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.