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公开(公告)号：US20210175516A1
公开(公告)日：2021-06-10
申请号：US16901479
申请日：2020-06-15
Applicant: HYUNDAI MOTOR COMPANY , KIA MOTORS CORPORATION
Inventor： Yoon Hwan Cho , Kook Il Han , Su Won Seol
Abstract: The present disclosure relates to a method of manufacturing catalyst slurry for fuel cells capable of greatly improving efficiency in use of catalyst metal and a method of manufacturing an electrode for fuel cells using the catalyst slurry manufactured using the method. Specifically, the method of manufacturing catalyst slurry for fuel cells includes preparing a catalyst including a porous carrier and catalyst metal, introducing the catalyst, a solvent, and an ionomer into a chamber, and infiltrating the ionomer into pores of the carrier.
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公开(公告)号：US10103392B2
公开(公告)日：2018-10-16
申请号：US14308534
申请日：2014-06-18
Applicant: Hyundai Motor Company
Inventor： Bo Ki Hong , Kook Il Han , Ji Yeon Park , Byeong Heon Jeong , Sang Hyun Cho , Chae Won Lim
IPC: H01M8/02 , H01M8/04 , H01M8/0271 , H01M8/0276 , H01M8/0297 , H01M8/1004 , H01M8/1018
Abstract: A membrane-electrode assembly (MEA) for fuel cells includes an electricity-generating array including an anode, a cathode, and an electrolyte membrane. A subgasket array includes an anode subgasket surrounding a periphery of the anode and a cathode subgasket surrounding a periphery of the cathode. A junction array includes a polar junction and a nonpolar junction surrounding a periphery of the electrolyte membrane and attaching the anode subgasket and the cathode subgasket to each other.
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公开(公告)号：US20180175393A1
公开(公告)日：2018-06-21
申请号：US15664378
申请日：2017-07-31
Applicant: Hyundai Motor Company , Kia Motors Corporation
Inventor： Jae Man Park , Kook Il Han , Ji Han Lee
IPC: H01M4/88 , H01M8/1004 , H01M4/86
CPC classification number: H01M4/8807 , H01M4/8605 , H01M4/8817 , H01M8/0234 , H01M8/0245 , H01M8/1004 , H01M2008/1095 , H01M2250/20 , Y02P70/56
Abstract: In one embodiment, a gas diffusion layer for fuel cells includes a fine porous layer formed on a carbon fiber support and being interposed between a membrane-electrode assembly (MEA) and a separator. The carbon fiber support includes a fine pore area having a predetermined average pore size in a separator direction (thickness direction) in the membrane electrode assembly, and a coarse pore area having a larger predetermined average pore size than the average pore size of the fine pore area in the separator direction (thickness direction) in the membrane electrode assembly. The fine pore area and the coarse pore area are alternately formed.
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公开(公告)号：US09847535B2
公开(公告)日：2017-12-19
申请号：US14568324
申请日：2014-12-12
Applicant: Hyundai Motor Company , Kia Motors Corporation
Inventor： Bo Ki Hong , Kook Il Han , Sae Hoon Kim , Jae Jun Ko
IPC: H01M8/00 , H01M8/023 , H01M8/0234 , H01M8/241
CPC classification number: H01M8/023 , H01M8/0234 , H01M8/241 , Y02P70/56
Abstract: The present invention provides a fuel cell stack with enhanced freeze-thaw durability. In particular, the fuel cell stack includes a gas diffusion layer between a membrane-electrode assembly and a bipolar plate. The gas diffusion layer has a structure that reduces contact resistance in a fuel cell and is cut at a certain angle such that the machine direction (high stiffness direction) of GDL roll is not in parallel with the major flow field direction of the bipolar plate, resulting in an increased GDL stiffness in a width direction perpendicular to a major flow field direction of a bipolar plate.
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公开(公告)号：US20170141418A1
公开(公告)日：2017-05-18
申请号：US15352519
申请日：2016-11-15
Applicant: Hyundai Motor Company
Inventor： Bo Ki Hong , Kook Il Han , Ji Yeon Park , Se Joon Im
IPC: H01M8/04298 , H01M8/04089
CPC classification number: H01M8/04305 , H01M8/04089 , H01M8/04238 , H01M2008/1095 , H01M2250/20 , Y02E60/50 , Y02T90/32
Abstract: Disclosed is a stack for simulating a cell voltage reversal behavior in a fuel cell. The stack is configured to have a structure in which a separator of a portion of a plurality of cells in the stack have an inlet of a hydrogen flow field partially blocked to induce hydrogen starvation only in the portion of the plurality of cells.
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Patent Agency Ranking
公开(公告)号：US09496566B2
公开(公告)日：2016-11-15
申请号：US13688646
申请日：2012-11-29
Applicant: Hyundai Motor Company
Inventor： Bo Ki Hong , Kook Il Han , Ji Yeon Park , Se Joon Im
CPC classification number: H01M8/04305 , H01M8/04089 , H01M8/04238 , H01M2008/1095 , H01M2250/20 , Y02E60/50 , Y02T90/32
Abstract: Disclosed is a stack for simulating a cell voltage reversal behavior in a fuel cell. The stack is configured to have a structure in which a separator of a portion of a plurality of cells in the stack have an inlet of a hydrogen flow field partially blocked to induce hydrogen starvation only in the portion of the plurality of cells.
Abstract translation: 公开了一种用于模拟燃料电池中的电池电压反转行为的堆叠。 该堆叠构造成具有其中堆叠中的多个单元的一部分的分离器具有部分被阻止的氢气流的入口以仅在多个单元的部分中引起氢的结构的结构。
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公开(公告)号：US12002968B2
公开(公告)日：2024-06-04
申请号：US16901479
申请日：2020-06-15
Applicant: HYUNDAI MOTOR COMPANY , KIA MOTORS CORPORATION
Inventor： Yoon Hwan Cho , Kook Il Han , Su Won Seol
CPC classification number: H01M4/926 , H01M4/8647 , H01M4/8668 , H01M4/8814 , H01M4/8828 , H01M4/8882 , H01M4/9041 , H01M4/9083 , H01M4/921 , H01M4/8835
Abstract: The present disclosure relates to a method of manufacturing catalyst slurry for fuel cells capable of greatly improving efficiency in use of catalyst metal and a method of manufacturing an electrode for fuel cells using the catalyst slurry manufactured using the method. Specifically, the method of manufacturing catalyst slurry for fuel cells includes preparing a catalyst including a porous carrier and catalyst metal, introducing the catalyst, a solvent, and an ionomer into a chamber, and infiltrating the ionomer into pores of the carrier.
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公开(公告)号：US20240120501A1
公开(公告)日：2024-04-11
申请号：US18202444
申请日：2023-05-26
Applicant: HYUNDAI MOTOR COMPANY , KIA CORPORATION
Inventor： Ji Hoon Yang , Geon Hee Cho , Kook Il Han , Yoon Hwan Cho
CPC classification number: H01M4/926 , H01M4/9083 , H01M2008/1095
Abstract: Disclosed are an electrode slurry for a fuel cell capable of forming a multilayer structure without an interface using a first support and a second support having different mesopore fractions and densities, a multilayer electrode structure using the same, and a manufacturing method thereof. The electrode slurry for a fuel cell includes a first catalyst including a first support on which a first metal is supported, a second catalyst including a second support on which a second metal is supported, an ionomer, and a solvent, the first support and the second support having different mesopore fractions and densities.
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公开(公告)号：US20220181644A1
公开(公告)日：2022-06-09
申请号：US17217987
申请日：2021-03-30
Applicant: Hyundai Motor Company , Kia Motors Corporation , Korea Advanced Institute of Science and Technology
Inventor： Ji Hoon Yang , Jin Seong Choi , Kook Il Han , Geon Hee Cho , Jin Woo Lee , Ah Ryeon Lee
IPC: H01M4/92
Abstract: Disclosed are a method of manufacturing a carbon support for a fuel cell catalyst, a carbon support for a fuel cell catalyst manufactured according to the method, and a catalyst for a fuel cell including the same. The method may include using various organic materials containing N and various carbon supports and thus provide excellent economic feasibility. In addition, pyridinic N and pyrrolic N of doped N can be adjusted at an optimal content ratio so that the carbon support for a fuel cell catalyst manufactured and the catalyst for a fuel cell including the same have excellent electrochemical resistance and excellent electrochemical characteristic due to an increase in an electrochemically active surface area, and excellent durability due to an increase in thermal durability.
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公开(公告)号：US10593957B2
公开(公告)日：2020-03-17
申请号：US15664378
申请日：2017-07-31
Applicant: Hyundai Motor Company , Kia Motors Corporation
Inventor： Jae Man Park , Kook Il Han , Ji Han Lee
IPC: H01M4/88 , H01M8/1004 , H01M4/86 , H01M8/0245 , H01M8/0234 , H01M8/1018
Abstract: In one embodiment, a gas diffusion layer for fuel cells includes a fine porous layer formed on a carbon fiber support and being interposed between a membrane-electrode assembly (MEA) and a separator. The carbon fiber support includes a fine pore area having a predetermined average pore size in a separator direction (thickness direction) in the membrane electrode assembly, and a coarse pore area having a larger predetermined average pore size than the average pore size of the fine pore area in the separator direction (thickness direction) in the membrane electrode assembly. The fine pore area and the coarse pore area are alternately formed.
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