The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 21, 2023
Filed:
Apr. 29, 2019
Toray Advanced Materials Korea Inc., Gyeongsangbuk-do, KR;
Young Woo Choi, Cheongju-si, KR;
Mi Soon Lee, Jeonju-si, KR;
Young Gi Yoon, Daejeon, KR;
Tae Young Kim, Jeonju-si, KR;
Min Ho Seo, Yongin-si, KR;
Beom Jun Kim, Jeollabuk-do, KR;
Chi Young Jung, Seongnam-si, KR;
Jong Min Lee, Jeonju-si, KR;
Toray Advanced Materials Korea Inc, Gyeongsangbuk-do, KR;
Abstract
Disclosed are a micropore-filled amphoteric membrane for low vanadium ion permeability, a method of manufacturing the same, and a vanadium redox flow battery including the amphoteric membrane. The micropore-filled amphoteric membrane for low vanadium ion permeability minimizes crossover of vanadium ions, which occurs between a catholyte and an anolyte in a redox flow battery, and has low membrane resistance and thus has remarkably improved performance as compared to commercially available ion-exchange membranes such as Nafion, and accordingly, can be effectively used in the manufacture of a redox flow battery. In addition, the micropore-filled amphoteric membrane is continuously manufactured through a roll-to-roll process, and thus the manufacturing process is simple and manufacturing costs can be greatly reduced.