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:
Jan. 31, 2023
Filed:
Apr. 27, 2020
Korea Institute of Science and Technology, Seoul, KR;
So Young Lee, Seoul, KR;
Seung Ju Lee, Seoul, KR;
Min Jae Lee, Seoul, KR;
Hyun Seo Park, Seoul, KR;
Jong Hyun Jang, Seoul, KR;
Hyoung-Juhn Kim, Seoul, KR;
Suk Woo Nam, Seoul, KR;
Young Suk Jo, Seoul, KR;
Yeong Cheon Kim, Seoul, KR;
Korea Institute of Science and Technology, Seoul, KR;
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.