Patents by Inventor Dong Wook KOH

Dong Wook KOH 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: 20240274902
    Abstract: A battery management apparatus and method according to an embodiment of the present disclosure is directed to obtaining a positive electrode profile and a negative electrode profile for a battery cell in a non-destructive manner by appropriately adjusting a preset negative electrode profile. According to one aspect of the present disclosure, by using the battery profile and the adjusted negative electrode profile for the degraded battery cell, there is an advantage that the positive electrode profile of the degraded battery cell may be easily estimated in a non-destructive manner.
    Type: Application
    Filed: April 23, 2024
    Publication date: August 15, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Du-Seong YOON, Dong-Wook KOH, Jin-Hyung LIM, Gwang-Hoon JUN, Jeong-Mi CHOI, Yoon-Jung BAE
  • Patent number: 11990590
    Abstract: A battery management apparatus and method according to an embodiment of the present disclosure is directed to obtaining a positive electrode profile and a negative electrode profile for a battery cell in a non-destructive manner by appropriately adjusting a preset negative electrode profile. According to one aspect of the present disclosure, by using the battery profile and the adjusted negative electrode profile for the degraded battery cell, there is an advantage that the positive electrode profile of the degraded battery cell may be easily estimated in a non-destructive manner.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: May 21, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Du-Seong Yoon, Dong-Wook Koh, Jin-Hyung Lim, Gwang-Hoon Jun, Jeong-Mi Choi, Yoon-Jung Bae
  • Publication number: 20230318057
    Abstract: A battery management apparatus includes: a measuring unit to measure voltage and capacity of a battery cell; a profile generating unit to generate a battery profile representing a correspondence between the voltage and the capacity measured by the measuring unit and generate a positive electrode profile of the battery cell based on the generated battery profile and a reference negative electrode profile and a reference negative electrode differential profile preset for the battery cell; and a control unit configured to receive the generated positive electrode profile from the profile generating unit, derive a conversion function representing conversion information from the reference positive electrode profile to the generated positive electrode profile, generate a positive electrode prediction profile for the battery cell from the reference positive electrode profile based on the derived conversion function, and generate a battery prediction profile for the battery cell based on the generated positive electro
    Type: Application
    Filed: June 23, 2021
    Publication date: October 5, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Du-Seong YOON, Dong-Wook KOH, Jin-Hyung LIM, Gwang-Hoon JUN, Jeong-Mi CHOI, Yoon-Jung BAE
  • Publication number: 20230207910
    Abstract: A battery management apparatus and method according to an embodiment of the present disclosure is directed to obtaining a positive electrode profile and a negative electrode profile for a battery cell in a non-destructive manner by appropriately adjusting a preset negative electrode profile. According to one aspect of the present disclosure, by using the battery profile and the adjusted negative electrode profile for the degraded battery cell, there is an advantage that the positive electrode profile of the degraded battery cell may be easily estimated in a non-destructive manner.
    Type: Application
    Filed: June 3, 2021
    Publication date: June 29, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Du-Seong YOON, Dong-Wook KOH, Jin-Hyung LIM, Gwang-Hoon JUN, Jeong-Mi CHOI, Yoon-Jung BAE
  • Patent number: 10446874
    Abstract: The present disclosure relates to a lithium sulfur battery comprising a negative electrode and a positive electrode disposed opposite to each other, a separator positioned between the negative electrode and the positive electrode, and a gel polymer electrolyte positioned between the separator and the positive electrode, wherein the gel polymer electrolyte comprises LiNO3. The present disclosure relates to a lithium sulfur battery preventing degeneration caused by a shuttle effect, and the lithium sulfur battery comprises a gel polymer electrolyte configured to inhibit a transfer of a polysulfide-based material to a negative electrode so as to prevent a loss of the polysulfide formed on a positive electrode surface during charge and discharge reactions, whereby, lifespan characteristics of the lithium sulfur battery are capable of being enhanced.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: October 15, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Dong Wook Koh, Eun Kyung Park, Jong Hyun Chae, Doo Kyung Yang, Ki Young Kwon
  • Publication number: 20170263978
    Abstract: The present disclosure relates to a lithium sulfur battery comprising a negative electrode and a positive electrode disposed opposite to each other, a separator positioned between the negative electrode and the positive electrode, and a gel polymer electrolyte positioned between the separator and the positive electrode, wherein the gel polymer electrolyte comprises LiNO3. The present disclosure relates to a lithium sulfur battery preventing degeneration caused by a shuttle effect, and the lithium sulfur battery comprises a gel polymer electrolyte configured to inhibit a transfer of a polysulfide-based material to a negative electrode so as to prevent a loss of the polysulfide formed on a positive electrode surface during charge and discharge reactions, whereby, lifespan characteristics of the lithium sulfur battery are capable of being enhanced.
    Type: Application
    Filed: October 30, 2015
    Publication date: September 14, 2017
    Applicant: LG CHEM, LTD.
    Inventors: Dong Wook KOH, Eun Kyung PARK, Jong Hyun CHAE, Doo Kyung YANG, Ki Young KWON