公开(公告)号：US10243229B2

公开(公告)日：2019-03-26

申请号：US15124044

申请日：2015-03-06

Applicant: Toray Industries, Inc.

Inventor： Tomoyuki Kunita ,  Daisuke Izuhara ,  Hiroaki Umeda

IPC: C08J5/22 ,  H01B1/12 ,  C08G65/40 ,  C08G73/18 ,  C08G75/23 ,  C08L71/00 ,  C08L71/08 ,  C08L79/04 ,  H01M8/103 ,  H01M8/1018 ,  H01M8/1025 ,  H01M8/1027 ,  H01M8/1032 ,  H01M8/1044

Abstract: A polymer electrolyte composition is excellent in practicality which has such an excellent chemical stability as to be able to withstand a strong oxidizing atmosphere during operation of a fuel cell and is capable of achieving excellent proton conductivity under a low-humidified condition and excellent mechanical strength and physical durability as well as a polymer electrolyte membrane, a membrane electrode assembly, and a polymer electrolyte fuel cell which use the polymer electrolyte composition. The polymer electrolyte membrane is a polymer electrolyte membrane that contains at least an ionic group-containing polymer electrolyte and a polyazole, which is a polymer electrolyte membrane in which a phase separation of 2 nm or larger in which the polyazole is a main component is not observed in transmission type electron microscopic observation.

公开(公告)号：US10103401B2

公开(公告)日：2018-10-16

申请号：US15302073

申请日：2015-04-03

Applicant: Toray Industries, Inc.

Inventor： Hiroaki Umeda ,  Daisuke Izuhara ,  Tomoyuki Kunita

IPC: H01M8/10 ,  H01M8/1051 ,  H01M8/1004 ,  H01M8/1025 ,  H01M8/1044 ,  H01M8/1046 ,  H01M8/1048 ,  H01M8/1018

Abstract: A polymer electrolyte composition includes at least an ionic group-containing polymer (A), an organic phosphorus-based additive (C), and a nitrogen-containing heteroaromatic additive (D), the nitrogen-containing heteroaromatic additive (D) containing at least three nitrogen-containing heteroaromatic rings in one molecule.

公开(公告)号：US20180290441A1

公开(公告)日：2018-10-11

申请号：US15766229

申请日：2016-11-15

Applicant: Toray Industries, Inc.

Inventor： Shinya Adachi ,  Yuka Fujieda ,  Daisuke Izuhara ,  Yuta Shintaku

IPC: B32B37/10 ,  B32B27/08 ,  B32B27/28 ,  B32B37/06 ,  B32B37/08 ,  H01M8/1004 ,  H01M8/1086 ,  H01M4/88

Abstract: A method of producing an assembly including a polymer electrolyte membrane includes a step of preliminary pressure application wherein a pressure is continuously applied to a recipient sheet including a polymer electrolyte membrane and an assembling sheet including an assembling layer to be assembled to at least one surface of the recipient sheet, the pressure being applied to the recipient sheet and the assembling layer of the assembling sheet being in contact with each other, and a step of heated pressure application wherein the recipient sheet and the assembling sheet after the preliminary pressure application step are subjected to continuous pressure application with heating.

公开(公告)号：US20180244882A1

公开(公告)日：2018-08-30

申请号：US15962960

申请日：2018-04-25

Applicant: TORAY INDUSTRIES, INC.

Inventor： Shinya Adachi ,  Daisuke Izuhara

IPC: C08J7/12 ,  H01M4/88 ,  C08J5/22 ,  C25B9/10 ,  H01M4/92 ,  H01M8/1018 ,  H01M8/1004 ,  H01M8/18 ,  H01M12/06

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, polysulf ones, 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.

公开(公告)号：US09553326B2

公开(公告)日：2017-01-24

申请号：US14843695

申请日：2015-09-02

Applicant: TORAY INDUSTRIES, INC.

Inventor： Daisuke Izuhara ,  Hiroaki Umeda ,  Emi Amano ,  Tomoyuki Kunita

IPC: C08G75/24 ,  C08G65/40 ,  C07C317/22 ,  H01B1/12 ,  C07C309/60 ,  H01M8/10 ,  C07C309/44 ,  H01B1/06 ,  H01M4/86 ,  H01M8/02

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：US12234565B2

公开(公告)日：2025-02-25

申请号：US16971148

申请日：2019-03-25

Applicant: Toray Industries, Inc.

Inventor： Kenta Minamibayashi ,  Yoshitsugu Funatsu ,  Yoko Sakiyama ,  Daisuke Ogata ,  Daisuke Izuhara

IPC: C25B13/02 ,  B01D69/10 ,  B01D69/12 ,  B01D71/48 ,  B01D71/52 ,  C25B1/04 ,  C25B9/19 ,  C25B11/056 ,  C25B11/069 ,  C25B13/08 ,  F04B45/047

Abstract: The purpose of the present invention is to provide a composite electrolyte membrane which has excellent chemical resistance and can maintain sufficient mechanical strength even under conditions of high humidity and high pressure, which are the operating conditions for electrochemical hydrogen pumps and water electrolyzers. This composite electrolyte membrane, which is for achieving said purpose, has a composite layer obtained by combining a polyelectrolyte with a mesh woven material that satisfies (1) and (2) and comprises liquid crystal polyester fibers or polyphenylene sulfide fibers. (1): Mesh thickness (μm)/fiber diameter (μm) 1.0.

公开(公告)号：US12062824B2

公开(公告)日：2024-08-13

申请号：US17785183

申请日：2020-12-21

Applicant: TORAY INDUSTRIES, INC.

Inventor： Yuta Shintaku ,  Ryuta Sakashita ,  Daisuke Izuhara ,  Kiyoshi Minoura ,  Mei Kumagai

IPC: H01M8/1004 ,  H01M4/88 ,  H01M4/90

CPC classification number: H01M8/1004 ,  H01M4/886 ,  H01M4/8882 ,  H01M4/8896 ,  H01M4/9083

Abstract: A method of manufacturing a membrane-electrode assembly including an electrolyte membrane and a catalyst layer-formed gas diffusion layer bonded to the electrolyte membrane, the method including: a liquid application step of applying, in the atmosphere, a liquid to only a surface of the catalyst layer before bonding; and a thermocompression bonding step of bonding, to the electrolyte membrane, the catalyst layer-formed gas diffusion layer to which the liquid is applied, by thermocompression bonding. Provided is a method of manufacturing a membrane-electrode assembly including a polymer electrolyte membrane and a catalyst layer-formed gas diffusion layer bonded to the polymer electrolyte membrane, in which the manufacturing method can achieve both the relaxation of thermocompression bonding conditions and the improvement of adhesion between the catalyst layer-formed gas diffusion layer and the electrolyte membrane with high productivity.

公开(公告)号：US11929511B2

公开(公告)日：2024-03-12

申请号：US17785530

申请日：2020-12-21

Applicant: TORAY INDUSTRIES, INC.

Inventor： Yuta Shintaku ,  Ryuta Sakashita ,  Daisuke Izuhara ,  Kiyoshi Minoura ,  Mei Kumagai

IPC: H01M4/88 ,  H01M8/1004 ,  H01M8/1023

CPC classification number: H01M4/881 ,  H01M4/8882 ,  H01M4/8896 ,  H01M8/1004 ,  H01M8/1023 ,  H01M2300/0082

Abstract: 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, in the atmosphere, a liquid to only a surface of the electrolyte membrane before bonding; and a thermocompression bonding step of bonding, to the catalyst layer, the electrolyte membrane to which the liquid is applied, by thermocompression bonding. Provided is a method of manufacturing a membrane-catalyst assembly including a polymer electrolyte membrane and a catalyst layer bonded to the polymer electrolyte membrane, in which the manufacturing method can achieve both the relaxation of thermocompression bonding conditions and the improvement of adhesion between the catalyst layer and the electrolyte membrane with high productivity.

公开(公告)号：US11108071B2

公开(公告)日：2021-08-31

申请号：US16245639

申请日：2019-01-11

Applicant: TORAY INDUSTRIES, INC.

Inventor： Daisuke Izuhara ,  Hiroshi Taiko ,  Yuriko Okada ,  Shinya Adachi ,  Masataka Nakamura

IPC: H01M8/1072 ,  H01M8/1025 ,  H01M8/1088 ,  C08G65/40 ,  C08J5/22 ,  H01B1/12 ,  H01M8/1041 ,  H01M8/04082 ,  H01M8/1018

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.

公开(公告)号：US20210095386A1

公开(公告)日：2021-04-01

申请号：US16971148

申请日：2019-03-25

Applicant: Toray Industries, Inc.

Inventor： Kenta Minamibayashi ,  Yoshitsugu Funatsu ,  Yoko Sakiyama ,  Daisuke Ogata ,  Daisuke Izuhara

IPC: C25B13/02 ,  C25B1/04 ,  C25B9/19 ,  C25B11/056 ,  C25B11/069 ,  C25B13/08

Abstract: The purpose of the present invention is to provide a composite electrolyte membrane which has excellent chemical resistance and can maintain sufficient mechanical strength even under conditions of high humidity and high pressure, which are the operating conditions for electrochemical hydrogen pumps and water electrolyzers. This composite electrolyte membrane, which is for achieving said purpose, has a composite layer obtained by combining a polyelectrolyte with a mesh woven material that satisfies (1) and (2) and comprises liquid crystal polyester fibers or polyphenylene sulfide fibers. (1): Mesh thickness (μm)/fiber diameter (μm) 1.0.