公开(公告)号：US20180277872A1

公开(公告)日：2018-09-27

申请号：US15924890

申请日：2018-03-19

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

Inventor： Bo Ki Hong ,  Byeong-Heon Jeong ,  Taek-Soo Kim ,  Jae-Han Kim ,  Sanwi Kim

IPC: H01M8/1004 ,  H01M4/92 ,  H01M4/88

CPC classification number: H01M8/1004 ,  H01M4/8814 ,  H01M4/8875 ,  H01M4/926 ,  H01M2250/20 ,  Y02E60/521 ,  Y02T90/32

Abstract: Disclosed are a process for separating an electrode for membrane-electrode assemblies of fuel cells from the decal transfer film and an apparatus for separating the electrode. In particular, during the electrode separating process, only an electrode is separated from the decal transfer film on which the electrode is coated, without any damage, by a freezing method for freezing the specimen on the deionized water surface, and thus, wasting the expensive MEA is prevented. Thus, mechanical properties of the pristine electrode can be rapidly quantified in advance, and therefore, long term durability evaluation period during developing MEA having excellent durability is substantially reduced.

公开(公告)号：US20170003239A1

公开(公告)日：2017-01-05

申请号：US14942390

申请日：2015-11-16

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

Inventor： Byeong-Heon Jeong ,  Bo Ki Hong ,  Jong Kil Oh ,  Taek-Soo Kim ,  Sanwi Kim ,  Kyung-Rim Jang

IPC: G01N27/20 ,  H01M8/04664 ,  G06T7/00 ,  G01N21/95 ,  G01N3/08 ,  H01M8/04537 ,  H01M8/04298

CPC classification number: G06T7/0004 ,  G01M99/00 ,  G01N3/08 ,  G01N21/8422 ,  G01N21/95 ,  G01N27/205 ,  G01N2203/0066 ,  G06T2207/10056 ,  G06T2207/30108 ,  H01M8/00

Abstract: An apparatus for measuring micro-cracks in a membrane electrode assembly includes a resistance measurement unit to measure variation in electrical resistance of the membrane electrode assembly while tensioning the membrane electrode assembly in a state in which power is applied to an upper catalyst layer while a lower catalyst layer is insulated, an image capture unit to capture an image of micro-cracks in the upper catalyst layer while the membrane electrode assembly is being tensioned, and a controller to detect, in real time, variation in electrical resistance measured by the resistance measurement unit, corresponding to the image of micro-cracks captured by the image capture unit, and to interpret the size of the micro-cracks generated in the membrane electrode assembly based on the detected variation in electrical resistance.

Abstract translation: 一种用于测量膜电极组件中的微裂纹的装置，包括：电阻测量单元，用于测量膜电极组件的电阻变化，同时在对上部催化剂层施加电力的状态下张紧膜电极组件，同时下部 催化剂层被绝缘，图像捕获单元在膜电极组件被张紧的同时捕获上部催化剂层中的微裂纹的图像，以及控制器，实时检测由电阻测量测量的电阻变化 单元，其对应于由图像捕获单元捕获的微裂纹的图像，并且基于检测到的电阻变化来解释在膜电极组件中产生的微裂纹的尺寸。

公开(公告)号：US20140030815A1

公开(公告)日：2014-01-30

申请号：US13686356

申请日：2012-11-27

Applicant: HYUNDAI MOTOR COMPANY

Inventor： Ji Yeon Park ,  Bo Ki Hong ,  Sang Yeoul Ahn

IPC: G01N31/22

CPC classification number: G01N31/221 ,  G01N3/12 ,  G01N31/22

Abstract: Disclosed is a pinhole inspection apparatus, system and method for a membrane electrode assembly of a fuel cell, which can easily detect the position of a pinhole using water and a pH test paper from discoloration caused when the water is in contact with the pH test paper through the pinhole, thus solving the existing problems and allowing the membrane electrode assembly to be reused after the inspection. In particular, a lower fixture is configured to support the membrane electrode assembly and water is uniformly distributed on an upper surface of the membrane electrode assembly. A pH test paper is inserted between the membrane electrode assembly and the lower fixture and discolored upon coming in contact with water that passes through a pinhole in the membrane electrode assembly, thus detecting the presence and position of the pinhole.

Abstract translation: 公开了一种用于燃料电池的膜电极组件的针孔检查装置，系统和方法，其可以使用水容易地检测针孔的位置，并且当pH与pH试纸接触时，pH测试纸因变色而引起变色 通过针孔解决现有的问题，并且可以在检查后重新使用膜电极组件。 特别地，下部夹具构造成支撑膜电极组件，并且水均匀地分布在膜电极组件的上表面上。 在膜电极组件和下部固定装置之间插入pH试纸，并在与膜电极组件中的针孔接触的水中变色，从而检测针孔的存在和位置。

公开(公告)号：US12080927B2

公开(公告)日：2024-09-03

申请号：US17856116

申请日：2022-07-01

Applicant: Hyundai Motor Company ,  Kia Corporation

Inventor： Jae Jun Ko ,  In Yu Park ,  Bo Ki Hong

IPC: H01M8/1004

CPC classification number: H01M8/1004

Abstract: Disclosed are an antioxidant for fuel cells, a membrane electrode assembly including the same and a method for preparing the antioxidant. The antioxidant for fuel cells includes a core including at least one selected from the group consisting of a metal oxide (MxOk) and a complex metal oxide (MxNyOj, N and M being different metals), and an outer portion (e.g., a shell) located on or over a surface of the core and formed by performing reduction treatment of the surface of the core using a thiourea-based compound. The outer portion includes metal cations (M(x-n)+, n being a natural number of 1 or more) having a smaller oxidation number than a valency of the metal (M) of the core.

公开(公告)号：US11735746B2

公开(公告)日：2023-08-22

申请号：US16842459

申请日：2020-04-07

Applicant: Hyundai Motor Company ,  Kia Motors Corporation ,  Korea Advanced Institute of Science and Technology

Inventor： Jung Han Yu ,  Bo Ki Hong ,  Jong Kil Oh ,  Hyun Joo Lee ,  Chi Woo Roh

IPC: H01M4/00 ,  H01M4/86 ,  H01M4/92

CPC classification number: H01M4/8652 ,  H01M4/923 ,  H01M4/925

Abstract: Disclosed is a catalyst complex for a fuel cell. The catalyst complex includes a support including carbon (C), platinum (Pt) supported on the support, and an iridium (Ir) compound supported on the support, and the iridium compound includes at least one of iridium oxide represented by Chemical Formula 1, IrOx, and iridium-transition-metal oxide represented by Chemical Formula 2, IrMOx, wherein M is a transition metal selected from the group consisting of Fe, Co, Cu, Ni and combinations thereof, and x is from 1 to 2.

公开(公告)号：US11661663B2

公开(公告)日：2023-05-30

申请号：US17092501

申请日：2020-11-09

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Jung Han Yu ,  Ju Han Kim ,  Bo Ki Hong ,  Keun Bong Ham

IPC: C25B15/031 ,  C25B1/04 ,  C25B15/08 ,  C25B15/023

CPC classification number: C25B15/031 ,  C25B1/04 ,  C25B15/023 ,  C25B15/08

Abstract: A water electrolysis system includes a water electrolytic stack, a water reservoir connected to the water electrolytic stack to supply water to the water electrolytic stack, a water circulation pump supplying the water in the water reservoir to the electrolytic stack; and a control unit configured to, during an operation stoppage of the electrolysis system, control the driving of the water circulation pump to convert the water in the electrolytic stack from an acidic condition to a neutral condition and to regulate a unit cell voltage of the electrolytic stack to a voltage such that an electrolysis reaction does not occur and a chemical state of an anode catalyst is stably maintained.

公开(公告)号：US11594746B2

公开(公告)日：2023-02-28

申请号：US17121119

申请日：2020-12-14

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Il Seok Chae ,  Jae Jun Ko ,  Bo Ki Hong

IPC: H01M8/1051 ,  H01M8/1004 ,  H01M4/86 ,  C09K15/02 ,  C09K15/12

Abstract: Disclosed are an antioxidant for a fuel cell having a high degree of dispersion and/or distribution and excellent antioxidant capability and a membrane-electrode assembly including the same. The antioxidant includes a metal oxide and a sulfur-containing organic compound, for example, an organic compound including a sulfinic acid anion group (R—SO2−), adsorbed on the metal oxide.

公开(公告)号：US11557783B2

公开(公告)日：2023-01-17

申请号：US16983248

申请日：2020-08-03

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Jong Kil Oh ,  In Yu Park ,  Bo Ki Hong

IPC: H01M8/1053 ,  H01M8/1069 ,  H01M8/10

Abstract: Disclosed are a polymer electrolyte membrane for fuel cells which has improved handling properties and mechanical strength by employing symmetric-type laminated composite films and a method for manufacturing the same.

公开(公告)号：US20220336835A1

公开(公告)日：2022-10-20

申请号：US17856116

申请日：2022-07-01

Applicant: Hyundai Motor Company ,  Kia Corporation

Inventor： Jae Jun Ko ,  In Yu Park ,  Bo Ki Hong

IPC: H01M8/1004

Abstract: Disclosed are an antioxidant for fuel cells, a membrane electrode assembly including the same and a method for preparing the antioxidant. The antioxidant for fuel cells includes a core including at least one selected from the group consisting of a metal oxide (MxOk) and a complex metal oxide (MxNyOj, N and M being different metals), and an outer portion (e.g., a shell) located on or over a surface of the core and formed by performing reduction treatment of the surface of the core using a thiourea-based compound. The outer portion includes metal cations (M(x-n)+, n being a natural number of 1 or more) having a smaller oxidation number than a valency of the metal (M) of the core.

公开(公告)号：US20200212457A1

公开(公告)日：2020-07-02

申请号：US16692658

申请日：2019-11-22

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Jae Jun Ko ,  In Yu Park ,  Bo Ki Hong

IPC: H01M8/0284 ,  H01M8/1004 ,  H01M8/0286

Abstract: Disclosed are a membrane electrode assembly with a sub-gasket and a manufacturing method thereof. The membrane electrode assembly includes an electrolyte membrane, the sub-gasket formed in an edge region of the electrolyte membrane to surround a central region of the electrolyte membrane, and an adhesive layer formed between the electrolyte membrane and the sub-gasket and including an adhesive material and an antioxidant. The electrolyte membrane is formed to have a flat surface in a first direction, the sub-gasket extends in the first direction and a second direction vertical to the first direction, and the antioxidant includes a metal salt hydrate.