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：US20220336836A1

公开(公告)日：2022-10-20

申请号：US17640959

申请日：2020-09-11

Applicant: TORAY INDUSTRIES, INC.

Inventor： Kenta MINAMIBAYASHI ,  Tomoyuki KUNITA ,  Daisuke OGATA ,  Daisuke IZUHARA

IPC: H01M8/1039 ,  H01M8/1004 ,  H01M8/1058 ,  H01M8/1081

Abstract: A composite electrolyte membrane having a composite layer that is a composite of a hydrocarbon polymer electrolyte and a fluorine-containing polymer porous substrate, wherein a fractal dimension D exhibiting the distribution of the hydrocarbon polymer electrolyte and the fluorine-containing polymer porous substrate in the composite layer is 1.7 or more. An object of the present invention is to enable a composite electrolyte membrane composed of a hydrocarbon polymer electrolyte and a fluorine-containing polymer porous substrate to achieve high proton conduction ability and high mechanical durability.

公开(公告)号：US20240417861A1

公开(公告)日：2024-12-19

申请号：US18702070

申请日：2022-10-18

Applicant: TORAY INDUSTRIES, INC.

Inventor： Kenta MINAMIBAYASHI ,  Daisuke IZUHARA ,  Takashi KONISHI ,  Shusuke SHIRAI

IPC: C25B1/04 ,  C25B9/23 ,  C25B11/031 ,  C25B11/061 ,  C25B11/065 ,  C25B11/075

Abstract: An object of the present invention is to provide an electrode assembly for water electrolysis, in which an electrolyte membrane is kept from being deteriorated. The present invention provides an electrode structure for water electrolysis, including an anode electrode and a cathode electrode disposed to face each other, characterized in that at least one of the anode electrode and the cathode electrode includes a porous component and a reticular component in order from the facing surface side, and the standard deviation of a pressure distribution at the surface of contact between the anode electrode and the cathode electrode, determined by the following measurement method, is 2.7 MPa or less.

After a test piece that has a pressure measurement film sandwiched between the anode electrode and the cathode electrode is pressurized at 4 MPa for 2 minutes, the pressure distribution obtained by a pressure analysis from a color image of the pressure measurement film, obtained from a pressure image analysis system, is defined as a pressure distribution at the surface of contact between the anode electrode and the cathode electrode, and the standard deviation of the pressure distribution is determined.

公开(公告)号：US20220407101A1

公开(公告)日：2022-12-22

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 ,  H01M8/106 ,  H01M8/1062 ,  H01M8/1004

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.