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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.

Patent No.:

US 9929422 B1

PDFFull Text
Date of Patent:
Mar. 27, 2018

Filed:

Feb. 09, 2016

Membrane electrode assembly and method of producing the membrane electrode assembly

Applicant:

Honda Motor Co., Ltd., Tokyo, JP;

Inventors:

Yoshinori Kawamura, Tochigi-ken, JP;

Satoshi Yonezawa, Utsunomiya, JP;

Tomohide Shibutani, Utsunomiya, JP;

Shunsuke Konishi, Saitama, JP;

Takahiro Hirano, Utsunomiya, JP;

Hiroshi Kurata, Saitama, JP;

Assignee:

HONDA MOTOR CO., LTD., Tokyo, JP;

Attorney:

Rankin, Hill & Clark LLP

Primary Examiner:

Yoshitoshi Takeuchi

Int. Cl.
CPC ...
H01M 4/88 (2006.01); H01M 8/1004 (2016.01); B29C 41/02 (2006.01); B29C 41/46 (2006.01); B29C 69/00 (2006.01); H01M 4/86 (2006.01); B32B 37/00 (2006.01); B32B 37/06 (2006.01); B32B 37/08 (2006.01); B32B 5/02 (2006.01); B32B 9/00 (2006.01); B32B 9/04 (2006.01); B32B 27/08 (2006.01); B29K 105/00 (2006.01); B29L 31/34 (2006.01); B29C 41/12 (2006.01); H01M 8/1018 (2016.01); B32B 38/10 (2006.01); B32B 37/24 (2006.01); B32B 38/16 (2006.01);
U.S. Cl.
CPC ...
H01M 8/1004 (2013.01); B29C 41/02 (2013.01); B29C 41/46 (2013.01); B29C 69/00 (2013.01); B32B 5/02 (2013.01); B32B 9/007 (2013.01); B32B 9/045 (2013.01); B32B 27/08 (2013.01); B32B 37/025 (2013.01); B32B 37/06 (2013.01); B32B 37/08 (2013.01); H01M 4/8642 (2013.01); H01M 4/8663 (2013.01); H01M 4/881 (2013.01); B29C 41/12 (2013.01); B29K 2105/0073 (2013.01); B29K 2995/0005 (2013.01); B29L 2031/3406 (2013.01); B32B 38/10 (2013.01); B32B 2037/243 (2013.01); B32B 2038/168 (2013.01); B32B 2255/10 (2013.01); B32B 2262/106 (2013.01); B32B 2264/00 (2013.01); B32B 2307/724 (2013.01); B32B 2457/18 (2013.01); H01M 4/8814 (2013.01); H01M 4/8828 (2013.01); H01M 2008/1095 (2013.01); Y02P 70/56 (2015.11);
Abstract

In a membrane electrode assembly, electrode catalyst layers are provided respectively on both surfaces of an electrolyte membrane. Each of the electrode catalyst layers includes polymer electrolyte and catalyst. In each of the electrode catalyst layers, the weight of a component of the polymer electrolyte contained in one surface facing the electrolyte membrane is twice as large as, or more than twice as large as the weight of the component of the polymer electrolyte contained in another surface.

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