Patents by Inventor Chul Eun Yeom

Chul Eun Yeom 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: 20220399573
    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 at a concentration of 1.5 M to 2.0 M, an organic solvent containing ethylene carbonate and ethyl propionate, and a first additive represented by Formula 1, wherein the ethylene carbonate and the ethyl propionate are present in a volume ratio of 1:9 to 1.5:8.5: NC—R—CH?CH—R1—CN ??[Formula 1] In Formula 1, R and R1 are each independently a substituted or unsubstituted alkylene group having 1 to 5 carbon atoms.
    Type: Application
    Filed: February 18, 2021
    Publication date: December 15, 2022
    Applicant: LG Energy Solution, Ltd.
    Inventors: Jung Min Lee, Young Min Lim, Chul Haeng Lee, Yi Jin Jung, Chul Eun Yeom
  • Publication number: 20220393244
    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 comprises a lithium salt, an organic solvent containing a carbonate compound and a propionate compound, and an additive containing 1,4-dicyano-2-butene and 1,3,5-cyclohexanetricarbonitrile, wherein a volume ratio of the carbonate compound to the propionate compound is 10:90 to 40:60, and wherein a weight ratio of the 1,4-dicyano-2-butene to the 1,3,5-cyclohexanetricarbonitrile is 1:1.5 to 1:3.7.
    Type: Application
    Filed: July 15, 2021
    Publication date: December 8, 2022
    Applicant: LG Energy Solution, Ltd.
    Inventors: Chul Eun Yeom, Young Min Lim, Jung Min Lee, Chul Haeng 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
  • Publication number: 20220200051
    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 for a lithium secondary battery includes a lithium salt, an organic solvent, and an additive, wherein the additive includes 1,4-dicyano-2-butene (DCB) and a compound represented by Formula 1.
    Type: Application
    Filed: November 4, 2020
    Publication date: June 23, 2022
    Applicant: LG Energy Solution, Ltd.
    Inventors: Jung Min Lee, Young Min Lim, Chul Eun Yeom, Chul Haeng Lee