Patents by Inventor Eun-Su Lee

Eun-Su Lee 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: 11444305
    Abstract: Disclosed are a polymer electrolyte membrane, a method of manufacturing the membrane, and a membrane-electrode assembly including the membrane. The polymer electrolyte membrane contains a porous support having a plurality of pores, a first layer including a first ion conductor that fills the pores adjoining one surface of the porous support, and a second layer including a second ion conductor that fills the pores adjoining the other surface of the porous support, wherein the first ion conductor and the second ion conductor are different from each other, and one selected from the group consisting of the first layer, the second layer, and a combination thereof includes an organic-based antioxidant.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: September 13, 2022
    Inventors: Dong-Hoon Lee, Na-Young Kim, Jung-Hwa Park, Eun-Su Lee
  • Patent number: 11302949
    Abstract: A polymer electrolyte membrane, a method for manufacturing the same, and a membrane electrode assembly containing the polymer electrolyte membrane are disclosed. The polymer electrolyte membrane includes: a fluorine-based support containing a plurality of pores due to polymer microfibrillar structures; a hybrid porous support placed on one side or both surfaces of the fluorine-based support and comprising nanowebs obtained by integrating nanofibers into a nonwoven fabric containing a plurality of pores; and ion conductors with which the pores of the porous support are filled. The polymer electrolyte membrane can reduce hydrogen permeability while being excellent in both durability and ion conductivity.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: April 12, 2022
    Inventors: Dong-Hoon Lee, Na-Young Kim, Eun-Su Lee, Jung-Hwa Park
  • Publication number: 20210036353
    Abstract: A polymer electrolyte membrane, a method for manufacturing the same, and a membrane electrode assembly containing the polymer electrolyte membrane are disclsosed. The polymer electrolyte membrane includes: a fluorine-based support containing a plurality of pores due to polymer microfibrillar structures; a hybrid porous support placed on one side or both surfaces of the fluorine-based support and comprising nanowebs obtained by integrating nanofibers into a nonwoven fabric containing a plurality of pores; and ion conductors with which the pores of the porous support are filled. The polymer electrolyte membrane can reduce hydrogen permeability while being excellent in both durability and ion conductivity.
    Type: Application
    Filed: November 30, 2018
    Publication date: February 4, 2021
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Dong-Hoon LEE, Na-Young KIM, Eun-Su LEE, Jung-Hwa PARK
  • Publication number: 20200287230
    Abstract: Disclosed are a polymer electrolyte membrane, a method of manufacturing the membrane, and a membrane-electrode assembly including the membrane. The polymer electrolyte membrane contains a porous support having a plurality of pores, a first layer including a first ion conductor that fills the pores adjoining one surface of the porous support, and a second layer including a second ion conductor that fills the pores adjoining the other surface of the porous support, wherein the first ion conductor and the second ion conductor are different from each other, and one selected from the group consisting of the first layer, the second layer, and a combination thereof includes an organic-based antioxidant.
    Type: Application
    Filed: September 27, 2018
    Publication date: September 10, 2020
    Applicant: Kolon Industries, Inc.
    Inventors: Dong-Hoon LEE, Na-Young KIM, Jung-Hwa PARK, Eun-Su LEE
  • Patent number: 10396385
    Abstract: The present invention relates to an ion exchange membrane, a method for manufacturing the same, and an energy storage device including the same, and the ion exchange membrane includes a porous support including a plurality of pores and an ion conductor filling the pores of the porous support, in which the porous support includes micropores having a size of 31 to 1000 ?m. The ion exchange membrane may achieve high energy efficiency in the case of being applied to an energy storage device such as a vanadium redox inflow battery due to high charge/discharge cycle durability, high ion-conductivity, and excellent chemical and thermal stability.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: August 27, 2019
    Assignee: KOLON INDUSTRIES, INC.
    Inventors: Eun-Su Lee, Dong-Hoon Lee, Na-Young Kim, Seung-Jib Yum
  • Publication number: 20180351192
    Abstract: The present invention relates to an ion exchange membrane, a method for manufacturing the same, and an energy storage device including the same, and the ion exchange membrane includes a porous support including a plurality of pores and an ion conductor filling the pores of the porous support, in which the porous support includes micropores having a size of 31 to 1000 ?m. The ion exchange membrane may achieve high energy efficiency in the case of being applied to an energy storage device such as a vanadium redox inflow battery due to high charge/discharge cycle durability, high ion-conductivity, and excellent chemical and thermal stability.
    Type: Application
    Filed: March 5, 2018
    Publication date: December 6, 2018
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Eun-Su LEE, Dong-Hoon LEE, Na-Young KIM, Seung-Jib YUM
  • Publication number: 20050030680
    Abstract: Disclosed is an electric outlet which comprises: a connector for extracting clock signals and data signals of input devices; a main outlet for supplying AC power to a computer; an auxiliary outlet for supplying AC power to peripheral devices; and a main controller for receiving AC power, supplying the AC power to the main outlet, determining a user's computer using states according to the clock signals and the data signals, interrupting power supply to the auxiliary outlet when the user does not use the computer for a setting time, and starting power supply to the auxiliary outlet when the user uses the computer. The clock and data signals are extracted, and when a user does not use the computer, power supply to the peripheral devices are interrupted, and when the user uses the computer, power supply to the peripheral devices is started thereby reducing power consumption during the pause period.
    Type: Application
    Filed: August 30, 2002
    Publication date: February 10, 2005
    Inventors: Eun-Su Lee, Hyun-Soo Kim