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公开(公告)号：US20240291073A1
公开(公告)日：2024-08-29
申请号：US18652224
申请日：2024-05-01
发明人： Victor Alfred Beck , Sarah Baker , Jonathan Tesner Davis , Eric Duoss , Daniel Tortorelli , Seth Evan Watts , Marcus A. Worsley
IPC分类号： H01M10/6568 , C25B3/26 , C25B9/15 , C25B9/70 , C25B11/032 , H01M4/02 , H01M4/04 , H01M4/86 , H01M4/88 , H01M8/18 , H01M10/6561
CPC分类号： H01M10/6568 , C25B9/15 , C25B9/70 , C25B11/032 , H01M4/04 , H01M4/8605 , H01M4/861 , H01M4/88 , H01M10/6561 , C25B3/26 , H01M2004/021 , H01M8/18
摘要： Electrochemical reactors with electrodes that have variable porosity across the electrode and associated methods are described. The electrodes are designed and micro-architected to have variable porosity and 3D flow. One example method of selecting porosities in an electrochemical reactor includes dividing an electrode of the electrochemical reactor into a plurality of unit cells and determining a plurality of cell-specific porosities for the plurality of unit cells as a function of a location for each of the plurality of unit cells. The cell-specific porosities are configured based on a rod diameter of each unit cell's internal structure relative to each unit cell's cell length, and each location in the electrode provides a selected fluid flow property and a selected conductive property to meet one or more performance metrics.
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公开(公告)号：US20240266555A1
公开(公告)日：2024-08-08
申请号：US18412269
申请日：2024-01-12
申请人： ESS TECH, INC.
发明人： Sean Casey
IPC分类号： H01M8/0221 , H01M4/86 , H01M4/88 , H01M4/90 , H01M4/96 , H01M8/0252 , H01M8/0258 , H01M8/18
CPC分类号： H01M8/0221 , H01M4/8652 , H01M4/88 , H01M4/9041 , H01M4/96 , H01M8/0252 , H01M8/0258 , H01M2004/8694 , H01M8/188
摘要： Systems and methods are provided for an electrode assembly. In one example, the electrode assembly includes a bipolar plate and a negative electrode spacer fixedly coupled to a surface of the bipolar plate. The negative electrode spacer may comprise an array of discrete structures protruding from the surface of the bipolar plate.
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公开(公告)号：US11996535B2
公开(公告)日：2024-05-28
申请号：US17667489
申请日：2022-02-08
发明人： Victor Alfred Beck , Sarah Baker , Jonathan Tesner Davis , Eric Duoss , Daniel Tortorelli , Seth Evan Watts , Marcus A. Worsley
IPC分类号： H01M10/6568 , C25B9/15 , C25B9/70 , C25B11/032 , H01M4/04 , H01M4/86 , H01M4/88 , H01M10/6561 , C25B3/26 , H01M4/02 , H01M8/18
CPC分类号： H01M10/6568 , C25B9/15 , C25B9/70 , C25B11/032 , H01M4/04 , H01M4/8605 , H01M4/861 , H01M4/88 , H01M10/6561 , C25B3/26 , H01M2004/021 , H01M8/18
摘要： Disclosed are electrochemical reactors with electrodes that have variable porosity across the electrode. The electrodes are designed and micro-architected to have variable porosity and 3D flow. In one aspect, an electrochemical cell apparatus is disclosed. The apparatus includes an electrochemical vessel and an electrochemical fluid contained in the electrochemical vessel. The apparatus further includes a porous electrode submerged in the electrochemical fluid in the electrochemical vessel, the porous electrode having different porosities in different areas of the porous electrode. The different porosities inhibit electrochemical fluid flow and increase electrical conductivity in first areas of the porous electrode with decreased porosity compared to second areas, and enable increased electrochemical fluid flow and decrease electrical conductivity in the second areas of the porous electrode with increased porosity compared to the first areas.
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公开(公告)号：US11837732B2
公开(公告)日：2023-12-05
申请号：US15778839
申请日：2016-12-08
发明人： Katsuya Sode , Takashi Chida , Toru Sugahara , Michio Wakatabe , Masaru Hashimoto , Tetsuya Sunahara , Yuya Umezaki
IPC分类号： H01M4/88 , H01M4/96 , H01M8/0234 , H01M8/0245 , H01M8/10 , H01M8/1004
CPC分类号： H01M4/8807 , H01M4/88 , H01M4/96 , H01M8/0234 , H01M8/0245 , H01M8/10 , H01M8/1004 , Y02P70/50
摘要： A porous carbon sheet including at least carbon fibers, having a thickness of 30 to 95 μm, a gas permeation resistance of 0.5 to 8.8 Pa, and a tensile strength of 5 to 50 N/cm, and a gas diffusion electrode substrate including a porous carbon sheet containing at least carbon fibers, at least one surface thereof having a microporous layer containing at least an electric conductive filler, the gas diffusion electrode substrate being dividable in the thickness direction into a smaller pore part and a larger pore part, the larger pore part having a thickness of 3 to 60 μm.
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公开(公告)号：US20190245232A1
公开(公告)日：2019-08-08
申请号：US16343522
申请日：2017-12-22
发明人： Jung Ho KIM , Hyeong Su KIM
IPC分类号： H01M8/1004 , C01B32/18 , C01B32/194 , C04B41/48 , C09C1/56 , C09C3/10 , H01M4/88 , C01B32/168
CPC分类号： H01M8/1004 , C01B32/168 , C01B32/18 , C01B32/194 , C04B41/48 , C04B41/4892 , C09C1/56 , C09C3/10 , H01M4/86 , H01M4/88 , H01M4/8803 , Y02E60/523 , Y02P70/56
摘要： Disclosed are a method for manufacturing an electrode, an electrode manufactured thereby, a membrane-electrode assembly including the electrode, and a fuel cell containing the membrane-electrode assembly. The method includes the steps of: preparing an electrode forming composition by mixing a catalyst with an ionomer; applying a low-frequency acoustic energy to the electrode forming composition to perform resonant vibratory mixing so as to coat the ionomer on the surface of the catalyst; and coating the electrode forming composition to manufacture an electrode.
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公开(公告)号：US20180269489A1
公开(公告)日：2018-09-20
申请号：US15760786
申请日：2016-09-14
申请人： Osaka Gas Co., Ltd.
发明人： Mitsuaki Echigo , Hisao Ohnishi , Kyohei Manabe , Osamu Yamazaki , Kazuyuki Minami , Yuji Tsuda
CPC分类号： H01M4/8605 , H01M4/8657 , H01M4/88 , H01M4/8885 , H01M4/9025 , H01M8/02 , H01M8/0232 , H01M8/12 , H01M8/1213 , H01M8/1253 , H01M8/126 , H01M2008/1293 , Y02E60/525 , Y02P70/56
摘要： Realized is an element having an electrolyte layer that is dense and has high gas barrier characteristics. A metal-supported electrochemical element includes at least a metal substrate as a support, an electrode layer formed on/over the metal substrate, a buffer layer formed on the electrode layer, and an electrolyte layer formed on the buffer layer. The electrode layer is porous and the electrolyte layer is dense. The buffer layer has density higher than density of the electrode layer and lower than density of the electrolyte layer.
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公开(公告)号：US20180261866A1
公开(公告)日：2018-09-13
申请号：US15758619
申请日：2015-09-09
IPC分类号： H01M8/1004 , H01M4/92 , H01M4/88
CPC分类号： H01M8/1004 , H01M4/86 , H01M4/88 , H01M4/8828 , H01M4/9075 , H01M4/9083 , H01M4/925 , H01M4/926 , H01M8/02 , H01M8/10 , H01M8/1018 , H01M8/1027 , H01M8/1034 , H01M8/1039 , H01M2004/8689 , H01M2008/1095 , H01M2008/128 , H01M2250/20 , H01M2300/0082 , Y02E60/521 , Y02P70/56 , Y02T90/32
摘要： Provided is a fuel cell electrode catalyst layer which includes a catalyst carrier having a large specific surface area and a polymer electrolyte having a form in which at least a portion thereof is agglomerated, the fuel cell electrode catalyst layer exhibiting excellent power generation performance in a high-humidity environment (for example, 100% RH).
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公开(公告)号：US20180226671A1
公开(公告)日：2018-08-09
申请号：US15884567
申请日：2018-01-31
发明人： Norikazu AIKAWA , Kazuo HATA , Nobuhisa NODA
IPC分类号： H01M8/1253 , H01M4/88
CPC分类号： H01M8/1253 , C04B35/486 , C04B35/6342 , C04B35/63424 , C04B2235/3224 , C04B2235/3225 , C04B2235/3229 , C04B2235/5409 , C04B2235/5445 , C04B2235/5463 , C04B2235/6025 , C04B2235/762 , C04B2235/77 , H01M4/88 , H01M8/006 , H01M2008/1293 , H01M2250/10 , H01M2300/0077 , Y02B90/14 , Y02E60/525 , Y02P70/56
摘要： The objective of one or more embodiments of the present invention is to provide a zirconia electrolyte which has high strength and which is suitable for a solid electrolyte layer of a solid oxide fuel cell, and a method for producing a zirconia electrolyte having high strength. The zirconia electrolyte according to one or more embodiments of the present invention is characterized in essentially consisting of zirconia stabilized by one or a plurality of oxides of rare earth selected from the group of scandium, yttrium, cerium, gadolinium and ytterbium, wherein a standard deviation of pore numbers in 10 or more regions having an area of 50 μm2 and not overlapping with each other on a fracture surface is 2.5 or more.
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公开(公告)号：US20180198149A1
公开(公告)日：2018-07-12
申请号：US15744640
申请日：2016-07-29
发明人： Jedeok KIM , Yaojian ZHANG
IPC分类号： H01M8/1027 , H01M8/1032 , H01M8/103 , H01M8/1025 , C08L81/06
CPC分类号： H01M8/1027 , C08G65/38 , C08G75/23 , C08L45/00 , C08L71/12 , C08L81/06 , C08L81/08 , C08L2203/20 , G01R33/46 , H01M4/8663 , H01M4/88 , H01M8/1023 , H01M8/1025 , H01M8/103 , H01M8/1032 , H01M8/1039 , H01M2008/1095 , H01M2300/0082 , Y02P70/56
摘要： The present invention addresses the problem of providing a crosslinked film and a hydrocarbon-based proton conducting solid electrolyte having a proton conductivity equal to that of a perfluorosulfonate ion exchange polymer. Disclosed as a means for solving this problem is a proton conducting polymer electrolyte which is composed of a sulfonated polyphenyl compound having a plurality of repeating units, and wherein two or more (for example, four or six) sulfonic groups are introduced into one repeating unit on average. The sulfonated polyphenyl compound may be a polymer or copolymer having a skeleton structure selected from among a polyaryl sulfide, a polyaryl ether, a polyarylsulfone, a polyarylketone and a polyaryl hexafluoroisopropylidene. A proton conducting solid polymer electrolyte membrane is able to be produced by shaping this proton conducting polymer electrolyte into a film form and crosslinking this proton conducting polymer electrolyte via sulfonic groups.
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公开(公告)号：US20180166709A1
公开(公告)日：2018-06-14
申请号：US15825367
申请日：2017-11-29
发明人： Sun Ho LEE , Sunha HWANG
IPC分类号： H01M8/0286 , H01M8/124 , H01M4/88
CPC分类号： H01M8/0286 , B26D5/007 , B26D5/20 , B26D5/34 , H01M4/88 , H01M8/1004 , H01M8/124 , Y02P70/56
摘要： A method of setting a cutting time of a gasket during manufacture of a membrane electrode assembly (MEA) is provided. The method includes: moving a reaction sheet, in which electrode layers are formed on an electrolyte membrane with a predetermined interval; photographing a boundary area between the electrolyte membrane and the electrode layer in the moving reaction sheet by using a fixed vision; setting a front end reference line and a rear end reference line between a front-most end and a rear-most end in the boundary area; calculating a trigger reference line between the front end reference line and the rear end reference line, except for a front portion of the front end reference line and a rear portion of the rear end reference line; and calculating a cutting time of a gasket based on the trigger reference line.
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