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公开(公告)号：US12227858B2
公开(公告)日：2025-02-18
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
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.
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公开(公告)号：US11649551B2
公开(公告)日：2023-05-16
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
CPC classification number: C25B9/23 , B01D67/0011 , B01D67/0013 , B01D71/06 , C25B1/04 , C25B9/73 , C25B11/04 , C25B13/02 , C25B13/08 , B01D2325/023 , B01D2325/42
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.
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