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.

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：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.