Patents by Inventor Nam-Soon Choi

Nam-Soon Choi 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: 20240178450
    Abstract: An embodiment electrolyte solution includes a lithium salt, a solvent, and a functional additive, wherein the functional additive includes 4-((tert-butoxydimethylsilyl)methyl)-5-methyl-1,3-dioxol-2-one represented by as an electrode film additive. An embodiment lithium secondary battery includes the above-described electrolyte solution, a positive electrode including a positive electrode active material including Ni, Co, and Mn, a negative electrode including a carbon-based negative electrode active material or a silicon-based negative electrode active material, and a separator interposed between the positive electrode and the negative electrode.
    Type: Application
    Filed: November 8, 2023
    Publication date: May 30, 2024
    Inventors: Ko Eun Kim, Sung Ho Ban, Yoon Sung Lee, Jun Ki Rhee, Hui Beom Nam, Hyeon Gyu Moon, Nam-Soon Choi, Jeong Woo Lee, Sung You Hong
  • Publication number: 20240170723
    Abstract: The present disclosure relates to an electrolyte solution for a lithium secondary battery capable of improving the output and lifespan characteristics at high temperature of a lithium secondary battery, and a lithium secondary battery including the same. An electrolyte solution for a lithium secondary battery includes a lithium salt, a solvent, and a functional additive, wherein the functional additive includes a first negative-electrode film additive, which is silver p-toluenesulfonate.
    Type: Application
    Filed: October 25, 2023
    Publication date: May 23, 2024
    Inventors: Ko Eun Kim, Yoon Sung Lee, Sung Ho Ban, Jun Ki Rhee, Hui Beom Nam, Hyeon Gyu Moon, Nam-Soon Choi
  • Publication number: 20240170724
    Abstract: An embodiment electrolyte solution includes a lithium salt, a solvent, and a functional additive, wherein the functional additive includes an electrode film additive of 2-(dodec-1-en-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane represented by An embodiment lithium secondary battery includes this electrolyte solution, a positive electrode including a positive-electrode active material including Ni, Co, and Mn, a negative electrode including a negative-electrode active material including a carbon (C)-based material or a silicon (Si)-based material, and a separator interposed between the positive electrode and the negative electrode.
    Type: Application
    Filed: November 8, 2023
    Publication date: May 23, 2024
    Inventors: Ko Eun Kim, Sung Ho Ban, Yoon Sung Lee, Jun Ki Rhee, Hui Beom Nam, Hyeon Gyu Moon, Nam-Soon Choi, Jeong Woo Lee, Sung You Hong
  • Publication number: 20240162494
    Abstract: The present disclosure relates to an electrolyte solution for a lithium secondary battery capable of improving the output and lifespan characteristics at high temperature of a lithium secondary battery, and a lithium secondary battery including the same. An electrolyte solution for a lithium secondary battery includes a lithium salt, a solvent, and a functional additive, wherein the functional additive includes a negative-electrode film additive, which is silver p-toluenesulfonate.
    Type: Application
    Filed: October 26, 2023
    Publication date: May 16, 2024
    Inventors: Ko Eun Kim, Yoon Sung Lee, Sung Ho Ban, Jun Ki Rhee, Hui Beom Nam, Hyeon Gyu Moon, Nam-Soon Choi
  • Publication number: 20240120462
    Abstract: A rechargeable lithium battery includes a positive electrode, a negative electrode, a separator between the positive electrode and the negative electrode, and an electrolyte, wherein the negative electrode includes a negative electrode current collector and a negative electrode active material layer on the negative electrode current collector, the negative electrode active material layer includes a carbon material capable of intercalating and deintercalating lithium as a negative electrode active material, the negative electrode further includes a lithiophilic element on the surface of the negative electrode current collector and/or inside the negative electrode active material layer, the lithiophilic element includes one or more elements selected from Al, Ag, Au, Bi, In, Mg, Pd, Pt, Si, Sn, and Zn, the negative electrode is one in which lithium is electrodeposited between the negative electrode current collector and the negative electrode active material layer and/or inside the negative electrode active mate
    Type: Application
    Filed: October 6, 2023
    Publication date: April 11, 2024
    Inventors: Nam-Soon CHOI, Sewon PARK, Seunghee HAN
  • Publication number: 20240120463
    Abstract: Disclosed are a rechargeable lithium battery, and a negative electrode for a rechargeable lithium battery, the rechargeable lithium battery including a positive electrode, a negative electrode, a separator between the positive electrode and the negative electrode, and an electrolyte, wherein the negative electrode includes a negative electrode current collector and a negative electrode active material layer on the negative electrode current collector, the negative electrode active material layer includes a carbon material capable of intercalating and deintercalating lithium as a negative electrode active material, the negative electrode further includes a lithiophilic element on the surface of the negative electrode current collector and/or inside the negative electrode active material layer, the lithiophilic element includes one or more elements selected from Al, Ag, Au, Bi, In, Mg, Pd, Pt, Si, Sn, and Zn, the negative electrode is one in which lithium is electrodeposited between the negative electrode curre
    Type: Application
    Filed: October 6, 2023
    Publication date: April 11, 2024
    Inventors: Nam-Soon CHOI, Sewon PARK, Seunghee HAN, Kyeong-Min JEONG
  • Publication number: 20240088442
    Abstract: Provided are an electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the same, the electrolyte including a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive is a composition including a first compound, a second compound, and a third compound, the first compound is represented by Chemical Formula 1, the second compound is represented by Chemical Formula 2, and the third compound is a cyclic carbonate compound. Details of Chemical Formulas 1 and 2 are as described in the specification.
    Type: Application
    Filed: July 14, 2023
    Publication date: March 14, 2024
    Inventors: Tae Hyon BAE, Yunhee KIM, Sanghyung KIM, Seunghyeon SON, Harim LEE, Arum YU, Jeong-A LEE, Saehun KIM, Nam-Soon CHOI
  • Publication number: 20230411697
    Abstract: An electrolyte includes a plurality of additives to form a multi-layered solid electrolyte interface layer. In addition, a lithium secondary battery including the same electrolyte is proposed.
    Type: Application
    Filed: December 23, 2022
    Publication date: December 21, 2023
    Applicants: HYUNDAI MOTORS COMPANY, KIA CORPORATION, Korea Advanced Institute of Science and Technology
    Inventors: Eun Ji Kwon, Won Keun Kim, Samuel Seo, Yeon Jong Oh, Kyu Ju Kwak, Dong Hyun Lee, Kyoung Han Ryu, Jun Kyu Park, Nam Soon Choi, Jeong A Lee, Sae Hun Kim
  • Publication number: 20230402650
    Abstract: An electrolyte for a lithium secondary battery can enhance lifetime and output characteristics in a high-capacity lithium secondary battery. The electrolyte for a lithium secondary battery includes a lithium salt, a solvent, and a functional additive. The functional additive includes 1-(3-((tert-butyldimethylsilyl)oxy)propyl)-5-(4-fluorophenyl)-1H-1,2,3-triazole-4-carbonitrile as a positive electrode film additive.
    Type: Application
    Filed: November 18, 2022
    Publication date: December 14, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Yoon Sung Lee, Jun Ki Rhee, Hui Beom Nam, Ko Eun Kim, Sung Ho Ban, Seung Min Oh, Sang Kyu Kwak, Nam Soon Choi, Sung You Hong, Hyeong Jun Kim, Seo Young Jeong, Hyeon Gyu Moon, Min Pyeong Kim
  • Publication number: 20230402649
    Abstract: Disclosed herein are an electrolyte for a lithium secondary battery, which can enhance lifetime and output characteristics in a high-capacity lithium secondary battery, and a lithium secondary battery including the same. The electrolyte for a lithium secondary battery may include a lithium salt, a solvent, and a functional additive, wherein the functional additive includes 5,5-diallyl-3-(tert-butyldimethylsilyl)oxazolidin-2-one as a positive electrode film additive.
    Type: Application
    Filed: November 17, 2022
    Publication date: December 14, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, UNIST(ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Yoon Sung Lee, Jun Ki Rhee, Hui Beom Nam, Ko Eun Kim, Sung Ho Ban, Sang Kyu Kwak, Nam Soon Choi, Sung You Hong, Hyeong Jun Kim, Seo Young Jeong, Hyeon Gyu Moon, Min Pyeong Kim
  • Patent number: 11830979
    Abstract: The electrolyte for a lithium secondary battery comprises: a lithium salt; a solvent; and a functional additive, wherein the functional additive comprises naphthalen-1-yl sulfurofluoridate, represented by the following formula 1:
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: November 28, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Yoon Sung Lee, Ik Kyu Kim, Seung Min Oh, Sung Ho Ban, Sang Mok Park, Ko Eun Kim, Sang Kyu Kwak, Nam Soon Choi, Hyeon Gyu Moon, Seo Young Jeong, Sung You Hong, Dae Yeon Hwang
  • Patent number: 11749838
    Abstract: Disclosed are an electrolyte solution for lithium secondary batteries and a lithium secondary battery including the same.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: September 5, 2023
    Assignees: Hyundai Motor Company, Kia Corporation, UNIST (Ulsan National Insitute 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
  • Patent number: 11742521
    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: Grant
    Filed: June 3, 2021
    Date of Patent: August 29, 2023
    Assignees: 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
  • Publication number: 20230207874
    Abstract: The present disclosure provides an electrolyte for a lithium secondary battery capable of improving the lifespan characteristics and output characteristics of a high capacity lithium secondary battery and a lithium secondary battery including the same.
    Type: Application
    Filed: July 19, 2022
    Publication date: June 29, 2023
    Inventors: Yoon Sung Lee, Jun Ki Rhee, Ko Eun Kim, Sung Ho Ban, Seung Min Oh, Nam Soon Choi, Sung You Hong, Sang Kyu Kwak, Hyeon Gyu Moon, Hyeong Jun Kim, Min Ho Jeon
  • Publication number: 20230207875
    Abstract: An additive for an electrolyte solution improves the electrochemical properties of a lithium secondary battery.
    Type: Application
    Filed: July 21, 2022
    Publication date: June 29, 2023
    Inventors: Yoon Sung Lee, Jun Ki Rhee, Ko Eun Kim, Sung Ho Ban, Seung Min Oh, Sung You Hong, Sang Kyu Kwak, Nam Soon Choi, Hyeong Jun Kim, Hui Beom Nam, Min Ho Jeon
  • Publication number: 20230207877
    Abstract: Proposed is an additive for an electrolyte solution to improve the electrochemical properties of a lithium secondary.
    Type: Application
    Filed: September 22, 2022
    Publication date: June 29, 2023
    Inventors: Yoon Sung LEE, Jun Ki RHEE, Ko Eun KIM, Sung Ho BAN, Seung Min OH, Nam Soon CHOI, Sang Kyu KWAK, Sung You HONG, Hyeong Jun KIM, Seo Young JEONG, Hyeon Gyu MOON
  • Publication number: 20230207876
    Abstract: Disclosed is an additive for an electrolyte solution to improve the electrochemical properties of a lithium secondary battery.
    Type: Application
    Filed: August 23, 2022
    Publication date: June 29, 2023
    Inventors: Yoon Sung Lee, Jun Ki Rhee, Ko Eun Kim, Sung Ho Ban, Seung Min Oh, Sang Kyu Kwak, Sung You Hong, Nam Soon Choi, Min Ho Jeon, Hyeong Jun Kim, Hui Beom Nam
  • Patent number: 11670801
    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: Grant
    Filed: June 3, 2021
    Date of Patent: June 6, 2023
    Assignees: 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
  • Patent number: 11646448
    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: Grant
    Filed: June 7, 2021
    Date of Patent: May 9, 2023
    Assignees: Hyundai Motor Company, Kia Corporation, UNIST (Ulsan National Insitute 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
  • Publication number: 20230027597
    Abstract: An electrolyte composition for a lithium secondary battery includes a lithium salt comprising a nitrogen element, a first additive having a LUMO (lowest occupied molecular orbital) value lower than a LUMO value of the lithium salt, and a second additive having a LUMO value higher than the LUMO value of the lithium salt.
    Type: Application
    Filed: July 14, 2022
    Publication date: January 26, 2023
    Applicants: HYUNDAI MOTOR COMPANY, Kia Corporation, ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Ji Yong LEE, Jong Chan SONG, Nam Soon CHOI, Da Young KANG, Seung Hee HAN, Sae Hun KIM, Min Young LEE