公开(公告)号：US20150162623A1

公开(公告)日：2015-06-11

申请号：US14581276

申请日：2014-12-23

Applicant: Hyundai Motor Company ,  Korea Institute of Science and Technology

Inventor： Bo Ki Hong ,  Sae Hoon Kim ,  Kwang Ryeol Lee ,  Myoung Woon Moon

IPC: H01M8/02

CPC classification number: H01M8/0234 ,  B32B2307/73 ,  B82Y40/00 ,  H01M8/0239 ,  H01M8/0243 ,  H01M8/0245 ,  H01M8/04156 ,  H01M2008/1095 ,  Y02E60/50 ,  Y02P70/56 ,  Y10S977/778 ,  Y10S977/89 ,  Y10T428/24372

Abstract: The present invention provides a porous medium with increased hydrophobicity and a method of manufacturing the same, in which a micro-nano dual structure is provided by forming nanoprotrusions with a high aspect ratio by performing plasma etching on the surface of a porous medium with a micrometer-scale surface roughness and a hydrophobic thin film is deposited on the surface of the micro-nano dual structure, thus significantly increasing hydrophobicity. When this highly hydrophobic porous medium is used as a gas diffusion layer of a fuel cell, it is possible to efficiently discharge water produced during electrochemical reaction of the fuel cell, thus preventing flooding in the fuel cell. Moreover, it is possible to sufficiently supply reactant gases such as hydrogen and air (oxygen) to a membrane electrode assembly (MEA), thus improving the performance of the fuel cell.

Abstract translation: 本发明提供了一种具有增加的疏水性的多孔介质及其制造方法，其中通过在多孔介质的表面上进行等离子体蚀刻来形成具有高纵横比的纳米突起，提供微纳米双重结构 尺寸表面粗糙度和疏水性薄膜沉积在微纳米双结构的表面上，从而显着增加疏水性。 当这种高度疏水性的多孔介质用作燃料电池的气体扩散层时，可以有效地排出在燃料电池的电化学反应期间产生的水，从而防止燃料电池中的淹水。 此外，可以向膜电极组件（MEA）充分供应氢气和空气（氧气）等反应气体，从而提高燃料电池的性能。

公开(公告)号：US09923222B2

公开(公告)日：2018-03-20

申请号：US14581473

申请日：2014-12-23

Applicant: Hyundai Motor Company ,  Korea Institute of Science and Technology

Inventor： Bo Ki Hong ,  Sae Hoon Kim ,  Kook Il Han ,  Kwang Ryeol Lee ,  Myoung Woon Moon

IPC: H01M8/10 ,  H01M8/1004 ,  H01M4/86 ,  H01M4/88 ,  H01M8/1007 ,  H01M8/1018

CPC classification number: H01M8/1007 ,  H01M4/8605 ,  H01M4/8807 ,  H01M4/8817 ,  H01M4/8821 ,  H01M4/886 ,  H01M8/1004 ,  H01M2008/1095 ,  H01M2300/0082 ,  Y02E60/521 ,  Y10S977/778 ,  Y10S977/89

Abstract: Disclosed is a fuel cell with enhanced mass transfer characteristics in which a highly hydrophobic porous medium, which is prepared by forming a micro-nano dual structure in which nanometer-scale protrusions with a high aspect ratio are formed on the surface of a porous medium with a micrometer-scale roughness by plasma etching and then by depositing a hydrophobic thin film thereon, is used as a gas diffusion layer, thereby increasing hydrophobicity due to the micro-nano dual structure and the hydrophobic thin film. When this highly hydrophobic porous medium is used as a gas diffusion layer for a fuel cell, it is possible to reduce water flooding by efficiently discharging water produced by an electrochemical reaction of the fuel cell and to improve the performance of the fuel cell by facilitating the supply of reactant gases such as hydrogen and air (oxygen) to a membrane-electrode assembly (MEA).

公开(公告)号：US20150111127A1

公开(公告)日：2015-04-23

申请号：US14581473

申请日：2014-12-23

Applicant: HYUNDAI MOTOR COMPANY ,  KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Bo Ki Hong ,  Sae Hoon Kim ,  Kook Il Han ,  Kwang Ryeol Lee ,  Myoung Woon Moon

IPC: H01M8/10

CPC classification number: H01M8/1007 ,  H01M4/8605 ,  H01M4/8807 ,  H01M4/8817 ,  H01M4/8821 ,  H01M4/886 ,  H01M8/1004 ,  H01M2008/1095 ,  H01M2300/0082 ,  Y02E60/521 ,  Y10S977/778 ,  Y10S977/89

Abstract: Disclosed is a fuel cell with enhanced mass transfer characteristics in which a highly hydrophobic porous medium, which is prepared by forming a micro-nano dual structure in which nanometer-scale protrusions with a high aspect ratio are formed on the surface of a porous medium with a micrometer-scale roughness by plasma etching and then by depositing a hydrophobic thin film thereon, is used as a gas diffusion layer, thereby increasing hydrophobicity due to the micro-nano dual structure and the hydrophobic thin film. When this highly hydrophobic porous medium is used as a gas diffusion layer for a fuel cell, it is possible to reduce water flooding by efficiently discharging water produced by an electrochemical reaction of the fuel cell and to improve the performance of the fuel cell by facilitating the supply of reactant gases such as hydrogen and air (oxygen) to a membrane-electrode assembly (MEA).

Abstract translation: 公开了具有增强的传质特性的燃料电池，其中通过形成微纳米双重结构制备的高度疏水的多孔介质，其中在多孔介质的表面上形成具有高纵横比的纳米级突起， 通过等离子体蚀刻，然后在其上沉积疏水性薄膜的微米级粗糙度被用作气体扩散层，从而由于微纳米双结构和疏水性薄膜而增加疏水性。 当这种高度疏水性的多孔介质用作燃料电池的气体扩散层时，可以通过有效地排放由燃料电池的电化学反应产生的水来减少水驱，并且通过促进燃料电池的性能来提高燃料电池的性能 向膜 - 电极组件（MEA）供应诸如氢气和空气（氧气）的反应气体。

公开(公告)号：US08703354B2

公开(公告)日：2014-04-22

申请号：US13671945

申请日：2012-11-08

Applicant: Hyundai Motor Company ,  Korea Institute of Science and Technology

Inventor： Bo Ki Hong ,  Sae Hoon Kim ,  Myoung Woon Moon ,  Kwang Ryeol Lee ,  Kyu Hwan Oh ,  Eun Kyu Her

IPC: H01M8/10

CPC classification number: H01M8/1004 ,  B82Y30/00 ,  H01M8/1067 ,  H01M8/1086 ,  Y02P70/56

Abstract: Disclosed is a membrane electrode assembly with enhanced hydrophobicity and a method for manufacturing the same. In particular, a nano pattern with a high aspect ratio is formed in a catalyst support on the surface of a catalyst layer constituting the membrane electrode assembly using plasma etching. A hydrophobic thin film is then formed on the nano pattern formed in the catalyst support.

Abstract translation: 公开了具有增强的疏水性的膜电极组件及其制造方法。 特别地，使用等离子体蚀刻在构成膜电极组件的催化剂层的表面上的催化剂载体上形成具有高纵横比的纳米图案。 然后在形成在催化剂载体上的纳米图案上形成疏水性薄膜。

公开(公告)号：US20140004443A1

公开(公告)日：2014-01-02

申请号：US13671945

申请日：2012-11-08

Applicant: HYUNDAI MOTOR COMPANY ,  KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Bo Ki Hong ,  Sae Hoon Kim ,  Myoung Woon Moon ,  Kwang Ryeol Lee ,  Kyu Hwan Oh ,  Eun Kyu Her

IPC: H01M8/10

CPC classification number: H01M8/1004 ,  B82Y30/00 ,  H01M8/1067 ,  H01M8/1086 ,  Y02P70/56

Abstract: Disclosed is a membrane electrode assembly with enhanced hydrophobicity and a method for manufacturing the same. In particular, a nano pattern with a high aspect ratio is formed in a catalyst support on the surface of a catalyst layer constituting the membrane electrode assembly using plasma etching. A hydrophobic thin film is then formed on the nano pattern formed in the catalyst support.

Abstract translation: 公开了具有增强的疏水性的膜电极组件及其制造方法。 特别地，使用等离子体蚀刻在构成膜电极组件的催化剂层的表面上的催化剂载体上形成具有高纵横比的纳米图案。 然后在形成在催化剂载体上的纳米图案上形成疏水性薄膜。

公开(公告)号：US10333155B2

公开(公告)日：2019-06-25

申请号：US14581276

申请日：2014-12-23

Applicant: Hyundai Motor Company ,  Korea Institute of Science and Technology

Inventor： Bo Ki Hong ,  Sae Hoon Kim ,  Kwang Ryeol Lee ,  Myoung Woon Moon

IPC: H01M8/0234 ,  H01M8/0239 ,  H01M8/0243 ,  H01M8/0245 ,  H01M8/04119 ,  B82Y40/00 ,  H01M8/1018

Abstract: The present invention provides a porous medium with increased hydrophobicity and a method of manufacturing the same, in which a micro-nano dual structure is provided by forming nanoprotrusions with a high aspect ratio by performing plasma etching on the surface of a porous medium with a micrometer-scale surface roughness and a hydrophobic thin film is deposited on the surface of the micro-nano dual structure, thus significantly increasing hydrophobicity. When this highly hydrophobic porous medium is used as a gas diffusion layer of a fuel cell, it is possible to efficiently discharge water produced during electrochemical reaction of the fuel cell, thus preventing flooding in the fuel cell. Moreover, it is possible to sufficiently supply reactant gases such as hydrogen and air (oxygen) to a membrane electrode assembly (MEA), thus improving the performance of the fuel cell.

公开(公告)号：US20250096295A1

公开(公告)日：2025-03-20

申请号：US18968365

申请日：2024-12-04

Applicant: Hyundai Motor Company ,  Kia Corporation

Inventor： Jong Kil Oh ,  Sae Hoon Kim ,  Bo Ki Hong

IPC: H01M8/1081 ,  H01M8/10 ,  H01M8/1032 ,  H01M8/1039 ,  H01M8/1067 ,  H01M8/1086

Abstract: Disclosed are a method for manufacturing a polymer electrolyte membrane for fuel cells in which a plurality of porous reinforcement films and ionomer layers are continuously disposed or stacked, and a polymer electrolyte membrane for fuel cells manufactured thereby. The polymer electrolyte membrane for fuel cells includes the porous reinforcement films, thus having excellent mechanical stiffness and improved physical durability. Further, the polymer electrolyte membrane for fuel cells includes an ionomer layer including a catalyst for decomposing peroxide configured to block gas crossover and may thus minimize performance degradation due to gas crossover and prevent an electrical short, and the polymer electrolyte membrane for fuel cells makes it easy to adjust the position of the ionomer layer in the electrolyte membrane in the thickness direction and may thus effectively mitigate gas crossover.

公开(公告)号：US20240356053A1

公开(公告)日：2024-10-24

申请号：US18762107

申请日：2024-07-02

Applicant: Hyundai Motor Company ,  Kia Corporation

Inventor： Il Seok Chae ,  Bo Ki Hong

IPC: H01M8/1004 ,  C08J5/22 ,  H01M8/1044 ,  H01M8/1069

CPC classification number: H01M8/1004 ,  C08J5/22 ,  H01M8/1044 ,  H01M8/1069 ,  H01M2300/0082

Abstract: Disclosed is an electrolyte membrane for a membrane-electrode assembly, which may include a filler that is a polymer compound (oligomer) having a low molecular weight. The electrolyte membrane may suitably include an oligomeric poly(vinylpyrrolidone) compound including a sulfonic acid group. The electrolyte membrane for a membrane-electrode assembly may have improved proton conductivity.

公开(公告)号：US11652228B2

公开(公告)日：2023-05-16

申请号：US17690561

申请日：2022-03-09

Applicant: Hyundai Motor Company ,  Kia Corporation

Inventor： Sukhwan Yun ,  Bo Ki Hong

IPC: H01M8/1086 ,  H01M8/1039 ,  H01M8/1023 ,  H01M8/1053 ,  H01M8/106 ,  H01M8/10

CPC classification number: H01M8/1086 ,  H01M8/106 ,  H01M8/109 ,  H01M8/1023 ,  H01M8/1039 ,  H01M8/1053 ,  H01M2008/1095

Abstract: Disclosed is a method of manufacturing an electrolyte membrane for fuel cells. The method includes preparing an electrolyte layer including one or more ion conductive polymers that form a proton movement channel, and permeating a gas from a first surface of the electrolyte layer to a second surface of the electrolyte layer.

公开(公告)号：US20220181667A1

公开(公告)日：2022-06-09

申请号：US17317352

申请日：2021-05-11

Applicant: Hyundai Motor Company ,  Kia Corporation

Inventor： Byoungsu Kim ,  Bo Ki Hong ,  Ji Hoon Yang

IPC: H01M8/1051 ,  H01M4/90 ,  H01M8/1039 ,  H01M8/1032 ,  H01M8/1027 ,  H01M8/1069

Abstract: Disclosed are an electrolyte membrane with improved ion conductivity and enhanced water transport and a method for manufacturing the same. The electrolyte membrane includes an ion transport layer including an ionomer having proton conductivity and a catalyst dispersed in the ion transport layer, and the catalyst includes a support including a shell configured to have a designated shape and size and to be hollow and at least one hole configured to allow an inner space to communicate with an outside therethrough, and a metal supported on the support.