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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：US11973230B2
公开(公告)日：2024-04-30
申请号：US17027142
申请日：2020-09-21
发明人： Su Won Seol , Ji Hoon Yang , Yoon Hwan Cho
IPC分类号： H01M4/86 , H01M4/88 , H01M8/1004
CPC分类号： H01M4/8626 , H01M4/8828 , H01M8/1004
摘要： Disclosed are an electrode including a porous substrate, a membrane-electrode assembly for a fuel cell including the same and a method of manufacturing the same. In the method of manufacturing the membrane-electrode assembly, the amount of a catalyst that is loaded depending on the position is applied in a gradational manner, thus efficiently using the catalyst, thereby reducing costs owing to the use of a decreased amount of the metal catalyst. Further, the membrane-electrode assembly includes the electrode including a porous substrate, thus making it easy to select hot-pressing conditions and increasing processing efficiency. The porous substrate is hydrophobic and the pore size in the electrode is not decreased compared to conventional electrodes, thus reducing flooding and generating various operation regions. The electrode including the porous substrate can minimize electrode loss, thus improving electrode durability.
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公开(公告)号：US20210336275A1
公开(公告)日：2021-10-28
申请号：US17027142
申请日：2020-09-21
发明人： Su Won Seol , Ji Hoon Yang , Yoon Hwan Cho
IPC分类号： H01M4/86 , H01M8/1004 , H01M4/88
摘要： Disclosed are an electrode including a porous substrate, a membrane-electrode assembly for a fuel cell including the same and a method of manufacturing the same. In the method of manufacturing the membrane-electrode assembly, the amount of a catalyst that is loaded depending on the position is applied in a gradational manner, thus efficiently using the catalyst, thereby reducing costs owing to the use of a decreased amount of the metal catalyst. Further, the membrane-electrode assembly includes the electrode including a porous substrate, thus making it easy to select hot-pressing conditions and increasing processing efficiency. The porous substrate is hydrophobic and the pore size in the electrode is not decreased compared to conventional electrodes, thus reducing flooding and generating various operation regions. The electrode including the porous substrate can minimize electrode loss, thus improving electrode durability.
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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
发明人： Yoon Hwan Cho , Kook Il Han , Su Won Seol
摘要： 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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5.发明申请公开(公告)号：US20200014037A1
公开(公告)日：2020-01-09
申请号：US16215066
申请日：2018-12-10
发明人： Su Won Seol , Yong Min Kim
IPC分类号： H01M4/88 , H01M8/1004 , H01M4/86 , H01M8/0286
摘要： Disclosed is a method of manufacturing a membrane electrode assembly with minimized interfacial resistance between an electrode and an electrolyte membrane. For instance, a catalyst admixture including a catalyst composite including a catalyst and a first binder, and a second binder may be applied to a porous substrate and the porous substrate may be impregnated with the second binder, thereby minimizing interfacial resistance between the electrode and the electrolyte membrane and reducing a thickness of the electrolyte membrane.
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6.发明申请公开(公告)号：US20190131630A1
公开(公告)日：2019-05-02
申请号：US15836579
申请日：2017-12-08
发明人： Yoon Hwan Cho , Su Won Seol , Ji Hoon Yang , Young Taek Kim , Dae Yong Son
摘要： The present invention relates to a method for manufacturing a polymer electrolyte electrode for fuel cells that can improve performance of the electrode for fuel cells and the capability to transfer substances into the electrode by sequentially bringing two kinds of cation exchange resins into contact with catalysts, powderizing the same and incorporating a catalyst having a multilayer structure including a core and two or more layers of shells into the electrode for fuel cells, and an electrode manufactured by the method.
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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
发明人： Yoon Hwan Cho , Kook Il Han , Su Won Seol
CPC分类号： H01M4/926 , H01M4/8647 , H01M4/8668 , H01M4/8814 , H01M4/8828 , H01M4/8882 , H01M4/9041 , H01M4/9083 , H01M4/921 , H01M4/8835
摘要： 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：US11362341B2
公开(公告)日：2022-06-14
申请号：US17007635
申请日：2020-08-31
发明人： Ji Hoon Yang , Su Won Seol
摘要： Disclosed is a catalyst slurry for fuel cells and a method for manufacturing the same in which two kinds of ionomers having different equivalent weights (EWs) are used such that the respective ionomers may be formed at positions suitable for maximally exhibiting the functions thereof.
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公开(公告)号：US20210313609A1
公开(公告)日：2021-10-07
申请号：US17101576
申请日：2020-11-23
发明人： Byeong Gab Ji , Su Won Seol , Dong Hwan Yoon , Kook ll Han , Yoon Hwan Cho
IPC分类号： H01M8/1004 , H01M4/88 , H01M4/90
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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10.发明授权公开(公告)号：US11171338B2
公开(公告)日：2021-11-09
申请号：US16215066
申请日：2018-12-10
发明人： Su Won Seol , Yong Min Kim
IPC分类号： H01M4/88 , H01M8/1004 , H01M4/86 , H01M8/0286 , H01M8/1018
摘要： Disclosed is a method of manufacturing a membrane electrode assembly with minimized interfacial resistance between an electrode and an electrolyte membrane. For instance, a catalyst admixture including a catalyst composite including a catalyst and a first binder, and a second binder may be applied to a porous substrate and the porous substrate may be impregnated with the second binder, thereby minimizing interfacial resistance between the electrode and the electrolyte membrane and reducing a thickness of the electrolyte membrane.
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