公开(公告)号：US20220216494A1

公开(公告)日：2022-07-07

申请号：US17441057

申请日：2020-03-19

Applicant: Toray Industries, Inc.

Inventor： Kenta Minamibayashi ,  Daisuke Ogata ,  Shusuke Shirai ,  Daisuke Izuhara

IPC: H01M8/1069 ,  H01M8/1039 ,  H01M8/1004

Abstract: A laminated electrolyte membrane including a first layer including a hydrocarbon polymer electrolyte as a major component, and a second layer including a fluoropolymer electrolyte and polyvinylidene fluoride as major components laminated on at least one side of the first layer, wherein the first layer and the second layer are laminated via a region in which components constituting both layers are mixed in a mixed region.

公开(公告)号：US20200091532A1

公开(公告)日：2020-03-19

申请号：US16077861

申请日：2017-02-13

Applicant: Toray Industries, Inc. ,  Japan Vilene Company, Ltd.

Inventor： Yumiko Okamoto ,  Daisuke Izuhara ,  Junpei Yamaguchi ,  Shusuke Shirai ,  Tomoyuki Kunita ,  Hiroaki Umeda ,  Yuuta Wakamoto ,  Tatsunori Ito ,  Noriko Michihata ,  Takashi Tarao

IPC: H01M8/1004 ,  H01M8/1081 ,  H01M8/1044 ,  H01M8/1086 ,  D04H1/728 ,  D04H1/551 ,  D04H1/4366

Abstract: A composite polymer electrolyte membrane has a high proton conductivity even under low-humidity, low-temperature conditions, a reduced dimensional change rate, a high mechanical strength and high chemical stability, and produces a solid polymer electrolyte fuel cell with a high output and high physical durability, a membrane electrode assembly, and a solid polymer electrolyte fuel cell containing the same. This composite polymer electrolyte membrane contains a composite layer composed mainly of a polyazole-containing nanofiber nonwoven fabric (A) and an ionic group-containing polymer electrolyte (B), the polyazole-containing nanofiber nonwoven fabric (A) being basic.

公开(公告)号：US10224562B2

公开(公告)日：2019-03-05

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

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：US20180053956A1

公开(公告)日：2018-02-22

申请号：US15557217

申请日：2016-03-10

Applicant: Toray Industries, Inc.

Inventor： Junpei Yamaguchi ,  Daisuke Izuhara ,  Hiroaki Umeda ,  Yumiko Okamoto

IPC: H01M8/106 ,  H01B1/12 ,  H01M8/1004 ,  H01M8/1025 ,  H01M8/1053 ,  H01M8/1072 ,  H01M8/1027 ,  H01M8/1032 ,  C08G81/00

CPC classification number: H01M8/106 ,  C08G61/12 ,  C08G65/4012 ,  C08G81/00 ,  C08G2261/1452 ,  C08G2261/312 ,  C08G2261/3444 ,  C08G2261/412 ,  C08G2261/516 ,  C08J5/2281 ,  H01B1/06 ,  H01B1/122 ,  H01M8/1004 ,  H01M8/1025 ,  H01M8/1027 ,  H01M8/1032 ,  H01M8/1053 ,  H01M8/1072 ,  H01M2008/1095 ,  H01M2300/0082 ,  H01M2300/0094 ,  Y02P70/56

Abstract: A composite polymer electrolyte membrane includes a composite layer of an aromatic hydrocarbon-based polymer electrolyte and a fluorine-containing polymer porous membrane, wherein a ratio (O/F ratio) of an atomic composition percentage of oxygen O (at %) to an atomic composition percentage of fluorine F (at %) on an outermost surface of the fluorine-containing polymer porous membrane as measured by X-ray photoelectron spectroscopy (XPS) is 0.20 or more to 2.0 or less, and the aromatic hydrocarbon-based polymer electrolyte in the composite layer forms a phase separation structure.

公开(公告)号：US09748593B2

公开(公告)日：2017-08-29

申请号：US14647781

申请日：2013-11-22

Applicant: TORAY INDUSTRIES, INC.

Inventor： Tomoyuki Kunita ,  Daisuke Izuhara ,  Naoki Shimoyama ,  Yuka Fujieda ,  Hiroaki Umeda

IPC: H01M8/10 ,  H01M8/103 ,  C08L71/10 ,  C08L101/02 ,  H01B1/12 ,  H01M8/1025 ,  H01M8/1044 ,  H01M8/1051 ,  C08J5/22 ,  C08K5/3437 ,  C08K5/42 ,  H01M8/1004 ,  H01M8/1018

CPC classification number: H01M8/103 ,  C08G2650/40 ,  C08J5/2256 ,  C08J2371/10 ,  C08K5/3437 ,  C08K5/42 ,  C08L71/00 ,  C08L71/10 ,  C08L101/02 ,  H01B1/122 ,  H01M8/1004 ,  H01M8/1025 ,  H01M8/1044 ,  H01M8/1051 ,  H01M2008/1095 ,  H01M2250/20 ,  H01M2250/30 ,  H01M2300/0082 ,  Y02B90/18 ,  Y02E60/521 ,  Y02T90/32

Abstract: The present invention provides: a polymer electrolyte composition which can achieve excellent proton conductivity under slightly humidified conditions, excellent mechanical strength and excellent physical durability, has excellent practicality, and can be produced using a nitrogen-containing additive, wherein the nitrogen-containing additive can prevent the elution of the additive under a strongly acidic atmosphere during the operation of a fuel cell, has excellent chemical stability so as to tolerate a strongly acidic atmosphere, can be dissolved in various general-purpose organic solvents, has superior processability, can be mixed with an ionic-group-containing polymer, can prevent the occurrence of phase separation during the formation of a film, and can prevent the formation of an island-in-sea-like phase separation structure or the occurrence of bleeding out during the formation of a film; and a polymer electrolyte membrane, a membrane electrode assembly and a polymer electrolyte fuel cell, each of which is produced using the polymer electrolyte composition. The polymer electrolyte composition according to the present invention comprises at least an ionic-group-containing polymer (A) and a nitrogen-containing additive (B), said polymer electrolyte composition being characterized in that the nitrogen-containing additive (B) is represented by a specific structural formula.

公开(公告)号：US09673468B2

公开(公告)日：2017-06-06

申请号：US14304643

申请日：2014-06-13

Applicant: TORAY INDUSTRIES, INC.

Inventor： Daisuke Izuhara ,  Yuriko Okada

IPC: C08L61/12 ,  C08L71/10 ,  H01M8/10 ,  C08G65/40 ,  H01M8/1025 ,  C08J5/22 ,  H01B1/12 ,  H01M8/1067 ,  H01M8/1072 ,  H01M8/1018

CPC classification number: H01M8/1025 ,  C08G65/4012 ,  C08G65/4056 ,  C08J5/2256 ,  C08J5/2262 ,  C08J2371/10 ,  C08J2371/12 ,  C08J2387/00 ,  C08L2205/05 ,  H01B1/122 ,  H01M8/1067 ,  H01M8/1072 ,  H01M2008/1095 ,  H01M2300/0082 ,  Y02P20/582 ,  Y02P70/56

Abstract: It is an object of the present invention to provide a polymer electrolyte material which has excellent proton conductivity even under the conditions of a low humidity or a low temperature and is excellent in mechanical strength and fuel barrier properties, and which moreover can achieve high output, high energy density and long-term durability in forming a polymer electrolyte fuel cell therefrom, and a polymer electrolyte form article using the same and a method for producing the same, a membrane electrode assembly and a polymer electrolyte fuel cell, each using the same.The present invention employs the following means. Namely, the polymer electrolyte material of the present invention is a polymer electrolyte material including a constituent unit (A1) containing an ionic group and a constituent unit (A2) substantially not containing an ionic group, wherein a phase separation structure is observed by a transmission electron microscope and a crystallization heat measured by differential scanning calorimetry is 0.1 J/g or more, or a phase separation structure is observed by a transmission electron microscope and the degree of crystallinity measured by wide angle X-ray diffraction is 0.5% or more. Also, the polymer electrolyte form article, the membrane electrode assembly and the polymer electrolyte fuel cell of the present invention are characterized by being composed of such polymer electrolyte materials.

公开(公告)号：US20170018793A1

公开(公告)日：2017-01-19

申请号：US15124044

申请日：2015-03-06

Applicant: Toray Industries, Inc.

Inventor： Tomoyuki Kunita ,  Daisuke Izuhara ,  Hiroaki Umeda

IPC: H01M8/103 ,  H01M8/1027 ,  C08G75/23 ,  C08J5/22 ,  C08G73/18

CPC classification number: H01M8/103 ,  C08G65/4012 ,  C08G65/405 ,  C08G65/4056 ,  C08G73/18 ,  C08G75/23 ,  C08G2650/40 ,  C08J5/2256 ,  C08J5/2268 ,  C08J2379/04 ,  C08J2381/06 ,  C08J2479/04 ,  C08L71/00 ,  C08L71/08 ,  C08L79/04 ,  H01B1/122 ,  H01M8/1025 ,  H01M8/1027 ,  H01M8/1032 ,  H01M8/1044 ,  H01M2008/1095 ,  H01M2300/0082

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.

Abstract translation: 聚合物电解质组合物的实用性优异，具有能够在燃料电池运行时能够承受强氧化性气氛的优异的化学稳定性，能够在低加湿条件下优异的质子传导性和优异的机械强度， 物理耐久性以及使用该聚合物电解质组合物的聚合物电解质膜，膜电极组件和聚合物电解质燃料电池。 高分子电解质膜是含有至少含有离子性基团的高分子电解质和聚合物电解质膜的高分子电解质膜，聚合物电解质膜是聚合物电解质膜，其中以聚合物为主要成分的相位为2nm以上的相分离 观察透射型电子显微镜观察。

公开(公告)号：US20140335440A1

公开(公告)日：2014-11-13

申请号：US14346684

申请日：2012-09-20

Applicant: TORAY INDUSTRIES, INC.

Inventor： Tomoyuki Kunita ,  Daisuke Izuhara ,  Yuka Yachi

IPC: H01M8/10

CPC classification number: H01M8/1032 ,  C08G65/4025 ,  C08G65/4043 ,  C08G65/4056 ,  C08J5/2256 ,  C08J2371/12 ,  C08J2481/02 ,  H01B1/122 ,  H01M8/1025 ,  H01M8/1039 ,  H01M8/1048 ,  H01M8/1051 ,  H01M2008/1095 ,  H01M2300/0082 ,  Y02P20/582

Abstract: [Summary]To provide a formed article of polymer electrolyte composition which exhibits excellent proton conductivity even under low-humidification conditions and under low-temperature conditions, which is excellent in chemical stability, mechanical strength, fuel shutoff properties, and which can achieve high output, high energy density, and excellent long-term durability when used in a polymer electrolyte fuel cell; and also to provide a polymer electrolyte fuel cell using thereof. The formed article of polymer electrolyte composition includes: a block copolymer having one or more of each of a hydrophilic segment (A1) containing an ionic group and a hydrophobic segment (A2) not containing an ionic group; and an additive, wherein the formed article forms co-continuous or lamellar phase separation structure, and the additive is hydrophilic.

Abstract translation: [摘要]提供即使在低加湿条件下和在低温条件下也具有优异的质子传导性的聚合物电解质组合物的成型体，其化学稳定性，机械强度，燃料切断性能优异，可以实现高产出 ，高能量密度，以及当用于聚合物电解质燃料电池时具有优异的长期耐久性; 并且还提供使用其的聚合物电解质燃料电池。 聚合物电解质组合物的成型体包括：含有离子性基团的亲水性链段（A1）和不含离子性基团的疏水性链段（A2）的一个或多个的嵌段共聚物; 和添加剂，其中所形成的制品形成共连续或层状相分离结构，并且添加剂是亲水性的。

公开(公告)号：US12148964B2

公开(公告)日：2024-11-19

申请号：US17642817

申请日：2020-09-11

Applicant: TORAY INDUSTRIES, INC.

Inventor： Tomoyuki Kunita ,  Kenta Minamibayashi ,  Daisuke Ogata ,  Daisuke Izuhara

IPC: H01M8/1067 ,  H01M8/10 ,  H01M8/1004 ,  H01M8/106 ,  H01M8/1062

Abstract: A composite polymer electrolyte membrane including a polymer electrolyte and a porous substrate, and having a dry tensile modulus of 100 N/cm or more per width and a wet tensile modulus of 35 N/cm or more per width. Enhancing the mechanical characteristics of the electrolyte membrane results in providing an electrolyte membrane that achieves good dry-wet cycle durability.

公开(公告)号：US11973252B2

公开(公告)日：2024-04-30

申请号：US17441057

申请日：2020-03-19

Applicant: Toray Industries, Inc.

Inventor： Kenta Minamibayashi ,  Daisuke Ogata ,  Shusuke Shirai ,  Daisuke Izuhara

IPC: H01M8/1069 ,  B01D69/12 ,  H01M8/10 ,  H01M8/1004 ,  H01M8/1039

CPC classification number: H01M8/1069 ,  B01D69/1216 ,  H01M8/1004 ,  H01M8/1039 ,  H01M2008/1095 ,  H01M2300/0082

Abstract: A laminated electrolyte membrane including a first layer including a hydrocarbon polymer electrolyte as a major component, and a second layer including a fluoropolymer electrolyte and polyvinylidene fluoride as major components laminated on at least one side of the first layer, wherein the first layer and the second layer are laminated via a region in which components constituting both layers are mixed in a mixed region.