The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 07, 2017

Filed:

Aug. 17, 2009
Applicants:

Seiji Sugiura, Utsunomiya, JP;

Narutoshi Sugita, Utsunomiya, JP;

Inventors:

Seiji Sugiura, Utsunomiya, JP;

Narutoshi Sugita, Utsunomiya, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/0254 (2016.01); H01M 8/0267 (2016.01); H01M 8/02 (2016.01); H01M 8/04 (2016.01); H01M 8/10 (2016.01);
U.S. Cl.
CPC ...
H01M 8/0206 (2013.01); H01M 8/0254 (2013.01); H01M 8/0267 (2013.01); H01M 8/04074 (2013.01); H01M 2008/1095 (2013.01); Y02E 60/50 (2013.01);
Abstract

In a power generation unit of a fuel cell stack, bosses of a first metal separator and bosses of a second metal separator are provided to sandwich a first membrane electrode assembly at first sandwiching positions on both sides of the first membrane electrode assembly, oppositely to each other in a stacking direction. Bosses of a second metal separator and bosses of a third metal separator are provided to sandwich a second membrane electrode assembly at second sandwiching positions on both sides of the second membrane electrode assembly, oppositely to each other in the stacking direction. Bosses of the first metal separator and bosses of the third metal separator protrude toward a coolant flow field, and contact each other at positions offset from the first and second sandwiching positions.


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