Patents by Inventor Won-ho Ji

Won-ho Ji 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: 20240170722
    Abstract: A non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same are described herein. Specifically, the non-aqueous electrolyte solution for a lithium secondary battery includes a lithium salt, an organic solvent and a compound represented by Formula 1 to form a robust SEI film, thereby improving battery performance: Wherein R1 to R3 are described herein.
    Type: Application
    Filed: October 6, 2022
    Publication date: May 23, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Jun Hyeok Han, Kyoung Ho Ahn, Won Kyung Shin, Chul Haeng Lee, Won Tae Lee, Su Hyeon Ji, Young Ho Oh, You Kyeong Jeong
  • Publication number: 20240154165
    Abstract: An electrolyte additive comprising a compound represented by Formula 1 below forms a coating film on an electrode surface in the activation of a secondary battery, thereby the generation of a large amount of gas under a high temperature condition can be prevented, and a cell OCV drop and a decrease in capacity retention rate, which are caused by elution of metal ions from an electrode, can be effectively prevented, resulting in effective improvement in durability, performance and high-temperature safety of the battery, wherein R1, R2, and M are described herein.
    Type: Application
    Filed: October 21, 2022
    Publication date: May 9, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: You Kyeong Jeong, Kyoung Ho Ahn, Jun Hyeok Han, Won Kyung Shin, Won Tae Lee, Su Hyeon Ji, Young Ho Oh
  • Publication number: 20240136579
    Abstract: Disclosed herein relates to an electrolyte composition and a lithium secondary battery including the same, wherein the electrolyte composition can not only effectively reduce gas generated during charging and discharging of the lithium secondary battery by including one or more electrolyte additives of a chemical compound represented by Formula 1 or a chemical compound represented by Formula 2, but also has the advantage of strengthening the SEI layer on the electrode surface, thereby improving the storage characteristics and life characteristics at high temperatures.
    Type: Application
    Filed: January 30, 2023
    Publication date: April 25, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Su Hyeon JI, Chul Haeng LEE, Kyoung Ho AHN, Jun Hyeok HAN, Won Kyung SHIN, Won Tae LEE
  • Publication number: 20240113334
    Abstract: An electrolyte composition with improved high temperature safety and a lithium secondary battery including the same is described herein. The electrolyte composition containing a primary additive comprising a compound represented by Formula 1, and specific amount of a secondary additive that contains one or more of cyclic carbonates, can not only reduce the generation of gas during secondary battery charge-discharge, but also improve storage characteristics and the lifespan characteristics under a high temperature condition by strengthening the SEI coating film on the surface of an electrode. wherein all the variables are described herein.
    Type: Application
    Filed: October 21, 2022
    Publication date: April 4, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Won Tae Lee, Kyoung Ho Ahn, Chul Haeng Lee, Jun Hyeok Han, Won Kyung Shin, Su Hyeon Ji, Young Ho Oh
  • Publication number: 20060228793
    Abstract: A microsystem for separating serum from blood using a centrifuge is provided. The microsystem includes various chambers and channels. When blood is injected into the channels and centrifuged, serum and blood cells in the injected blood are distributed into different chambers. Thus, the serum can be separated from the blood.
    Type: Application
    Filed: February 6, 2006
    Publication date: October 12, 2006
    Inventors: Yoon-kyoung Cho, Tae-gon Kim, Seung-yong Hwang, Kwang-wook Oh, Jin-goo Park, Won-ho Ji