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:
Jan. 31, 2017

Filed:

Jan. 12, 2011
Applicants:

Masaru Oda, Utsunomiya, JP;

Teruyuki Ohtani, Haga-gun, JP;

Seiji Sugiura, Utsunomiya, JP;

Kenichi Tanaka, Utsunomiya, JP;

Hiroshi Sohma, Utsunomiya, JP;

Inventors:

Masaru Oda, Utsunomiya, JP;

Teruyuki Ohtani, Haga-gun, JP;

Seiji Sugiura, Utsunomiya, JP;

Kenichi Tanaka, Utsunomiya, JP;

Hiroshi Sohma, Utsunomiya, JP;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/242 (2016.01); H01M 8/0273 (2016.01); H01M 8/0276 (2016.01); H01M 8/24 (2016.01); H01M 8/02 (2016.01); H01M 8/10 (2016.01);
U.S. Cl.
CPC ...
H01M 8/242 (2013.01); H01M 8/0273 (2013.01); H01M 8/0276 (2013.01); H01M 8/0286 (2013.01); H01M 2008/1095 (2013.01); Y02E 60/50 (2013.01);
Abstract

Disclosed is a fuel cell in which an electrolyte membrane-electrode structure is held between the first separator and a second separator. The electrolyte membrane-electrode structure comprises a solid polymer electrolyte membrane, a cathode-side electrode and an anode-side electrode. An end portion of the solid polymer electrolyte membrane projects outwardly beyond end portions of gas diffusion layers, and the both surfaces of the end portion of the solid polymer electrolyte membrane are held between the first protective film and a second protective film. The thickness of the first protective film is set to be thinner than the thickness of the second protective film.


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