公开(公告)号：US12021284B2

公开(公告)日：2024-06-25

申请号：US16865576

申请日：2020-05-04

Applicant: AGC Inc.

Inventor： Yasushi Yamaki ,  Kosuke Sumikura ,  Tatsuya Miyajima ,  Takuo Nishio

IPC: H01M8/1039 ,  C08J5/22 ,  H01M8/10 ,  H01M8/1023 ,  H01M8/18

CPC classification number: H01M8/1039 ,  C08J5/2237 ,  H01M8/1023 ,  H01M8/188 ,  C08J2327/18 ,  H01M2008/1095

Abstract: The present invention provides an ion exchange membrane can improve the current efficiency of a redox flow battery without a drop in voltage efficiency, when used in the redox flow battery. The ion exchange membrane of the present invention is an ion exchange membrane comprising a fluorinated polymer having sulfonic acid functional groups, wherein the difference (D−Dc) between the distance D between ionic clusters and the diameter Dc of ionic clusters as measured by the small angle X-ray scattering is 0.60 nm or more, and the ion exchange capacity of the fluorinated polymer is 0.95 meq/gram dry resin or more.

公开(公告)号：US11575140B2

公开(公告)日：2023-02-07

申请号：US15861095

申请日：2018-01-03

Applicant: AGC Inc.

Inventor： Hiroyuki Watabe ,  Satoru Hommura ,  Jun Kato ,  Tatsuya Miyajima

IPC: H01M8/1006 ,  C08F14/26 ,  C08F16/24 ,  C08J3/02 ,  C08L101/02 ,  C08F14/18 ,  H01M8/1023 ,  H01M8/1039 ,  H01M4/86 ,  H01M8/1004 ,  H01M8/10

Abstract: To provide a liquid composition with which a catalyst layer and a polymer electrolyte membrane will hardly be broken at the time of their formation and a method for producing the liquid composition; and a method for producing a membrane/electrode assembly by which a catalyst layer and a polymer electrolyte membrane will hardly be broken at the time of their formation.
A liquid composition comprising a polymer having ion exchange groups, water and an organic solvent, wherein the average secondary particle size of the polymer having ion exchange groups is from 100 to 3,000 nm, and the primary particle size parameter represented by the product of the average primary particle size (nm) and the ion exchange capacity (meq/g dry resin) of the polymer having ion exchange groups, is from 12 to 20.

公开(公告)号：US11958950B2

公开(公告)日：2024-04-16

申请号：US17063058

申请日：2020-10-05

Applicant: AGC Inc.

Inventor： Shintaro Hayabe ,  Osamu Homma ,  Yasushi Yamaki ,  Tatsuya Miyajima ,  Takuo Nishio

IPC: C08J5/22 ,  H01M8/1039

CPC classification number: C08J5/2225 ,  H01M8/1039 ,  C08J2327/12

Abstract: An ion exchange membrane containing a fluorinated polymer, wherein in a case where by Raman spectroscopy, polarized light orthogonal to the thickness direction of the ion exchange membrane is irradiated to obtain a spectrum chart, whereby the ratio of the peak area a2 of Raman shift 680 to 760 cm−1 to the peak area al of Raman shift 1,025 to 1,095 cm−1 is taken as A1, and by Raman spectroscopy, to a cross section in the thickness direction of the ion exchange membrane, polarized light parallel with the thickness direction is irradiated to obtain a spectrum chart, whereby the ratio of the peak area b2 of Raman shift 920 to 1,025 cm−1 to the peak area b1 of Raman shift 1,025 to 1,095 cm−1 is taken as B1, B1/A1 is at least 1.05.

公开(公告)号：US20180354841A1

公开(公告)日：2018-12-13

申请号：US16103296

申请日：2018-08-14

Applicant: AGC Inc.

Inventor： Yasuhiro KUNISA ,  Seiji Miyazaki ,  Nobuhiro Shinohara ,  Tatsuya Miyajima

IPC: C03C3/083 ,  C03B1/02 ,  C03C1/02

CPC classification number: C03C3/083 ,  C03B1/02 ,  C03C1/02 ,  C03C1/026 ,  C03C3/085 ,  C03C3/087

Abstract: To provide high-strength granules having a broad range of applications of the glass composition, and a method for their production. The method for producing glass raw material granules comprises mixing and granulating a glass raw material composition with water, wherein the glass raw material composition contains at least silica and an aluminum source, and the aluminum source contains hydraulic alumina.