公开(公告)号：US20230006216A1

公开(公告)日：2023-01-05

申请号：US17571662

申请日：2022-01-10

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： So Young LEE ,  Seung Ju LEE ,  Jin Hyeon CHOI ,  Jeawoo JUNG ,  Hyoung-Juhn KIM ,  Sung Jong YOO ,  Hee-Young PARK ,  Bora SEO ,  Jin Young KIM ,  Jong Hyun JANG

IPC: H01M4/86 ,  H01M8/1004 ,  H01M8/1018 ,  H01M4/90 ,  H01M4/92

Abstract: The present disclosure relates to antioxidant for a polymer electrolyte membrane fuel cell electrode catalyst, which includes cerium hydrogen phosphate (HCe2(PO4)3(H2O)) in the form of a nanofiber, and an electrode and a membrane-electrode assembly including the same. The electrode for a polymer electrolyte membrane fuel cell of the present disclosure, wherein the antioxidant is dispersed, can improve the mechanical strength of an electrode catalyst layer and can minimize deterioration of chemical durability even after long-term operation. And, a fuel cell including the same can exhibit high output performance and can operate stably even after long-term operation.

公开(公告)号：US20230163317A1

公开(公告)日：2023-05-25

申请号：US17855068

申请日：2022-06-30

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sung Jong YOO ,  Myeong-Geun KIM ,  Bora SEO ,  Hee-Young PARK ,  So Young LEE ,  Hyun Seo PARK ,  Jin Young KIM ,  Hyoung-Juhn KIM ,  Jong Hyun JANG

IPC: H01M4/92 ,  H01M4/90

CPC classification number: H01M4/923 ,  H01M4/9083

Abstract: The present disclosure relates to a method for preparing a catalyst for a fuel cell, a catalyst for a fuel cell and a fuel cell including the same. More specifically, the catalyst for a fuel cell according to the present disclosure, wherein ruthenium chalcogenide including the 1T phase exists as single-walled nanotubes, can reduce manufacturing cost by exhibiting superior catalytic activity so as to replace the existing platinum catalyst and can significantly improve stability.

公开(公告)号：US20220170168A1

公开(公告)日：2022-06-02

申请号：US17537209

申请日：2021-11-29

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Han Ik JO ,  Hee-Young PARK ,  Jong Hyun JANG ,  Hyun S. PARK ,  Bora SEO ,  Hyoung-Juhn KIM ,  Sung Jong YOO

IPC: C25B11/052 ,  C25B1/04 ,  C25B11/081

Abstract: The present disclosure provides a high-performance electrode for water electrolysis using electrospray, a membrane electrode assembly including the same, a water electrolysis device including the electrode for water electrolysis, and a method for manufacturing the electrode for water electrolysis. The present disclosure is to provide a membrane electrode assembly (MEA) having increased porosity by using electrospray, and to apply the membrane electrode assembly to electrolysis.

公开(公告)号：US20250019847A1

公开(公告)日：2025-01-16

申请号：US18700216

申请日：2022-09-15

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jin Young KIM ,  Youngjoon LIM ,  Taehyun KWON ,  Byeong-jo MIN ,  Bora SEO ,  Hee-Young PARK ,  So Young LEE ,  Hyun Seo PARK ,  Sung Jong YOO ,  Hyoung-Juhn KIM ,  Jong Hyun JANG

IPC: C25B13/08 ,  C25B13/02

Abstract: The present disclosure relates to a multilayer reinforced composite electrolyte membrane and a method for manufacturing the same. The multilayer reinforced composite electrolyte membrane according to the present disclosure has sufficient mechanical properties and improved membrane resistance at the same time since a porous support is impregnated in an ionomer and it is stacked in a multilayer structure. Furthermore, since the composite electrolyte membrane has no wrinkles and cracks due to excellent dimensional stability, it can improve the electrochemical properties of batteries.

公开(公告)号：US20230163318A1

公开(公告)日：2023-05-25

申请号：US17862644

申请日：2022-07-12

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sung Jong YOO ,  Dong Wook LEE ,  Bora SEO ,  So Young LEE ,  Hee-Young PARK ,  Hyun Seo PARK ,  Jin Young KIM ,  Hyoung-Juhn KIM ,  Jong Hyun JANG ,  Daeil CHOI

IPC: H01M4/92

CPC classification number: H01M4/926

Abstract: The present disclosure relates to a catalyst for a fuel cell, a fuel cell including the same and a method for preparing the catalyst for a fuel cell. More specifically, the catalyst for a fuel cell according to the present disclosure can exhibit superior catalytic activity as compared to the existing catalyst even when the catalyst metal is used at a very low content because some metal of the metal nanoparticles distributed on a carbon support is replaced with catalyst metal single atoms.

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.