公开(公告)号：US20220149409A1

公开(公告)日：2022-05-12

申请号：US17599991

申请日：2020-03-05

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hitoshi ISHIMOTO ,  Takeshi MINAMIURA ,  Shinichiro IMURA ,  Yoshifumi TAGUCHI ,  Tsutomu KAWASHIMA

IPC: H01M8/1004 ,  H01M4/86

Abstract: A membrane-electrode assembly includes an electrolyte membrane, a pair of catalyst layers stacked on surfaces of the electrolyte membrane, and a pair of gas diffusion layers stacked on a side opposite to the electrolyte membrane of one of the pair of catalyst layers and on a side opposite to the electrolyte membrane of the other one of the catalyst layers. One of the pair of catalyst layers contains catalyst particles and a first conductive material. One of the pair of gas diffusion layers in contact with the one of the catalyst layers contains a second conductive material. The first conductive material includes a first particulate conductive member and a first fibrous conductive member, and the second conductive material includes a second fibrous conductive member. The content K2 by mass of the second fibrous conductive member is larger than the content K1 by mass of the first fibrous conductive member.

公开(公告)号：US20210336279A1

公开(公告)日：2021-10-28

申请号：US17312588

申请日：2019-11-28

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tsutomu FUJII ,  Yoshifumi TAGUCHI ,  Yasumichi YOSHIHARA ,  Kozue KUNIYOSHI

IPC: H01M8/0271 ,  H01M8/1004

Abstract: A fuel cell module that suppress deterioration of an electrolyte membrane is provided. The fuel cell module includes a membrane-electrode assembly (MEA) including a polymer electrolyte membrane, an anode catalyst layer disposed on a surface of the membrane, a cathode catalyst layer disposed on the other surface of the membrane, and a pair of gas diffusion layers laminated on the anode catalyst layer and the cathode catalyst layer respectively, a pair of separators sandwiching the MEA; and a sealing member sealing the MEA and each of the pair of separators together. One gas diffusion layer and the sealing member overlaps in a thickness direction within a region including a center-side edge of the sealing member, and the one gas diffusion layer is notched through in the thickness direction at a part of a portion corresponding to the region.