公开(公告)号：US10385188B2

公开(公告)日：2019-08-20

申请号：US15584645

申请日：2017-05-02

Applicant: JAPAN VILENE COMPANY, LTD.

Inventor： Yusuke Kosaka ,  Takashi Tarao

IPC: C08K7/08 ,  D01F9/08 ,  C04B35/622 ,  D01D5/00 ,  D01D1/02 ,  B32B18/00 ,  C04B35/624 ,  C08K3/22

Abstract: Disclosed are an inorganic nanofiber characterized in that the average fiber diameter is 2 μm or less, the average fiber length is 200 μm or less, and the CV value of the fiber length is 0.7 or less; and a method of manufacturing the same. In the manufacturing method, an inorganic nanofiber sheet consisting of inorganic nanofibers having an average fiber diameter of 2 μm or less is formed by electrospinning, and then, the inorganic nanofiber sheet is pressed using a press machine and crushed so that the average fiber length becomes 200 μm or less, and the CV value of the fiber length becomes 0.7 or less.

公开(公告)号：US10889700B2

公开(公告)日：2021-01-12

申请号：US16460599

申请日：2019-07-02

Applicant: JAPAN VILENE COMPANY, LTD.

Inventor： Yusuke Kosaka ,  Takashi Tarao

IPC: D01F9/08 ,  C04B35/622 ,  C04B35/624 ,  D01D1/02 ,  D01D5/00 ,  C08K7/08 ,  B32B18/00 ,  C08K3/22

Abstract: Disclosed are an inorganic nanofiber characterized in that the average fiber diameter is 2 μm or less, the average fiber length is 200 μm or less, and the CV value of the fiber length is 0.7 or less; and a method of manufacturing the same. In the manufacturing method, an inorganic nanofiber sheet consisting of inorganic nanofibers having an average fiber diameter of 2 μm or less is formed by electrospinning, and then, the inorganic nanofiber sheet is pressed using a press machine and crushed so that the average fiber length becomes 200 μm or less, and the CV value of the fiber length becomes 0.7 or less.

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：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：US09685663B2

公开(公告)日：2017-06-20

申请号：US14891025

申请日：2014-05-15

Applicant: Japan Vilene Company, Ltd.

Inventor： Tatsunori Ito ,  Takashi Tarao

IPC: H01M4/86 ,  H01M8/0234 ,  H01M8/0239 ,  H01M8/0243 ,  H01M8/1018

CPC classification number: H01M4/8626 ,  H01M4/8605 ,  H01M8/0234 ,  H01M8/0239 ,  H01M8/0243 ,  H01M2008/1095

Abstract: The base material for a gas diffusion electrode of the present invention comprises a nonwoven fabric containing conductive fibers that contain conductive particles at least in the inside of an organic resin, and is characterized in that a specific apparent Young's modulus of the base material for a gas diffusion electrode is 40 [MPa/(g/cm3)] or more. Since the base material contains conductive fibers that contain conductive particles at least in the inside of an organic resin, it is flexible, and as a result, a polymer electrolyte membrane is not directly damaged. Further, since the specific apparent Young's modulus is 40 [MPa/(g/cm3)] or more, which indicates a high rigidity, and swelling and shrinkage of the polymer electrolyte membrane can be inhibited, cracking of the polymer electrolyte membrane can be avoided.