Patents by Inventor Kyung Min Lim

Kyung Min Lim 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: 20250192169
    Abstract: The present invention relates to a lithium secondary battery, and more particularly, to a lithium secondary battery which has an improved capacity and lifetime maintenance rate by controlling a voltage range during formation or operation of the lithium secondary battery. In addition, the present invention relates to a lithium secondary battery in which the degradation of the electrochemical properties of a lithium secondary battery, including rate capability, caused by an excess of lithium and manganese in the lithium manganese-based oxide used as a positive electrode active material, is prevented, and particularly, the lifetime deterioration is prevented by inhibiting or mitigating the dissolution of a transition metal from the lithium manganese-based oxide.
    Type: Application
    Filed: February 24, 2025
    Publication date: June 12, 2025
    Applicant: ECOPRO BM CO., LTD.
    Inventors: Ra Na LIM, Hyun Su JUNG, Kyung Min LIM
  • Publication number: 20250140837
    Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a positive electrode active material including an overlithiated lithium manganese-based oxide, which can be synthesized at a lower temperature than that in a conventional synthesis process, and compensate for phase development and lithium ion conductivity, which are insufficient when synthesized at low temperatures, and a lithium secondary battery including the same.
    Type: Application
    Filed: September 26, 2024
    Publication date: May 1, 2025
    Applicant: ECOPRO BM CO., LTD.
    Inventors: Seong Kyun KIM, Hyun Su JUNG, Ra Na LIM, Kyung Min LIM
  • Publication number: 20250132328
    Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a bimodal-type positive electrode active material, in which low energy density per unit volume and low stability of an overlithiated lithium manganese-based oxide are improved, and a lithium secondary battery including the same.
    Type: Application
    Filed: September 26, 2024
    Publication date: April 24, 2025
    Applicant: ECOPRO BM CO., LTD.
    Inventors: Eun Hee PARK, Hyun Su JUNG, Ra Na LIM, Kyung Min LIM
  • Publication number: 20250118744
    Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a positive electrode active material including an overlithiated lithium manganese-based oxide, which can improve the electrochemical properties of a lithium secondary battery including discharge capacity and rate performance, which are reduced by lithium and manganese present in excess in the lithium manganese-based oxide, and a lithium secondary battery including the same.
    Type: Application
    Filed: October 4, 2024
    Publication date: April 10, 2025
    Applicant: ECOPRO BM CO., LTD.
    Inventors: Se Hyeon JEON, Ra Na LIM, Kyung Min LIM, Hyun Su JUNG
  • Publication number: 20250087687
    Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a positive electrode active material which includes an overlithiated lithium manganese-based oxide including at least lithium, nickel, manganese and a doping metal, and in which the degradation in stability caused by excessive amounts of lithium and manganese in the lithium manganese-based oxide is mitigated and/or prevented by controlling the concentration of a transition metal in the lithium manganese-based oxide for each region, and a lithium secondary battery including the same.
    Type: Application
    Filed: November 26, 2024
    Publication date: March 13, 2025
    Applicant: ECOPRO BM CO., LTD.
    Inventors: Ra Na LIM, A Reum YANG, Gyun Joong KIM, Kyung Min LIM, Hye Bin KIM
  • Patent number: 12199281
    Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a positive electrode active material which includes an overlithiated lithium manganese-based oxide including at least lithium, nickel, manganese and a doping metal, and in which the degradation in stability caused by excessive amounts of lithium and manganese in the lithium manganese-based oxide is mitigated and/or prevented by controlling the concentration of a transition metal in the lithium manganese-based oxide for each region, and a lithium secondary battery including the same.
    Type: Grant
    Filed: March 23, 2023
    Date of Patent: January 14, 2025
    Assignee: ECOPRO BM CO., LTD.
    Inventors: Ra Na Lim, A Reum Yang, Gyun Joong Kim, Kyung Min Lim, Hye Bin Kim
  • Publication number: 20240234706
    Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a positive electrode active material including an overlithiated lithium manganese-based oxide, and capable of preventing the degradation in electrochemical properties of a lithium secondary battery, including rate characteristics, caused by an excess of lithium and manganese in the lithium manganese-based oxide, and particularly reducing side reactions between the lithium manganese-based oxide and a liquid electrolyte during high-voltage operation, and a lithium secondary battery including the same.
    Type: Application
    Filed: April 28, 2023
    Publication date: July 11, 2024
    Applicant: ECOPRO BM CO., LTD.
    Inventors: Ra Na LIM, Hyun Su JUNG, Kyung Min LIM, Hye Bin KIM
  • Publication number: 20240145694
    Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a positive electrode active material including an overlithiated lithium manganese-based oxide, and capable of preventing the degradation of electrochemical properties of a lithium secondary battery, including rate characteristics, caused by an excess of lithium and manganese in the lithium manganese-based oxide and reducing side reactions between the lithium manganese-based oxide and a liquid electrolyte during high-voltage operation through induction of the growth of primary particles constituting the lithium manganese-based oxide.
    Type: Application
    Filed: May 9, 2023
    Publication date: May 2, 2024
    Applicant: ECOPRO BM CO., LTD.
    Inventors: Ra Na LIM, Hyun Su JUNG, Kyung Min LIM, Eun Hee PARK, Seong Kyun KIM
  • Publication number: 20240145692
    Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a positive electrode active material including an overlithiated lithium manganese-based oxide, and capable of preventing the electrochemical properties of a lithium secondary battery, including rate characteristics, from deteriorating due to lithium and manganese being present in excess in the lithium manganese-based oxide and reducing side reactions between the lithium manganese-based oxide and a liquid electrolyte during high-voltage operation by inducing the growth of a primary particle constituting the lithium manganese-based oxide, and a lithium secondary battery including the same.
    Type: Application
    Filed: April 20, 2023
    Publication date: May 2, 2024
    Applicant: ECOPRO BM CO., LTD.
    Inventors: Ra Na LIM, Hyun Su JUNG, Kyung Min LIM
  • Publication number: 20240145695
    Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a bimodal-type positive electrode active material for improving the low energy density per unit volume of an overlithiated lithium manganese-based oxide and a lithium secondary battery including the same.
    Type: Application
    Filed: May 25, 2023
    Publication date: May 2, 2024
    Applicant: ECOPRO BM CO., LTD.
    Inventors: Ra Na LIM, Hyun Su JUNG, Kyung Min LIM, Eun Hee PARK, Seong Kyun KIM
  • Publication number: 20240145677
    Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a bimodal-type positive electrode active material which is capable of improving the low energy density per unit volume of an overlithiated lithium manganese-based oxide, preventing the degradation of electrochemical properties of a lithium secondary battery, including rate characteristics, caused by an excess of lithium and manganese in the lithium manganese-based oxide, and particularly preventing the lifetime deterioration of a lithium secondary battery by inhibiting or mitigating the release of a transition metal from the lithium manganese-based oxide, and a lithium secondary battery including the same.
    Type: Application
    Filed: May 25, 2023
    Publication date: May 2, 2024
    Applicant: ECOPRO BM CO., LTD.
    Inventors: Ra Na LIM, Hyun Su JUNG, Kyung Min LIM, Eun Hee PARK, Seong Kyun KIM
  • Publication number: 20240145693
    Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a positive electrode active material including an overlithiated lithium manganese-based oxide, which is able to prevent the degradation of the electrochemical properties of a lithium secondary battery, including rate characteristics, caused by an excess of lithium and manganese in the lithium manganese-based oxide by inducing the growth of primary particles constituting the lithium manganese-based oxide, and prevent the lifetime deterioration of a lithium secondary battery by reducing side reactions between the lithium manganese-based oxide and a liquid electrolyte particularly during high-voltage operation, and at the same time, inhibiting or mitigating the release of a transition metal from the lithium manganese-based oxide, and a lithium secondary battery including the same.
    Type: Application
    Filed: May 3, 2023
    Publication date: May 2, 2024
    Applicant: ECOPRO BM CO., LTD.
    Inventors: Ra Na LIM, Hyun Su JUNG, Kyung Min LIM, Eun Hee PARK, Seong Kyun KIM
  • Publication number: 20240136513
    Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a positive electrode active material including an overlithiated lithium manganese-based oxide, and capable of preventing the degradation in electrochemical properties of a lithium secondary battery, including rate characteristics, caused by an excess of lithium and manganese in the lithium manganese-based oxide, and particularly reducing side reactions between the lithium manganese-based oxide and a liquid electrolyte during high-voltage operation, and a lithium secondary battery including the same.
    Type: Application
    Filed: April 27, 2023
    Publication date: April 25, 2024
    Applicant: ECOPRO BM CO., LTD.
    Inventors: Ra Na LIM, Hyun Su JUNG, Kyung Min LIM, Hye Bin KIM
  • Patent number: 11951479
    Abstract: The present invention relates to a method of inhibiting, delaying, or reversing cellular senescence that includes having an isolated cell flow through a microchannel, and crashing the cell in flow into an impact surface installed on a flow path of the cell to apply a physical impact to the cell, resulting in inhibiting, delaying, or reversing senescence of the cell, while maintaining high biological activity, and in particular, it relates to a method that can further increase the value of a stem cell as a therapeutic cell for various degenerative diseases by maintaining undifferentiated state of the stem cell even during a long-term culture period to maintain multipotency, and to the cells obtained by the method.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: April 9, 2024
    Assignees: KONKUK UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION, KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Ssang-Goo Cho, Aram Chung, Kyung Min Lim, Geunho Kang, Soobin Jang
  • Publication number: 20240043797
    Abstract: The present disclosure relates to a method for mass production of extracellular vesicles by using a noxa protein-derived peptide and mesenchymal stem cells and, more specifically, to a method for mass production of extracellular vesicles having wound healing and immunomodulatory effects, wherein mesenchymal stem cells are cultured in a medium composition containing a noxa protein-derived peptide, glucose, sucrose, and 3-(N-morpholino)propanesulfonic acid [MOPS], whereby the extracellular vesicles can be obtained at high yield with high purity.
    Type: Application
    Filed: December 10, 2021
    Publication date: February 8, 2024
    Inventors: Tae-Hyoung KIM, Jung Hee PARK, Ji-Hye HAN, Seung-Hyun MYUNG, Ssang-Goo CHO, Kyung Min LIM, Yoon Joo LEE
  • Publication number: 20230268497
    Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a positive electrode active material, which includes an overlithiated lithium manganese-based oxide, which is a solid solution with a phase belonging to a C2/m space group and a phase belonging to an R3-m space group and in which stability degradation caused by excessive amounts of lithium and manganese in the lithium manganese-based oxide is mitigated and/or prevented because there are regions with different proportions of the phase belonging to the C2/m space group and the phase belonging to the R3-m space group in the lithium manganese-based oxide, and a lithium secondary battery including the same.
    Type: Application
    Filed: April 28, 2023
    Publication date: August 24, 2023
    Applicant: ECOPRO BM CO., LTD.
    Inventors: Ra Na LIM, A Reum YANG, Gyun Joong KIM, Kyung Min LIM, Hye Bin KIM
  • Publication number: 20230261179
    Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a positive electrode active material which includes an overlithiated lithium manganese-based oxide including at least lithium, nickel, manganese and a doping metal, and in which the degradation in stability caused by excessive amounts of lithium and manganese in the lithium manganese-based oxide is mitigated and/or prevented by controlling the concentration of a transition metal in the lithium manganese-based oxide for each region, and a lithium secondary battery including the same.
    Type: Application
    Filed: March 23, 2023
    Publication date: August 17, 2023
    Applicant: ECOPRO BM CO., LTD.
    Inventors: Ra Na LIM, A Reum YANG, Gyun Joong KIM, Kyung Min LIM, Hye Bin KIM
  • Publication number: 20230231128
    Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a positive electrode active material which includes a lithium-rich lithium manganese-based oxide containing at least lithium, nickel, manganese and molybdenum, wherein the lithium manganese-based oxide includes at least one primary particle and a molybdenum-containing flux is used to improve the crystal growth of the primary particle, resulting in mitigation and/or prevention of a decrease in stability caused by lithium and manganese present in excessive amounts in the lithium manganese-based oxide, and a lithium secondary battery including the same.
    Type: Application
    Filed: March 22, 2023
    Publication date: July 20, 2023
    Applicant: ECOPRO BM CO., LTD.
    Inventors: Ra Na LIM, A Reum YANG, Gyun Joong KIM, Kyung Min LIM, Hye Bin KIM
  • Publication number: 20230220348
    Abstract: The present disclosure relates to a method for producing extracellular vesicles from three-dimensionally cultured stem cells. The method of the present disclosure can produce stem cell-derived extracellular vesicles with a high yield through orbital shaking culture of stem cell aggregates in the presence of TGF-? and thus can be usefully used in an industrial-scale mass production process of exosomes that can be utilized as a pharmaceutical ingredient substituting for a cell therapeutic agent. Furthermore, the exosomes obtained by the method of the present disclosure have significantly improved immunoregulatory functions as compared to the exosomes produced by the existing method and, therefore, can be applied as a superior therapeutic composition for various inflammations or autoimmune diseases.
    Type: Application
    Filed: April 28, 2021
    Publication date: July 13, 2023
    Applicant: KONKUK UNIVERSITY INDUSTRIAL COOPERATION CORP
    Inventors: Ssang-Goo CHO, Sehee KIM, Kyung Min LIM
  • Publication number: 20220347225
    Abstract: The present disclosure relates to a composition containing extracellular vesicles isolated from skeletal muscle-derived stem cells as active ingredients, which exhibits the effect of skin aging delay, wound healing, scar reduction and skin whitening, thereby improving skin condition. The present disclosure can not only utilize tissues wasted after surgical operation, thus allowing easy supply of raw materials, but also takes advantage of natural substances, thereby being free from the risk of side effects even upon long-term administration. The composition of the present disclosure promotes the secretion of collagen, reduces reactive oxygen species and promotes re-epithelialization at wound site while remarkably inhibiting melanocyte proliferation, tyrosinase activity and melanogenesis. Accordingly, it can facilitate effective recovery from skin tissue damage caused by oxidative stress, physical wound, intrinsic aging at cell or tissue levels, or hyperpigmentation.
    Type: Application
    Filed: August 7, 2020
    Publication date: November 3, 2022
    Applicants: Konkuk University Industrial Cooperation Corp., Konkuk University Glocal Industry-Academic Collaboration Foundation
    Inventors: Ssang-Goo CHO, Hyun Jin SHIN, Kyung Min LIM, Min Chan GIL, Ahmed ABDEL DAYEM