公开(公告)号：US10826098B2

公开(公告)日：2020-11-03

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: H01M8/103 ,  H01M8/1044 ,  H01M8/1081 ,  D04H1/551 ,  D04H1/728 ,  D04H1/4366 ,  H01M8/1004 ,  H01M8/1086 ,  H01M8/1018

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：US10026983B2

公开(公告)日：2018-07-17

申请号：US15490846

申请日：2017-04-18

Applicant: TORAY INDUSTRIES, INC.

Inventor： Daisuke Izuhara ,  Yuriko Okada

IPC: C08L61/12 ,  H01M8/1025 ,  C08G65/40 ,  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：US20170033387A1

公开(公告)日：2017-02-02

申请号：US15302213

申请日：2015-04-06

Applicant: Toray Industries, Inc. ,  Daimler AG ,  Ford Motor Company

Inventor： Hiroaki Umeda ,  Daisuke Izuhara ,  Yuka Fujieda ,  Jing Li ,  Yunsong Yang ,  Keping Wang

IPC: H01M8/1048 ,  H01M8/1025 ,  H01B1/12 ,  H01M8/1032 ,  H01M8/1023 ,  C08J5/22 ,  H01M8/1039

CPC classification number: H01M8/1048 ,  C08J5/2256 ,  C08J2361/16 ,  C08J2371/00 ,  C08J2381/06 ,  C08K3/10 ,  C08K5/3432 ,  C08K5/3437 ,  C08K5/49 ,  C08K5/50 ,  C08L71/00 ,  C08L101/12 ,  H01B1/122 ,  H01M8/1023 ,  H01M8/1025 ,  H01M8/1032 ,  H01M8/1039 ,  H01M8/1051 ,  H01M2008/1095 ,  C08L71/12

Abstract: An excellent polymer electrolyte composition has excellent chemical stability of being resistant to strong oxidizing atmosphere during operation of fuel cell, and achieves excellent proton conductivity under low-humidification conditions, excellent mechanical strength and physical durability. A polymer electrolyte membrane, a membrane electrode assembly, and a polymer electrolyte fuel cell each use the same. The polymer electrolyte composition contains an ionic group-containing polymer (A), a phosphorus-containing additive (B), and a nitrogen-containing aromatic additive (C), the phosphorus-containing additive (B) and the nitrogen-containing aromatic additive (C) being a compound represented by specific structural formulae.

Abstract translation: 优异的聚合物电解质组合物在燃料电池运转时耐强氧化气氛具有优异的化学稳定性，并且在低加湿条件下具有优异的质子传导性，优异的机械强度和物理耐久性。 聚合物电解质膜，膜电极组件和聚合物电解质燃料电池均使用它们。 高分子电解质组合物含有含离子性基团的聚合物（A），含磷添加剂（B）和含氮芳香族添加剂（C），含磷添加剂（B）和含氮芳香族添加剂 （C）是由具体结构式表示的化合物。

公开(公告)号：US20140377686A1

公开(公告)日：2014-12-25

申请号：US14367139

申请日：2012-12-14

Applicant: TORAY INDUSTRIES, INC.

Inventor： Daisuke Izuhara ,  Tomoyuki Kunita ,  Yuka Yachi

IPC: H01M8/10

CPC classification number: H01M8/1048 ,  C08J5/2256 ,  C08J2371/12 ,  C08K5/5337 ,  H01B1/122 ,  H01B1/22 ,  H01M8/1025 ,  H01M8/1051 ,  H01M2008/1095

Abstract: Provided are: a practically excellent polymer electrolyte composition having excellent chemical stability of being resistant to strong oxidizing atmosphere during operation of fuel cell, and achieving excellent proton conductivity under low-humidification conditions, excellent mechanical strength and physical durability; a polymer electrolyte membrane, a membrane electrode assembly, and a polymer electrolyte fuel cell each using the same. The polymer electrolyte composition of the present invention comprises at least an ionic group-containing polymer (A) and a phosphorus-containing additive (B), the phosphorus-containing additive (B) being at least one of a phosphine compound and a phosphinite compound. The polymer electrolyte membrane, the membrane electrode assembly, and the polymer electrolyte fuel cell of the present invention are structured by the polymer electrolyte composition.

Abstract translation: 提供：具有优异的化学稳定性，在燃料电池运行时耐强氧化气氛，在低加湿条件下优异的质子传导性，优异的机械强度和物理耐久性的高分子电解质组合物; 高分子电解质膜，膜电极组件和聚合物电解质燃料电池。 本发明的高分子电解质组合物至少含有含离子性基团的聚合物（A）和含磷添加剂（B），所述含磷添加剂（B）为膦化合物和膦化合物中的至少一种 。 本发明的高分子电解质膜，膜电极接合体以及固体高分子型燃料电池由高分子电解质组合物构成。