公开(公告)号：US20230120463A1

公开(公告)日：2023-04-20

申请号：US17911870

申请日：2021-03-08

Applicant: TORAY INDUSTRIES, INC.

Inventor： Kazuma MATSUI ,  Eiko YOSHIOKA ,  Takashi KONISHI ,  Daisuke OGATA ,  Daisuke IZUHARA

IPC: H01M8/18 ,  H01M8/1023 ,  H01M8/1039 ,  H01M8/1053

Abstract: Provided is an electrolyte membrane including at least the following: an A-layer composed of an ion-conducting fluorinated polymer and a non-ion-conducting fluorinated polymer; and a B-layer composed of an ion-conducting hydrocarbon polymer, wherein the ion-conducting hydrocarbon polymer is dispersed in the A-layer. Provided is an electrolyte membrane having excellent oxidation resistance. In addition, provided is an electrolyte membrane for a redox-flow battery, in which the electrolyte membrane used as a barrier membrane for a redox-flow battery makes it possible to achieve high power efficiency and stable charge and discharge even in long-term use.

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：US20220037663A1

公开(公告)日：2022-02-03

申请号：US17277035

申请日：2019-09-20

Applicant: TORAY INDUSTRIES, INC.

Inventor： Eiichiro TAMAKI ,  Hiroaki KAWAMURA ,  Takashi KONISHI ,  Hiroyuki SUGAYA

IPC: H01M4/583 ,  H01M4/36 ,  H01M10/0525 ,  H01M4/133 ,  H01M4/131

Abstract: An object of the present invention is to provide an electrode which can achieve both safety and a high energy density at high levels, and is used in a secondary battery such as a lithium ion secondary battery. The present invention is an electrode for secondary batteries including a positive electrode mixture layer containing, as positive electrode active materials, at least an olivine-based positive electrode active material and a layered oxide-based positive electrode active material, wherein: a total weight fraction of the positive electrode active materials in the positive electrode mixture layer is 80% by weight or more and 99% by weight or less; a weight fraction of the olivine-based positive electrode active material is 10% by weight or more and 65% by weight or less; a weight fraction of the layered oxide-based positive electrode active material is 30% by weight or more and 80% by weight or less; and the positive electrode mixture layer contains graphene.