Mitsubishi Heavy Industries Limited

Takuya Moriga

Hideki Ito

Akihiko Yamada

Satoru Watanabe

Toshiro Kobayashi

Toshirou Kobayashi

Hideki Itou

Tomoyuki Kajiwara

Shigeru Tsurumaki

Ichiro Toyoda

Provided is a solid polyelectrolyte fuel cell capable of suppressing a gas leak between a fuel electrode film side and an oxide electrode film side by suppressing deterioration of a solid polyelectrolyte film on its peripheral side. A solid polyelectrolyte fuel cell includes: a cell in which electrode films are provided on one side and the other side of a solid polyelectrolyte film, respectively; a first gas diffusion layer provided so as to cover the electrode film on one side of the cell; a second gas diffusion layer provided so as to cover the electrode film on the other side of the cell; and separators provided on the one side and the other side of the cell, respectively, with the gas diffusion layers interposed therebetween. The solid polyelectrolyte fuel cell includes: first insulating layers which are provided between the solid polyelectrolyte film of the cell and the gas diffusion layers and have electrical insulating properties; and second insulating layers which are provided on peripheral edges of the gas diffusion layers and have electrical insulating properties.

Solid polyelectrolyte fuel cell

A polymer electrolyte fuel cell comprising a cell having a solid polymer film, separators disposed on both sides of the cell so as to interpose the cell therebetween, and diffusion layers disposed between the cell and the separators and each having a substrate comprising an electrically conductive porous material and a slurry layer disposed on the substrate, wherein at least a part of each diffusion layer is provided with a gas barrier for preventing the permeation of gas in a direction parallel to the major surface of the diffusion layer.

Solid polymer type fuel battery

Disclosed is a fuel cell stack, comprising a fuel cell laminate body prepared by laminating a plurality of unit cells each having a solid polymer membrane sandwiched between electrodes and a fastening means for fastening the fuel cell laminate body in the direction of lamination of the unit cells, wherein the fastening means includes support members equipped with flanges and arranged at the upper and lower edges of the fuel cell laminate body, thin plates joined to the support members at the upper and lower end portions of the fuel cell laminate body, and fastening bolts for fastening the support members in the vertical direction of the fuel cell laminate body.

Fuel cell stack with fastening means including support members and flanges

Growing community of inventors

Hiroshima, Japan

Takuya Moriga