公开(公告)号：US20210119237A1

公开(公告)日：2021-04-22

申请号：US16859712

申请日：2020-04-27

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： So Young LEE ,  Seung Ju LEE ,  Min Jae LEE ,  Hyun Seo PARK ,  Jong Hyun JANG ,  Hyoung-Juhn KIM ,  Suk Woo NAM ,  Young Suk JO ,  Yeong Cheon KIM

IPC: H01M8/1051 ,  H01M8/103 ,  H01M8/1072

Abstract: The present disclosure relates to a polymer electrolyte membrane for medium and high temperature, a preparation method thereof and a high-temperature polymer electrolyte membrane fuel cell including the same, more particularly to a technology of preparing a composite membrane including an inorganic phosphate nanofiber incorporated into a phosphoric acid-doped polybenzimidazole (PBI) polymer membrane by adding an inorganic precursor capable of forming a nanofiber in a phosphoric acid solution when preparing phosphoric acid-doped polybenzimidazole and using the same as a high-temperature polymer electrolyte membrane which is thermally stable even at high temperatures of 200-300° C. without degradation of phosphoric acid and has high ion conductivity.

公开(公告)号：US20200152996A1

公开(公告)日：2020-05-14

申请号：US16386395

申请日：2019-04-17

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyoung-Juhn KIM ,  Min Jae LEE ,  Ju Sung LEE ,  Katie Heeyum LIM ,  So Young LEE ,  Hee-Young PARK ,  Hyun Seo PARK ,  Jin Young KIM ,  Sung Jong YOO ,  Jong Hyun JANG

IPC: H01M4/88 ,  H01M8/1004 ,  H01M4/86 ,  H01M4/92 ,  H01M8/103

Abstract: Disclosed is a method for producing an electrode for a high temperature polymer electrolyte membrane fuel cell. According to the method, a catalyst slurry containing a uniformly dispersed binder is used to produce an electrode. Also disclosed are a membrane electrode assembly using the electrode and a high temperature polymer electrolyte membrane fuel cell including the membrane electrode assembly. Uniform distribution of the binder leads to improvements in the performance and reproducibility of the fuel cell.