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公开(公告)号：US20230187673A1
公开(公告)日：2023-06-15
申请号：US17983763
申请日：2022-11-09
发明人： Kweon Ju Park , Se Joon Im , Ju Young Lee , Min June Choi , Kook Il Han , Ju Hee Lee
IPC分类号： H01M8/1004 , H01M8/0245 , H01M8/1226
CPC分类号： H01M8/1004 , H01M8/0245 , H01M8/1226
摘要： A membrane electrode assembly and a method of manufacturing an electricity generating assembly include a pair of gas diffusion layers disposed on both surfaces of the membrane electrode assembly. Coupling agents are applied on surfaces of the gas diffusion layers, modifying surfaces of the gas diffusion layers. A coupling agent-friendly adhesive is applied to the surfaces of the gas diffusion layers to which the coupling agents are applied, forming adhesion layers on surfaces of the gas diffusion layers. The gas diffusion layers are stacked on the surfaces of the membrane electrode assembly, causing the adhesion layers to come into contact with the first and second surfaces of the membrane electrode assembly.
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公开(公告)号：US20220166032A1
公开(公告)日：2022-05-26
申请号：US17487683
申请日：2021-09-28
发明人： Geon Hee Cho , Ji Hoon Yang , Kook Il Han , Jin Seong Choi
IPC分类号： H01M4/90 , H01M8/1004 , H01M4/86 , H01M4/88
摘要： Disclosed herein is a method of manufacturing a support for a catalyst of a fuel cell. The method may include preparing an admixture including a carbon material and a cerium precursor into a reactor, providing the admixture in a reactor, raising a temperature of the reactor to a predetermined temperature, and introducing water vapor into the reactor to perform an activation reaction of the carbon material.
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公开(公告)号：US11581548B2
公开(公告)日：2023-02-14
申请号：US17487683
申请日：2021-09-28
发明人： Geon Hee Cho , Ji Hoon Yang , Kook Il Han , Jin Seong Choi
IPC分类号： H01M4/90 , H01M4/86 , H01M4/88 , H01M8/1004
摘要： Disclosed herein is a method of manufacturing a support for a catalyst of a fuel cell. The method may include preparing an admixture including a carbon material and a cerium precursor into a reactor, providing the admixture in a reactor, raising a temperature of the reactor to a predetermined temperature, and introducing water vapor into the reactor to perform an activation reaction of the carbon material.
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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
发明人： Ji Hoon Yang , Geon Hee Cho , Kook Il Han , Yoon Hwan Cho
CPC分类号： H01M4/926 , H01M4/9083 , H01M2008/1095
摘要： 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：US10826082B2
公开(公告)日：2020-11-03
申请号：US15255422
申请日：2016-09-02
发明人： Suk Min Baeck , Dae Il Yoon , Yoo Chang Yang , Kook Il Han
IPC分类号： H01M8/0258 , H01M8/1004 , H01M8/2404
摘要： A fuel cell and a method for producing the same are provided. The fuel cell includes a membrane electrode assembly and a gas diffusion layer that is disposed at each of opposite surfaces of the membrane electrode assembly, and includes a plurality of compressed parts that are formed by pressure at positions spaced out at predetermined intervals on the gas diffusion layer. The fuel cell further includes a separator that is in contact with an outer surface of the gas diffusion layer, and has a plurality of land parts that protrude toward the gas diffusion layer, and a plurality of channel parts that form flow paths between the land parts. The land parts respectively protrude toward the compressed parts of the gas diffusion layer to come in contact with the compressed parts.
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公开(公告)号：US20150099215A1
公开(公告)日：2015-04-09
申请号：US14568324
申请日：2014-12-12
发明人： Bo Ki Hong , Kook Il Han , Sae Hoon Kim , Jae Jun Ko
CPC分类号： H01M8/023 , H01M8/0234 , H01M8/241 , Y02P70/56
摘要： 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.
摘要翻译： 本发明提供一种具有增强的冻融耐久性的燃料电池堆。 特别地，燃料电池堆包括在膜 - 电极组件和双极板之间的气体扩散层。 气体扩散层具有降低燃料电池中的接触电阻并以一定角度切割的结构，使得GDL辊的机器方向（高刚度方向）不与双极板的主流场方向平行， 导致在垂直于双极板的主流场方向的宽度方向上增加的GDL刚度。
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公开(公告)号：US11688871B2
公开(公告)日：2023-06-27
申请号：US17101576
申请日：2020-11-23
发明人： Byeong Gab Ji , Su Won Seol , Dong Hwan Yoon , Kook Il Han , Yoon Hwan Cho
IPC分类号： H01M8/1004 , H01M4/88 , H01M4/90
CPC分类号： H01M8/1004 , H01M4/8828 , H01M4/8882 , H01M4/8892 , H01M4/9008
摘要： Disclosed are an electrode for a membrane-electrode assembly, a method of manufacturing the same and a membrane-electrode assembly using the same. The electrode may include the pores and pore density around a catalyst contained in the electrode may be selectively increased using a thermally decomposable chemical blowing agent, thereby improving mass transfer through the catalyst.
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公开(公告)号：US09923222B2
公开(公告)日：2018-03-20
申请号：US14581473
申请日：2014-12-23
发明人： Bo Ki Hong , Sae Hoon Kim , Kook Il Han , Kwang Ryeol Lee , Myoung Woon Moon
IPC分类号： H01M8/10 , H01M8/1004 , H01M4/86 , H01M4/88 , H01M8/1007 , H01M8/1018
CPC分类号： H01M8/1007 , H01M4/8605 , H01M4/8807 , H01M4/8817 , H01M4/8821 , H01M4/886 , H01M8/1004 , H01M2008/1095 , H01M2300/0082 , Y02E60/521 , Y10S977/778 , Y10S977/89
摘要： 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).
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公开(公告)号：US20170346105A1
公开(公告)日：2017-11-30
申请号：US15255422
申请日：2016-09-02
发明人： Suk Min Baeck , Dae Il Yoon , Yoo Chang Yang , Kook Il Han
IPC分类号： H01M8/0258 , H01M8/1004 , H01M8/2404
CPC分类号： H01M8/0258 , H01M8/1004 , H01M8/2404 , Y02P70/56
摘要： A fuel cell and a method for producing the same are provided. The fuel cell includes a membrane electrode assembly and a gas diffusion layer that is disposed at each of opposite surfaces of the membrane electrode assembly, and includes a plurality of compressed parts that are formed by pressure at positions spaced out at predetermined intervals on the gas diffusion layer. The fuel cell further includes a separator that is in contact with an outer surface of the gas diffusion layer, and has a plurality of land parts that protrude toward the gas diffusion layer, and a plurality of channel parts that form flow paths between the land parts. The land parts respectively protrude toward the compressed parts of the gas diffusion layer to come in contact with the compressed parts.
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公开(公告)号：US20150111127A1
公开(公告)日：2015-04-23
申请号：US14581473
申请日：2014-12-23
发明人： Bo Ki Hong , Sae Hoon Kim , Kook Il Han , Kwang Ryeol Lee , Myoung Woon Moon
IPC分类号： H01M8/10
CPC分类号： H01M8/1007 , H01M4/8605 , H01M4/8807 , H01M4/8817 , H01M4/8821 , H01M4/886 , H01M8/1004 , H01M2008/1095 , H01M2300/0082 , Y02E60/521 , Y10S977/778 , Y10S977/89
摘要： 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).
摘要翻译： 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。
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