公开(公告)号：US20240263329A1

公开(公告)日：2024-08-08

申请号：US18289670

申请日：2022-05-11

Applicant: TORAY INDUSTRIES, INC.

Inventor： Tomoyuki KUNITA ,  Kenta MINAMIBAYASHI ,  Shusuke SHIRAI ,  Kazuma MATSUI ,  Daisuke IZUHARA

IPC: C25B13/08 ,  C25B9/23

CPC classification number: C25B13/08 ,  C25B9/23

Abstract: An electrolyte membrane laminate including: a first electrolyte membrane having a first main surface and a second main surface; and a first interlayer and a second electrolyte membrane in this order on the first main surface of the first electrolyte membrane; wherein the first electrolyte membrane contains a hydrocarbon-based polymer electrolyte, the first interlayer contains a polymer electrolyte and particles, and the second electrolyte membrane contains a polymer electrolyte and particles containing a transition metal element. Provided is an electrolyte membrane laminate having an excellent hydrogen-proof barrier property and a good durability.

公开(公告)号：US20210273236A1

公开(公告)日：2021-09-02

申请号：US17253909

申请日：2019-07-17

Applicant: TORAY INDUSTRIES, INC.

Inventor： Ryuta SAKASHITA ,  Yuta SHINTAKU ,  Daisuke IZUHARA ,  Kiyoshi MINOURA ,  Mei ABE

IPC: H01M4/88 ,  H01M8/1018 ,  H01M4/92

Abstract: An object of the present invention is to provide, in the manufacture of a membrane-catalyst assembly including a polymer electrolyte membrane and a catalyst layer bonded to the polymer electrolyte membrane, a method that achieves both the relaxation of thermocompression bonding conditions and the improvement of adhesion between the catalyst layer and the electrolyte membrane with high productivity. A main object of the present invention is to provide a method of manufacturing a membrane-catalyst assembly including an electrolyte membrane and a catalyst layer bonded to the electrolyte membrane, the method including a liquid application step of applying a liquid to a surface of the catalyst layer before bonding, and a thermocompression bonding step of bonding, to the electrolyte membrane, the catalyst layer to which the liquid is applied by thermocompression bonding.

公开(公告)号：US20150380759A1

公开(公告)日：2015-12-31

申请号：US14843695

申请日：2015-09-02

Applicant: TORAY INDUSTRIES, INC.

Inventor： Daisuke IZUHARA ,  Hiroaki UMEDA ,  Emi AMANO ,  Tomoyuki KUNITA

IPC: H01M8/10 ,  C07C317/22 ,  C07C309/44

CPC classification number: H01M8/1032 ,  C07C309/44 ,  C07C309/60 ,  C07C317/22 ,  C08G65/40 ,  C08G65/4012 ,  C08G65/4056 ,  C08G2650/40 ,  H01B1/122 ,  H01M8/1025 ,  H01M8/1027 ,  H01M8/1039 ,  H01M2008/1095 ,  H01M2300/0082 ,  Y02E60/521

Abstract: Provided are an aromatic sulfonic acid derivative and a sulfonic acid group-containing polymer, each of which has excellent proton conductivity even under low humidification conditions, while having excellent mechanical strength and chemical stability, and enables a solid polymer fuel cell to achieve high output and excellent physical durability when used therein. This aromatic sulfonic acid derivative has a specific structure and is characterized in that a sulfonic acid group is introduced into more than 50% of all the phenyl groups. This sulfonic acid group-containing polymer is characterized by being obtained by polymerization using the aromatic sulfonic acid derivative, and is also characterized by having a specific structure.

Abstract translation: 提供了即使在低加湿条件下也具有优异的质子传导性的芳香族磺​​酸衍生物和含磺酸基的聚合物，同时具有优异的机械强度和化学稳定性，并且能够使固体高分子型燃料电池实现高输出， 使用时具有良好的物理耐久性。 该芳香族磺酸衍生物具有特定的结构，其特征在于，在全部苯基的50％以上引入磺酸基。 该含磺酸基的聚合物的特征在于通过使用芳香族磺酸衍生物的聚合得到，特征在于具有特定的结构。

公开(公告)号：US20240178424A1

公开(公告)日：2024-05-30

申请号：US18282274

申请日：2022-02-14

Applicant: TORAY INDUSTRIES, INC.

Inventor： Kazuho MURAKAMI ,  Kazuma MATSUI ,  Tsuyoshi TANAKA ,  Daisuke IZUHARA

IPC: H01M8/1004 ,  C25B1/04 ,  H01M8/10 ,  H01M8/1023 ,  H01M8/1025

CPC classification number: H01M8/1004 ,  C25B1/04 ,  H01M8/1023 ,  H01M8/1025 ,  H01M2008/1095 ,  H01M2300/0082

Abstract: [Problem] Developed is a polymer electrolyte membrane having excellent proton conductivity even under low-humidity conditions, and having excellent mechanical strength and chemical stability.
[Solution] A polymer electrolyte membrane containing a block copolymer having one or more ionic segments and one or more nonionic segments, wherein the ion exchange capacity (meq/g) of the block copolymer is more than 2.0 and less than 3.1, wherein the polymer electrolyte membrane has a co-continuous phase-separation structure, wherein the average period size (nm) of the co-continuous phase-separation structure is less than 110 nm as observed by transmission electron microscopy, and wherein the average period size (nm) of the co-continuous phase-separation structure and the ion exchange capacity (meq/g) satisfy the relation of: average period size (nm)/ion exchange capacity (meq/g)≥21.

公开(公告)号：US20230231165A1

公开(公告)日：2023-07-20

申请号：US18008564

申请日：2021-06-01

Applicant: TORAY INDUSTRIES, INC.

Inventor： Tomohiro SAKAUE ,  Daisuke IZUHARA ,  Masaru HASHIMOTO

IPC: H01M8/04701 ,  H01M4/90 ,  H01M8/04746 ,  H01M8/04828 ,  H01M8/1023 ,  H01M8/1004

CPC classification number: H01M8/04701 ,  H01M4/9075 ,  H01M8/04753 ,  H01M8/04835 ,  H01M8/1023 ,  H01M8/1004 ,  H01M2300/0082 ,  H01M2008/1095

Abstract: The present invention provides a method of operating a fuel cell, which method enables a polymer electrolyte membrane to be humidified sufficiently under high-temperature conditions, and can obtain excellent power generation performance. The present invention is a method of operating a fuel cell including a membrane electrode assembly containing an electrolyte membrane, catalyst layers, and gas diffusion layers, the method including a step of setting the operating temperature of the fuel cell at 100° C. or more, wherein, in the step, the relative humidity of supply gas to be supplied to the fuel cell is 70% or more, and the back pressure of the supply gas is 330 kPa or more.

公开(公告)号：US20170077540A1

公开(公告)日：2017-03-16

申请号：US15122707

申请日：2015-03-24

Applicant: TORAY INDUSTRIES, INC.

Inventor： Shinya ADACHI ,  Daisuke IZUHARA

IPC: H01M8/1081 ,  C08J7/12 ,  C08J5/22 ,  H01M8/1088

Abstract: The present invention provides a support film for solution film forming, said support film combining polymer solution's wettability during a solution film forming step, early separation resistance during a drying step and wetting step, and easy release properties when intentionally separating a polymer film. Provided is a support film for solution film forming, said support film being formed by introducing fluorine atoms to at least one surface of abase film that is formed from one or more types of polymers selected from the group consisting of polyethylene, polypropylene, polyethylene terephthalate, polybutylene terephthalate, polyethylene napthalate, polyphenylene sulphide, polysulfones, polyether ketone, polyether ether ketone, polyimides, polyetherimide, polyamides, polyamide-imides, polybenzimidazoles, polycarbonates, polyarylates, and polyvinyl chloride. Therein, the ratio, measured by X-ray photoelectron spectroscopy, of the number of fluorine atoms/the number of carbon atoms in the surface to which the fluorine atoms are introduced, i.e. the modified surface, is 0.02-0.8, inclusive.

Abstract translation: 本发明提供了一种用于溶液膜形成的支撑膜，所述支撑膜在溶液膜形成步骤中组合聚合物溶液的润湿性，在干燥步骤期间的早期分离阻力和润湿步骤，以及在有意分离聚合物膜时容易剥离的性质。 提供了一种用于溶液膜形成的支撑膜，所述支撑膜通过将氟原子引入至少一个由一种或多种选自聚乙烯，聚丙烯，聚对苯二甲酸乙二醇酯，聚对苯二甲酸乙二醇酯， 聚对苯二甲酸丁二醇酯，聚萘二甲酸乙二醇酯，聚苯硫醚，聚砜，聚醚酮，聚醚醚酮，聚酰亚胺，聚醚酰亚胺，聚酰胺，聚酰胺 - 酰亚胺，聚苯并咪唑，聚碳酸酯，聚芳酯和聚氯乙烯。 其中，通过X射线光电子能谱测定的氟原子数/引入氟原子的表面即改性表面的碳原子数的比例为0.02-0.8，包括端值。

公开(公告)号：US20240182639A1

公开(公告)日：2024-06-06

申请号：US18280549

申请日：2022-03-17

Applicant: TORAY INDUSTRIES, INC.

Inventor： Kazuho MURAKAMI ,  Kazuma MATSUI ,  Tsuyoshi TANAKA ,  Daisuke IZUHARA

IPC: C08G65/40 ,  C25B13/08 ,  H01M8/1025 ,  H01M8/10

CPC classification number: C08G65/4056 ,  C25B13/08 ,  H01M8/1025 ,  H01M2008/1095

Abstract: Provided is a polymer electrolyte article having high proton conductivity, mechanical strength, and chemical stability, wherein, for the average periodic distance in the phase-separated structure of the polymer electrolyte article observed by small-angle X-ray scattering, the average periodic distance in the atmosphere and the average periodic distance in water satisfy the following condition: (the average periodic distance in water)/(the average periodic distance in the atmosphere)≤2.20.

公开(公告)号：US20240170704A1

公开(公告)日：2024-05-23

申请号：US18282278

申请日：2022-02-28

Applicant: TORAY INDUSTRIES, INC.

Inventor： Kazuho MURAKAMI ,  Kazuma MATSUI ,  Tsuyoshi TANAKA ,  Daisuke IZUHARA

IPC: H01M8/1025 ,  C08G65/40 ,  C25B1/04 ,  C25B13/08 ,  H01M8/10

CPC classification number: H01M8/1025 ,  C08G65/4056 ,  C25B13/08 ,  C25B1/04 ,  H01M2008/1095

Abstract: A polymer electrolyte material composed of a block copolymer having a segment containing an ionic group (hereinafter referred to as an “ionic segment”) and a segment containing no ionic group (hereinafter referred to as a “nonionic segment”), wherein the polymer electrolyte material has a phase-separation structure, and satisfies at least one of the following condition 1 or condition 2: the saturated crystallinity of the polymer electrolyte material is 5% or more and 30% or less, as measured by wide-angle X-ray diffraction; and the ion exchange capacity (IEC) of the polymer electrolyte material is 1.8 meq/g or more and 3.0 meq/g or less, and the product of the IEC (meq/g) of the polymer electrolyte material and the heat of crystallization (J/g) of the polymer electrolyte material, as measured by differential scanning calorimetry analysis, is 35.0 or more and 47.0 or less. Provided is a polymer electrolyte material having good mechanical durability and excellent proton conductivity.

公开(公告)号：US20170066892A1

公开(公告)日：2017-03-09

申请号：US15122781

申请日：2015-03-24

Applicant: TORAY INDUSTRIES, INC.

Inventor： Shinya ADACHI ,  Daisuke IZUHARA

IPC: C08J7/12 ,  H01M4/88

CPC classification number: C08J7/126 ,  C08J5/2262 ,  C08J2300/22 ,  C08J2367/02 ,  C25B9/10 ,  H01M4/8814 ,  H01M4/8817 ,  H01M4/8821 ,  H01M4/92 ,  H01M8/1004 ,  H01M8/1018 ,  H01M8/188 ,  H01M12/06 ,  H01M2008/1095 ,  Y02P20/582

Abstract: The present invention provides a substrate film that has a catalyst coating liquid having good coating properties when producing a membrane electrode assembly, has a catalyst layer and support film having good release properties after the catalyst layer is transferred to an electrolyte membrane using a catalyst transfer sheet, and does not contaminate the catalyst layer. Provided is a substrate film for a catalyst transfer sheet, said substrate film being formed by introducing fluorine atoms to at least one surface of a base film formed from one or more types of polymers selected from the group consisting of polyethylene, polypropylene, polyethylene terephthalate, polybutylene terephthalate, polyethylene napthalate, polyphenylene sulfide, polysulfones, polyether ketone, polyether ether ketone, polyimides, polyetherimide, polyamides, polyamide-imides, polybenzimidazoles, polycarbonates, polyarylates, and polyvinyl chloride, wherein the ratio, measured by X-ray photoelectron spectroscopy, of the number of fluorine atoms/the number of carbon atoms in the surface to which the fluorine atoms are introduced, i.e. the modified surface, is 0.02-1.9, inclusive.

Abstract translation: 本发明提供一种在制造膜电极组件时具有涂布性好的催化剂涂布液的基材膜，在使用催化剂转印片材将催化剂层转印到电解质膜之后，具有催化剂层和具有良好剥离性的载体膜 ，并且不污染催化剂层。 提供了一种催化剂转印片用基材膜，所述基材膜通过将氟原子引入到由选自聚乙烯，聚丙烯，聚对苯二甲酸乙二醇酯，聚对苯二甲酸乙二醇酯等的一种或多种聚合物形成的基膜的至少一个表面上而形成， 聚对苯二甲酸丁二醇酯，聚萘二甲酸乙二醇酯，聚苯硫醚，聚砜，聚醚酮，聚醚醚酮，聚酰亚胺，聚醚酰亚胺，聚酰胺，聚酰胺 - 酰亚胺，聚苯并咪唑，聚碳酸酯，聚芳酯和聚氯乙烯，其中通过X射线光电子能谱测量， 的氟原子数/导入氟原子的表面中的碳原子数（即改性表面）为0.02-1.9。

公开(公告)号：US20150200413A1

公开(公告)日：2015-07-16

申请号：US14664598

申请日：2015-03-20

Applicant: TORAY INDUSTRIES, INC.

Inventor： Daisuke IZUHARA ,  Hiroshi TAIKO ,  Yuriko OKADA ,  Shinya ADACHI ,  Masataka NAKAMURA

IPC: H01M8/10

CPC classification number: H01M8/1041 ,  C08G65/4056 ,  C08J5/2256 ,  C08J2371/12 ,  H01B1/122 ,  H01M8/04197 ,  H01M8/1025 ,  H01M8/1072 ,  H01M8/1088 ,  H01M2008/1095 ,  H01M2300/0082 ,  Y02E60/523 ,  Y02P20/582 ,  Y02P70/56

Abstract: The present invention relates to a method for producing a polymer electrolyte molded article, which comprises forming a polymer electrolyte precursor having a protective group and an ionic group, and deprotecting at least a portion of protective groups contained in the resulting molded article to obtain a polymer electrolyte molded article. According to the present invention, it is possible to obtain a polymer electrolyte material and a polymer electrolyte molded article, which are excellent in proton conductivity and are also excellent in fuel barrier properties, mechanical strength, physical durability, resistance to hot water, resistance to hot methanol, processability and chemical stability. A polymer electrolyte fuel cell using a polymer electrolyte membrane, polymer electrolyte parts or a membrane electrode assembly can achieve high output, high energy density and long-term durability.