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).

  • 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
  • Publication number: 20220328875
    Abstract: Disclosed are an electrolyte solution and an additive thereof, which may increase electrochemical properties of a lithium secondary battery.
    Type: Application
    Filed: November 22, 2021
    Publication date: October 13, 2022
    Inventors: Woo Young JIN, Jun Ki RHEE, Yeol Mae YEO, Seung Min OH, Yoon Sung LEE, Ji Eun LEE, Sang Hun LEE, Ko Eun KIM, Sang Mok PARK, Sung Ho BAN, Hyeon Gyu MOON, Hui Beom NAM, Hyun Soo MA, Nam Soon CHOI
  • Patent number: 11450887
    Abstract: Disclosed herein are an electrolyte for a lithium secondary battery and a lithium secondary battery including the same. The disclosed lithium secondary battery includes: a cathode; an anode; a separator interposed between the cathode and the anode; and an electrolyte, wherein the electrolyte includes: a lithium salt; and a solvent including a perfluorinated ether-based solvent, fluoroethylene carbonate (FEC), and ethylmethyl carbonate (EMC).
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: September 20, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation, UNIST (Ulsan National Institute of Science and Technology)
    Inventors: KyoMin Shin, DongHui Kim, SangJoon Lee, Seung Ho Ahn, SungHoon Lim, Nam-Soon Choi, Sung You Hong, Choonki Kim, Koeun Kim, Yeonkyoung Kim
  • 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
  • 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
  • Patent number: 11437610
    Abstract: Provided are a high-capacity secondary battery including a cathode including an over-lithiated oxide cathode material or a Ni-rich cathode material; a lithium anode (Li anode); and an electrolyte including a superoxide dismutase mimic catalyst (SODm).
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: September 6, 2022
    Assignee: UNIST(ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Hyun-Kon Song, Nam-Soon Choi, Chihyun Hwang, Jung-Gu Han
  • Publication number: 20220190388
    Abstract: An electrolyte capable of lip roving the stability of a lithium-metal battery is provided. The electrolyte includes an organic solvent, a cosolvent, which is different from the organic solvent and includes a fluorine-based compound, and an additive having a lower lowest unoccupied molecular orbital (LUMO) value than the organic solvent.
    Type: Application
    Filed: November 30, 2021
    Publication date: June 16, 2022
    Inventors: Ji Yong LEE, Jong Chan SONG, Nam Soon CHOI, Won Joon LEE, Sae Hun KIM, Min Young LEE, Young Joon AHN
  • 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
  • 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
  • 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
  • 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
  • Publication number: 20220115696
    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: Application
    Filed: June 4, 2021
    Publication date: April 14, 2022
    Applicants: 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: 11145902
    Abstract: Disclosed are an electrolyte for a lithium secondary battery and a lithium secondary battery including the same. The electrolyte for the lithium secondary battery includes a lithium salt, a solvent component and an additive including one or more of the following compounds, wherein each of R1, R2 and R3 is independently hydrogen, an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an aryl group having 6 to 30 carbon atoms, or an arylalkyl group having 6 to 30 carbon atoms.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: October 12, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation, UNIST (Ulsan National Institute of Science and Technology)
    Inventors: Yoon Sung Lee, Jung Young Cho, Ikkyu Kim, Seung-Min Oh, DongHui Kim, Nam-Soon Choi, Koeun Kim, Juyeon Lee, Sung Ji Park
  • Publication number: 20210175545
    Abstract: The present disclosure relates to an electrolyte for a lithium metal battery including a reductive decomposable additive for forming a stable film, and a lithium metal battery including the same. The electrolyte for the lithium metal battery includes lithium nitrate (LiNO3) and lithium difluorobis(oxalate) phosphate (LiDFBP) as a reductive decomposable additive, so that a stable protective film is formed on the surface of a metal anode. Accordingly, mechanical properties are improved so as to withstand lithium volume expansion under a high-specific-capacity condition, and ion conductivity is improved under a high-current-density condition, thereby improving the stability and performance of the lithium metal battery including the protective film.
    Type: Application
    Filed: May 20, 2020
    Publication date: June 10, 2021
    Inventors: Ji Yong Lee, Jong Chan Song, Won Joon Lee, Sae Hun Kim, Min Young Lee, Nam Soon Choi, Young Joon Ahn
  • Publication number: 20200373618
    Abstract: Provided are an electrolyte for a 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 component and an additive, and the additive may include a compound represented by the following Chemical formula (1). In Chemical Formula (1), R1 and R2 are each independently a linear or a branched alkyl group having 2 to 6 carbon atoms and containing 3 or more fluorine atoms.
    Type: Application
    Filed: October 16, 2019
    Publication date: November 26, 2020
    Inventors: Jung Young Cho, Yoon Sung Lee, Nam-Soon Choi, Koeun Kim, Sung Ji Park, Juyeon Lee
  • Publication number: 20200350556
    Abstract: Provided are a high-capacity secondary battery including a cathode including an over-lithiated oxide cathode material or a Ni-rich cathode material; a lithium anode (Li anode); and an electrolyte including a superoxide dismutase mimic catalyst (SODm).
    Type: Application
    Filed: April 30, 2020
    Publication date: November 5, 2020
    Inventors: Hyun-Kon SONG, Nam-Soon CHOI, Chihyun HWANG, Jung-Gu HAN
  • Publication number: 20200235431
    Abstract: Disclosed are an electrolyte for a lithium secondary battery and a lithium secondary battery including the same. The electrolyte for the lithium secondary battery includes a lithium salt, a solvent component and an additive including one or more of the following compounds, wherein each of R1, R2 and R3 is independently hydrogen, an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an aryl group having 6 to 30 carbon atoms, or an arylalkyl group having 6 to 30 carbon atoms.
    Type: Application
    Filed: May 20, 2019
    Publication date: July 23, 2020
    Inventors: Yoon Sung Lee, Jung Young Cho, Ikkyu Kim, Seung-Min Oh, DongHui Kim, Nam-Soon Choi, Koeun Kim, Juyeon Lee, Sung Ji Park
  • Publication number: 20200194836
    Abstract: Disclosed herein are an electrolyte for a lithium secondary battery and a lithium secondary battery including the same. The disclosed lithium secondary battery includes: a cathode; an anode; a separator interposed between the cathode and the anode; and an electrolyte, wherein the electrolyte includes: a lithium salt; and a solvent including a perfluorinated ether-based solvent, fluoroethylene carbonate (FEC), and ethylmethyl carbonate (EMC).
    Type: Application
    Filed: November 27, 2019
    Publication date: June 18, 2020
    Inventors: KyoMin Shin, DongHui Kim, SangJoon Lee, Seung Ho Ahn, SungHoon Lim, Nam-Soon Choi, Sung You Hong, Choonki Kim, Koeun Kim, Yeonkyoung Kim
  • Publication number: 20190348668
    Abstract: One embodiment of the present invention relates to a lithium metal anode. Wherein the lithium metal anode comprises a current collector and a lithium metal thin film layer disposed on at least one surface of the current collector and having a thickness in a range of 0.1 to 200 ?m and a coating layer disposed on a surface of the lithium metal thin film layer, wherein, the coating layer comprising a Li—N—C—H—O based ionic compound.
    Type: Application
    Filed: December 15, 2017
    Publication date: November 14, 2019
    Inventors: Jin Hong KIM, Hong-Youl BAE, Mun Kyu CHO, Nam Soon CHOI, Sang-Lag LEE, Weon-Soo BAE, Yong Won LEE, Ji-Woong MOON