公开(公告)号：US20210013523A1

公开(公告)日：2021-01-14

申请号：US17029636

申请日：2020-09-23

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Ayako MIMATSU

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

Abstract: A membrane electrode assembly includes a polymer electrolyte membrane having a first surface and a second surface facing away from the first surface; an anode-side electrode catalyst layer bonded to the first surface; and a cathode-side electrode catalyst layer bonded to the second surface. The cathode-side electrode catalyst layer and the anode-side electrode catalyst layer each contain a catalyst material, a conductive carrier that supports the catalyst material, a polymer electrolyte, and a fibrous material. The thickness of the anode-side electrode catalyst layer is greater than the thickness of the cathode-side electrode catalyst layer.