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:
Apr. 08, 2014

Filed:

Feb. 13, 2009
Applicants:

Shuichi Suzuki, Hitachi, JP;

Jun Kawaji, Hitachi, JP;

Osamu Kubota, Tokai, JP;

Yoshiyuki Takamori, Hitachinaka, JP;

Makoto Morishima, Hitachinaka, JP;

Inventors:

Shuichi Suzuki, Hitachi, JP;

Jun Kawaji, Hitachi, JP;

Osamu Kubota, Tokai, JP;

Yoshiyuki Takamori, Hitachinaka, JP;

Makoto Morishima, Hitachinaka, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/24 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides a method of preventing liquid fuel that has penetrated from an anode from reaching a cathode and of effectively utilizing a cathode catalyst, which provides a membrane electrode assembly for fuel cell having high output density. In a membrane electrode assembly for fuel cell including an anode formed of a catalyst and a solid polymer electrolyte, a cathode formed of a catalyst and a solid polymer electrolyte, and a solid polymer electrolyte membrane formed between the anode and the cathode, an intermediate layer is formed between the cathode and the electrolyte membrane.


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