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Patent Agency Ranking
公开(公告)号：US12195641B2
公开(公告)日：2025-01-14
申请号：US17612871
申请日：2021-02-24
Applicant: SHOWA DENKO K.K.
Inventor： So Miyaishi , Masahiro Okubo , Masayuki Yoshimura , Wataru Sakane , Teppei Tanaka , Saeko Nakamura , Saori Yamaki
Abstract: A corrosion-resistant member including: a metal base material (10); and a corrosion-resistant coating (30) formed on the surface of the base material (10). The corrosion-resistant coating (30) is a stack of a magnesium fluoride layer (31) and an aluminum fluoride layer (32) in order from the base material (10) side. The aluminum fluoride layer (32) has a first crystalline region (32A) and a second crystalline region (32B) containing crystalline aluminum fluoride. The first crystalline region (32A) is a region in which diffraction spot arrays having regularity are observed in an electron beam diffraction image obtained by irradiation with electron beams having a beam diameter of 10 nm to 20 nm. The second crystalline region (32B) is a region in which a plurality of diffraction spots is observed but diffraction spot arrays having regularity are not observed in an electron beam diffraction image obtained by irradiation with the above-described electron beams.
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公开(公告)号：US09660272B2
公开(公告)日：2017-05-23
申请号：US14903311
申请日：2014-07-08
Applicant: SHOWA DENKO K.K.
Inventor： Yuji Ito , Junya Sakaguchi , Takuya Imai , Ryuji Monden , Masayuki Yoshimura
CPC classification number: H01M4/8652 , H01M4/8657 , H01M4/9016 , H01M4/9041 , H01M4/92 , H01M4/925 , H01M8/10 , H01M2008/1095
Abstract: An oxygen reduction catalyst which includes composite particles including a portion including an inorganic metal compound and a portion containing carbon. The composite particles include a metal element M1, carbon, and oxygen as constituent elements; the amount of carbon atoms is 1 to 10 mol, and the amount of oxygen atoms is 1 to 3 mol, assuming that the total amount of atoms in the metal element M1 is 1 mol; a G-band and a D-band are present in a Raman spectrum, and a V/G ratio defined in an expression described below is 0.10 to 0.35: V/G ratio=(minimum value of spectral intensity in region V which is a region between G-band and D-band)/(peak intensity in G-band).
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公开(公告)号：US11859288B2
公开(公告)日：2024-01-02
申请号：US17611768
申请日：2020-09-03
Applicant: SHOWA DENKO K.K.
Inventor： So Miyaishi , Masahiro Okubo , Masayuki Yoshimura , Wataru Sakane , Teppei Tanaka , Saeko Nakamura , Saori Yamaki
CPC classification number: C23C28/345 , C23C28/32 , H01J37/32477
Abstract: A corrosion-resistant member including: a metal base material (10); a corrosion-resistant coating (30) formed on the surface of the base material (10); and a buffer layer (20) formed between the base material (10) and the corrosion-resistant coating (30). The base material (10) contains a main element having the highest mass content ratio among elements contained in the base material (10) and a trace element having a mass content ratio of 1% by mass or less. The corrosion-resistant coating (30) contains at least one kind selected from magnesium fluoride, aluminum fluoride, and aluminum oxide. The buffer layer (20) contains an element of the same kind as the trace element, and the content ratio obtained by energy dispersive X-ray analysis of the element of the same kind as the trace element contained in the buffer layer (20) is 2% by mass or more and 99% by mass or less.
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公开(公告)号：US10205174B2
公开(公告)日：2019-02-12
申请号：US15106545
申请日：2014-08-26
Applicant: SHOWA DENKO K.K.
Inventor： Tatsuya Fukuta , Takashi Sato , Masayuki Yoshimura , Yuji Ito
IPC: H01M4/88 , H01M4/90 , B01D53/86 , B01J35/02 , H01M8/1004 , B01J23/00 , H01M4/04 , H01M4/48 , H01M8/08 , B44C3/02 , H01M4/08 , B44C1/175
Abstract: An electrode catalyst ink composition which includes metal oxide-based electrode catalyst particles, an electrolyte, and a mixed liquid medium, wherein the mixed liquid medium contains 40 to 85% by mass of water; 5 to 30% by mass of an aqueous solvent (A) that has an evaporation rate of 2.0 or lower when the evaporation rate of water at 25° C. is 1, and a solubility parameter (SP value) of not less than 9; and 10 to 30% by mass of a monoalcohol (B) that has an evaporation rate of higher than 2.0 when the evaporation rate of water at 25° C. is 1, and not more than 3 carbon atoms, provided that the total amount of the mixed liquid medium is 100% by mass.
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公开(公告)号：US20150155569A1
公开(公告)日：2015-06-04
申请号：US14413441
申请日：2013-04-02
Applicant: SHOWA DENKO K.K.
Inventor： Noriyasu Tezuka , Masaki Horikita , Takuya Imai , Masayuki Yoshimura , Yuji Ito , Takashi Sato
IPC: H01M4/90
CPC classification number: H01M4/9016 , H01M4/8652 , H01M4/8663 , H01M4/8673 , H01M4/90 , H01M4/9041 , H01M4/9083 , H01M4/921 , H01M4/925 , H01M8/04126 , H01M8/04835 , H01M2004/8684 , H01M2004/8689 , H01M2008/1095 , H01M2300/0082
Abstract: Provided is a method for operating a fuel cell involving supplying an electrode with a low or non-humidified gas that achieves no significant decrease of voltage as compared with when a high-humidified feed gas is used. The method for operating a fuel cell having a membrane electrode assembly includes a cathode, an anode and an electrolyte membrane interposed between both the electrodes, wherein the cathode has a layer including an oxygen reducing catalyst including composite particles which include atoms of a metal element M1, carbon, nitrogen and oxygen and in which primary particles of a compound of the metal element M1 are dispersed in a carbon structure, which method includes supplying the cathode with an oxidizing agent gas which includes an oxygen gas and which has a relative humidity at a temperature of the membrane electrode assembly of 60% or less, and supplying the anode with a fuel gas.
Abstract translation: 提供了一种用于操作燃料电池的方法，该燃料电池涉及向使用低湿或非加湿气体的电极提供电压，与使用高湿化进料气体相比，不能显着降低电压。 用于操作具有膜电极组件的燃料电池的方法包括阴极，阳极和插入在两个电极之间的电解质膜，其中阴极具有包括氧还原催化剂的层，所述氧还原催化剂包括包含金属元素M1的原子的复合颗粒 碳，氮和氧，其中金属元素M1的化合物的一次粒子分散在碳结构中，该方法包括向阴极供给包含氧气的氧化剂气体，并且其相对湿度为 膜电极组件的温度为60％以下，向阳极供给燃料气体。
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