Gasstrompassagenbildungselement und Zelle für eine Brennstoffzelle

Details

Veröffentlichungs-Nr.

EP3276722

Aktenzeichen

EP17183337

Anmeldetag

26. Juli 2017

Veröffentlichung

16. Oktober 2019

Erteilung

16. Oktober 2019

Rechtsraum

EP

IPC

H01M8/0258H01M8/0254H01M8/04119// H01M8/1018H01M8/0206

Abstract

A gas flow passage-forming member (10) is disposed between a membrane electrode and gas diffusion layer assembly (12) and a separator (13) of a fuel cell, and the gas flow passage-forming member (10) is configured to form a gas flow passage (Ar). The gas flow passage-forming member (10) has a corrugated shape such that groove portions (31, 33) and ridge portions (32, 34) are provided on each of a front side and a back side of the gas flow passage-forming member (10). The groove portions (31) each serve as the gas flow passage (Ar). The gas flow passage-forming member (10) has communication holes (41) providing communication between the front side and the back side, and the communication holes (41) are provided in a region downstream of an upstream region (30A) in a gas flow direction. The upstream region (30A) is a non-communication region with no communication hole (41).

Anmelder

Firmen

TOYOTA JIDOSHA KABUSHIKI KAISHA
TOYOTA SHATAI KABUSHIKI KAISHA

Land

🇯🇵 Japan

Fachgebiete