公开(公告)号：US12283728B2

公开(公告)日：2025-04-22

申请号：US17473407

申请日：2021-09-13

Applicant: HYUNDAI MOTOR COMPANY ,  KIA CORPORATION ,  Industry-Academic Cooperation Foundation Gyeongsang National University

Inventor： Il Seok Chae ,  Jong Kil Oh ,  Bo Ki Hong ,  Ki Hyun Kim ,  Soon Ki Kwon ,  Mi Jeong Kim ,  Han Sol Ko

IPC: C08G10/00 ,  C08G61/02 ,  C25B1/04 ,  C25B13/08 ,  H01M8/1023 ,  H01M8/1081 ,  H01M8/10

Abstract: The present disclosure to an electrolyte membrane containing a polyfluorene-based ionomer, and more particularly, to an electrolyte membrane containing a polyfluorene-based ionomer which has a fluorene main chain composed of only a carbon-carbon bond and a side chain composed of a perfluorosulfonic acid group. The electrolyte membrane containing the polyfluorene-based ionomer has high proton conductivity, excellent chemical durability, excellent mechanical property, and excellent volume stability.

公开(公告)号：US12166251B2

公开(公告)日：2024-12-10

申请号：US16942001

申请日：2020-07-29

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

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

IPC: H01M8/1053 ,  H01M8/1067 ,  H01M8/1081 ,  H01M8/10

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：US12051836B2

公开(公告)日：2024-07-30

申请号：US17121067

申请日：2020-12-14

Applicant: Hyundai Motor Company ,  Kia Motors 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：US11581560B2

公开(公告)日：2023-02-14

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 ,  H01M8/1053 ,  H01M8/1004 ,  H01M8/1062 ,  H01M8/1067 ,  H01M8/1086 ,  H01M8/10

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：US11581556B2

公开(公告)日：2023-02-14

申请号：US17116491

申请日：2020-12-09

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Jung Han Yu ,  Hyeon Seok Ban ,  Bo Ki Hong ,  Hyun Yoo Kim

IPC: H01M8/04 ,  H01M8/04082 ,  H01M8/04701 ,  H01M8/04858 ,  H01M8/1004 ,  H01M8/04119

Abstract: A fuel cell system capable of improving the chemical durability of a membrane electrode assembly by compensating for the amount of an antioxidant lost within the electrolyte membrane or electrode of the fuel cell stack in such a manner that the antioxidant is provided from an antioxidant supply device, provided in a fuel processing system and/or an air processing system, to a fuel cell stack, in preparation for a case where the antioxidant within the electrolyte membrane or electrode is lost due to the dissolution or migration characteristic of the antioxidant.

公开(公告)号：US11355768B2

公开(公告)日：2022-06-07

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 ,  H01M8/1069 ,  H01M4/88 ,  H01M8/10

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：US11335920B2

公开(公告)日：2022-05-17

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 ,  H01M8/0286 ,  H01M8/1004

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.

公开(公告)号：US11302950B2

公开(公告)日：2022-04-12

申请号：US16194963

申请日：2018-11-19

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Sukhwan Yun ,  Bo Ki Hong

IPC: H01M8/1086 ,  H01M8/1039 ,  H01M8/1023 ,  H01M8/1018 ,  H01M8/1053 ,  H01M8/106 ,  H01M8/10

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：US20220093953A1

公开(公告)日：2022-03-24

申请号：US17473407

申请日：2021-09-13

Applicant: HYUNDAI MOTOR COMPANY ,  KIA CORPORATION ,  Industry-Academic Cooperation Foundation Gyeongsang National University

Inventor： Il Seok Chae ,  Jong Kil Oh ,  Bo Ki Hong ,  Ki Hyun Kim ,  Soon Ki Kwon ,  Mi Jeong Kim ,  Han Sol Ko

IPC: H01M8/1023 ,  C25B1/04 ,  C25B13/08 ,  H01M8/1081 ,  C08G61/02

Abstract: The present disclosure to an electrolyte membrane containing a polyfluorene-based ionomer, and more particularly, to an electrolyte membrane containing a polyfluorene-based ionomer which has a fluorene main chain composed of only a carbon-carbon bond and a side chain composed of a perfluorosulfonic acid group. The electrolyte membrane containing the polyfluorene-based ionomer has high proton conductivity, excellent chemical durability, excellent mechanical property, and excellent volume stability.

公开(公告)号：US20220021006A1

公开(公告)日：2022-01-20

申请号：US17121159

申请日：2020-12-14

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Il Seok Chae ,  Bo Ki Hong

IPC: H01M4/86 ,  H01M8/1004 ,  H01M4/88 ,  H01M4/90 ,  C08G67/00 ,  C08L65/00 ,  C08L73/00

Abstract: Disclosed are an electrode for a fuel cell a membrane-electrode assembly including the same, and a method of preparing the same. The electrode may include catalyst particles; and a binder in which the catalyst particles are dispersed. In particular, the binder may include an ionomer having proton conductivity and a polymer of intrinsic microporosity (PIM) in order to implement high oxygen permeability.