公开(公告)号：US20220243345A1

公开(公告)日：2022-08-04

申请号：US17589466

申请日：2022-01-31

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyoung-Juhn KIM ,  Taekyung LEE ,  So Young LEE ,  Hee-Young PARK ,  Bora SEO ,  Hyun Seo PARK ,  Jong Hyun JANG ,  Tae Hoon LIM

IPC: C25B13/08 ,  C25B1/04

Abstract: The present disclosure relates to a polybenzimidazole-based electrolyte membrane for alkaline water electrolysis, which includes a polybenzimidazole-based polymer, wherein the polybenzimidazole-based polymer is a biaxially oriented film. The polybenzimidazole-based electrolyte membrane for alkaline water electrolysis can reduce the concentration of an alkaline solution by improving the crystallinity of a polybenzimidazole-based polymer to increase the resistance against base, significantly improving the long-term stability of alkaline water electrolysis using a polybenzimidazole-based electrolyte membrane through the improved resistance against base, and by increasing the operation temperature to enhance the catalyst activity.

公开(公告)号：US20210332486A1

公开(公告)日：2021-10-28

申请号：US17038331

申请日：2020-09-30

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： So Young LEE ,  Hyoung-Juhn KIM ,  Sae Yane BAEK ,  Taekyung LEE ,  Sung Jong YOO ,  Jong Hyun JANG ,  Hee-Young PARK ,  Jin Young KIM ,  Hyun S. PARK

IPC: C25B9/10 ,  C25B1/10 ,  C25B13/02 ,  C25B13/08 ,  C25B11/04 ,  B01D67/00 ,  B01D71/06

Abstract: The present disclosure discloses an asymmetric electrolyte membrane, a membrane electrode assembly including the same, a water electrolysis apparatus including the same and a method for manufacturing the same. More particularly, it discloses an asymmetric electrolyte membrane having a porous layer and a dense layer at the same time, a membrane electrode assembly including the same, a water electrolysis apparatus including the same and a method for manufacturing the same.