Patents by Inventor Sujin BYUN

Sujin BYUN 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: 11621421
    Abstract: An organic positive electrode active material for aqueous redox flow batteries, and more particularly, to technology of applying an organic positive electrode active material to make up for the drawbacks of conventional aqueous redox flow batteries. An aqueous redox flow battery to which a particular positive electrode active material is applied has no problems regarding metal deposition, and can also be useful in realizing a high energy density because the positive electrode active material may be used at high concentration due to an increase in solubility in a solvent, attaining a high working voltage, and enhancing energy efficiency. Also, the aqueous redox flow battery has excellent economic feasibility because an expensive organic electrolyte is not used.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: April 4, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Sujin Byun, Sungyeon Kim, Bong Hyun Jeong, Tae Geun Noh, Jeongbae Lee, Esder Kang
  • Patent number: 11309565
    Abstract: A redox flow battery including an electrode assembly, the electrode assembly including a carbon block having pores and a flow frame having a first and a second surface, wherein the carbon block is accommodated on one or both of the first and second surfaces.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: April 19, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Jeongbae Lee, Tae Geun Noh, Sujin Byun, Joon Ho Park, Sikwon Moon, Sungyeon Kim
  • Patent number: 11309554
    Abstract: The present invention relates to a method for regenerating an electrolyte liquid of a flow battery, and a device for regenerating an electrolyte liquid of a flow battery. The method involves operating a flow battery, stopping the operation of the flow battery, mixing the anode electrolyte liquid and the cathode electrolyte liquid of the flow battery, electrically oxidizing or reducing the mixed electrolyte liquid and dividing the oxidized or reduced electrolyte liquid into each of a cathode electrolyte liquid storage unit and a anode electrolyte liquid storage unit. The device includes a flow battery and a flow battery for regeneration.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: April 19, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Geungi Min, Tae Geun Noh, Sikwon Moon, Jeongbae Lee, Bong Hyun Jeong, Sujin Byun, Sungyeon Kim, Joon Ho Park
  • Publication number: 20210336264
    Abstract: An organic positive electrode active material for aqueous redox flow batteries, and more particularly, to technology of applying an organic positive electrode active material to make up for the drawbacks of conventional aqueous redox flow batteries. An aqueous redox flow battery to which a particular positive electrode active material is applied has no problems regarding metal deposition, and can also be useful in realizing a high energy density because the positive electrode active material may be used at high concentration due to an increase in solubility in a solvent, attaining a high working voltage, and enhancing energy efficiency. Also, the aqueous redox flow battery has excellent economic feasibility because an expensive organic electrolyte is not used.
    Type: Application
    Filed: July 7, 2021
    Publication date: October 28, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Sujin BYUN, Sungyeon KIM, Bong Hyun JEONG, Tae Geun NOH, Jeongbae LEE, Esder KANG
  • Patent number: 10826100
    Abstract: The present specification relates to a polymer electrolyte membrane, an electrochemical battery including the polymer electrolyte membrane, an electrochemical battery module including the electrochemical battery, a flow battery including the polymer electrolyte membrane, a method for manufacturing a polymer electrolyte membrane, and an electrolyte solution for a flow battery.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: November 3, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Jeongbae Lee, Tae Geun Noh, Bong Hyun Jeong, Geungi Min, Sikwon Moon, Sujin Byun
  • Patent number: 10763532
    Abstract: The present invention relates to an electrolyte storage unit applicable to redox flow batteries and a vanadium redox flow battery including the same. The electrolyte storage unit for redox flow batteries of the present invention can be useful in minimizing a contact area of an electrolyte with the air to improve a self-discharge phenomenon of a battery and solving a problem such as an imbalance between a concentration and a volume of the electrolyte, which is caused during battery driving. Accordingly, a cycle of a process of regenerating an electrolyte can be delayed, and capacity and lifespan characteristics of the battery can be improved. Also, the electrolyte storage unit of the present invention can be easily handled and installed because electrolytes may not be easily mixed even by external impact.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: September 1, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Jeongbae Lee, Tae Geun Noh, Sikwon Moon, Sujin Byun, Joon Ho Park
  • Patent number: 10711093
    Abstract: The present specification relates to an ion exchange membrane, an electrochemical cell, a flow battery and a fuel cell comprising the same, and a method for manufacturing the same.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: July 14, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Sikwon Moon, Tae Geun Noh, Sungyeon Kim, Sujin Byun, Bong Hyun Jeong, Geungi Min, Jeongbae Lee
  • Patent number: 10673078
    Abstract: The present invention relates to a bipolar plate with fibrous conductive materials inserted into the flow path and a redox flow battery including the bipolar plate. It is possible to realize the redox flow battery having an excellent energy efficiency while improving the charging/discharging capacity and efficiency regardless of the flow rate of the electrolyte solution, by increasing the retention time of the electrolyte solution in the flow path by the fibrous conductive materials to increase the chance of reaction with the electrode layer.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: June 2, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Sujin Byun, Tae Geun Noh, Jeongbae Lee
  • Publication number: 20190321814
    Abstract: The present specification relates to an ion exchange membrane, an electrochemical cell, a flow battery and a fuel cell comprising the same, and a method for manufacturing the same.
    Type: Application
    Filed: February 21, 2017
    Publication date: October 24, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Sikwon MOON, Tae Geun NOH, Sungyeon KIM, Sujin BYUN, Bong Hyun JEONG, Geungi MIN, Jeongbae LEE
  • Patent number: 10418646
    Abstract: The present specification relates to a composite membrane containing an ion transfer polymer and a method for preparing the same.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: September 17, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Sikwon Moon, Tae Geun Noh, Bong Hyun Jeong, Geungi Min, Jeongbae Lee, Sujin Byun
  • Publication number: 20190280316
    Abstract: The present invention relates to a method for regenerating an electrolyte liquid of a flow battery, and a device for regenerating an electrolyte liquid of a flow battery. The method involves operating a flow battery, stopping the operation of the flow battery, mixing the anode electrolyte liquid and the cathode electrolyte liquid of the flow battery, electrically oxidizing or reducing the mixed electrolyte liquid and dividing the oxidized or reduced electrolyte liquid into each of a cathode electrolyte liquid storage unit and a anode electrolyte liquid storage unit. The device includes a flow battery and a flow battery for regeneration.
    Type: Application
    Filed: February 9, 2018
    Publication date: September 12, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Geungi MIN, Tae Geun NOH, Sikwon MOON, Jeongbae LEE, Bong Hyun JEONG, Sujin BYUN, Sungyeon KIM, Joon Ho PARK
  • Publication number: 20190260054
    Abstract: A redox flow battery including an electrode assembly, the electrode assembly including a carbon block having pores and a flow frame having a first and a second surface, wherein the carbon block is accommodated on one or both of the first and second surfaces.
    Type: Application
    Filed: February 26, 2018
    Publication date: August 22, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Jeongbae LEE, Tae Geun NOH, Sujin BYUN, Joon Ho PARK, Sikwon MOON, Sungyeon KIM
  • Publication number: 20190221847
    Abstract: An organic positive electrode active material for aqueous redox flow batteries, and more particularly, to technology of applying an organic positive electrode active material to make up for the drawbacks of conventional aqueous redox flow batteries. An aqueous redox flow battery to which a particular positive electrode active material is applied has no problems regarding metal deposition, and can also be useful in realizing a high energy density because the positive electrode active material may be used at high concentration due to an increase in solubility in a solvent, attaining a high working voltage, and enhancing energy efficiency. Also, the aqueous redox flow battery has excellent economic feasibility because an expensive organic electrolyte is not used.
    Type: Application
    Filed: September 22, 2017
    Publication date: July 18, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Sujin BYUN, Sungyeon KIM, Bong Hyun JEONG, Tae Geun NOH, Jeongbae LEE, Esder KANG
  • Publication number: 20190103622
    Abstract: The present invention relates to an electrolyte storage unit applicable to redox flow batteries and a vanadium redox flow battery including the same. The electrolyte storage unit for redox flow batteries of the present invention can be useful in minimizing a contact area of an electrolyte with the air to improve a self-discharge phenomenon of a battery and solving a problem such as an imbalance between a concentration and a volume of the electrolyte, which is caused during battery driving. Accordingly, a cycle of a process of regenerating an electrolyte can be delayed, and capacity and lifespan characteristics of the battery can be improved. Also, the electrolyte storage unit of the present invention can be easily handled and installed because electrolytes may not be easily mixed even by external impact.
    Type: Application
    Filed: September 21, 2017
    Publication date: April 4, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Jeongbae LEE, Tae Geun NOH, Sikwon MOON, Sujin BYUN, Joon Ho PARK
  • Publication number: 20180331373
    Abstract: The present invention relates to a bipolar plate with fibrous conductive materials inserted into the flow path and a redox flow battery including the bipolar plate. It is possible to realize the redox flow battery having an excellent energy efficiency while improving the charging/discharging capacity and efficiency regardless of the flow rate of the electrolyte solution, by increasing the retention time of the electrolyte solution in the flow path by the fibrous conductive materials to increase the chance of reaction with the electrode layer.
    Type: Application
    Filed: March 21, 2017
    Publication date: November 15, 2018
    Applicant: LG CHEM, LTD.
    Inventors: Sujin BYUN, Tae Geun NOH, Jeongbae LEE
  • Patent number: 10096842
    Abstract: The present specification relates to a vanadium solution, an electrolyte including the same, a secondary battery including the same, and a method for preparing the same.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: October 9, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Jeongbae Lee, Tae Geun Noh, Bong Hyun Jeong, Geungi Min, Sikwon Moon, Sujin Byun
  • Publication number: 20170346124
    Abstract: The present specification relates to a polymer electrolyte membrane, an electrochemical battery including the polymer electrolyte membrane, an electrochemical battery module including the electrochemical battery, a flow battery including the polymer electrolyte membrane, a method for manufacturing a polymer electrolyte membrane, and an electrolyte solution for a flow battery.
    Type: Application
    Filed: April 7, 2016
    Publication date: November 30, 2017
    Applicant: LG CHEM, LTD.
    Inventors: Jeongbae LEE, Tae Geun NOH, Bong Hyun JEONG, Geungi MIN, Sikwon MOON, Sujin BYUN
  • Publication number: 20170309927
    Abstract: The present specification relates to a composite membrane containing an ion transfer polymer and a method for preparing the same.
    Type: Application
    Filed: September 23, 2015
    Publication date: October 26, 2017
    Applicant: LG CHEM, LTD.
    Inventors: Sikwon MOON, Tae Geun NOH, Bong Hyun JEONG, Geungi MIN, Jeongbae LEE, Sujin BYUN
  • Publication number: 20170110738
    Abstract: The present specification relates to a vanadium solution, an electrolyte including the same, a secondary battery including the same, and a method for preparing the same.
    Type: Application
    Filed: June 12, 2015
    Publication date: April 20, 2017
    Applicant: LG CHEM, LTD.
    Inventors: Jeongbae LEE, Tae Geun NOH, Bong Hyun JEONG, Geungi MIN, Sikwon MOON, Sujin BYUN