公开(公告)号：US20210313610A1

公开(公告)日：2021-10-07

申请号：US17121224

申请日：2020-12-14

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Jongkil Oh ,  Bo Ki Hong

IPC: H01M8/1051 ,  H01M8/1004 ,  H01M8/1062 ,  H01M8/1067 ,  H01M8/1086 ,  H01M8/1053

Abstract: Disclosed are a polymer electrolyte membrane for a fuel cell, a membrane-electrode assembly including the same, a fuel cell and a method of manufacturing the polymer electrolyte membrane for a fuel cell. Particularly, the polymer electrolyte membrane for a fuel cell may include ionomer layers including a voltage reversal tolerance-increasing additive including a water electrolysis catalyst and an electrical conductor and provided on a porous reinforced film.

公开(公告)号：US20210202971A1

公开(公告)日：2021-07-01

申请号：US17095317

申请日：2020-11-11

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Byoungsu Kim ,  Bo Ki Hong

IPC: H01M8/1004 ,  H01M8/1007 ,  H01M4/92 ,  H01M4/88 ,  H01M8/1069

Abstract: Disclosed are an electrolyte membrane for fuel cells that can prevent poisoning of catalysts and a method of producing the same. The electrolyte membrane for fuel cells includes an ion transport layer including an ionomer having proton conductivity, and a catalytic composite dispersed in the ion transport layer, wherein the catalytic composite includes a catalytic particle including a catalytic metal component having an activity of decomposing hydrogen peroxide, and a protective layer formed on at least a part of a surface of the catalytic particle to prevent the ionomer from contacting the catalytic metal component.

公开(公告)号：US11024865B2

公开(公告)日：2021-06-01

申请号：US16450313

申请日：2019-06-24

Applicant: Hyundai Motor Company ,  Kia Motors Corporation ,  Industry Foundation of Chonnam National University

Inventor： In Yu Park ,  Bo Ki Hong ,  Jae Jun Ko ,  Aniket Kumar ,  Sun Ju Song ,  Jae Woon Hong

IPC: H01M8/10 ,  H01M8/1051 ,  H01M8/1004 ,  H01M4/86 ,  H01M8/1032 ,  H01M8/1027 ,  C01G19/02 ,  H01M8/1039 ,  H01M8/1018

Abstract: Disclosed are an antioxidant for fuel cells and a membrane-electrode assembly including the same. The membrane-electrode assembly may have obtained greatly improved durability by using an antioxidant having a novel composition that may provide excellent antioxidant activity and long-term durability.

公开(公告)号：US11011766B2

公开(公告)日：2021-05-18

申请号：US16208964

申请日：2018-12-04

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Jung Han Yu ,  Jong Kil Oh ,  Gun Hyung Park ,  Bo Ki Hong

IPC: H01M8/04791 ,  H01M8/1004 ,  H01M8/0444 ,  H01M4/88 ,  H01M8/04223

Abstract: A fuel cell system and a control method thereof are provided. In the system, an oxygen sensor is mounted on the anode inlet side and the anode outlet side of a fuel cell stack to measure an oxygen concentration. Based on the measured oxygen concentration, a control operation is performed on the fuel cell system to reduce the oxygen concentration on the anode side. Accordingly, the irreversible deterioration of the fuel cell occurring due to the reverse voltage of the cell during driving of the fuel cell vehicle and the cathode carbon corrosion occurring due to the inflow of air during parking are effectively reduced, thereby increasing the durability of the fuel cell and the fuel cell vehicle.

公开(公告)号：US20210075049A1

公开(公告)日：2021-03-11

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

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：US10938050B2

公开(公告)日：2021-03-02

申请号：US15818662

申请日：2017-11-20

Applicant: HYUNDAI MOTOR COMPANY ,  KIA MOTORS CORPORATION

Inventor： Jong Kil Oh ,  Bo Ki Hong

IPC: H01M8/1004 ,  H01M8/0271 ,  H01M8/0273 ,  H01M8/1016 ,  H01M8/04119 ,  H01M8/1088 ,  H01M8/1041 ,  H01M8/1065

Abstract: A membrane electrode assembly includes: an electrolyte membrane; a cathode and an anode, each being stacked on the electrolyte membrane; and subgaskets bonded to a peripheral region of the electrolyte membrane, which is outside an active area, in which each of the cathode and the anode are stacked on the electrolyte membrane. The electrolyte membrane is disposed in at least a portion of the peripheral region of the electrolyte membrane, which is outside the active area, with a water discharge blocking region for preventing water in the electrolyte membrane from diffusing and being discharged to outside.

公开(公告)号：US10862135B2

公开(公告)日：2020-12-08

申请号：US16124933

申请日：2018-09-07

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Sukhwan Yun ,  Bo Ki Hong

IPC: H01M4/88 ,  H01M4/86 ,  H01M8/023 ,  H01M8/04291 ,  H01M8/04492 ,  H01M8/1023 ,  H01M8/1039 ,  H01M8/1051 ,  H01M8/1086 ,  H01M8/1018

Abstract: The present invention relates to a method of manufacturing an electrolyte membrane for fuel cells by transferring antioxidants to the electrolyte membrane. The method may include providing a first membrane including a perfluorinated sulfonic acid-based compound, providing a second membrane including an antioxidant such that the second membrane partially or entirely contacts a surface of the first membrane, transferring or moving the antioxidant of the second membrane to the first membrane, and removing the second membrane.

公开(公告)号：US20200321625A1

公开(公告)日：2020-10-08

申请号：US16597500

申请日：2019-10-09

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Inyu Park ,  Jae Jun Ko ,  Bo Ki Hong

IPC: H01M4/88 ,  H01M8/1053 ,  H01M8/126

Abstract: Disclosed is a method of manufacturing an electrolyte membrane including an antioxidant. The method may include forming a first dispersion liquid including deionized water, a first ionomer dispersion solution and an antioxidant, and forming a second dispersion liquid including the first dispersion liquid and a second ionomer dispersion solution.

公开(公告)号：US10714778B2

公开(公告)日：2020-07-14

申请号：US16131843

申请日：2018-09-14

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： InYu Park ,  Jae Jun Ko ,  Bo Ki Hong

IPC: H01M8/10 ,  H01M8/1051 ,  H01M4/86 ,  H01M8/1004 ,  H01M8/1018

Abstract: Disclosed are a membrane-electrode assembly for fuel cells with improved durability and a polymer electrolyte membrane fuel cell including the same. The membrane-electrode assembly includes an antioxidant, Sm-doped cerium oxide in the electrolyte membrane, which has a controlled microstructure through high-temperature heat treatment, thereby providing both superior antioxidant activity and excellent long-term stability.

公开(公告)号：US20200212469A1

公开(公告)日：2020-07-02

申请号：US16680769

申请日：2019-11-12

Applicant: Hyundai Motor Company ,  Kia Motors 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.