Patents by Inventor Yoo Chang Yang

Yoo Chang Yang 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: 11121380
    Abstract: The present disclosure relates to a fuel cell stack having a cathode-side separator and an anode-side separator which are made of different materials to prevent performance degradation of stacks and corrosion and damage of components. A fuel cell stack according to exemplary embodiments of the present disclosure may have multiple unit cells stacked therein, in which each unit cell of the multiple unit cells may include: a membrane electrode assembly (MEA); a pair of gas diffusion layers (GDLs) disposed on opposite surfaces of the MEA; and an anode-side separator and a cathode-side separator disposed to face each other, the MEA and the pair of GDLs being disposed therebetween, in which the cathode-side separator has a corrosion resistance higher than a corrosion resistance of the anode-side separator.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: September 14, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Dae Il Yoon, Yoo Chang Yang
  • Publication number: 20210184239
    Abstract: An elastomeric cell frame for a fuel cell according to an embodiment of the present disclosure includes, as a cell frame constituting a unit cell of a fuel cell, an insert including a membrane electrode assembly having an anode formed on one surface of a polymer electrolyte membrane, and having a cathode formed on the other surface thereof, and a pair of gas diffusion layers disposed on both surfaces thereof; and an elastomeric frame disposed to surround the rim of the insert in the outer region of the insert, and formed with a discharge flow field provided in the form of a sheet bonded at the rim of the insert and the interface thereof while being thermally bonded and for discharging generated water generated in the insert along the longitudinal direction at the widthwise edge.
    Type: Application
    Filed: June 8, 2020
    Publication date: June 17, 2021
    Inventors: Jin Hyeok Yoo, Yoo Chang Yang, Byeong-Heon Jeong
  • Patent number: 11031609
    Abstract: Disclosed herein is a fuel cell stack with improved manufacturing performance. The fuel cell stack includes: a separator that comprises a diffusion part, as being provided with a diffusion channel, configured to distribute reaction gas and cooling water and a reaction part, as being continuously formed from the diffusion part and provided with a reaction channel that has a height greater than that of the diffusion channel, configured to move reaction gas distributed from the diffusion part and generate electrons by a chemical reaction; and a gas diffusion layer configured to contact the separator at the diffusion part and the reaction part.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: June 8, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sang Mun Jin, Yoo Chang Yang
  • Patent number: 10826082
    Abstract: A fuel cell and a method for producing the same are provided. The fuel cell includes a membrane electrode assembly and a gas diffusion layer that is disposed at each of opposite surfaces of the membrane electrode assembly, and includes a plurality of compressed parts that are formed by pressure at positions spaced out at predetermined intervals on the gas diffusion layer. The fuel cell further includes a separator that is in contact with an outer surface of the gas diffusion layer, and has a plurality of land parts that protrude toward the gas diffusion layer, and a plurality of channel parts that form flow paths between the land parts. The land parts respectively protrude toward the compressed parts of the gas diffusion layer to come in contact with the compressed parts.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: November 3, 2020
    Assignee: Hyundai Motor Company
    Inventors: Suk Min Baeck, Dae Il Yoon, Yoo Chang Yang, Kook Il Han
  • Patent number: 10818936
    Abstract: A separator for a fuel cell includes: a metal base material; and a carbon coating layer formed on one surface or both surfaces of the metal base material, in which roughness Ra formed at an interface between the metal base material and the carbon coating layer may be in a range of 20 to 78 nm.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: October 27, 2020
    Assignees: HYUNDAI MOTOR COMPANY, DONGWOO HST CO., LTD.
    Inventors: Bokyung Kim, Yoo Chang Yang, Woong Pyo Hong, Seungkoo Lee, Jungyeon Park, Su Jung Noh, Seung Jeong Oh, Daeil Yoon, In Woong Lyo, Kyungmin Kim
  • Patent number: 10777837
    Abstract: A fuel cell stack may include stacking multiple cell units, each of which has a metal first separator plate and a second separator plate positioned opposite to the first separator plate with a membrane electrode assembly interposed therebetween, wherein the first and second separator plates of adjacent cell units are disposed to face each other and bonded to each other by an adhesive, the adhesive having an adhesive property varying according to a temperature change.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: September 15, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Seong Il Heo, Yoo Chang Yang, Byeong-Heon Jeong
  • Publication number: 20200185730
    Abstract: A separator assembly for a fuel cell includes: a first separator having a protruding bead seal providing a seal; a second separator joined to the first separator to be integrated therewith and having an arched bulge protruding in the same direction as the bead seal at a location corresponding to a location where the bead seal is formed; a gasket provided on a concave surface of the bulge of the second separator at the location where the bulge is formed, the concave surface being opposite to a convex surface of the bulge; and a sealing agent applied to a convex surface of the bead seal of the first separator at the location where the bead seal is formed.
    Type: Application
    Filed: April 3, 2019
    Publication date: June 11, 2020
    Inventors: Seong Il Heo, Yoo Chang Yang, Byeong-Heon Jeong
  • Publication number: 20200185729
    Abstract: The present disclosure relates to a fuel cell stack having a cathode-side separator and an anode-side separator which are made of different materials to prevent performance degradation of stacks and corrosion and damage of components. A fuel cell stack according to exemplary embodiments of the present disclosure may have multiple unit cells stacked therein, in which each unit cell of the multiple unit cells may include: a membrane electrode assembly (MEA); a pair of gas diffusion layers (GDLs) disposed on opposite surfaces of the MEA; and an anode-side separator and a cathode-side separator disposed to face each other, the MEA and the pair of GDLs being disposed therebetween, in which the cathode-side separator has a corrosion resistance higher than a corrosion resistance of the anode-side separator.
    Type: Application
    Filed: July 19, 2019
    Publication date: June 11, 2020
    Inventors: Dae Il Yoon, Yoo Chang Yang
  • Publication number: 20200119385
    Abstract: A fuel cell stack may include stacking multiple cell units, each of which has a metal first separator plate and a second separator plate positioned opposite to the first separator plate with a membrane electrode assembly interposed therebetween, wherein the first and second separator plates of adjacent cell units are disposed to face each other and bonded to each other by an adhesive, the adhesive having an adhesive property varying according to a temperature change.
    Type: Application
    Filed: November 21, 2018
    Publication date: April 16, 2020
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Seong Il Heo, Yoo Chang Yang, Byeong-Heon Jeong
  • Publication number: 20190348690
    Abstract: Disclosed herein is a fuel cell stack with improved manufacturing performance. The fuel cell stack includes: a separator that comprises a diffusion part, as being provided with a diffusion channel, configured to distribute reaction gas and cooling water and a reaction part, as being continuously formed from the diffusion part and provided with a reaction channel that has a height greater than that of the diffusion channel, configured to move reaction gas distributed from the diffusion part and generate electrons by a chemical reaction; and a gas diffusion layer configured to contact the separator at the diffusion part and the reaction part.
    Type: Application
    Filed: July 22, 2019
    Publication date: November 14, 2019
    Inventors: Sang Mun Jin, Yoo Chang Yang
  • Patent number: 10403910
    Abstract: Disclosed herein is a fuel cell stack with improved manufacturing performance. The fuel cell stack includes: a separator that comprises a diffusion part, as being provided with a diffusion channel, configured to distribute reaction gas and cooling water and a reaction part, as being continuously formed from the diffusion part and provided with a reaction channel that has a height greater than that of the diffusion channel, configured to move reaction gas distributed from the diffusion part and generate electrons by a chemical reaction; and a gas diffusion layer configured to contact the separator at the diffusion part and the reaction part.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: September 3, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sang Mun Jin, Yoo Chang Yang
  • Patent number: 10381675
    Abstract: A fuel cell stack includes a first separator and a second separator that are adhered to face each other between adjacent membrane electrode assemblies (MEAs) and each have a plurality of manifolds, a reacting region, and a guide region disposed between the plurality of manifolds and the reacting region. In the fuel cell stack, a first cooling medium guide channel guiding flow of a cooling medium between the plurality of manifolds and the reacting region is formed in the guide region of the first separator; a second cooling medium guide channel guiding flow of the cooling medium between the plurality of manifolds and the reacting region is formed in the guide region of the second separator; and at least portions of the first cooling medium guide channel and the second cooling medium guide channel overlap to communicate with each other.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: August 13, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sang Mun Jin, Yoo Chang Yang
  • Patent number: 10355288
    Abstract: A fuel cell includes a reaction layer including: a membrane electrode assembly (MEA); and gas diffusion layers (GDLs) each of which is disposed at both side surfaces of the MEA. A porous separation layer has one surface adhered to one surface of the reaction layer and supplied with reaction gas, and a cathode bipolar plate has a panel shape and adhered to another surface of the porous separation layer. A front end part of the cathode bipolar plate having a manifold that is supplied with the reaction gas and having a plurality of diffusion channels through which the reaction gas directs from the manifold toward the porous separation layer. The cathode bipolar plate has a partition wall channel which separates the porous separation layer, which extends in a direction in which the reaction gas flows, and which extends from the manifold in a diagonal direction.
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: July 16, 2019
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Kyung Min Kim, Yoo Chang Yang, Sang Mun Jin
  • Patent number: 10347922
    Abstract: A separator assembly for a fuel cell having an anode separator, a cathode separator, a cooling surface frame, and a gasket. In particular, the cooling surface frame is integrally bonded between peripheral portions of the anode separator and the cathode separator. Additionally, the gasket encloses the peripheral portions of the anode separator and the cathode separator between which the cooling surface frame is interposed.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: July 9, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sang Moon Jin, Yoo Chang Yang, Suk Min Baeck
  • Patent number: 10305120
    Abstract: A porous panel for a separator of a fuel cell includes a plate-shaped material and uneven lines repeatedly arranged on the porous panel in a direction crossing a gas flow direction. The porous panel is bent at the uneven lines such that upward and downward uneven portions are repeated, and through holes permitting passage of gas formed on opposite sides of each of the uneven lines have an uneven shape.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: May 28, 2019
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Sang Mun Jin, Yoo Chang Yang
  • Patent number: 10305123
    Abstract: A fuel cell separator with a gasket for improved sealing is provided. The fuel cell separator with a gasket is capable of improving the contact pressure of a cooling surface-side airtight line by additionally forming a sub-airtight line in a region in which a gas aperture is not formed at a cooling surface-side position that corresponds to the cooling surface-side airtight line of the separator.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: May 28, 2019
    Assignee: Hyundai Motor Company
    Inventors: Seong Il Heo, Chi Seung Lee, Yoo Chang Yang
  • Patent number: 10263262
    Abstract: Disclosed is a fuel cell with a porous material-gasket integrated structure, which can facilitate the flow of gas and water by stacking a porous material-gasket integrated structure, in which a porous material and a gasket are integrally molded, on a separator. In particular, the present invention provides a fuel cell with a porous material-gasket integrated structure, in which a porous material and a gasket are integrally molded and stacked on a separator such that the porous material is located between a manifold, through which gas is supplied, and a reaction surface, where an electrochemical reaction takes place, so as to serve as a diffuser for gas fed through the manifold.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: April 16, 2019
    Assignee: Hyundai Motor Company
    Inventors: Jun Ho Jang, Yoo Chang Yang
  • Publication number: 20190058201
    Abstract: A separator for a fuel cell includes: a metal base material; and a carbon coating layer formed on one surface or both surfaces of the metal base material, in which roughness Ra formed at an interface between the metal base material and the carbon coating layer may be in a range of 20 to 78 nm.
    Type: Application
    Filed: November 8, 2017
    Publication date: February 21, 2019
    Inventors: Bokyung KIM, Yoo Chang YANG, Woong Pyo HONG, Seungkoo LEE, Jungyeon PARK, Su Jung NOH, Seung Jeong OH, Daeil YOON, In Woong LYO, Kyungmin KIM
  • Patent number: 10147964
    Abstract: A gasket for a fuel cell having plurality of protrusions coupled to a surface of a separation plate of the fuel cell and protruding from an air-tight line blocking movement between materials flowing along a plurality of manifolds, in a length direction of the separation plate is provided. In particular, each of the plurality of protrusions includes a groove having a set width.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: December 4, 2018
    Assignee: Hyundai Motor Company
    Inventors: Seong Il Heo, Yoo Chang Yang, Chi Seung Lee
  • Patent number: 10141584
    Abstract: A separator for a fuel cell includes a plurality of channels; and an inlet hole and an outlet hole formed in a first side and a second side of the plurality of channels, respectively, such that a reaction gas flows into and out from the separator to be exposed to a reaction surface including a membrane electrode assembly. The inlet hole is larger in size than the outlet hole.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: November 27, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Sang Mun Jin, Yoo Chang Yang