Patents by Inventor Hee Jin Woo

Hee Jin Woo 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: 20240129725
    Abstract: A service identifying and processing method using a wireless terminal message according to an exemplary embodiment of the present invention includes (a) receiving a wireless terminal message by a first entity which is a mobile device; and (b) expressing, by a first agent which is an information processing application program installed on the first entity, entity information of second entity based on the wireless terminal message and service confirmation information related to service provided by the second entity, through an application screen by the first agent.
    Type: Application
    Filed: December 23, 2021
    Publication date: April 18, 2024
    Applicant: ESTORM CO., LTD.
    Inventors: Jong Hyun WOO, Tae Il LEE, Il Jin JUNG, Hee Jun SHIN, Hyung Seok JANG, Min Jae SON, Sang Heon BAEK, Seo Bin PARK, Hyo Sang KWON, Mi Ju KIM, Jung Hoon SONG, Rakhmanov DILSHOD, Dong Hee KIM, Jeon Gjin KIM
  • Patent number: 11411226
    Abstract: Disclosed are an electrode for fuel cells, a membrane electrode assembly for fuel cells including the same and a method for manufacturing the same in which the electrode is manufactured by forming an ionomer layer between an electrode layer and a catalyst layer and an antioxidant is dispersed into the catalyst layer of the electrode and an ion exchange layer of an electrolyte membrane so as to improve interfacial bonding force between the electrode and the electrolyte membrane, the electrode is bonded to the electrolyte membrane using a transfer process, and durability of the electrode and the electrolyte membrane is improved.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: August 9, 2022
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Hee Jin Woo, Jun Woo Kim, Jun Tae Kim, Ji Seok Hwang
  • Publication number: 20220149406
    Abstract: The present disclosure relates to a composite electrolyte membrane and a method of manufacturing the same. A catalyst composite layer in the composite electrolyte membrane uniformly includes a catalyst and an antioxidant, whereby it is possible to inhibit generation of hydrogen peroxide by side reaction. In addition, the catalyst composite layer is formed as a separate layer, whereby the catalyst composite layer is instead degraded, greatly inhibiting membrane degradation even in the case in which radicals attack an ionomer due to small side reaction. Furthermore, it is possible to control the position of the catalyst composite layer including the catalyst and the antioxidant by adjusting the thicknesses of a second ion exchange layer and the catalyst composite layer, whereby it is possible to protect a specific degradation position, and therefore it is possible to efficiently improve membrane durability.
    Type: Application
    Filed: September 8, 2021
    Publication date: May 12, 2022
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Hee Jin Woo, Min Kyung Kim
  • Patent number: 11177472
    Abstract: Disclose are a cathode of an all-solid lithium battery, and a secondary battery system using the same. The cathode includes a lithium composite, and a method of manufacturing the lithium composite comprises: dispersing a solid electrolyte to be uniformly distributed in the pores of a mesoporous conductor to provide a solid electrolyte composite, and coating the solid electrolyte composite on the surface of a lithium compound including nonmetallic solids such as S, Se, and Te.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: November 16, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Hee Jin Woo, Dae Gun Jin, Hee Yeon Ryu, Yoon Ji Lee, Yong Gu Kim, Na Ry Shin, Eun Ji Kwon, Sang Jin Park
  • Publication number: 20210151777
    Abstract: Disclosed are an electrode for fuel cells, a membrane electrode assembly for fuel cells including the same and a method for manufacturing the same in which the electrode is manufactured by forming an ionomer layer between an electrode layer and a catalyst layer and an antioxidant is dispersed into the catalyst layer of the electrode and an ion exchange layer of an electrolyte membrane so as to improve interfacial bonding force between the electrode and the electrolyte membrane, the electrode is bonded to the electrolyte membrane using a transfer process, and durability of the electrode and the electrolyte membrane is improved.
    Type: Application
    Filed: October 23, 2020
    Publication date: May 20, 2021
    Inventors: Hee Jin Woo, Jun Woo Kim, Jun Tae Kim, Ji Seok Hwang
  • Patent number: 10886550
    Abstract: A membrane electrode assembly includes: an electrolyte membrane; a catalyst electrode layer including a cathode catalyst electrode disposed on the electrolyte membrane and an anode catalyst electrode disposed under the electrolyte membrane; and a sub-gasket disposed on the electrolyte membrane to be in contact with an edge of the catalyst electrode layer. Each of the sub-gasket includes a moisture drain hole penetrating the sub-gasket to expose a portion of the electrolyte membrane outside.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: January 5, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Hee Jin Woo, Ki Sub Lee
  • Publication number: 20200075982
    Abstract: A membrane electrode assembly includes: an electrolyte membrane; a catalyst electrode layer including a cathode catalyst electrode disposed on the electrolyte membrane and an anode catalyst electrode disposed under the electrolyte membrane; and a sub-gasket disposed on the electrolyte membrane to be in contact with an edge of the catalyst electrode layer. Each of the sub-gasket includes a moisture drain hole penetrating the sub-gasket to expose a portion of the electrolyte membrane outside.
    Type: Application
    Filed: December 6, 2018
    Publication date: March 5, 2020
    Inventors: Hee Jin WOO, Ki Sub LEE
  • Publication number: 20190260021
    Abstract: Disclose are a cathode of an all-solid lithium battery, and a secondary battery system using the same. The cathode includes a lithium composite, and a method of manufacturing the lithium composite comprises: dispersing a solid electrolyte to be uniformly distributed in the pores of a mesoporous conductor to provide a solid electrolyte composite, and coating the solid electrolyte composite on the surface of a lithium compound including nonmetallic solids such as S, Se, and Te.
    Type: Application
    Filed: May 3, 2019
    Publication date: August 22, 2019
    Inventors: Hee Jin Woo, Dae Gun Jin, Hee Yeon Ryu, Yoon Ji Lee, Yong Gu Kim, Na Ry Shin, Eun Ji Kwon, Sang Jin Park
  • Patent number: 10326128
    Abstract: Disclose are a cathode of an all-solid lithium battery, and a secondary battery system using the same. The cathode includes a lithium composite, and a method of manufacturing the lithium composite comprises: dispersing a solid electrolyte to be uniformly distributed in the pores of a mesoporous conductor to provide a solid electrolyte composite, and coating the solid electrolyte composite on the surface of a lithium compound including nonmetallic solids such as S, Se, and Te.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: June 18, 2019
    Assignee: Hyundai Motor Company
    Inventors: Hee Jin Woo, Dae Gun Jin, Hee Yeon Ryu, Yoon Ji Lee, Yong Gu Kim, Na Ry Shin, Eun Ji Kwon, Sang Jin Park
  • Patent number: 10084185
    Abstract: A cathode for an all solid-state lithium sulfur battery includes a porous conductive material, which is manufactured from a precursor containing sulfur, and contains the sulfur in a backbone and a sulfur active material, which is injected into pores of the porous conductive material.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: September 25, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Hee Yeon Ryu, Hee Jin Woo, Ji Man Kim, Su Yeon Bae
  • Patent number: 10056593
    Abstract: An anode structure of a lithium sulfur battery includes a sulfur anode laminated on an aluminum foil, and a carbon coating layer disposed between the sulfur anode and a carbon structure layer in which sulfur is immersed. The sulfur anode includes the sulfur, a conductor, and a binder. The carbon structure layer in which sulfur is immersed is a polyester (PE) separation membrane separated from a counter electrode. A loaded amount of sulfur within the anode structure is dispersed to the sulfur anode and the carbon structure layer in which the sulfur is immersed.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: August 21, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Sang Jin Park, Hee Yeon Ryu, Yoon Ji Lee, Hee Jin Woo
  • Patent number: 9876223
    Abstract: Provided herein is a cathode for lithium-sulfur battery. The cathode for lithium-sulfur battery has a structure for improved in charge/discharge efficiency, charge capacity, and life span. In particular, in the cathode structure, an active material is inserted into a porous carbon structure and a surface of the porous carbon structure is densely coated with the conducting material thereby maximizing the contents of an active material and a conducting material in the cathode without a current collector.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: January 23, 2018
    Assignee: Hyundai Motor Company
    Inventors: Hee Yeon Ryu, Yoon Ji Lee, Hee Jin Woo, Sang Jin Park
  • Publication number: 20160308204
    Abstract: A cathode for an all solid-state lithium sulfur battery includes a porous conductive material, which is manufactured from a precursor containing sulfur, and contains the sulfur in a backbone and a sulfur active material, which is injected into pores of the porous conductive material.
    Type: Application
    Filed: November 4, 2015
    Publication date: October 20, 2016
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Hee Yeon RYU, Hee Jin WOO, Ji Man KIM, Su Yeon BAE
  • Publication number: 20160190565
    Abstract: Disclose are a cathode of an all-solid lithium battery, and a secondary battery system using the same. The cathode includes a lithium composite, and a method of manufacturing the lithium composite comprises: dispersing a solid electrolyte to be uniformly distributed in the pores of a mesoporous conductor to provide a solid electrolyte composite, and coating the solid electrolyte composite on the surface of a lithium compound including nonmetallic solids such as S, Se, and Te.
    Type: Application
    Filed: November 9, 2015
    Publication date: June 30, 2016
    Inventors: Hee Jin Woo, Dae Gun Jin, Hee Yeon Ryu, Yoon Ji Lee, Yong Gu Kim, Na Ry Shin, Eun Ji Kwon, Sang Jin Park
  • Publication number: 20160181666
    Abstract: A lithium-sulfur battery with improved cell performance may include a carbon layer. A high loading anode is needed to increase energy density, but it is difficult to express capacity when testing a cell of the high loading anode. To retain electrolyte solution so as to improve cell performance when loading is increased, a conductive structure may be inserted to the cell, thereby providing not only electrolyte solution-retaining but also a reaction site.
    Type: Application
    Filed: November 23, 2015
    Publication date: June 23, 2016
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Yoon Ji LEE, Dae Gun JIN, Hee Jin WOO, Hee Yeon RYU, Sang Jin PARK
  • Patent number: 9306207
    Abstract: Disclosed is method of fabricating sulfur-infiltrated mesoporous conductive nanocomposites for a cathode of a lithium-sulfur secondary battery, whereby a cathode material having a relatively high content of sulfur is fabricated and a high energy density in a lithium-sulfur secondary battery is realized, including: a) performing thermal treatment on sulfur particles in a reactor at a high temperature to melt the sulfur particles; b) adding a mesoporous conductive material in macroscale to a sulfur solution in the reactor; c) pressurizing the mesoporous conductive material in macroscale in the reactor so that the mesoporous conductive material in macroscale is completely immersed in the sulfur solution, and then maintaining the pressurized and molten state; d) cooling the sulfur particles and the mesoporous conductive material in macroscale so that sulfur within pores of the mesoporous conductive material in macroscale is crystallized; and e) grinding sulfur-infiltrated mesoporous conductive composites to fabri
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: April 5, 2016
    Assignee: Hyundai Motor Company
    Inventors: Hee Jin Woo, Hee Yeon Ryu
  • Publication number: 20160056501
    Abstract: Disclosed are a lithium electrode for a lithium metal battery, which uses a solid high-ionic conductor having a three-dimensional (3D) porous structure, wherein a lithium metal or lithium alloy is filled into each pore and dispersed, and a method for manufacturing the lithium electrode. By applying a solid high-ionic conductor having a 3D porous structure, an ion conduction path is secured in the lithium electrode using the solid high-ionic conductor instead of a conventional liquid electrolyte, electrical-chemical reactivity in charging and discharging are further improved, and shelf life and high rate capability are enhanced.
    Type: Application
    Filed: November 4, 2015
    Publication date: February 25, 2016
    Inventors: Hee Yeon Ryu, Yoon Ji Lee, Hee Jin Woo, Jun Ki Rhee, Ki Chun Lee
  • Publication number: 20150372291
    Abstract: Disclosed is a cathode for lithium-sulfur battery. The cathode for lithium-sulfur battery has a structure for improved in charge/discharge efficiency, charge capacity, and life span. In particular, in the cathode structure, an active material is inserted into a porous carbon structure and a surface of the porous carbon structure is densely coated with the conducting material thereby maximizing the contents of an active material and a conducting material in the cathode without a current collector.
    Type: Application
    Filed: April 8, 2015
    Publication date: December 24, 2015
    Inventors: Hee Yeon Ryu, Yoon Ji Lee, Hee Jin Woo, Sang Jin Park
  • Patent number: 9190658
    Abstract: Disclosed are a lithium electrode for a lithium metal battery, which uses a solid high-ionic conductor having a three-dimensional (3D) porous structure, wherein a lithium metal or lithium alloy is filled into each pore and dispersed, and a method for manufacturing the lithium electrode. By applying a solid high-ionic conductor having a 3D porous structure, an ion conduction path is secured in the lithium electrode using the solid high-ionic conductor instead of a conventional liquid electrolyte, electrical-chemical reactivity in charging and discharging are further improved, and shelf life and high rate capability are enhanced.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: November 17, 2015
    Assignee: Hyundai Motor Company
    Inventors: Hee Yeon Ryu, Yoon Ji Lee, Hee Jin Woo, Jun Ki Rhee, Ki Chun Lee
  • Publication number: 20150311489
    Abstract: An anode structure of a lithium sulfur battery includes a sulfur anode laminated on an aluminum foil, and a carbon coating layer disposed between the sulfur anode and a carbon structure layer in which sulfur is immersed. The sulfur anode includes thesulfur, a conductor, and a binder. The carbon structure layer in which sulfur is immersed is a polyester (PE) separation membrane separated from a counter electrode. A loaded amount of sulfur within the anode structure is dispersed to the sulfur anode and the carbon structure layer in which the sulfur is immersed.
    Type: Application
    Filed: December 12, 2014
    Publication date: October 29, 2015
    Inventors: Sang Jin PARK, Hee Yeon RYU, Yoon Ji LEE, Hee Jin WOO