020
    Publication date: September 22, 2022
    Applicant: DAEJOO ELECTRONIC MATERIALS CO., LTD.
    Inventors: Hyun Hee LIM, Seung Min OH, Jong Chan LIM
  • Electrolyte solution for lithium secondary batteries and lithium secondary battery including the same
    Patent number: 11444327
    Abstract: Disclosed are an electrolyte solution for lithium secondary batteries capable of increasing the lifetime of the lithium secondary batteries and a lithium secondary battery including the same. Provided is an electrolyte solution for lithium secondary batteries including a lithium salt, a solvent and allyl(4-nitrophenyl) carbonate.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: September 13, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Yoon Sung Lee, Ik Kyu Kim, Seung Min Oh, Young Woo Lee, Dong Jun Kim, Sung Ho Ban, Sung Hoon Lim
  • ELECTROLYTE SOLUTION FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME
    Publication number: 20220285730
    Abstract: Disclosed is an additive for improving the electrochemical properties of a lithium secondary battery.
    Type: Application
    Filed: September 7, 2021
    Publication date: September 8, 2022
    Inventors: Ji Eun Lee, Jun Ki Rhee, Seung Min Oh, Yoon Sung Lee, Sung Ho Ban, Sang Hun Lee, Woo Young Jin, Sang Mok Park, Ko Eun Kim, Hyeon Gyu Moon, Hui Beom Nam, Hyun Soo Ma, Nam Soon Choi
  • ELECTROLYTE SOLUTION FOR LITHIUM SECONDARY BATTERIES AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME
    Publication number: 20220285731
    Abstract: Disclosed is an additive for increasing the electrochemical properties of lithium secondary batteries.
    Type: Application
    Filed: September 7, 2021
    Publication date: September 8, 2022
    Inventors: Sang Hun Lee, Jun Ki Rhee, Yeol Mae Yeo, Seung Min Oh, Yoon Sung Lee, Ji Eun Lee, Ko Eun Kim, Woo Young Jin, Sang Mok Park, Sung Ho Ban, Hyeon Gyu Moon, Hui Beom Nam, Hyun Soo Ma, Nam Soon Choi
  • SILICON/SILICON OXIDE-CARBON COMPLEX, METHOD FOR PREPARING SAME, AND NEGATIVE ELECTRODE ACTIVE MATERIAL COMPRISING SAME FOR LITHIUM SECONDARY BATTERY
    Publication number: 20220271289
    Abstract: A silicon ? silicon oxide-carbon complex has a core-shell structure in which the core comprises silicon particles, a silicon oxide compound represented by SiOx (0<×2), and magnesium silicate, and the shell forms a carbon coating, and has a specific range of conductivity, whereby the use of the complex as a negative electrode active material for a secondary battery can provide the secondary battery with an improvement in capacity as well as cycle characteristics and initial efficiency.
    Type: Application
    Filed: August 19, 2020
    Publication date: August 25, 2022
    Applicant: DAEJOO ELECTRONIC MATERIALS CO., LTD
    Inventors: Seul Gi LEE, Hyeon Soo PARK, Seung Min OH, Jong Chan LIM
  • Cathode active material for lithium secondary battery, cathode and lithium secondary battery comprising same, and manufacturing method thereof
    Patent number: 11424438
    Abstract: A cathode active material for a lithium secondary battery, the cathode method including a core including a lithium metal oxide and a coating layer disposed on the surface and the inner grain boundaries of the core, wherein the coating layer includes a metal carbide, and a method of manufacturing the same.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: August 23, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jieun Lee, Yeolmae Yeo, Seung-Min Oh, Sang Mok Park, Yoon Sung Lee, Dongjun Kim
  • SILICON OXIDE COMPOSITE FOR LITHIUM SECONDARY BATTERY ANODE MATERIAL AND METHOD FOR MANUFACTURING SAME
    Publication number: 20220209228
    Abstract: The present invention relates to a silicon oxide composite for a lithium secondary battery anode material and a method for manufacturing same and, more specifically, to a silicon oxide composite for a lithium secondary battery anode material and a method for manufacturing same, wherein the silicon oxide composite comprises a Si cluster and MgxSiOy(0?x?3, 0?y?5) formed on a peripheral portion of the Si cluster.
    Type: Application
    Filed: April 29, 2020
    Publication date: June 30, 2022
    Inventors: Seung Min OH, Jeong Gyu PARK, Hyeon Soo PARK, Young Min JEON, Jong Chan LIM
  • SURFACE TREATMENT SOLUTION, METHOD FOR PREPARING SURFACE TREATMENT SOLUTION, METHOD FOR PREPARING ACTIVE MATERIAL USING SURFACE TREATMENT SOLUTION, AND ACTIVE MATERIAL PREPARED THEREBY
    Publication number: 20220166014
    Abstract: Disclosed are a method for preparing an active material, the surface of which is modified, using a surface treatment solution and an active material prepared thereby, and more particularly, an active material in which the amount of impurities on the surface thereof is reduced and on the surface of which a metal oxide configured to cut off direct contact with an electrolyte is uniformly disposed by collectively performing both a washing process and a surface treatment process using a surface treatment solution having a novel composition.
    Type: Application
    Filed: November 23, 2021
    Publication date: May 26, 2022
    Applicants: HYUNDAI MOTOR COMPANY, Kia Corporation, Dong-A University Research Foundation for Industry-Academy Cooperation
    Inventors: Sang Mok PARK, Ik Kyu KIM, Yeol Mae YEO, Seung Min OH, Sa Heum KIM, Yoon Sung LEE, Nam Hyeong KIM, Ji Eun LEE, Dong Jun KIM, Sung Ho BAN, Jeom Soo KIM, Seung Hyun KIM
  • LITHIUM SECONDARY BATTERY INCLUDING SEPARATOR WITH CERAMIC LAYER HAVING FIRST CERAMIC PARTICLE BONDED TO SECOND CERAMIC PARTICLE AND MANUFACTURING METHOD THE SAME
    Publication number: 20220166105
    Abstract: Disclosed are a lithium secondary battery including: a positive electrode; a negative electrode; an electrolyte; and a separator including a separator substrate and a ceramic layer formed on one surface or both surfaces of the separator substrate. Particularly, the ceramic layer may include a first ceramic particle including an epoxide group and a second ceramic particle including an amine group, and the first ceramic particle may be chemically bonded to the second ceramic particle.
    Type: Application
    Filed: February 10, 2022
    Publication date: May 26, 2022
    Inventors: Dongjun Kim, Yeol Mae Yeo, Yoon Sung Lee, Jieun Lee, Sang Mok Park, Seung-Min Oh
  • POSITIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME
    Publication number: 20220149364
    Abstract: Disclosed herein is a positive electrode material for a lithium secondary battery, which has a high energy density with only a single positive electrode material, and a lithium secondary battery including the same. A positive electrode active material is made of Li—[Mn—Ti]—O-based material and doped with Al.
    Type: Application
    Filed: June 4, 2021
    Publication date: May 12, 2022
    Inventors: Seung Min Oh, Yoon Sung Lee, Ji Eun Lee, Sang Mok Park, Sung Ho Ban, Woo Young Jin, Sang Hun Lee, Seung Taek Myung, Ji Ung Choi
  • METHOD OF MIXING CATHODE ACTIVE MATERIAL
    Publication number: 20220149374
    Abstract: A method of mixing a cathode active material in a process of manufacturing a cathode of a lithium secondary battery is provided. The method includes a preparation step of preparing a lithium compound removal solution in which PAA (polyacrylic acid) is mixed with a solvent, a removal step of reacting the lithium compound removal solution with the cathode active material, on a surface of which a lithium compound is present, thus removing the lithium compound present on the surface of the cathode active material, and a mixing step of mixing the cathode active material, which is mixed with the lithium compound removal solution, with a conductive material and a binder.
    Type: Application
    Filed: August 27, 2021
    Publication date: May 12, 2022
    Inventors: Sang Mok PARK, Seung Min OH, Woo Young JIN, Ji Eun LEE, Sang Hun LEE, Ko Eun KIM, Jun Ki RHEE, Yoon Sung LEE
  • ANODE MATERIAL FOR LITHIUM SECONDARY BATTERIES AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20220149380
    Abstract: Disclosed are an anode material for lithium secondary batteries, the anode material including an Si-based anode active material and a film layer formed as a double self-assembled monolayer as the result of an amino trimethoxy silane (ATS) SAM precursor and a fluoro ethylene carbonate (FEC) SAM precursor being sequentially bonded to the surface of the Si-based anode active material, and method of manufacturing the same.
    Type: Application
    Filed: June 2, 2021
    Publication date: May 12, 2022
    Inventors: Seung Min Oh, Ik Kyu Kim, Yeol Mae Yeo, Yoon Sung Lee, Ji Eun Lee, Sa Heum Kim, Dong Jun Kim, Nam Hyeong Kim, Jun Young Mun, Yeong Don Park, Su Hyun Lee, Jun Hwa Park, Mei Hua Hong
  • ELECTROLYTE SOLUTION FOR LITHIUM SECONDARY BATTERIES AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME
    Publication number: 20220149432
    Abstract: Disclosed are an electrolyte solution for lithium secondary batteries and a lithium secondary battery including the same.
    Type: Application
    Filed: August 5, 2021
    Publication date: May 12, 2022
    Applicants: HYUNDAI MOTOR COMPANY, Kia Corporation, UNIST(ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Ko Eun Kim, Sung Ho Ban, Yoon Sung Lee, Seung Min Oh, Ik Kyu Kim, Sang Kyu Kwak, Nam Soon Choi, Sung You Hong, Woo Gyum Kim, Dae Yeon Hwang, Hyeon Gyu Moon
  • ELECTROLYTE SOLUTION FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME
    Publication number: 20220131189
    Abstract: The electrolyte solution for a lithium secondary battery includes: a lithium salt; a solvent; and an anode additive including 1-benzyl-5-(4-nitrophenyl)-1H-1,2,3-triazole-4-carbonitrile represented by Chemical Formula 1 below:
    Type: Application
    Filed: June 3, 2021
    Publication date: April 28, 2022
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Yoon Sung LEE, Ko Eun Kim, Sung Ho Ban, Seung Min Oh, Ik Kyu Kim, Sang Kyu Kwak, Nam Soon Choi, Sung You Hong, Dae Yeon Hwang, Seo Young Jeong, Hyeon Gyu Moon
  • ELECTROLYTE SOLUTION FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME
    Publication number: 20220131190
    Abstract: The electrolyte solution for a lithium secondary battery includes: a lithium salt; a solvent; and an anode additive including 5-(4-cyanophenyl)-1-(4-fluorobenzyl)-1H-1,2,3-triazole-4-carbonitrile represented by Chemical Formula 1 below:
    Type: Application
    Filed: June 3, 2021
    Publication date: April 28, 2022
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Yoon Sung LEE, Seung Min OH, Sung Ho BAN, Ko Eun KIM, Jun Ki RHEE, Woo Young JIN, Sang Kyu KWAK, Nam Soon CHOI, Sung You HONG, Woo Gyum KIM, Dae Yeon HWANG, Hyeon Gyu MOON
  • ANODE MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME
    Publication number: 20220131136
    Abstract: The anode material for a lithium secondary battery includes: an Si-based anode active material; and a film layer including a self-assembly monolayer (SAM) formed through bonding of SAM precursors onto a surface of the Si-based anode active material.
    Type: Application
    Filed: June 9, 2021
    Publication date: April 28, 2022
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, INCHEON NATIONAL UNIVERSITY RESEARCH & BUSINESS FOUNDATION
    Inventors: Seung Min Oh, Ik Kyu Kim, Yeol Mae Yeo, Yoon Sung Lee, Ji Eun Lee, Sang Mok Park, Dong Jun Kim, Nam Hyeong Kim, Jun Young Mun, Yeong Don Park, Su Hyun Lee, Jun Hwa Park, Mei Hua Hong
  • ELECTROLYTE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME
    Publication number: 20220115697
    Abstract: The electrolyte for a lithium secondary battery includes: a lithium salt; a solvent; and a functional additive, wherein the functional additive includes 1,2-bis((maleimido)ethane, represented by the following formula 1:
    Type: Application
    Filed: June 7, 2021
    Publication date: April 14, 2022
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Yoon Sung Lee, Seung Min Oh, Ji Eun Lee, Sung Ho Ban, Ik Kyu Kim, Ko Eun Kim, Sang Kyu Kwak, Nam Soon Choi, Woo Gyum Kim, Hyeon Gyu Moon, Sung You Hong, Dae Yeon Hwang
  • ELECTROLYTE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME
    Publication number: 20220115702
    Abstract: The electrolyte for a lithium secondary battery includes: a lithium salt; a solvent; and a functional additive, wherein the functional additive includes: at least one high-voltage additive selected from a group consisting of lithium bis(phthalato)borate, represented by the following formula 1; hexafluoroglutaric anhydride, represented by the following formula 2; and phosphoric acid tris(2,2,2-trifluoroethyl)ester, represented by the following formula 3:
    Type: Application
    Filed: June 3, 2021
    Publication date: April 14, 2022
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, The Industry & Academic Cooperation in Chungnam National University (IAC)
    Inventors: Ko Eun Kim, Seung Min Oh, Yoon Sung Lee, Jun Ki Rhee, Sung Ho Ban, Seung Wan Song, Gyeong Jun Chung