Patents by Inventor Hyun-Yeong Lee

Hyun-Yeong Lee 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: 12243985
    Abstract: A non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte solution includes a lithium salt, an organic solvent, and a compound represented by Formula 1 as an additive. A lithium secondary battery including the non-aqueous electrolyte solution has improved high-rate charge and discharge characteristics at high temperature.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: March 4, 2025
    Assignee: LG Energy Solution, Ltd.
    Inventors: Hyun Yeong Lee, Chul Haeng Lee, Young Min Lim, Jung Min Lee, Chul Eun Yeom, Jung Gu Han
  • Patent number: 12243983
    Abstract: A non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte solution includes a lithium salt, an organic solvent, and a compound represented by Formula 1 as an additive. A lithium secondary battery including the non-aqueous electrolyte solution has improved high-rate charge and discharge characteristics at high temperature.
    Type: Grant
    Filed: November 27, 2020
    Date of Patent: March 4, 2025
    Assignee: LG Energy Solution, Ltd.
    Inventors: Hyun Yeong Lee, Hyun Seung Kim, Chul Haeng Lee, Young Min Lim
  • Publication number: 20240055661
    Abstract: The present invention relates to a non-aqueous electrolyte solution for a lithium secondary battery, which includes an additive including a compound represented by Formula 1, a lithium salt, and an organic solvent, and a lithium secondary battery including the same, wherein R1, R2, and m are described herein.
    Type: Application
    Filed: March 16, 2022
    Publication date: February 15, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Jung Min Lee, Hyun Yeong Lee, Chul Eun Yeom, Chul Haeng Lee
  • Publication number: 20220384850
    Abstract: A non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte solution includes a lithium salt, an organic solvent, and a compound represented by Formula 1 as an additive. A lithium secondary battery including the non-aqueous electrolyte solution has improved high-rate charge and discharge characteristics at high temperature.
    Type: Application
    Filed: November 27, 2020
    Publication date: December 1, 2022
    Applicant: LG Energy Solution, Ltd.
    Inventors: Hyun Yeong Lee, Hyun Seung Kim, Chul Haeng Lee, Young Min Lim
  • Patent number: 11482728
    Abstract: A non-aqueous electrolyte solution for a lithium secondary battery, and a lithium second battery including the same are disclosed herein. In some embodiments, the lithium electrolyte includes lithium bis(fluorosulfonyl)imide as a first lithium salt, a second lithium salt, an organic solvent, and a compound represented by Formula 1. In some embodiments, the lithium second battery includes a positive electrode having a positive electrode active material represented by Formula 2.
    Type: Grant
    Filed: November 23, 2018
    Date of Patent: October 25, 2022
    Inventors: Hyun Yeong Lee, Chul Haeng Lee, Sung Hoon Yu, Hyun Seung Kim
  • Patent number: 11476500
    Abstract: A non-aqueous electrolyte solution and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte solution includes a lithium salt, an organic solvent, and a compound represented by Formula 1 as an additive. The compound has an excellent effect of removing a decomposition product, such as HF and PF5, generated from the lithium salt in the electrolyte solution. The lithium secondary battery has improved high-temperature storage characteristics by including the non-aqueous electrolyte solution.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: October 18, 2022
    Inventors: Hyun Seung Kim, Chul Haeng Lee, Sung Hoon Yu, Hyun Yeong Lee
  • Publication number: 20220209299
    Abstract: A non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte solution includes a lithium salt, an organic solvent, and a compound represented by Formula 1 as an additive. A lithium secondary battery including the non-aqueous electrolyte solution has improved high-rate charge and discharge characteristics at high temperature.
    Type: Application
    Filed: November 13, 2020
    Publication date: June 30, 2022
    Applicant: LG Energy Solution, Ltd.
    Inventors: Hyun Yeong Lee, Chul Haeng Lee, Young Min Lim, Jung Min Lee, Chul Eun Yeom, Jung Gu Han
  • Patent number: 10923768
    Abstract: The present invention relates to an additive for a non-aqueous electrolyte solution, which may suppress the generation of metallic foreign matter causing a side effect in a battery while forming a stable film on the surface of an electrode, a non-aqueous electrolyte solution for a lithium secondary battery which includes the additive, and a lithium secondary battery including the non-aqueous electrolyte solution.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: February 16, 2021
    Inventors: Sung Hoon Yu, Kyung Mi Lee, Shul Kee Kim, Hyun Yeong Lee, Yoo Sun Kang
  • Publication number: 20210036364
    Abstract: A non-aqueous electrolyte solution and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte solution includes a lithium salt, an organic solvent, and a compound represented by Formula 1 as an additive. The compound has an excellent effect of removing a decomposition product, such as HF and PF5, generated from the lithium salt in the electrolyte solution. The lithium secondary battery has improved high-temperature storage characteristics by including the non-aqueous electrolyte solution.
    Type: Application
    Filed: February 12, 2019
    Publication date: February 4, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Hyun Seung Kim, Chul Haeng Lee, Sung Hoon Yu, Hyun Yeong Lee
  • Patent number: 10862166
    Abstract: The present invention relates to a non-aqueous electrolyte solution for a lithium secondary battery, which includes a compound capable of suppressing an electrolyte solution side reaction in a high-temperature and high-voltage environment, and a lithium secondary battery in which cycle characteristics and stability are improved even during high-temperature and high-voltage charging by including the same.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: December 8, 2020
    Inventors: Sung Hoon Yu, Kyung Mi Lee, Shul Kee Kim, Hyun Yeong Lee, Yoo Sun Kang
  • Publication number: 20200075997
    Abstract: A non-aqueous electrolyte solution for a lithium secondary battery, and a lithium second battery including the same are disclosed herein. In some embodiments, the lithium eletrotrolyte includes lithium bis(fluorosulfonyl)imide as a first lithium salt, a second lithium salt, an organic solvent, and a compound represented by Formula 1. In some embodiments, the lithium second battery includes a positive electrode having a positive electrode active material represented by Formula 2.
    Type: Application
    Filed: November 23, 2018
    Publication date: March 5, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Hyun Yeong Lee, Chul Haeng Lee, Sung Hoon Yu, Hyun Seung Kim
  • Publication number: 20190348713
    Abstract: The present invention relates to a non-aqueous electrolyte solution for a lithium secondary battery, which includes a compound capable of suppressing an electrolyte solution side reaction in a high-temperature and high-voltage environment, and a lithium secondary battery in which cycle characteristics and stability are improved even during high-temperature and high-voltage charging by including the same.
    Type: Application
    Filed: January 12, 2018
    Publication date: November 14, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Sung Hoon Yu, Kyung Mi Lee, Shul Kee Kim, Hyun Yeong Lee, Yoo Sun Kang
  • Publication number: 20190341654
    Abstract: The present invention relates to a non-aqueous electrolyte solution for a lithium secondary battery which includes a compound acting as a HF scavenger, and a lithium secondary battery in which cycle life characteristics and high-temperature storage characteristics are improved by including the same.
    Type: Application
    Filed: January 18, 2018
    Publication date: November 7, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Sung Hoon Yu, Kyung Mi Lee, Shul Kee Kim, Hyun Yeong Lee, Yoo Sun Kang
  • Publication number: 20190334207
    Abstract: The present invention relates to an additive for a non-aqueous electrolyte solution, which may suppress the generation of metallic foreign matter causing a side effect in a battery while forming a stable film on the surface of an electrode, a non-aqueous electrolyte solution for a lithium secondary battery which includes the additive, and a lithium secondary battery including the non-aqueous electrolyte solution.
    Type: Application
    Filed: January 15, 2018
    Publication date: October 31, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Sung Hoon Yu, Kyung Mi Lee, Shul Kee Kim, Hyun Yeong Lee, Yoo Sun Kang
  • Patent number: 10211483
    Abstract: The present invention relates to an additive for a non-aqueous electrolyte solution, which has an excellent effect of adsorbing metal ions dissolved from a positive electrode, a non-aqueous electrolyte solution for a lithium secondary battery including the same, and a lithium secondary battery including the non-aqueous electrolyte solution.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: February 19, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Sung Hoon Yu, Hyun Yeong Lee, Yoo Sun Kang, Kyung Mi Lee
  • Publication number: 20180261885
    Abstract: The present invention relates to: a nonaqueous electrolyte having an excellent swelling suppressing effect during high-temperature storage; and a lithium secondary battery including the same.
    Type: Application
    Filed: November 15, 2016
    Publication date: September 13, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Hyun Yeong Lee, Hyea Eun Han, Chul Haeng Lee, Yu Ra Jeong
  • Patent number: 10026992
    Abstract: The present invention relates to an additive for a non-aqueous electrolyte solution which may improve overcharge safety, a non-aqueous electrolyte solution for a lithium secondary battery including the same, and a lithium secondary battery including the non-aqueous electrolyte solution.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: July 17, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Sung Hoon Yu, Hyun Yeong Lee, Yoo Sun Kang, Kyung Mi Lee
  • Publication number: 20170125846
    Abstract: The present invention relates to an additive for a non-aqueous electrolyte solution which may improve overcharge safety, a non-aqueous electrolyte solution for a lithium secondary battery including the same, and a lithium secondary battery including the non-aqueous electrolyte solution.
    Type: Application
    Filed: November 2, 2016
    Publication date: May 4, 2017
    Applicant: LG Chem, Ltd.
    Inventors: Sung Hoon Yu, Hyun Yeong Lee, Yoo Sun Kang, Kyung Mi Lee
  • Publication number: 20170125847
    Abstract: The present invention relates to an additive for a non-aqueous electrolyte solution, which has an excellent effect of adsorbing metal ions dissolved from a positive electrode, a non-aqueous electrolyte solution for a lithium secondary battery including the same, and a lithium secondary battery including the non-aqueous electrolyte solution.
    Type: Application
    Filed: November 2, 2016
    Publication date: May 4, 2017
    Applicant: LG Chem, Ltd.
    Inventors: Sung Hoon Yu, Hyun Yeong Lee, Yoo Sun Kang, Kyung Mi Lee
  • Patent number: 9178197
    Abstract: The present invention provides a lithium secondary battery, comprising a cathode, an anode, a non-aqueous solution containing a lithium salt and an organic solvent, and a safety vent for removing increased internal pressure, the non-aqueous solution having the prescribed composition and the safety vent having the prescribed operational characteristics. The lithium secondary battery of the present invention can ensure its safety even when overcharged.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: November 3, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Jong-Ho Jeon, Yong-Gon Lee, Seung-Woo Chu, Shul-Kee Kim, Hyun-Yeong Lee, Jae-Deok Jeon