公开(公告)号：US20220085386A1

公开(公告)日：2022-03-17

申请号：US17470120

申请日：2021-09-09

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sung Jong YOO ,  Sang Moon KIM ,  Changwook SEOL ,  Segeun JANG

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

Abstract: The present disclosure relates to a membrane electrode assembly including: a polymer electrolyte membrane; an anode catalyst layer formed on one side of the polymer electrolyte membrane; a cathode catalyst layer formed on the other side of the polymer electrolyte membrane; and a porous carbon layer formed on the cathode catalyst layer on the side opposite to the side contacting with the polymer electrolyte membrane and comprising a polymer binder and a carbon particle, and a fuel cell including the same. The present disclosure can prevent water evaporation from an electrolyte under low-humidity environment while minimizing decrease in performance under high-humidity operating environment and can improve fuel cell performance by facilitating the back diffusion of water generated at the cathode.