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公开(公告)号：US11094954B2
公开(公告)日：2021-08-17
申请号：US15907902
申请日：2018-02-28
发明人： Taishi Fukazawa , Wu Mei , Yuta Kanai
IPC分类号： H01M8/1004 , H01M8/242 , H01M8/04291 , H01M4/88 , H01M4/64 , H01M4/86 , H01M8/0245 , H01M8/1018
摘要： An electrode of an embodiment includes a catalyst layer having pores. A mode diameter of the pores is 10 μm or more and 100 μm or less. The catalyst layer may have a thickness of 0.05 μm or more and 3.0 μm or less. A value of the mode diameter of the pores may three times or more a value of a thickness of the catalyst layer.
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公开(公告)号：US10777821B2
公开(公告)日：2020-09-15
申请号：US16128641
申请日：2018-09-12
发明人： Wu Mei , Atsuko Iida , Norihiro Yoshinaga , Yoshihiko Nakano
IPC分类号： H01M4/86 , H01M4/90 , H01M8/1004 , H01M8/1018
摘要： A catalyst of an embodiment includes a porous structure including aggregates of particles containing Ru and metal atoms M different from Ru. The particles are a metal oxide. A metal atom ratio of the metal atom M in a surface region of the porous structure is higher than that of the metal atom M in the porous structure as a whole.
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公开(公告)号：US20190071784A1
公开(公告)日：2019-03-07
申请号：US15913110
申请日：2018-03-06
发明人： Norihiro Yoshinaga , Atsuko Iida , Wu Mei , Yoshihiko Nakano
摘要： A membrane electrode assembly includes a pair of electrodes, each having a feeder layer that is porous and made of a conductive material, and an electrolyte membrane disposed between the pair of electrodes. At least one of the electrodes has a catalyst layer disposed in the feeder layer. In a cross section of the feeder layer, an electrolyte exists in a first region less than or equal to 80% of a thickness of the feeder layer from the electrolyte membrane toward an opposite direction to the electrolyte membrane, the catalyst layer exists at 50% or more of an outer circumference of a cross section of the conductive material in the first region, and the catalyst layer exists at 10% or less of the outer circumference of the cross section of the conductive material in a second region other than the first region.
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4.发明授权公开(公告)号：US09972849B2
公开(公告)日：2018-05-15
申请号：US14515245
申请日：2014-10-15
发明人： Mutsuki Yamazaki , Yoshihiko Nakano , Wu Mei
IPC分类号： H01M4/86 , H01M4/88 , H01M4/92 , H01M8/0234 , H01M8/1007
CPC分类号： H01M4/8875 , H01M4/8605 , H01M4/8871 , H01M4/921 , H01M4/926 , H01M8/0234 , H01M8/1007 , Y02P70/56
摘要： According to an aspect of the present invention, there is provided a collector member 10 comprising a sheet-shaped base material 11 having a carbon-containing fiber 11a and catalyst particles 12 adhered to an outer periphery of the fiber 11a, containing a noble metal or an alloy thereof, and having an average particle diameter of 0.1 to 2 μm.
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公开(公告)号：US20170183788A1
公开(公告)日：2017-06-29
申请号：US15262310
申请日：2016-09-12
发明人： Atsuko Iida , Norihiro Yoshinaga , Shigeru Matake , Wu Mei
CPC分类号： C25B11/0447 , C23C14/0036 , C23C14/083 , C23C14/5806 , C25B1/10 , C25B11/0415 , C25B11/0478 , C25B11/0484 , Y02E60/366
摘要： An electrode of an embodiment includes a base material, and a catalyst layer provided on the base material and having a porous structure. When a sum of heights of all peaks belonging to Ir oxide is I0, the height of a peak of IrO2 (110) is T1, and the height of a peak of IrO2 (211) is I2, a ratio of (I1+I2)/I0, which is a ratio of spectra obtained by X-ray diffraction measurements using Kα rays of Cu in the catalyst layer, is 50% or more and 100% or less in a range of a diffraction angle of 20 degrees or more and 70 degrees or less.
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公开(公告)号：US11329294B2
公开(公告)日：2022-05-10
申请号：US16128635
申请日：2018-09-12
发明人： Yoshihiko Nakano , Norihiro Yoshinaga , Wu Mei , Taishi Fukazawa
IPC分类号： H01M4/88 , H01M4/92 , H01M8/1004 , H01M8/241 , C25B13/08 , C25B1/04 , C25B9/73 , H01M8/1041
摘要： A laminated electrolyte membrane of an embodiment includes: a first electrolyte membrane; a second electrolyte membrane; and a nanosheet laminated catalyst layer provided between the first electrolyte membrane and the second electrolyte membrane and including a laminated structure in which a plurality of nanosheet catalysts is laminated with a gap.
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公开(公告)号：US11223051B2
公开(公告)日：2022-01-11
申请号：US16800997
申请日：2020-02-25
发明人： Yuta Kanai , Norihiro Yoshinaga , Taishi Fukazawa , Wu Mei
IPC分类号： H01M4/90 , H01M8/1004 , H01M4/92
摘要： According to an embodiment, a laminated catalyst includes a first catalyst layer mainly including a noble metal mainly containing Pt, a second catalyst layer mainly including a mixture of an oxide of a noble metal mainly containing Ir and Ru and a noble metal mainly containing Pt, and a third catalyst layer mainly including an oxide of a noble metal mainly containing Ir and Ru The first catalyst layer, the second catalyst layer, and the third catalyst layer are laminated in order.
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公开(公告)号：US10535888B2
公开(公告)日：2020-01-14
申请号：US15706111
申请日：2017-09-15
发明人： Yoshihiko Nakano , Wu Mei , Taishi Fukazawa , Yuta Kanai , Hiroki Hiraga
IPC分类号： H01M8/1004 , H01M8/241 , H01M4/86
摘要： A membrane electrode assembly of an embodiment includes: a first electrode having a first base, and a first catalyst layer provided on the first base, the first catalyst layer including a plurality of first catalyst units with a laminated structure, and the laminated structure including void layers; and an electrolyte membrane being in direct contact with both first surfaces of the first catalyst units facing each other among the first catalyst units, and second surfaces of the first catalyst units on the opposite side from the first base side. A portion is included where the electrolyte membrane exists over a region being at least 80% of a thickness of the first catalyst layer from the second surfaces of the first catalyst units toward the first base.
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9.发明申请公开(公告)号：US20190296380A1
公开(公告)日：2019-09-26
申请号：US16293170
申请日：2019-03-05
发明人： Atsuko IIDA , Norihiro Yoshinaga , Wu Mei , Yoshihiko Nakano
摘要： A catalyst laminate includes a plurality of catalyst layers containing at least one of a noble metal and an oxide of the noble metal and at least one of a non-noble metal and an oxide of the non-noble metal, including: two or more first catalyst layers and two or more second catalyst layers. In an atomic percent of the noble metal obtained by using a line analysis by energy dispersive X-ray spectroscopy in a thickness direction of the catalyst laminate. The first catalyst layer is less than an average of a highest value and a lowest value of the atomic percent of the noble metal. The second catalyst layer has an atomic percent of the noble metal equal to or greater than the average of the highest value and the lowest value thereof. The second catalyst layer is present between the first catalyst layers.
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公开(公告)号：US20180277871A1
公开(公告)日：2018-09-27
申请号：US15706111
申请日：2017-09-15
发明人： Yoshihiko Nakano , Wu Mei , Taishi Fukazawa , Yuta Kanai , Hiroki Hiraga
IPC分类号： H01M8/1004 , H01M8/241 , H01M4/86
CPC分类号： H01M8/1004 , H01M4/8626 , H01M4/881 , H01M8/241 , H01M2250/20 , Y02E60/521 , Y02T90/32
摘要： A membrane electrode assembly of an embodiment includes: a first electrode having a first base, and a first catalyst layer provided on the first base, the first catalyst layer including a plurality of first catalyst units with a laminated structure, and the laminated structure including void layers; and an electrolyte membrane being in direct contact with both first surfaces of the first catalyst units facing each other among the first catalyst units , and second surfaces of the first catalyst units on the opposite side from the first base side. A portion is included where the electrolyte membrane exists over a region being at least 80% of a thickness of the first catalyst layer from the second surfaces of the first catalyst units toward the first base.
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